Crist Instrument Co

CRIST INSTRUMENT COMPANY, INC. 

PROFILE 

Crist Instrument Company, Inc. started as a service to researchers who had specific apparatus requirements 

but could not find the appropriate equipment to meet their exacting needs or were just not completely satisfied 

with the items that were available. Because of the unique problem solving ability of the founding members of 

Crist Instrument, scientists began to seek their service and advice. This design service provided solutions to 

research problems and proved to be very helpful over the years. 

Demand for our advice as well as requests to design, modify and fabricate this type of research equipment 

continued to grow. In 1990, it was determined that to continue to be a part of the leading edge of medical 

research, the firm would have to expand. Crist Instrument Company, Inc. was born. 

Through in depth discussions, Crist Instrument Company, Inc. has provided ideas for the development of new 

device and the modification of existing devices to enable researchers the world over to follow their desired 

line of research. The result is many types of “state of the art” apparatus and equipment that assist continuing 

medical research. 

As a corporation, we feel that our primary mission is to provide products with excellent quality, to design and 

modify mechanical apparatus and suggest new uses for devices already available. We will also continue to 

add apparatus to our list of equipment that we have found to be valuable in the research field. It is our 

pleasure to provide you with products that assist your work, from a single small item to a complete onsite 

laboratory installation with a variety of mechanical and now electronic apparatus and equipment to aid the 

ever-growing research community. 

We look forward to continuing our assistance to the leading edge of medical research and providing you with 

consultation, design assistance and the manufacture of the tools you’ll need to get the most from your 

research. 

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111West First Street, Hagerstown MD 21740 USA 

Telephone: 301-393-8615 · FAX: 301-393-8618 

E-mail: Pat@cristinstrument.com · Website: http://www.cristinstrument.com 

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Crist Instrument Co., Inc. 

Serving the Biomedical research Industry Since 1985 

Consulting, Custom design of mechanical apparatus 

Production of R&D Instrumentation 

TERMS OF SALE & POLICIES 

Domestic and International Terms of Sale & Policies are as follows: 

Hours of Operation: We are available by telephone between 7:00 a.m. and 4:00 p.m. US Eastern Time, however if your normal 

business hours conflict due to time zone differences, a special appointment can be arranged. You can also contact us by FAX and E- 

Mail 24 hours a day. Our engineering, production, and Sales Departments are available to discuss aspects of your order or our 

products. 

Quotation Prices: The quoted prices for items of your inquiry are guaranteed for 60 days. After 60 days the price is subject to 

change; however, we do make every effort to hold quotes firm as long as possible. Upon receipt of your order, prices are firm until 

filled. Rush orders can be made for standard off-the-shelf products (in stock only); and will be shipped with-in 24 hours of the receipt 

of the Purchase Order. Discounts are available for larger volumes. All products manufactured by Crist Instrument Company, Inc. are 

made in the U.S.A. unless otherwise noted. 

Purchase Orders: The preferred method for ordering products and/or customized apparatus is via a Purchase Authorization from 

your purchasing agent or via credit card. Credit card purchases require the cardholders’ information as directed by federal and 

banking regulations. Credit Card orders will not be charged until shipped unless otherwise advised. A copy of the shipping invoice 

will be sent to the end user or the purchasing authority at the cardholder’s address. Payment in advance is acceptable in lieu of 

Purchase Orders. If your organization is tax or import duty exempt, please provide documentation at the time of the order. This will 

facilitate the transfer of your goods through customs. 

Terms for Payment: Terms are net 30 from the date of the Invoice for established accounts and an Invoice will be sent via Fax, e- 

mail or Postal Service to the responsible paying party. Payment may be arranged in several ways. Please advise which method will 

be best for you at time of placing your order. Payment options include: 1) Direct payment by Wire Transfer. We will supply banking 

information on request. 2) A check drawn on a corresponding bank in US Dollars. 3) Payment through Visa or Master Card. 4) 

Letter of Credit. Payments are only accepted in US Dollars unless prior arrangements are made. Finance charges are levied on 

balances not received within 45 days of the Invoice date at a rate of 1.5% per month. Also, payments received 45 days after the date 

of the invoice will affect any discounts to which your organization may be entitled including future purchases. 

Event of Default: If payment is not forthcoming within 90 days of the date of the Invoice it will be considered in default of the 

Agreement. Crist Instrument Co. shall have the right to exercise all remedies available to it under the applicable laws of the State of 

Maryland. Which include but are not limited to the entitlement to obtain, at the expense of the Purchaser any record searches, reports 

and legal and other opinions and advice as may be deemed necessary to collect this obligation. The Purchasing organization agrees to 

pay all costs, fees, and expenses in connection with the preparation, execution and any and all other costs, fees and expenses incurred 

by, or on behalf of Crist Instrument Co., Inc. without limitation, including attorneys’ fees and expenses, and Enforcement Costs. 

Ownership of Design and Related Documents: All drawings; specifications; magnetic or electronic media, including without 

limitation, software; calculations; and other information gained, resulting from your purchase of custom items which are designed by 

Crist Instrument Company, Inc., shall remain the property of Crist Instrument, unless such materials are included in the Purchase 

Order as a separate line item. All design work as defined above is not subject to use by others without the express written permission 

of Crist Instrument Company, Inc. All materials as described above containing proprietary information shall be returned to Crist 

Instrument Company, Inc. at the Buyer's expense. 

Returns: We make every effort to prevent customers from receiving goods that may be contaminated or cross-contaminated. Crist 

Instrument Company, Inc. will accept returns only under the following conditions: 

1) Products that have been in direct contact with animals or may have been in contact with animals cannot be returned. 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



2) Products that are acceptable for return will be charged a 25% restocking fee, with the exception of returns for modifications or 

repair. 

3) Products being returned for any reason, including modification or repair require an RMA #. Products being returned for repair or 

modification that have been in contact with animals must be thoroughly cleaned prior to shipping. If they are not cleaned before we 

receive them, they will be returned at your expense and will be subject to additional shipping and handling fees. 

Warranties: Crist Instrument Co., Inc. warrants, to the original end user only, that our products substantially conform to the 

specifications as designed and are substantially free from defects in material and workmanship. Provided that Crist Instrument Co., 

Inc. is notified of defects within the warranty period (set forth below) and in accordance with paragraphs as detailed below, we will 

correct all defects in materials and/or workmanship. The warranty begins from the date of product delivery with respect to the 

products as listed below: 

Section 1 - 

Primate Chair bodies and attached accessories to the body only, six months. This warranty will be voided if plastic parts are 

cleaned with non-compatible solutions and/or if this product is subjected to harsh treatment in a cage washer. 

Chair Bases and Trolleys are warranted for a period of one year. 

Section 2 - 

Poles and collars are warranted for a period of one year. 

Section 3 - 

Recording Microsyringes, Multi-electrodes are warranted for a period of 30 days. 

Miniature Microdrives are warranted for a period of 90 days. 

Section 4 - 

Touch Panel Sensors are warranted for a period of 6 months. 

Commutators are warranted for a period of 1 year. 

Section 5 - 

Reward Systems are warranted for a period of 6 months except for Solenoids. 

Solenoids located on the Dispenser Unit are warranted for period of 3 months due to material failure UNLESS this item 

shows evidence of overheating as a result of customer failure by leaving this product turned to the Drain Setting. Warranty 

also does not extend to failure due to pulp clogs. 

Section 6 – 

Metal devices are warranted for a period of one year for defects in materials or workmanship only. 

Plastic devices are warranted for a period of 90 days. Warranty is voided if temperatures exceed manufacturers’ 

recommendation for the particular type of plastic or if during application the product is subject to excessively rapid heating 

and cooling. 

Section 7 - 

Search Coils, Tangent Screens and optical devices manufactured by Crist Instrument Co., Inc. are warranted for a period of 

one year. 

Eye Tracking Controllers are warranted by the manufacturer for a period of one year. 

Section 8 - 

Laminated products are warranted for a period of one year. Warranty may be voided if product is subjected to high-pressure 

steam or high-pressure water or harsh chemicals for cleaning. 

Section 9 - 

Stereotaxic Frames are warranted for a period of one year. 

If the purchaser discovers within the warranty period as described a warranted defect for the product in question, the purchaser must 

notify Crist Instrument Co., Inc. The purchaser will receive instructions regarding procedures to follow regarding return and/or 

replacement of the product in question. All repairs will be performed at Crist Instrument Co., Inc. facility in Hagerstown, Maryland 

unless otherwise advised. 

Crist Instrument Co., Inc. does not warrant any products, components or parts not manufactured by Crist Instrument Co., Inc., defects 

caused by the purchaser's failure to provide a suitable installation environment for the product, damage caused by the use of the 

product for purposes other than those for which it was designed, damage caused by disasters such as fire, flood, wind or lightening 

unless and to the extent that the product specification provides for a resistance to a defined disaster, or acts of vandalism or terrorism, 

damage caused by unauthorized modifications or attachments, or any misuse by the purchaser. 

Termination: Notwithstanding any contrary terms contained above, the Buyer shall have the right at their discretion, five (5) days 

following the Buyer's written notice to Crist Instrument Company, Inc. to cancel in whole or part, the Buyer's order or any contract 

resulting from its acceptance. In the event of such a cancellation, the Buyer will be obligated to pay for any costs, which have been 

incurred by Crist Instrument Company, Inc. prior to the date of termination, plus a normally accepted trade allowance on such costs as 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



full payment of overhead and profit, provided. However, in no event shall the Buyer be obligated to pay an amount in excess of the 

amount set out in the Buyer's order for the items or services being canceled. 

Shipping Procedures: Small orders are shipped UPS (United Parcel Service) or Federal Express unless specified otherwise. Large 

Orders such as large laboratory set-ups are shipped airfreight by the most cost effective shipper available at the time. If your 

Organization has a shipper or broker of preference, we will use your shipper. The cost of shipping including insurance will be added 

to your order. Charges for duties and other expenses (brokerage fees or value added taxes) are the responsibility of the Buyer*. Wire 

Transfer charges levied by your bank are the Buyers Responsibility. Shipping charges are usually prepaid and added to your order 

unless we are directed otherwise and other arrangements are made to cover these expenses, when the Order is placed. 

*INTERNATIONAL CUSTOMERS: At the time of your order please provide Crist Instrument Company, Inc. with any of the 

following information: 

1. V.A.T. Exemption Certificates 

2. Broker Information 

We realize that the products our clients order are often needed on a time limited basis and this information will help speed your 

shipment through Customs. 

Thank you for your cooperation and for using Crist Instruments and Apparatus 

Sincerely, 

J.M. Burkholder 

Crist Instrument Company, Inc. 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



Crist Instrument Company is Located in Time Zone 5. Our Hours are: 7:00 AM to 4:00 PM. 

If you would like to speak to a representative, but your hour’s conflict with ours, please 

contact us and we will make an appointment to talk with you. 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



Crist Instrument Co., Inc. 

Company Founders 

Joan M. Burkholder – C.E.O., Crist Instrument Co., Inc. 

Joan began her professional career at the age of eight. She often worked in her great aunt’s health 

food store, where she stocked shelves, worked as a cashier, and performed other tasks crucial to the business. 

By the time she was sixteen, she was managing the store and serving all business functions in her great aunt’s 

absence. Joan was also involved with her father’s business. He was a residential construction contractor, and 

Joan would often assist him with his work. 

Joan became involved with the National Institutes of Health (NIH) in Bethesda, MD in 1961. She 

started work in the shop area, scheduling the construction and maintenance work for all NIH facilities. At the 

time, all construction and maintenance for NIH was done “in house” – none being contracted out. During this 

time, she was active in developing procedures and charts for controlling this operation. After she left NIH, 

many of her systems continued to be used by her successors. 

Next, she transferred to the Security and Safety Division. As an administrator of this division, she was 

instrumental in developing training programs for the Locksmith Shop. She also worked closely with the Training Office 

in developing the Conversion Program. This program was designed to provide guards with the opportunity to become 

U.S. Police officers. Joan also developed budgets and hiring programs for the Locksmith, Security, Police, and Fire 

Departments. 

Subsequent to leaving NIH, Joan worked as an administrator for the Department of Housing and 

Urban Development (DHUD). There, she was very active in upgrading working conditions at the Baltimore 

office. While staying under budget, she organized the Baltimore office’s move to a new facility. 

After ending her work for the government, Joan began to work as a consultant for several companies 

in the D.C. – Baltimore area where she provided operations improvements, orchestrated company moves to 

new locations, etc. She soon teamed up with Charles Crist to start Crist Instrument Co., Inc. 

While holding these noteworthy positions, Joan also managed to continue her education and raise a 

family. Joan earned a B.S., having majored in Business Administration and minored in both Chemistry and 

Architecture. She has also raised five children. 

Charles F. Crist – Executive Vice President, Crist Instrument Co., Inc. 

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Charles (Chuck) Crist started his career as an electrician installing lighting in 

homes and in gas stations. 


Telephone: 301-393-8615 · FAX: 301-393-8618 


In 1956 he received a commission by the Navy 

Department and was accepted in their Apprenticeship Training Program with the 

intent of becoming a Master Electrician. As there were no openings in that area he 


accepted a training position as a Machinist temporarily. During his training he 

worked on a variety of armaments like the 16-inch battleship guns, the Gatling gun 

and the 30mm cannon. In 1960 he graduated at the top of his class with two years of 

college as a Journeyman Machinist. That same year he transferred to the National 

Institutes of Health. 

He began his work in the biomedical field at NIH in Bethesda, MD with the Arthritis 

Institute in the Laboratory of Physical Biology. During Chuck’s 22-year tenure with 

this group he worked with many experts in a broad range of disciplines. Drawing on 

his knowledge acquired from his earlier training in mechanical principles and 

machine shop knowledge he was able to create equipment and apparatus to augment 

the research in this group. Working on a one-to-one basis he developed a thorough 

understanding of the type of data his scientists wished to collect as well as the proper 

form and format. His designs and fabrications required him to draw upon his broad 

knowledge of electrical, electronics, hydraulics, materials characteristics, i.e. 

chemical resistances, strengths, flexibility and life. 

Among the many devices he developed, some were used for studies of fireflies. The 

‘Borneo Bug Gun’, which was designed by Chuck, recorded the synchronized 

flashing of fireflies. It was used in some of Dr. John Buck’s studies of synchrony. 

Chuck also did work with fluid surface tension measurement and molecular modeling 

and built one of the early hemoglobin models for Dr. Muriyama. 

While at the Arthritis Institute, Chuck developed important apparatus and 

equipment for muscle-related research. He developed a system for studying 

simultaneous x-ray and laser diffraction patterns from the same sarcomere of a single 

muscle fiber. This system provided for the electrical stimulation of the muscle while 

the reaction pattern was measured and recorded, it enabled researchers to measure 

both the force and distance traveled by the contraction. Chuck also developed the 

system in which the muscle was kept alive in a re-oxygenated saline bath. This 

allowed the muscle to be cycled approximately 100 times per 24-hour period. 

Chuck was also responsible for the design and creation of several other useful 

instruments while at the Arthritis Institute. Chuck’s design of a cold finger for the 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



Raman Spectrophotometer facilitated the crystallization of gaseous elements. He 

created a complex mirror-bending device for use with a spray of Copper K-alpha x- 

rays from a GX 13 Generator. This device allowed for very fine focusing at very 

high intensities. Additionally, he designed many tools for use with electron 

microscopes and constructed a number of models based on electron micrographs. 

Chuck transferred from the Arthritis Institute to the Eye Institute of NIH 

where he worked as their Biomedical Engineer. He worked with Dr. Robert Wurtz in 

the Laboratory of Sensory Motor Research and other senior scientists in the lab. 

While Chuck was there, it became necessary for the facility to create ten new 

research labs. Time was of the essence, as all ten labs had to be installed very 

quickly to allow incoming postdoctoral students to work with the senior scientists. 

Modified electronic racks had to be installed. Existing cables had to be wired to 

equipment. Eye coil systems had to be built and hooked up, and a hoisting system 

for the coil frames had to be manufactured. Primate chairs that would be universal to 

all of the labs and an accompanying positioning system for the chairs had to be 

developed. As the designer, builder and installer Chuck dealt directly with all of the 

issues as they related uniquely to the setup of each of the ten new labs. 

Because Chuck also personally designed and manufactured unique 

equipment to meet the particular needs of each of the individual labs when they were 

being initially installed, he was repeatedly called upon when new researchers and 

changing research dictated modifications and replacements of equipment. The many 

years spent periodically renovating these labs – designing and manufacturing 

specialized, custom-built equipment gave him a unique insight into the needs of 

researchers in this field. 

While working with Dr. Wurtz in Building 10 at NIH, Chuck developed 

many important devices at the NIH facilities. He worked on the Rear Projection 

Screen and co-authored a paper with David Lee on the results of the device. He 

developed the process of using Denril drafting paper with an acrylic base for creating 

brighter and sharper imaging. Chuck developed the syringe that simultaneously 

recorded and injected material to create a lesion without extracting or moving the 

electrode. He was also involved in the creation of mirror scanning devices that used 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



LED or laser light sources as well as general scanning motors and controllers to 

move and position the device’s fixation point. Chuck developed the grid system for 

precise mapping of the brain and adapters to use this system with a variety of 

microdrives. He developed the knurled base on the Evarts Style chamber, later 

adding the pin to help accurately position the grid and grid adapters repeatedly in the 

same position. He created a trapeze system to support large screens and allow for 

precise adjustment. Chuck developed microdrives for use with specialized chambers 

and adapters. He has also been very active in the on-going development and 

adaptation of the basic primate chair. 

After many years at NIH, Chuck retired in 1992. He has since focused on 

work at Crist Instrument Co., Inc. where he had already been intimately involved in 

product engineering since the company’s creation in 1990. He is also proud of the 

fact that three of his five children are employed in the company as well. 

P.S. He is still waiting for that transfer for training in the electrical trade. 

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Telephone: 301-393-8615 · FAX: 301-393-8618 



Section 1 – Primate Chairs 

1-Primate chairs 

Primate chairs from Crist Instrument Co., Inc. are 

designed to enable researchers to restrain primates effectively 

in a wide variety of research scenarios. Our chairs may be 

used in protocols ranging from standard vision studies to 

complex behavioral experiments. The numerous available 

styles and options, in combination with custom design 

options, allow our chairs to fit the protocols set forth by the 

researcher, rather than force researchers to design their 

protocols according to standard features of the chair. 

Our standard models come equipped with a variety of 

features. Most of our chairs are made from polycarbonate, a 

plastic that is stronger than acrylic yet transparent to permit 

easy viewing of the subject in the chair. Corners are 

reinforced with aluminum for extra strength. The main body 

of the chair, which holds the subject, is ventilated and permits 

movement of arms and legs, reducing muscle atrophy and 

discomfort. The two-part neck plate restrictors adjust to 

allow the chair to fit different primates. Trolley and base 

wheels have a locking swivel castor design for increased 

stability. 

All models include the following features: 

· All edges are rounded or de-burred; there are no 

sharp edges on any part of the chair. 

· A removable waste tray and drip lip are included. The 

drip lip is located above the waste tray to direct any 

waste towards the waste tray. With this waste 

containment system, AAALAC has been known to 

waive some of the requirements for research room 

sanitation. 

· A safety restraint chain is included. 

· A perch for the primate is adjustable (up and down) 

for the comfort of the subject. On most models, this 

is made from stainless steel and aluminum. 

· All chairs of any size that are ordered with a tall base 

will have the eye height set to 47-48 inches unless 

specified otherwise. 

Upon special request, all of our chair designs can be 

modified to meet your specific protocol. If these chairs do 

not meet your requirements, see the chair option sections for 

additional available chair options. If you require 

specifications that are not listed, please call your Crist 

Instrument Company sales representative, and they will be 

happy to assist you. 

Primate chairs, 

Transport trolleys and 

Positioners 


Telephone: 301-393-8615 · FAX: 301-393-8618 



PRODUCT INFORMATION 

The basic descriptions below should get you started with your chair selection. While some of the features are 

automatically included (e.g. perch bars), you can select other options to customize your chair(s) to fit your research 

program. Our chairs are available in the sizes listed below. 

1-CC 

Standard Primate Chair Models 

The standard size is the chair size most frequently ordered. It accommodates primates that weigh up to 9 kilograms. The 

primate compartment measures 10” x 10” x 23” (25.40cm x 25.40cm x 58.42cm). 

Catalog numbers beginning with 1-CCP indicates that the chair front panels are either plain or include a touch bar 

handle. Catalog numbers beginning with 1-CCC indicates that the chairs have small removable front panels. 

These panels can be modified to hold touch bars, joysticks, or other tasking devices. 

1-CM 

Mini Primate Chair Models 

This model accommodates small primates, the size of squirrel monkeys. The compartment size is 6” x 6.5” x 8.5” 

(15.24cm x 16.51cm x 21.59cm). 8.5” (21.59cm) is the maximum height to the shoulder. The rear door includes a 

small cutaway area to accommodate a stiff tail. 

1-CS 

Small Primate Chair Models 

This model accommodates primates ranging in size from the squirrel monkey to the macaque. The compartment size is 

8” x 8” x 21” (20.32cm x 20.32cm x 53.34cm). This is an excellent size for small Macaques. 

1-CL 

Large Primate Chair Models 

The large chair was designed for primates weighing up to 18 kilograms. The primate compartment is the same basic 

design as the standard model, only larger. It measures 12” x 12” x 25” (30.48cm x 30.48cm x 63.50cm). 

SPECIFICATIONS 

MATERIAL: 

Our standard chairs are constructed with polycarbonate material, which is more impact and heat resistant than 

acrylic (Plexiglas). Because it can withstand more heat and abuse than acrylic, it has a more extended useful life. The 

chairs should be hand washed and sanitized with a mild disinfectant and hot water, the temperature of which should not 

exceed 190 degrees. You may add a few drops of bleach to the wash water, then rise thoroughly with pure water. Do 

not use alcohol, ketone solvents or other alkaline cleaners. Use of a cage washer is not recommended because rapid 

heating and cooling in combination with high-pressure water jets is known to increase the likelihood of fatigue cracks. 

CONSTRUCTION: 

Our chairs come with many predrilled holes. These holes provide bolt on convenience for many of our popular 

options e.g., handles and coil support wings. Your chair may also have an optional door latch position. The position of 

the latch is determined by the options you have chosen. For example, if you ordered coil support wings, the latch will be 

in the lower position so that the metal latch is not inside the coil field. You may move your latch or add a second 

without affecting your warranty. The brass secondary restraint chain at the top of the hinged side of the chair is an 

AALAC safety requirement. All sharp edges that may come into contact with the animal and researcher have been 

rounded for comfort and safety. 

All of our chair parts are individually replaceable. If they should become damaged or if you require changes to 

accommodate your investigations, the part you wish to change can be removed and/or replaced. Individual chair parts, 

both standard and modified, are available. Please feel free to call or email us for any information on the parts you need. 

Our chair department manager and sales staff is always ready to help. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Vision Studies Primate Chair 

This chair has many options that are included in the basic price. The 

main feature of the Vision Model Chair (1-CCP) is a touch bar mounted on 

the front of the chair. When connected to the Touch Sensor Module (4-TPS- 

E1) with banana plugs and touched by the monkey, it completes a circuit that 

passes through the perch and the Module, sending a 5-volt TTL signal to a 

personal computer or touch sensor that can trigger a reward from any of our 

reward systems. The Touch Sensor Module and reward systems are sold 

separately 

The Standard Perch Assembly is included in this chair (1-CC-7). 

Assembled with machined stainless steel rods, mounted horizontally in an 

aluminum frame, it is a comfortable surface for the monkey to sit or crouch. 

The door and the waste tray (a standard feature of all of our chairs) 

open in the rear. The door is mounted with stainless steel spring piano type 

hinges and held with a stainless steel spring latch that can accommodate an 

optional locking mechanism. A drip lip is incorporated into the design just 

above the Waste Tray to prevent leakage to the outside of the chair. 

The corners of the chair front are reinforced with custom extruded 

aluminum. The chair side panels are pre-drilled for optional waist restraint or 

external handles. The pre-drilled holes can also accommodate optional 

wings, which are designed support to either the 15-inch or the 18-inch coil 

frame. Coil Support Wings are an option available at no extra cost on this 

model. They are convenient for pushing the chair when it is mounted on a 

base. 

The neck plate system has a fixed front plate and a removable rear 

neck plate fastened in place with two knobs, which can be turned by hand or 

with an Allen wrench. All neck plate systems are designed not to choke the 

subject. 

Additional options included at no extra cost with this model are the 

Top Plate Head Positioning System (1-CC-9 and 1-CC-10), the Safety 

Restraint Chain (1-CC-14), and the Tall Base (V50). The Top Plate is 

supported by the Side Head Plates. These units are 1-inch thick 

Polycarbonate. The Top Plate has a center slot running from the front to the 

back to accommodate a head restraint unit. The Safety Restraint Chain has 

snap hook ends and is a requirement (per AAALAC standards). This chain is 

designed to restrain the monkey while loading and unloading in the event of 

an escape the subject is still attached to the chair It attaches to the collar. Collars are 

sold separately. 

An interesting variation of the Vision Model Chair is the Removable Front 

Fig. 1.1 Vision Studies Primate Chair 

with Tall Base 

Panel Model (1-CCC). On this model, a touch bar is mounted on a removable front panel. The removable panel can be replaced 

with a variety of tasking devices (e.g., the Touch Bar or a Joy Stick). In addition, this model features the Top Bar Restraint System 

(910B). With this system, side head supports allow the attachment of a top bar in one of five anterior/posterior positions. The top 

bar then allows the lateral positioning of other head restraint devices. This model is also available with a Low Trolley Base (V60). 

VISION STUDIES CHAIR OPTIONS: 

Options available for these Chair Models are outlined below (you may use these catalog numbers when ordering or 

inquiring regarding your research needs): 

1-CCC 

Removable Touch Bar Plate 

This removable panel mounts on the front of your chair. If you require a chair with this option, your chair’s catalog 

number will begin with 1-CCC, rather than 1-CCP. 

Continued next page 


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1-CC-910B 

Top Bar Head Positioning System 

This replaces the top plate system and permits forward/backward and lateral adjustments of head position. If you require 

a chair with this option, your chair’s catalog number will be (1-CCP-910 to 1-CCP-910B) or (1-CCC-910 to 1-CCC- 

910B). 

1-CCA-93S 

Audio Chair Type Head Holding Post 

This type of positioner is standard on the Audio Chair, but it is an addition to the above models. It replaces the top bar or 

the top plate systems. For this option replace the catalog number (910 or 910B) with (93S). 

1-CC-52 

Neck Plate System 

This is to be used in conjunction with a collar from Primate Products, Inc. 

1-CC-5F 

Self-Feeding Neck Plate System 

Special neck plates allow the subject to reach its mouth with its hand so as to allow for self-feeding and similar activities. 

Call for Product-# Neck Plate System with enlarged/reduced neck opening 

If you believe this to be something you require, please contact us for additional information and catalog numbers. 

1-CC-1-DBL and 

1-CC-1A-DBL 

Double Neck Plate Option 

This is an option that allows standard and large chairs to be used with smaller primates (right side: 1-CC-1-DBL) (left 

side: 1-CC-1A-DBL). 

1-CC-6C 

Removable Neck Plate 

This is a safety feature that allows for eight inches of extra clearance from the subject’s neck. (1-CC-6C) 

1-CC-5J 

Neck Plate w/ Anti-Rotation Head Blocks (Jaw Blocks) 

Dual jaw blocks on the neck plate prevent the subject from turning its head. These blocks are useful when experimental 

specifications make the use of a rigid head holding system infeasible. 

1-CC-19-4 

Waist Plate 

This is a “C”- shaped plate that is open in the rear and restricts movement, keeping the subject’s feet below its waist. 

1-CC-19-split-size # Waist Plate System (two piece) 

This feature consists of a fixed front plate and a removable rear plate. The rear plate half is applied after the monkey is 

in the chair. The rear plate half comes with a handle for easy application and removal. This waist plate system 

completely surrounds the subject’s waist, keeping the animal’s feet below its midsection. This feature is available in 

three waist diameter sizes: Small- 4” (10.16cm), Standard- 5” (12.71cm), and Large- 6” (15.25cm). 

1-CC-25 

Knee Separator 

This feature fits between the subject’s knees in order to separate them. 

1-CC-17 

Aluminum Slot Liners 

This feature consists of aluminum inserts, which are installed in the perch and neck plate slots. These liners reduce stress 

on the weaker plastic chair sides and can thereby extend the life of your chair. 

1-CC-30 

Coil Support Wings 

These are designed for the stabilization of the 15 and 18-inch coil frames (38.12cm and 45.74cm). 

1-CC-302 

Coil Support Wings, Large 

These are designed for coil frames of up to 22-inches (55.90 cm). 

1-CC-32 

Dutch Doors 


Telephone: 301-393-8615 · FAX: 301-393-8618 



These doors open to separate levels – one door to the upper level (above the waist plate) and one to the lower level 

(below the waist plate). 

1-CC-34 

Guillotine (Sliding Rear Door) 

This door opens vertically to allow the chair to be positioned directly against the cage. Included in the design is a system 

of hooks that engage the bars of the cage and prevent the chair from being pushed away. Chair height can be modified 

(upon request, during ordering) to match the cage door height. 

1-CC-71 

Seat 

This is a modified perch system that is designed to increase primate comfort in order facilitate subject cooperation during 

longer experiments. It also can be used as a booster seat, making it possible to use a standard chair with a smaller 

primate. This usually requires Extended Perch Slots (see below). 

1-V50 Standard Tall Base 

The frame is constructed of aluminum on 4 non-conductive 5” (12.70 cm) diameter-locking wheels. This base places the 

primates eye height at our standard level, between 47 and 48 inches (199.4 and 121.9 cm) from the floor level. There are 

several positioning systems available to fasten the chair in the testing area. To select the Tall Base option, add V50 to 

the end of your chair model number. Example: (1-CCC-910B-V50) Chair is pictured above. 

1-V60 Low Trolley Bases 

Low trolley bases are 6.50-inches (16.5 cm) tall and are mainly designed for transporting or use in one of our isolation 

chambers. When using in an isolation chamber some changes may be required, e.g. height will change the part number 

(see Bases and Trolley section). To select this model base add V60 to your selected chair model. Example (1-CCP-910- 

V60). When using a Low Trolley model base in conjunction with an isolation chamber, please also refer to Transport 

Trolleys section 

Call for Cat-# 

Canvas Chair Cover 

Canvas chair covers are most useful for transporting the subject though sensitive areas. They are also useful for keeping 

the chair dust free though extended storage. 

Catalog Number Chair Size/Defining Option Primates to be used with 

1-CMP-910-V50 Mini New World 

1-CMC-910-V50 

w/ removable touch bar plate 

1-CSP-910-V50 Small 3 - 6 kg 

1-CSC-910-V50 


1-CCP-910-V50 Standard 4-9 kg 

1-CCC-910-V50 


1-CLP-910-V50 Large 8-18 kg 

1-CLC-910-V50 



Telephone: 301-393-8615 · FAX: 301-393-8618 



TV Primate Chair: 

FOR TOUCH SENSITIVE TV SCREEN AND OTHER REACHING TASKS 

This is the primate chair of choice for protocols that require 

the subject to be able to perform manual tasks, such as reaching hands 

out of the chair to a touch panel television screen. A reversal of the 

front panel (1-CCT-21A) permits hand(s) to have excess to the outside 

of the chair through an opening. Additionally there is a safety barrier 

plate (1-CCT-21D) that provides protection while the front panel is 

being adjusted. Special locking pins hold the reversing panel in place 

during experiments. The front, non-removable neck plate is fixed to 

the chair, while the rear plate is adjustable from front to rear and comes 

with either two knobs (1-CC-5A) or two Allen Cap screws (1-CC-5B). 

(Please specify which of the two you prefer when ordering.) 

The subject enters and exits the chair from an air-vented, 

swinging door on the rear. The door is mounted with stainless steel 

piano type hinges and held with a stainless steel spring latch that has an 

optional locking mechanism. 

A waist plate similar to the design of the front neck plate is 

standard on the TV Primate Chair. This inhibits the monkey from 

extending its feet up and out the front of the chair. However, due to the 

adjustable aluminum and stainless steel perch, the primate is still able 

to flex and move its feet for comfort. The Waste Tray (1-CC-70) on 

the TV Chair is inserted from the rear. A restraint chain with snap 

hook ends is also included; as an AAALAC standard the purpose of 

this chain is to leash the monkey while loading and unloading to 

prevent the primate from escaping. The restraint chain is used with a 

collar that is sold separately. 

Fig. 1.2 TV Primate Chair with Tall Base 

For the purpose of holding the primate’s head the TV Chair 

comes with the choice of a Top Plate or a Top Bar. The Top Plate is 1 

inch (2.54cm) thick Polycarbonate and has a slot that runs front to back to allow adjustment of the head to a desired 

angle for viewing. Through the slot is a threaded bar that attaches to a head holding system. The Top Bar, an option to 

the Top Plate, has five available positions front to rear and allows unlimited adjustment side to side as well as posterior 

and anterior angles. This system also can operate with several different head holding devices. 

Chairs can be easily transported and elevated to a convenient working height when mounted to our Standard 

Tall Base (Optional), which is a frame constructed of aluminum on 4 non-conductive five-inch diameter lockable wheels. 

This base places the primates eye height at our standard height of between 47 and 48 inches (119.4-121.9 cm) from the 

floor level. A low trolley is also available. The low trolley is 6.50 inches (16.5cm) tall and is mainly designed for 

transporting the chair. The height of this trolley can be customized to match your Isolation chamber level or other 

equipment. This specific modification is available at no extra cost if you plan to use our Isolation Chambers. See the 

"Bases and Trolleys" and “Isolation Chamber” sections for additional details. 

TV CHAIR OPTIONS: 

1-CC-93S 

Audio Chair Type Head Holding Post 

Replaces the Top Bar or Top Plate system on other Chairs. This is usually attached to the sides of the chair instead of 

the Rear as on the Audio Chair. It can be put on the Rear above the door, but the monkey must duck under the mount to 

get into the chair. (See Audio Chair Description) (1-CC-93S) 

5-inch External Handles 

These handles are designed to make set-up and transportation of the chair easier. 

1-CC-5J 

Neck Plate w/ Anti-Rotation Head Blocks (Jaw Blocks) 

Dual jaw blocks on the neck plate prevent the subject from turning its head. These blocks are useful when experimental 


Telephone: 301-393-8615 · FAX: 301-393-8618 



specifications make the use of a rigid head holding system infeasible. 

1-CC-17 


This feature consists of aluminum inserts, which are installed in the perch and neck plate slots. These liners reduce stress 

on the weaker plastic chair sides and can thereby extend the life of your chair. 

1-CC-30 


These are designed for the stabilization of the 15 and 18-inch coil frames (38.12cm and 45.74cm). 

1-CC-302 

Coil Support Wings, Large 

These are designed for coil frames of up to 22-inches (55.90 cm). 

1-CC-32 

Dutch Doors 

These doors open to separate levels – one door to the upper level (above the waist plate) and one to the lower level 

(below the waist plate). 

1-CC-19-SP-size # Waist Plate System (two piece) 

This feature consists of a fixed front plate half and a removable rear plate half. The rear plate half is applied after the 

monkey is in the chair. The rear plate half comes with a handle for easy application and removal. This waist plate 

system completely surrounds the subject’s waist, keeping the animal’s feet below its midsection. This feature is 

available in three waist diameter sizes: Small- 4” (10.16cm), Standard- 5” (12.71cm), Large- 6” (15.25cm). 

1-CC-52 

Neck Plate System 

This is to be used in conjunction with a collar from Primate Products. 

1-CC-5F 


Special neck plates allow the subject to reach its mouth with its hand so as to allow for self-feeding and similar activities. 

Neck Plate System with enlarged/reduced neck opening 

If you believe this to be something you require, please contact us for additional information and catalog numbers. 

1-CC-34 

Guillotine (Sliding Rear Door) 

This door opens vertically to allow the chair to be positioned directly against the cage. Included in the design is a system 

of hooks that engage the bars of the cage and prevent the chair from being pushed away. Chair height can be modified 

(upon request, during ordering) to match the cage door height. 

1-CC-71 

Seat 

This is a modified perch system that is designed to increase primate comfort in order facilitate subject cooperation during 

longer experiments. It also can be used as a booster seat, making it possible to use a standard chair with a smaller 

primate. This usually requires Extended Perch Slots (see below). 

1-CCT-BAG 

Canvas Chair Cover 

Most useful for transporting the subject though sensitive areas. Also useful for keeping the chair dust free though 

extended storage. 

1-CCT-1-DBL and 1-CCT-1A-DBL 

Dual Neck Plate Positioners 

Allowing some smaller primates to fit Standard or Large Chairs. It may be necessary to use this option in conjunction 

with other options such as Extended Perch Slots and a second set of Neck Plates with a smaller opening. 

Handle Extension for Rear (Removable) Neck Plate 

Neck plate incorporates an eight-inch Handle (20.3cm) that gives clearance to protect researchers hand from injury 

caused by biting. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CCT-21JOY 

push buttons 

This optional front for the TV chairs can be used to mount one to two Joysticks or 

Catalog Number Chair Size/Defining Option Primates to be used with 

1-CMT-910B-V60 Mini New World 

1-CST-910B-V60 Small 3 - 6 kg 

1-CCT-910B-V60 Standard 4 - 9 kg 

1-CLT-910B-V60 Large 8 - 18 kg 

Note: If you are working with a heavy weight primate, especially in respect to its height, you may need to use a larger 

chair to fit your specific needs. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



MRI Primate Chair 

This chair is specially designed for use with fully conscious primates inside the MRI. The chair consists of completely 

non-metallic materials, including the head holding and positioning apparatus mounted to a cylindrical body. The 

tubular design has an outside diameter of 10 ½ inches (26 ¾ cm). Other dimensions may be available upon request. 

Horizontal MRI Chair (1-CH1050) 

Univ of Alabama 

Our Vertical MRI chair in the MRI setup of 

When ordering, please specify the bore dimensions and other specifications of your MRI. 

This chair is now available in two designs, a Horizontal and a Vertical model. A training chair is also available as an 

option. 

For more information about this new product, please refer to the Tech Brief Section (Tech Brief XIII-1.4). 

Our engineering staff is here to assist you regarding any specific customizing that would assist you in your research. 

For more details on this new product, feel free to contact Crist Instrument Co., Inc. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CH1050 

Horizontal MRI Chair 

1-CV1150-S 

Vertical MRI Chair 

1-CV1200 

Large Vertical MRI Chair 

Note: We can custom design your MRI chair to accommodate the size of your primate subject. 

Figure 1.3 Vertical MRI Chair (a) 

Vertical MRI Chair (b) 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Audio Primate Chair 

This chair features a rear post head positioning system, which leaves 

approximately 350 degrees of the audio range unobstructed on the horizontal 

plane. The vertical planes of audio range are unobstructed to 30° below the 

horizon on the sides and 40° below the horizon in the front due to the design of 

chair body’s main interface. We feel this provides the widest possible audio 

range for audio studies and still provides adequate stability for the head and 

comfortable accommodations for the primate. 

The head holding system consists of a two-inch square aluminum post 

mounted vertically in the center of the chair’s back that clamps a horizontal bar 

that extends forward over the primates head. Connected to this horizontal bar is 

a shorter, vertical rod that extends downward to the primate’s head and attaches 

to a head positioning system. This rod is adaptable to fit several different head 

restraint systems. 

This chair is a front-loading chair with a swinging door. The stainless 

steel spring latch of the swinging door is designed to accommodate a locking 

mechanism (e.g. pad lock). 

The neck restraint system is designed with both a rear and front plate. 

The rear plate is fixed onto the main body and is usually not removed. The front 

plate is attached by hand knobs and is guided by dual slots, which allow the 

plate to be removed during loading and unloading of the primate. 

The standard perch assembly is included with this chair (1-CC-7). 

Assembled with machined stainless steel rods, mounted horizontally in an 

aluminum frame, it is a comfortable surface for the monkey to sit or crouch. 

To accommodate varying heights of the primate subjects, the perch assembly 

is vertically adjustable up to eight inches. Additional seat options and 

extended perch slots are available for added comfort and range of adjustment. 

(See options list). 

The rear panel of the chair is ventilated for the subject’s comfort. The side panels of the chair are pre-drilled for 

optional external handles, waist restraint plate, and/or 18” (45.72cm) coil supports (wings). Our 18” (45.72cm) coil will 

fit this chair with the optional wings. (This chair is not, however, designed to accommodate our 15” or 38.10cm coil). 

Fig. 1.4 

Audio Primate Chair 

The waste tray on the Audio Chair is inserted from the front. 

The Audio Chair can be easily transported and elevated to a 

convenient working height when mounted to our standard tall base 

(optional), which is constructed of an aluminum frame on four nonconductive, 

5” (12.7cm) diameter lockable wheels. This base places the primates at a standard height of 47” to 48” 

(119.4cm - 121.9 cm) from the floor. 

A low trolley is also available. The low trolley, mainly designed for transporting, stands 6.5” (16.5cm) from the 

floor. The height of this trolley can be customized to match your isolation chamber level or other equipment. This 

specific modification is available at no extra cost if you plan to use our Isolation Chambers. See the "Bases and 

Trolleys" and the “Isolation Chamber” sections for additional details. 

AUDIO CHAIR OPTIONS 

1-CC-30 


18 inch coil mounting (Note: 15-inch coil is not compatible with the audio chair) 


5-inch (12.70cm) External Handles 

External handles allow for easy handling of the chair during set-up or transporting. 

1-CC-5SF 


This special neck plate allows the subject to reach its head and mouth, which may be necessary for tasks such as selffeeding. 


Telephone: 301-393-8615 · FAX: 301-393-8618 




Neck Plate System with an enlarged or reduced neck hole opening 

1-CC-5JC 

Anti-Rotation Head Blocks (jaw blocks) 

These dual blocks on the neck plate prevent the subject from turning its head. This is most commonly employed when a 

rigid head holding system is not applicable due to experimental needs. 

1-CC-17 


These aluminum inserts in the perch and neck plate slots reduce stress concentration on the weaker plastic sides, 

extending the chair’s life. 

1-CC-SP-19 

Waist Plate System (two piece) 

The two-piece, waist plate system is similar to neck plate systems in that the rear plate is fixed and the removable front 

plate is inserted after loading the primate. 

1-CC-71 

Seat 

This modified perch system enhances primate comfort, extending the animals cooperation level for extended 

experiments. It also can be used as a booster to allow some smaller primates to fit a standard chair. (This option usually 

requires extended perch slots). 

1-CA-34 

Guillotine (Sliding) Front Door 

Front Door that opens vertically which allows the chair to be positioned directly against a cage. Included in the design is a system of 

hooks that engage the bars of the cage, holding the chair stationary. (Chair height should be accommodated to match the cage door 

height.) 

1-CCA-1-DBL: Right Side 

1-CCA-1A-DBL: Left Side Dual Neck Plate Positioners 

This is another option for allowing some smaller primates to fit standard or large chairs. It is often used in conjunction with other 

options such as extended perch slots and/or a second set of neck plates with a smaller opening. 

Catalog Number Chair Size/Defining Option Primate to be used with 

1-CCA-V50 Standard Chair 4 - 9 kg 

1-CLA-V50 Large Chair 8-18 kg 

Note: If you are working with a heavy weight primate, especially in respect to its height, you may need to use a larger 

chair to fit your specific needs. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Salzman/ Patton Front Door Primate Chair 

Fig. 1.5 Salzman/Patton Front Door Primate Chair 

Developed in collaboration with Dan Salzman and 

Joe Patton of Columbia University, N.Y. 

This modified chair was developed for the purpose of attaching sensors on the palms of the primate while the 

hands rest outside the front of the chair. To better the ergonomics of the chair, several adjustments were made. The rear 

waist plate was designed to adjust vertically rather than horizontally, allowing the vertical distance from the elbows to 

the shoulders to be adjusted. The subject’s elbows fit into contoured blocks, which are positioned on the waist plate and 

horizontally adjustable. The forearms are secured with vertically adjustable, cushioned rods, which are formed to 

comfortably hold the arms in place. The front waist plate is fixed to the inside of the front swinging door. The door has 

holes for the hands, and on the outside of the door is a hand rest that is also vertically adjustable. The wrists are 

protected with Velcro straps and locked with guillotine plates. All adjustments are accessible from the outside of the 

chair and are designed for maximum comfort. The design for this chair is based on the Standard Audio Chair. For more 

information, refer to the Audio Chair description (previous page). 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Open Primate Chair 

The upper front and sides of this chair are wide open to permit 

the complete range of motion for the subject’s arms. This is 

recommended for studies in which the subject is involved in studies 

requiring the performance of manipulative tasks. 

The Open Chair does not include a head restraint as a standard 

feature, however the head post that comes standard on the Audio Chair 

is compatible with the inclusion of some additional supports. If you 

prefer this option, please specify when placing your order. 

This chair uses a two-plate waist restraint system to keep the 

primate's feet below the waistline. The subject is loaded and unloaded 

from the front through a swinging door, which can be securely locked 

once the primate is in place. The neck plate system on this chair is 

designed to only restrain the neck and has little interference with the 

range of motion of the arms. This allows the subject to reach its mouth. 

If the subject will be handling objects that could possibly be hazardous 

if swallowed an optional neck plate is available to prevent this (see 

options list). The standard perch assembly is used on this chair. It is 

assembled with machined stainless steel rods horizontally mounted in 

an aluminum frame and provides a comfortable surface for the monkey 

to sit or crouch. It has an adjustable vertical range to adapt to primates 

of various heights. There are optional seats and extended perch slots 

available for added comfort and range of adjustment (see options list). 

The neck and waist plates have removable handles for safe installation. Fig. 1.6 Open Primate Chair 

The waste tray is accessible from the front and is located below the door. 

A drip lid was incorporated into the design just above the tray to prevent any leakage of animal waste products. 

Like most chairs, the Open Chair can be easily transported and elevated to a convenient working height when it 

is mounted on our standard tall base (optional), which is a frame constructed of aluminum on 4 non-conductive 5inch 

diameter lockable wheels. This base places the primates eye height at our standard height of between 47 and 48 inches 

(119.4-121.9 cm) from the floor level. A low base trolley is also available, which stands 6.50 inches (16.5cm) from the 

floor and is mainly designed for transporting the chair. The height of this trolley can be customized to accommodate the 

height of your isolation chamber or other equipment. This specific modification is available at no extra cost if you plan 

to use our isolation chambers. See the "Bases and Trolleys" and “Isolation Chamber” sections for additional details. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



OPEN CHAIR OPTIONS 

1-CA-93 

Audio Chair Post Head Holding System 

See the beginning of the Audio Chair Description for details. 


5-inch (12.70cm) External Handles 

For handling the chair during set-up or transporting 

1-CC-6 

Non-Self-Feeding Neck Plate (Standard Neck Plate) 

This neck plate prevents the primate from self-feeding, by not allowing the primate to reach its hand(s) to its mouth 

1-CC-6SF 

Self-Feeding Neck Plate 

This neck plate allows the primate to self-feed by permitting the primate to reach its hand(s) to its mouth. 

1-CC-5JC 

Anti-Rotation Head Blocks (jaw blocks) 

These dual blocks mounted on the neck plate prevent the subject from turning its head. This is most commonly 

employed when a rigid head holding system is not applicable due to experimental needs. 

1-CC-17 


These aluminum inserts in the perch and neck plate slots reduce stress concentration on the weaker plastic sides, 

extending the chair’s life. 


Neck Plate System with an enlarged or reduced neck hole opening 

1-CC-71 

Seat 

This modified perch system enhances primate comfort, extending the animals cooperation level for extended 

experiments. It also can be used as a booster to allow some smaller primates to fit a standard chair. (When adding the 

seat option, extended perch slots are usually required). 

1-CC-6C 

Removable Neck Plate with Extended Handle 

This neck plate includes an eight-inch handle (20.3cm), providing a safe distance between the investigator and the 

subject. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CCO-SNY 

Snyder Open Primate Chair 

(Developed in collaboration with Larry Snyder from Washington University of St. Louis, MO.) 

This is a variation of the Standard Open Chair with the addition of a removable cover that completely encloses 

the chair. The purpose of this is to allow a large range of arm movement when the cover is removed, but also allow the 

option of having a safe means of transporting and training the subject when the cover is in place. 

Snyder Open Primate Chair (1-CCO-SNY) 

Snyder Chair fully enclosed w/standard neck 

plate 

Like with the Standard Open Chair, the neck plate allows the primate subject to reach its mouth. A neck plate 

designed to prevent the subject from reaching its mouth is optional (see options list). This chair has a two-plate waist 

restraint system that is horizontally adjustable. The waist plate keeps the primates feet below the waist and restricts 

movement of the midsection. The neck and waist plates have removable handles for safe loading and unloading of the 

subject. 

This chair comes with the standard perch assembly. The standard perch assembly consists of machined 

stainless steel rods, mounted horizontally in an aluminum frame and provides a comfortable surface for the monkey to sit 

or crouch. The perch assembly is adjustable to accommodate various heights of primate subjects. 

A front-swinging door, equipped with a locking mechanism, is standard with this model. However, if you 

prefer a rear-swinging door, please specify the “Rear Door Model” when placing your order. For direct cage loading, we 

also offer the guillotine door option with this chair. 

The Open Chair does not include a head restraint as a standard feature, however the head post that comes 

standard on the Audio Chair is compatible along with the inclusion of some additional supports. If you prefer this 

option, please specify when placing your order. (Note: Audio Chair head post is only compatible with the front door 

model.) 

Like most chairs, the Open Chair can be easily transported and elevated to a convenient working height when 

mounted to our Standard Tall Base (Optional), which is a frame constructed of aluminum on 4 non-conductive five-inch 

diameter lockable wheels. This base places the primates eye height at our standard of between 47 and 48 inches (119.4- 

121.9 cm) from the floor level. A low trolley standing 6.50 inches (16.5cm) mainly designed for transporting is also 

available. The height of this trolley can be customized to match your Isolation Chamber level or other equipment. This 


Telephone: 301-393-8615 · FAX: 301-393-8618 



specific modification is available at no extra cost if you plan to use our Isolation Chambers. See the "Bases and 

Trolleys" section and the Isolation Chamber section for additional details. 

SNYDER CHAIR OPTIONS 

1) Guillotine (sliding) Front Door -- Front Door that replaces swinging door and opens vertically allowing the 

chair to be positioned directly against a cage. Included in the design is a system of hooks that engage the bars 

of the cage and prevent the chair from being pushed away. (When ordering, please specify the height of your 

cage door so that your chair can be designed accordingly). 

2) Neck Plate and Waist Plate Positioners – Available to allow larger or smaller subjects to be properly restrained 

in the standard sized chair. 

3) Rear Door Model of Snyder Chair – Swinging or guillotine rear door with solid front. 

4) Audio Chair Post Head Holding System -- See the beginning of the Audio Chair description for details. 

5) Seat - Modified perch system that enhances the subject’s comfort extending the primate’s cooperation level for 

extended experiments. It also can be used as a booster to allow some smaller primates to fit a standard chair. 

(Usually requires Extended Perch Slots) 

6) Coil Support Wings - For use with our 18 inch coil or 15 inch coil 

7) 5-inch External Handles - For handling the chair during set-up and transporting. 

1-CLQ-93-V50 

1-CQA-V50 

1-CQ-910-V50 

Large Square top chair with Front Door 

Standard Square top chair with Front Door 

Standard Square top chair With Back Door 

These chairs are similar to the Standard Vision Chairs except 

the top neck plates are parallel to the floor instead of slanting 

forward 22.5 degrees. 

Pictured below are two different head holding systems 

available one the original top plate or bar system and the 

Audio post head holding system, both are easily removable. 

There is also an optional chest plate to keep the monkey 

from rotating his body in the chair. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CCD-910-V50 

IndistructaMax 

The Metal Braced Chair is 

similar to the Standard vision 

chair in size and function. 

· Added bracing that 

increases strength 

· Easily replaceable 

Polycarbonate 

panels 

· Animal Comfort 

· Safety for the 

Technician 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CCF-01 

ConformaMax 

Chair System 

For versatility and durability, 

it’s the one chair system worthy 

of a standing ovation 

Stainless steel and anodized aluminum 

construction means hundreds of 

configurations 

- with zero corrosion - over a longer service 

life. 

Adjustment is smooth, easy and virtually 

impervious to damage from chemical 

cleaners 

thanks to our UHMW polyethylene slide 

bearings. 

Waste management and removal 

is as easy as sliding out the tray. 

Our 5” wheels offers greater mobility and 

the two-way locks ensure secure 

positioning. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CLPBF 

Push Button Chair 

This chair designed for behavioral or visual motor skill studies. The chair is available with two or 

three buttons which can be wired in parallel or series. 

Options Available are: 

1. Slide button Covers 

2. Arm Blockers (left and Right) 

3. and many of the Standard Chair options 

This chair is only available in a back door model. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CC-10BF Top Bar, TRAPEZE STYLE: 

This new system incorporates the new top bar (1-CC-10BF). This system gives you the ultimate in versatility. When 

used with the Swivel Head Holder, The Head Holder on the Head can be mounted virtually anywhere on the head. The 

trapeze type head positioners side supports are mounted on the chair side with a pivot allowing the top bar to be 

positioned anywhere front to back. There is a locking pin to lock the positioner in a vertical position. The swivel Head 

holder can be positioned anywhere left to right. This will give you the freedom to position the head in any direction. The 

side plates and top bar are made from Aluminum but can be made from plastics for FMRI and CAT scan Applications. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Chair Parts Options 

All chairs are available with the following options and/or as replacement 

spare parts. When you order options, be sure to specify which model and 

size chair you will be using; e.g. CCP, CSP, CCT. Options may be 

ordered either along with your chair or at a later time as your 

investigations proceed. 

DESIGN A CHAIR TO MEET YOUR OWN 

PROTOCOLS 

All chairs can be custom designed to meet your specific research 

requirements. Feel free to contact us to discuss any comments, questions, or suggestions. We will 

work with you personally to help accommodate your particular needs. 

CHAIR SIDES 

Part Number 

1-CC-1 

1-CC-1A 

1-CC-1-17 

1-CC-1A-17 

1-CC-1-34 

1-CC-1A-34 

1-CC-93S 

1-CC-1A-93S 

1-CC-1-D 

1-CC-1-DBL 

1-CC-1A-DBL 

1-CC-1-DBL-93S 

1-CC-1A-DBL-93S 

1-CCA-1 

1-CCA-1A 

1-CCA-1-34 

1-CCA-1A-34 

1-CCA-1-93S 

1-CCA-1A-93S 

1-CCA-1-76AR 

1-CCA-1A-76AR 

1-CCAW-1AB 

1-CCAW-1T 

1-CCAW-1AT 

1-CCAW-1AT-A 

1-CCAW-1AT-B 

1-CCAW-1TW 

1-CCA-1-DBL 

1-CCA-1A-DBL 

1-CCA-1-DBL-93S 

1-CCA-1A-DBL-93S 

1-SNYCH-A-1 

1-SNYCH-A-1A 

1-SNYCH-F1 

1-SNYCH-F1A 

1-SNYCH-1 

1-SNYCH-1A 

1-CCO-1 

Part Number 

1-CCO-1A 

1-CCO-1-OLD 

1-CCO-1A-OLD 

1-CCT-1 

Description 

Standard chair right side 

Standard chair left side 

Standard chair right side for chairs with slot liners 

Standard chair left side for chairs with slot liners 

Standard chair right side for chairs with Guillotine door 

Standard chair left side for chairs with Guillotine door 

Standard chair right side for chairs wit audio post on the side 

Standard chair Left side for chairs with Audio Post on the side 

Standard chair right side for Dutch Doors (left side is 1-CC-1A) 

Standard chair right side for chairs with double neck plate slots 

Standard chair left side for chairs with double neck plate slots 

Standard chair right side with double neck plate slots and audio post on the side 

Standard chair left side with double neck plate slots and audio post on the side 

Standard Audio style chair right side 

Standard Audio style chair left sides 

Standard Audio style chair with Guillotine door 

Standard Audio style chair left sides with guillotine door 

Standard Audio style chair Right Side with Audio post on the Side 

Standard Audio style chair left Side with Audio post on the Side 

Standard Audio style chair right sides for chairs with arm restraint 

Standard Audio style chair left sides for chairs with arm restraint 

Standard Audio style chair sides for wire mesh chairs (Left and Right) 

Standard Audio style chair right sides for wire mesh chairs 

Standard Audio style chair left sides for wire mesh chairs 

Wire edge covers for top side (two needed per chair) 

Wire edge cover for bottom side (two needed per chair) 

Mesh for wire mesh audio chair (two Per Chair) 

Standard Audio style chair right side for chairs with double neck plate slots 

Standard Audio Style chair left side for chairs with double neck plate slots 

Standard Audio Chair right side with double neck plate slots and Audio post on the side 

Standard Audio Chair left side with double neck plate slots and Audio post on the side 

Right side Snyder style chair with audio post, wings and non self feeding neck plate 

Left Side Snyder style chair with audio post, wings and non self feeding neck plate 

Special audio chair with foot port for Dr. Snyder right side 

Special audio chair with foot port for Dr. Snyder left side 

Special Snyder chair right side 

Special Snyder chair left side 

Standard Open front chair right side 

Description 

Standard Open front chair left side 

Open Front Chair right side smaller than Standard (replacement parts only) 

Open Front Chair left side smaller than Standard (replacement parts only) 

Standard TV style Chair right side 


Telephone: 301-393-8615 · FAX: 301-393-8618 



1-CCT-1A 

1-CCT-1-17 

1-CCT-1A-17 

1-CCT-1-34 

1-CCT-1A-34 

1-CCT-1-BF 

1-CCT-1A-BF 

1-CCT-1-93 

1-CCT-1A-93 

1-CCT-1-93S 

1-CCT-1A-93S 

1-CCT-1-SHORT 

1-CCT-1A-SHORT 

1-CCT-1-D 

1-CCT-1-D-DBL-S 

1-CCT-1A-D-DBL-S 

1-CL-1 

1-CL-1A 

1-CL-1-17 

1-CL-1A-17 

1-CL-1-1753 

1-CL-1A-1753 

1-CL-1-1718 

1-CL-1A-1718 

1-CL-1-34 

1-CL-1A-34 

1-CL-1-D 

1-CLA-1 

1-CLA-1A 

1-CLA-1-34 

1-CLA-1A-34 

1-CLA-1-76AR 

1-CLA-1A-76AR 

1-CLT-1 

1-CLT-1A 

1-CLT-1-D 

1-CLT-1-D-DBL-S 

1-CLT-1A-D-DBL-S 

1-CLT-1-17 

1-CLT-1A-17 

1-CLT-1-18 

1-CLT-1A-18 

1-CLO-1 

1-CLO-1A 

1-SHALL-2 

1-CS-1 

1-CS-1A 

1-CS-1A-34 

1-SNY3-1 

1-SNY3-1A 

1-CSTBM-1 

1-CSTBM-1A 

Standard TV style Chair left side 

Standard TV style Chair right side for chairs with slot liners 

Standard TV style Chair left side for chairs with slot liners 

Standard TV style Chair right side for chairs with guillotine door 

Standard TV style Chair left side for chairs with guillotine door 

Standard TV Style Chair right side for trapeze head holder and Chuck Chase coil 

Standard TV Style Chair left side for trapeze head holder and Chuck Chase coil 

Standard TV chair right side with audio attachment 

Standard TV chair left side with audio attachment 

Standard TV chair with Audio Post on the side 

Standard TV chair with Audio post on the side 

TV Chair short right side 

TV Chair short left side 

Standard TV chair with Dutch door right side (Left side is same as 1-CCT-1A) 

Std TV chair with Dutch door and double neck plate right side (This side has 2 pc. Waist plate option) 

Std TV chair with Dutch door and double neck plate left side (This side has 2 pc. Waist plate option) 

Large chair right side 

Large chair left side 

Large chair right side for chairs with slot liners 

Large chair left side for chairs with slot liners 

Large Chair Right Side for Chairs with Slot liners and Primate Products Neck Plate 

Large Chair Left Side For Chairs With Slot Liners and Primate Products Neck Plate 

Large chair right side with extended slots and slot liners 

Large chair left side with extended slots and slot liners 

Large chair right Side for chairs with Guillotine door 

Large chair left side for chairs with Guillotine door 

Large chair with Dutch doors right side 

Large chair right sides for Audio style chairs 

Large chair left sides for Audio style chairs 

Large chair right sides for Audio style chairs with guillotine door 

Large chair left sides for Audio style chairs with guillotine door 

Large chair right sides for Audio style chairs with arm restraint 

Large chair left sides for Audio style chairs with arm restraint 

Large Chair right side for TV style chairs 

Large Chair left side for TV style chairs 

Large TV chair with Dutch door right side 

Large TV chair for Dutch door and double neck plate right side (with two piece waist plate option) 

Large TV chair for Dutch door and double neck plate left side (with two piece waist plate) 

Large TV style Chair right side for chairs with slot liners 

Large TV style Chair left side for chairs with slot liners 

Large TV Chair right sides with extended slots 

Large TV Chair left sides with extended slots 

Large Open front chair right side 

Large Open front chair left side 

Chair side for Schall chair 

Small Chair right side 

Small Chair left side 

Small Chair for guillotine rear door left side 

Small Tall Chair right side 

Small Tall Chair left side 

Right side Murray chair 

Left side for Murray Chair 


Telephone: 301-393-8615 · FAX: 301-393-8618 



CHAIR FRONTS 

1-CCA-2 

1-CCA-28-76HR 

1- Front Door for Wire 

CCAW-2 Mesh Audio Chair 

Front Door for Audio Chair 

Salzman type reach front 

1-CCAW- Wire Mesh for Front Door Wire Mesh Audio Chair 

2-W 

1-CCAW- Front edge of right and left side of wire mesh audio chair 

2-E 

1-CCT-21A Arm Barrier for TV Chair (reversible for left & right hand extensions) 

1-CCT- Front Slide Brackets for TV Style Chair 

21B-1 

1-CCT- Front Slide Bracket for TV style Chairs 

21B-2 

1-CCT-21C Fixed Lower Front Panel for TV Chairs 

1-CCT-21D Safety Barrier for TV Chair 

1-CCT- Fixed Front Panel for Short TV Chair 

21CS 

Arm Barrier for Schultz TV Chair (reduces allowed out reach space) 

1-CCT- Joy Stick Front Panel 

21JOY-1 

1-CCT- Joy Stick Box Side Plates (two Required) 

21JOY-2 

1-CCT- Top of Compartment For Joy Stick 

21JOY-3 

1-CCT- Compartment Back for Joy Stick Cover 

21JOY-4 

1-CCT- 

21JOY-5 

1-CCO-2-A Front Door Spacer for Open Chair 

Fixed front panel for Snyder chair 

Fixed Front Panel for Snyder type Small Tall Chair 

1-CS-2A-1 

Removable Touch Panel for Small Chairs 

1-CS-2A-2 

Bracket for removable touch panel for Small Chairs 

Fixed Front Panel for Small Chair (non removable touch sensor handle for CSP Chairs) 

1-CSTBM-21A Arm barrier for Murray Chair 

1-CSTBM-21B Front slide Bracket for Murray Chair 

1-CSTBM-21C Front panel for Murray chair 

1-CSTBM-21D Safety panel for Murray Chair 

Fixed Front Panel for Large Chairs 

Fixed Front for Large Chairs with Removable Touch Sensor 

1-CCT- 

21 

TV Chair Front 

Assembly 

1-CC-21A-M1SCHULTZ 

1-CCT- Joy Stick Attachment 

21JOY for TV style Chairs 

1-CCO-2 Front door for Open 

chair 

1-SNYCH-2C 

1-SNY3-2W 

1-CS-2A Front panel for Small 

Chair with removable 

touch bar 

1-CS-2 

1-CSTBM- Murray Small Chair 

21 

Assembly 

1-CL-2 

1-CL-2A 

Part Number Component Description 

1-CC-2 

Standard chair front 

1-CC-2-DBL 

Standard Chair Front for Chairs with Double Neck Plate Slots 

1-CC-25 Knee Separator Front 1-CC-25A Fixed front panel for standard chairs with knee separator 

Panel Assembly 

1-CC-25C- Angle plates for knee plate 

1 

1-CC-25C- Angle plates for knee plate 

2 

1-CC-25-D KNEE SEPARATOR PANEL 

1-CC-25B- Left side Angle Plates for Knee Separator for Prichard’s chair only 

L 

1-CC-25B- Right side Angle Plates for Knee Separator For Prichard’s chair only 

R 

1-CC-2A Chair front with 

1-CC-2A-1 Removable front panel 

removable touch sensor 1-CC-2A-2 Removable Front panel bracket for standard chairs 

assembly 

1-CC-2A-3 Chair Front for Removable Touch Sensor (panel) 

1-CCW-2 

Fixed front for standard chairs with out touch sensor 

1-SCHALL-5 

Custom chair for Vanderbilt 

1-DDC-2 Custom Front Panel for 1-DDC-2A Custom front upper panel for NIH 

Desimon Chair 

1-DDC-2B Custom front lower panel for NIH 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Part Number Component Description 

1-CLW-2 

Fixed Front Panel for Large Chairs (for chairs with no touch sensor) 

1-CLT-21 Large TV Chair 1-CLT-21A Arm barrier for large TV chairs 

Front 

1-CLT-21B Aluminum slide brackets for large TV chairs 

1-CLT-21C Fixed front panel for large TV chairs 

1-CLT-21D Safety Barrier for large TV front chairs 

1-CLT-21AF TV Chair Front 1-CLT-21AF Arm barrier for large TV chairs with foot port option 

with Foot Port 1-CLT-21CF Fixed front panel for large TV chairs with foot port option 

Option 

1-CLT-21AFL Foot port barrier for large chairs with foot port option 

1-CLT-21BF Foot Port slides for large TV Chairs with foot Port Option 

1-CM-21A Front panel for 1-CM-2A-1 

Removable touch bar panel mini chair 

removable front 1-CM-2A-2 

Bracket for removable touch bar mini chair 

mini chair 1-CM-2A-3 

Bracket for removable touch bar panel 

1-CM-2 

Fixed front panel 1-CM-2A1 

Removable touch panel for mini chair 

for mini chairs 1-CM-2A2 

Bracket for removable touch bar panel for mini chairs 

ACCESS: 

The rear door (or front door- depending on model) opens fully. The rear neck plate is easily removable. Using the Crist 

Instrument Company Monkey Pole (2-HMP-02) and chain type collar (2-HCM), your subject is easily maneuvered from 

his cage to the chair and back again. 

CHAIR BACKS 

Part Number 

1-CC-3 

1-CC-3-DBL 

1-CC-32A-32B 

Standard Chair 

Dutch Door Assembly for 

Description 

Rear door for standard type chair 

Rear Door For Standard chairs with Double Neck Plate Slots 

1-CC-32U 

Upper Dutch door for 

Standard chair 

1-CC-32L 

Lower rear door for 

standard chair 

1-CC-34 

Guillotine door for standard chairs 

1-CC-39 Tilt Brace ASSEMBLY 1-CC-39L Lower tilt brace 

1-CCA-3 

1-CCA-3-DBL 

1-CCA-34 

1-CCAW-31 

audio chair 

Fixed rear panel for wire mesh 

1-CC-39U 

1-CC-39B 

Upper tilt brace 

Tilt brace pivot 

Fixed rear panel for audio chair 

Back Panel for audio chair with double neck plates 

Guillotine door for audio chair 

1-CCAW-31-A 

Top wire edge cover for 

wire mesh audio chair 

1-CCAW-31-B 

1-CCAW-31W 

Wire Edge Cover for Rear 

Plate 

Wire mesh for rear panel 

1-CCT-3 

1-CCT-3-SHORT 

1-CCT-32U 

1-CCT-32L 

1-CCT-34 

1-CCT-34-M1SCHULTZ 

1-CCT-34-LT 

1-CCT-3-93 

1-CCT-32U-DBL 

1-CCT-32L-DBL 

1-CCO-3 

Rear door for TV chair 

Rear door for short TV chair 

Upper Dutch door for TV chair 

Lower Dutch door for TV chair 

Guillotine door for TV chair 

Modified Guillotine Door for Schultz TV Chair 

Locking Tab for Guillotine Door (use with 1-CCT-34-M1Schultz) 

BACK for TV chair with audio post 

Upper Dutch door for TV chair (standard size Harvard chair) 

Lower Dutch door for TV chair (standard size Harvard chair) 

Back panel for open chair 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Part Number 

1-SNYCH-34A 

1-SNYCH-3 

1-SNYCH-31-OLD 

1-SNYCH-31 

1-SNYCH-31-DBL 

1-SNYCH-34 

1-SNYCH-34A 

1-SNYCH-34B 

1-SNY3-3 

1-CS-3 

1-CS-34 

1-CSTBM-3 

1-CL-3 

1-CL-32U 

1-CL-32L 

1-CL-34 

1-CLT-32U 

1-CLT-32U-DBL 

1-CM-3 

Description 

Guillotine door for Snyder special chair 

Rear Door for Snyder chair 

Rear panel for audio type Snyder chairs 

Fixed rear panel for Snyder type Chairs 

Fixed rear panel for Snyder type Chairs with Double Neck Plates 

Guillotine door for Snyder type chairs 

Guillotine door Short for Snyder type chairs 

Extra short guillotine for Snyder type chair 

Rear door for small tall chair 

Rear door for Small Chair 

Guillotine door for Small Chair 

Rear door for Murray chair 

Rear door for large chair 

Upper Dutch door for large chairs 

Lower Dutch door for large chairs 

Guillotine door for large chairs 

Upper Dutch door for large TV chairs 

Upper Dutch door for large TV chair (Harvard) 

Rear door for mini chair 

NECK PLATES: 

These neck plates are designed to 

accommodate a wide range of neck sizes and positions without 

chafing when properly adjusted. Locking screws are positioned to prevent accidental choking when 

in use. This system also retains the subject in the chairs. The Front Neck Plate comes with either 

knobs or Allen cap screws. Your choice is important. 

Part Number / Description Components Description 

1-CCA-5 / Fixed Neck plate for audio chair 

1-CCA-53 / Fixed Neck Plate for Audio Chairs with Primate 

Products Collar option 

1-CCA-53B Main Neck Plate for audio Chairs with 

Primate Products Neck Plate 

1-CCA-53C- 

R 

Upper right Clamping Plate for Audio 

Chairs with Primate Products Neck Plate 

1-CCA-53C- 

L 

Upper Left Clamping Plate for Audio 

Chairs with Primate Products Neck Plate 

1-CCA-53D Lower Clamping Plate for Audio Chairs 

with Primate Products Neck Plate 

1-CCA-53E Chase Plate for Audio Chairs with 


1-CCA-53F Main Flanges for Audio Chairs with 


1-CC-5A Fixed Neck plate for standard chair 

1-CC-5F Fixed self feed Neck plate for standard chair 

1-CC-5FG Fixed Self Feed Neck Plate for standard with Guillotine door 

1-CC-5FG-M1-SCHULTZ Fixed Self Feed Neck Plate Modified for Schultz 

1-CC-5H Fixed Neck plate for standard chair small neck hole for cebis monks 

1-CC-5J Fixed Neck plate assembly drawing for standard 1-CC-5JA Removable neck plate for standard chair 

chair with jaw blocks 

with Jaw Blocks 

1-CC-5JB Adjustable slide for jaw block style neck 

plate (2 required) 

1-CC-5JC-L Jaw Block, Left side for standard chair 

1-CC-5JC-R Jaw Block, Right side for standard chair 


Telephone: 301-393-8615 · FAX: 301-393-8618 




1-CC-5K Fixed Neck plate for standard chair with guillotine door (shorter open end by 2.5 inches) 

1-CC-5L Fixed Neck plate for standard chair neck plate is longer on the closed end 

1-CC-53 Neck plate for Primate 

1-CC-53B Main Neck Plate 

Products 4” Collar Standard 

1-CC-53C Upper flanges (two Per Neck Plate) 

assembly drawing All other sizes 

1-CC-53D Lower Flanges (two Per Neck Plate) 

are available 

1-CC-53E Chase Plate 

1-CC-53F Main Flanges (two Per Neck Plate) 

1-CC-52 Neck Plate for Primate Products Collar (short 1-CC-52B Main Neck Plate 

Version) for Guillotine Door assembly drawing 

1-CC-52C-L Clamping Plate Left Side 

1-CC-52C-R Clamping Plate Right side 

1-CC-52D Lower Clamping Plate (two Required per 

chair) 

1-CC-52F Main Flange 

1-CCO-5H3P Special Fixed Neck plate for open chair (also fits the audio chair self feed style Aluminum) For 

R. Tuner 

1-CCO-5SF Fixed Neck plate for open chair (also fits the audio chair self feed style) 

1-CCO-53 Neck plate for open chair w/ Primate Products 1-CCO-53A Special neck plate for open chairs for use 

collar 

with Primate Product neck plates 

1-CCO-53C Upper retainer for Primate Products neck 

plate 

1-CCO-53D Lower retainer for Primate Products 

Neck Plate 

1-CCO-53E Retainer plate for Primate Products neck 

plate 

1-CCT-5 Fixed neck plate for TV chair 

1-CCT-5SC Fixed Neck plate for TV chairs with dual neck plates 

1-CCT-5F Fixed Neck plate for self feed neck plate for TV chair 

1-CL-5 Fixed Neck plate for Large Chair 

1-CL-5D Fixed Neck plate for large chair with small neck plate opening 

1-CL-5EC-1.75 Fixed Neck plate for large chair closed end longer by 1.75” 

1-CL-5EC-2 Fixed Neck plate for large chair closed end longer by 2” 

1-CLT-5SC Fixed Neck plate for large TV chair with Dual neck plates 

1-CS-5 Fixed Neck plate for Small Chairs 

1-CS-53 Fixed Neck plate for Small Chair for Primate 1-CS-53B Main Plate for Primate Products Style 

Products collar assembly drawing 

Neck Plate on Small Chair 

1-CS-53C Upper flange for Small Chair for Primate 

Products collar 

1-CS-53D Lower flange for Small Chair for Primate 


1-CS-53E Chase plate for Small Chair for Primate 


1-CS-53F Main flange for Small Chair for Primate 


1-CM-5 Fixed Neck plate for mini chair 

1-CM-5S Neck plate Support for mini chair 

1-DDC-5S Neck plate support bracket for Desimone chair 

1-SNYCH-5 Fixed Self Feed Neck Plate for Snyder Rear door Chairs w/large Neck Plate Opening 

1-SNYCH-5H Fixed Self Feed Neck plate for BACK DOOR Snyder chair (Front Door Models only) 

1-SNYCH-5K Rear facing Fixed Neck Plate 

1-SCHALL8-A Fixed Neck plate for (this is a two part neck plate) 

1-SCHALL8-B Fixed Neck plate for Vanderbilt goes with 1-SCHALL8-A 

1-SPCMURR-5 Fixed Self feed neck plate for Murray Chair 

1-CSTBM-5B Fixed Neck plate for neck plate for Murray Chair 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Removable Neck Plates 

Part Number 

1-CC-6 

1-CC-6C 

1-CC-6F 

1-CC-6FG 

1-CC-6FG-M1-SCHULTZ 

1-CC-6H 

1-CC-6G 

1-CCW-6 

1-CCO-6 

1-CCO-6H3P 

1-CCO-6SF 

1-CL-6 

1-CL-6D 

1-CS-6 

1-CM-6 

1-DDC-6 

1-SNYCH-F-6 

1-SNYCH-6 

1-SNYCH-6H 

1-SNYCH-6K 

1-SCHALL6 

1-SCHALL7 

1-SPCMURR-6 

1-CSTBM-6 

Description 

Removable Rear Neck Plate for Standard Chairs 

Removable Rear Neck Plate with Handle for Standard Chairs 

Removable Self Feed Neck Plate for Standard and TV Chairs 

Removable Rear Self Feed Neck Plate for Standard Chairs with Guillotine Back Door 

Removable Rear Self Feed Neck Plate for Schultz 

Removable Rear Neck Plate with Small Neck Opening for Standard Chairs 

Removable Rear Neck Plate for Guillotine Door 

Removable Rear Neck Plate for Wurtz Chair 

Removable Rear Neck Plate for Open Chair (old) 

Special Removable Neck Plate for Open chair (Aluminum) For R. Turner 

Removable Rear Neck Plate for Open chair with Self Feed Neck Plate 

Removable Large Rear Neck Plate for Large Chairs 

Removable Rear Neck plate Small Hole for Large Chairs 

Removable Rear Neck Plate for Small Chairs 

Removable Rear Neck Plate for Mini Chairs 

Removable Neck Plate, Rear for Desimone Chair 

Rear Neck Plate for Snyder chair with Foot Port 

Rear Neck Plate for Front Door Snyder Chair 

Removable self Feed Neck Plate for Back door 

Front removable neck plate Snyder Chair 

Base Neck Plate for Schall Chair 

Hardware to Mount Neck Plate on Schall Chair 

Special Rear Self Feed Neck Plate for Murray 

Rear Neck P late with handle for Murray Chair 


Telephone: 301-393-8615 · FAX: 301-393-8618 



ADJUSTABLE ROD BOTTOM PERCH: 

Primate rests comfortably and naturally in a squatting position. The adjustability of the perch, up or down, 

helps prevent atrophy and/or strain on leg muscles. Fabricated from stainless steel and aluminum, it also 

provides a continuity contact point for the Touch Bar. 

Perches are made with Stainless Steel cross bars and Aluminum sidebars to provide continuity for the Touch 

Panel. It includes 4 clamping screws for mounting on chair. Perch clamps to the Chair Sides without 

stressing the chair. 

The Perch provides a comfortable platform for the monkey to crouch in a natural position. 


1-CC-7 / Perch for Standard chair 1-CC-7A Side rails for standard chair perch 

1-CC-7L 

Long cross rails for standard chair perch 

1-CC-7S 

Short cross rails for standard chair perch 

1-CC-71 / Seat for standard size chairs 

1-CL-7 / Perch for Large Chairs 1-CL-7A Side rails for perch 

1-CL-7L 

Long rods for chair perch 

1-CL-7S 

Short rods for chair perch 

1-CL-71 / Seat for large chars 

1-CCT-HARV-7A / Seat for Harvard chair 

1-CCT-HARV-7A- Side rails for Harvard chair 

A 

1-CCT-HARV-7A-S Short cross rail for seat and perch 

1-CCT-HARV-7A-L Long cross rail for seat and perch 

1-CCO-7-OLD /Perch for old style open chair 1-CCO-7A-OLD Side rails for old style open chair perch 

1-CCO-7L-OLD Cross rails for old style open chair perch 

1-CCO-7S-OLD Short cross rails for old style open chair 

1-CLT-HARV-7 / Perch for large chairs with 3/8 cross 

bars 

1-CLT-HARV-7A Side rails for large perch with 3/8” cross 

bars 

1-CLT-HARV-7L 3/8” Cross bars long 

1-CLT-HARV-7S 3/8” Cross bars short 

1-CS-7 / Perch for Small Chair 1-CS-7-A Side bar for Small Chair perch and seat 

1-CS-7-L 

Long cross rails for Small Chair perch 

1-CS-7-S 

Short cross rails for Small Chair perch 

1-CS-71 / Seat for Small Chairs 

1-CM-7 / Perch for mini chair 1-CM-7A Side rails for mini perch 

1-CM-7L 

Long Cross bars for mini perch 

1-CM-7S 

Short cross bars for mini perch 

1-CM-71 / Seat for Mini Chairs 

1-CSTBM-7 / Perch for Murray chair 1-CSTBM-7A Side rails for Murray chair 

1-CSTBM-7B Cross rail for Murray chair 

1-SNY3-7 / Perch for Snyder small tall chair 1-SNY3-7A Side rails for Snyder small tall chair 

1-SNY3-7L Long cross rails for Snyder small tall chair 

1-SNY3-7S Short cross rails for Snyder Small Chair 

1-SCHALL1 / Perch for Schall Chair 1-SCHALL-1A Side Rails for Shall Chair (two per chair) 

1-SCHALL-1B Cross bars for Shall Chair (twelve per 

chair) 


Telephone: 301-393-8615 · FAX: 301-393-8618 



WAIST RESTRAINER PLATE: 

Suggested when using the chair with open front and sides to prevent primate from sticking his feet outside of the chair. 

This option is available in sizes to fit all size chairs and primates. 

Part Number 

1-CC-19 

1-CC-19-M1SCHULTZ 

1-CC-19A 

1-CC19SPLIT 

1-SNYCH-19M2 

1-CS-19 

1-CCO-19 

1-CSTBM-19 

1-CL-19 

1-CLT-19A 

Description 

Waist Restraint Plate for standard Chairs 

Waist Restraint for Schultz TV Chair 

Supplemental Waist Restraint For Standard Chairs 

Split Waist Restraint 

Waist Restraint Plate (may be deleted) 

WAIST RESTRAINT for Small Chairs 

Waist Restraint for Open Chair 

Waist Restraint for Murray Chair 

Waist Restraint Plate for Large Chairs 

Supplemental Waist Restraint w/Foot Port Option 

COIL SUPPORTS “WINGS” 

The Supports attach to the side of the chair body to accommodate the 15-inch or 18-inch Search Coil. 

Part Number 

1-CC-30 

1-CC-30A 

1-CC-30B 

1-CC-302 

1-CC-3020A 

1-CC-3020B 

1-CCT-30-CC1 

1-CCT-30-CC2 

1-DDC-30 

1-CS-30 

Description 

Wings for standard and large Chairs 

Wings Backer Plate 

Wing Brace 

Wings for 20” coils and Larger 

Backer Plate for Wings 

Brace for Wings 

Wings for Standard TV Chair with modifications for Chuck Chase Coil 

Wing Adjustment Plate for modified wings (1-CCT-30-CC1) 

COIL SUPPORT FOR DESIMONE CHAIR 

WINGS FOR SMALL CHAIRS 

WASTE TRAY 

The deep tray sized for your individual chair is easy to remove without disturbing any settings of the chair or the comfort 

of the animal while experiments are in progress. All waste is completely contained. 

Part Number 

1-CC-70 

1-SNYCH-70 

1-CL-70 

1-CS-70 

1-CCO-13-OLD 

1-CSTBM-70 

Description 

Waste Tray for Standard Chairs 

Waste Tray for Snyder Chair 

Waste Tray for Large Chairs 

Waste Tray for Small Chair 

Waste Tray for Old Style Open Chair 

Waste Tray for Murray Chair 

The collection tray for excretory waste slides conveniently into bottom of chair and fastens securely in place. It can be 

easily removed and replaced during the tasking period. Selecting an extra tray makes removing the full tray and 

replacing it with a clean, empty tray helps to prevent mishaps while the full tray is being emptied. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Chair Bottom w/ Aluminum Angles 

Part Number /Description Components Description 

1-CC-8 / Standard Base Assembly for 1-CC-8A Base Plate for Standard Chairs 

Standard Chairs 

1-CC-8B Aluminum side angles for chair base 

1-CC-8I / Standard chair base for old 1-CC-8IA Base Plate for old style ISO box 

style ISO box positioner 

1-CC-8B Aluminum side angles 

1-CL-8 / Large Base Assembly for Large 1-CL-8A Base Plate for Large Chairs 

Chairs 

1-CL-8B Aluminum angles for large chair base 

1-CL-81 / Large chair base for old style 1-CL-8A Base Plate for Large Chairs Old Style 

ISO chamber positioner 

1-CL-8B Aluminum Angles for large Chair Base Old Style 

1-CS-8 / Small Base Assembly for Small 1-CS-8A Base Plate for Small Chairs 

Chair Bottom Plate 

1-CS-8B Small Chair bottom support angles 

1-CM-8 / Base Plate Assembly for Mini 1-CM-8A Base Plate for Mini Chairs 

Chairs 

1-CM-8B Chair Bottom Support Angles for Mini Chairs 

1-DDC-8 / Bottom plate assembly 1-DDC-8 Bottom plate 

(Desimone Chair) 

1-DDC-8A Base angles 

1-SNY3-8 / Base Assembly for Snyder 1-SNY3-8A Small Tall Chair Bottom Plate 

Small Tall Chair 

1-SNY3-8B Chair bottom Support 

1-SNYCH-8 /Base Assembly for Snyder 1-SNYCH-8A Chair base for Snyder Chair 

Chair Standard Models 

1-SNYCH-8B Aluminum angles for Chair base for Snyder chair 

1-CSTBM-8 / Base Assembly for Chair 1-CSTBM-8A Chair Bottom Plate 

Bottom Plate Murray Style Chair 1-CSTBM-8B Chair bottom support angles 

Side Head Supports 

Part Number 

1-CC-9 

1-CC-9B 

1-CC-9BF 

1-CL-9 

1-CL-9B 

1-CS-9 

1-CS-9B 

1-CS-9-OLD 

1-CM-9A 

Description 

Side Head Support for Top Plate (Pair) 

Side Head Support for Universal Top Bar (Pair) 

Trapeze Model Side Head Support 

Side Head Support Assembly for Large Chairs w/Top Plate 

Side Head Support Assembly for Large Chairs w/Top Bar 

Side Head Support for Small Chair w/Top Plate 

Side Head Support for Small Chair w/Top Bar 

Old Style Side Head Support (For Replacement Parts Only) 

Side Head Support for Mini Chair 

The Side Head Support plates hole either a top plate of top bar. They are made from 1 inch thick Polycarbonate. These 

are standard on most style chairs Except the Audio Chair and Chairs with no head holding system. This system is 

designed to hold the head from the top. 


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1-CC-10 Top Plate 

The Top Plate is also one inch thick Polycarbonate which provides maximum strength and stability for holding the 

monkeys head in a fixed position even when the animal is moving around inside of the chair. This is designed for the (6- 

FHC, and 6-FAC) series Head Holder on Chair in Section Six of this catalog. A slot running front to rear and centered 

left to right holds the threaded (6-FHC-S2B Top Shaft) used for height adjustment and front to back positioning This 

setup allows the Head Holder on Head (6-FHP-S1, S2, S4, S6) to be mounted on the center line of the head. With our 

new Head Holder on Chair (6-FAC-) allows the Head Holder on the Head to be positioned slightly off center or the 

option of positioning the head at different angles and degrees. 

1-CC-10B Top Bar 

The Top Bar allows unlimited side-to-side adjustment and five possible front to rear positions, spaced at one-inch 

(2.5cm) increments. The (FHB-S) Universal Head Holder on the chair is the standard for the Top Bar options. The 

vertical bar extends downward to hold the implant on the head. A cross fitting is used to hold the vertical bar to the top 

bar of the chair. The fitting is locked in place by setscrews. 

We now have two new options for holding the head using the top bar option. The first option uses a slightly smaller top 

bar and holds the vertical shaft by a pinch block instead of the cross fitting. This system is not interchangeable with the 

1-CC-10B top bar It requires a different top bar on the chair. 

The (FAC) Swivel Head Holder on Head and the 1-CC-10B Top Bar provide a lot of positioning options for your 

subject. 

TOP PLATES/BARS: 

Part Number 

1-CC-10 

1-CC-10B 

1-CC-10B-2 

1-CC-10C 

1-CC-10-KELL 

1-CL-10 

1-CL-10B 

1-CS-10 

1-CS-10B 

1-CM-10 

1-DDC-9A 

1-CSTBM-10B 

Description 

Standard Top Plate 

Universal Top Bar 

Universal Top Bar (use with replacement for Hollander Fitting PT.# 6-BHB-RA-1) 

Standard Top Plate w/cut out in rear 

Standard Top Plate w/ Cut outs front and back 

Large Chair Top Plate 

Large Chair Universal Top Bar 

Small Chair Top Plate 

Universal Top Bar for Small Chairs 

Top Plate for Mini Chair 

Top Bar for Chair 

Push Bar Handle for Murray Chair 

TOUCH BAR: 

Aluminum Touch Bar is used in training and during some types of experiments requiring Eye-Hand responses. Front 

panel of the compartment can easily be replaced with a separate panel for other types of investigations. 

1-CC-20 

Touch bar assembly 


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BASES & TROLLEYS: 

1-V50 Chair Base Tall, Metal Frame 

Part Number Description Chair Size 

1-V50S Tall Base Small Chairs 

1-V50 Tall Base Standard size Chairs 

1-V50L Tall Base Large Chairs 

1-V50M Tall Base Mini Chairs 

A box construction style of extruded Aluminum is used for the Chair Base (1-V50). 

This Base height is adjusted for each size chair and raises the chair to a level that 

brings the eye height of the subject to 47.5 inches (121 cm) from the floor. The width 

of the base is 16 inches (40.6cm) and the length from front to rear is 16.5 Inches (42 

cm). These dimensions can be changed to suit your setup. The chair is mounted to the 

base perfectly centered using two wing thumbnuts. This allows easy removal from the 

Base. Chairs with the Sliding rear door “Guillotine type door” the chair is often shifted 

to the rear of the base instead of centered to allow easier loading and unloading of the 

subject. All Tall Bases come with 5-inch locking, non-conductive swivel casters. There 

are many chair positioning options available for this style base. (Also see chair 

positioners below.) 

1-V60 Transport Trolleys: 

Trolley shown with chair positioner Sold Separately 

Part number Description Chair Size 

1-V60S Trolley Small Chairs 

1-V602 Trolley w/ 2” wheels Standard size Chairs 

1-V602ISO 

Trolley w/ 2” wheels Standard size Chairs 

for Isolation 

Chamber 

1-V605 Trolley w/ 5” wheels Standard size Chairs 

1-V60L Trolley Large Chairs 

1-V60M Trolley Mini Chairs 

The Trolley is a low Aluminum Platform equipped with 2” swivel castors. This is an excellent choice for transporting 

your subject from its cage to the experimental set up, especially when using the Isolation Boxes. 

The height from the floor is 6 ¼ inches it can be increased or decreased to make it level with your test chamber. The 

trolley comes with 5” locking wheels however 3” and 2” non-locking wheels are available please specify when ordering. 

The Chair is held firmly in place with 2 cam action vertical clamps. 


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When ordering a transport trolley that will be used in conjunction with an isolation chamber, please notify us so that we 

can adjust the height of the transport trolley to match the height of the isolation chamber. 

There are various positioning systems available for the trolley: 

(1-V65) will position the chair on the trolley in the same fashion as the tall base using two studs and wing nuts to center 

the chair on the trolley. 

(1-V-77A) Positioner for Isolation Chambers sees Positioners 

FLOOR POSITIONERS: 

Floor Positioners fix and position your chair in the experimental set up. All bases are designed to fit the Chair Floor 

Positioner (1-V70, -76). Switching from one chair size to another requires no change in your lab setup. For models 

using Trolleys or for set ups in Isolation Boxes, the Positioner is the (V77) Series. 

1-V-70 Standard Chair positioner 

Our most popular chair positioning system consists of two 

assemblies. The (1-V-70A) this is the floor or wall mount 

assembly, and (1-V-70B) Chair base assembly. The Chair is 

positioned by two buttons and locked in place with a Latch Block. 

Space requirements length 18 ½ inches (47cm). Distance from chair 

base to end of diagonal bars 15”(38 cm) to 20” (51 cm) depending on 

angle of support. 

Figure 1-6 Standard 1-V-70 positioner 

New Option available for the Standard floor 

Positioner 

This option is available for the standard type Floor positioner 

on the tall base or trolley. It incorporates three latches for 

extra stability for overly active monkeys. 

1-V-73-3 

Slide plate floor positioner 

This positioner takes up less room than the 1-V-70 positioner. Three “L” 

shaped legs or slide plates (1-V-73B) mounted on the chair base (1-V50) . A 

fourth leg can be added for extra stability for overly active monkeys. The foot 

slides up for moving the chair to and from the caging area. The foot of the 

slide mates with the studs in the floor plate (1-V73A) and held by knobs. The 

Floor Plate (1-V73A) has a beveled edge making it easier to roll the chair into 


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position The floor plate increases the eye height by ¼ inch (3/4 cm). The floor plate can be omitted 

by mounting the studs in the floor. It becomes harder to see the studs in the floor mounted in this 

manner, and harder to move the setup. 

V-76 Center Post Positioner for Chairs 

Permits Chair to rotate 360 degrees and be locked into any position around the 

center post “Z” axis. It is equipped with a protractor around the center post 

with a pointer for easy positioning. Frequently used in peripheral vision 

experiments. 

NOTE: It is recommended that the decision to use the Center Post 

Positioner be made at the time of the Chair order, as the base requires 

modifications to accommodate installation and use. 

1-CC-BAG 

Canvas Chair Cover: 

Our Canvas Chair Covers are for covering the Chair while transporting the monkey through sensitive areas (Public 

areas). We have a style to fit your chair. Our Canvas Covers can also be ordered with a metal frame for extra support. 

This option adds about 15 pounds of weight to the cover. 

Part Number 

1-CCP-BAG 

1-CCA-BAG 

1-CCT-W-BAG 

1-CLP-BAG 

1-CLA-BAG 

1-CL-W-BAG 

1-CS-BAG 

1-CSA-BAG 

1-CS-W-BAG 

Description 

Standard Chair with no Options 

Standard size chairs with Audio Post Option 

Standard size Chairs with Wings (coil supports) 

Large Chair with no options 

Large Chair with Audio Post 

Large Chairs with Wings 

Small Chairs with no Options 

Small Chairs with Audio Posts 

Small Chairs with Wings 

NOTE: Other canvas covers can be manufactured to correspond with other types of chairs with 

different specifications. Please supply a description of the chair for accurate sizing. 


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VPCK0A 

Solid Transport Cover for Primate Chair: 

The solid Transport Box is a more secure way of transporting the Primate in the Chair than the Canvas Covers. The 

chair is placed inside the box and clamped into place. The box comes with double doors front and rear. This makes 

loading easier. It comes with five-inch Locking wheels and the floor height matches the Travel Trolleys (1-V60). The 

cover is developed on an aluminum framework and covered with opaque white Lucite. The Size of the box is 28 

inches (71 cm) wide with a twenty-six inch door opening. The box is twenty inches deep and Forty-four and one half 

inches tall. Modifications are available to meet individual needs. Made to fit all sizes of chairs. 

Part Number 

Description 

1-VPCKOA-CCO 

Standard Transport Box 

1-VPCKOA-CUSTOM 

For ordering custom boxes 

1-VPCKOA-SLIDE 

Box with sliding door 

1-VPCKOA-INS 

Box with Insulated Sides 

PICTURED 1-VPCKOA-SLIDE 

1-VPCKOA-CCO 

VPCT 

Hydraulic Lift Table with Smooth Plastic Top: 

This lift table will raise the level of the chair from approximately 8.3 inches above the floor to approximately 29 

inches. Overall platform size is 28 x 17-1/2 inches. Top is plastic finished for easily sliding chairs into the 

experimental set up. The chair, minus a base or trolley, can be clamped securely for transport to and from the 

laboratory to the housing area. In some instances this transport can be incorporated into the experimental set-up. 


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1-Spare Parts 

Section 1 CHAIR PARTS 

Part No. Price Component Name & Parts Parts Total 

per 

set 

1-KNOB-NP $8.30 Neck Plate Cross Knob ea 1 

1-KNOB-R1.5 $6.00 Perch or Waist Rest. Knobs w/Studs 1 

HK-CL-1A-PPK-1 $3.63 ea Waste Tray Cross Knobs 1 

1-DHS-20 $17.50 each Door Hinge wo/Screws 

1 

(un-drilled ) 

1-CC-16H $61.27 set Standard Hinge pre drilled 

w/mounting hardware hinge for 

standard chairs 

1-CC-16H 

Screws, 12 ea. 8- 

32 x 7/8” PH 

1-CC-10-WS $27.10 each Welded Cap Screws for Top Plate 

1 

(4 needed per chair) 

1-CC-10B-WS $27.10 each Welded cap Screw for Top Bar 

(2 Needed per chair) 

1 

1-ANB3 $36.80 set Chair Base Screw Set Button Head 

Screws 

20 

Double T Nuts 10 

Single T Nuts 10 

1-CC-16SA $158.70 Compression Latch w/Screws Set and Compression 

Extrusion 

Latch 

1 

Compression 

Latch Hook 

1 

Screws, 4-40 x 

1/2” 

2 

Screws, 4-40 x 

3/8” 

2 

1-CC-16A 2 

1-CS-5LOKSQ $238.83 set 5” locking wheels for V50 chair base Casters, 5”: 

Locking 

4 


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Section 2 – Animal Handling 

SafeWrangle 

Animal Guide 

The SafeWrangle Animal Guide, developed by Crist Instrument Co., Inc. has been said to be one of the safest devices 

on the market for handling your primate. One of the most important safety features is inherent to the ergonomic design of 

the handle. As opposed to a straight pole, which can easily slip out of the lab technician’s grip, the pistol grip provides 

better control of the animal because it allows the lab technician to hold the pole more securely. The automatic thumb 

safety latch, which is unique to our design, provides a secure latching mechanism that straight pole designs do not 

provide. Once the primate’s collar is securely attached to the stainless steel hook at the end of the pole, the safety latch 

prevents accidental release. Only after the release of the safety latch can the pole be removed from the collar. The 

distinctive safety mechanisms of this rugged heavy wall metal pole allow for easy operation with one hand and effective 

control of the animal from a safe distance. Our monkey poles are designed for use with the collars listed below, as well 

as many brands of collars. Our standard model SafeWrangle is available in lengths of 36 inches (91.5 cm) and 24 

inches (60.9 cm). Custom lengths are available upon request. 

2-SWAG-36 

2-SWAG-24 

36” Pole 

24” Pole 


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Animal Collars 

Our Collars are durable, washable, and include an extra link for quick and easy disconnection. They also come with a 

replaceable rubber covering for added comfort. The collars are especially recommended for use with the HMP-02 poles. 

2-HCM-S 

Monkey Collar, Small 

• 9 1/2 inches (24.3 cm). 

2-HCM-M 

Monkey Collar, Medium 

• 11 1/2 inches (29.2 cm). (Recommended for most primates weighing 6 to 9 kilograms). 

2-HCM-L 

Monkey Collar, Large 

• 13 1/2 inches (34.3 cm). 

The DuraCollar 

We’ve made the safest and most 

Comfortable collar even more 

Durable to increase its service life. 

It’s one of the ways 

Crist Instrument Company 

Helps s-t-r-e-t-c-h your 

research budget 

Resists corrosion 

New, more durable material 

Easy-access hook ring 

360° capture (when used with our 

Safe Wrangle Animal Guide) 

Comfort-engineered 

Slim, contoured design 

Standard models are available 

in these popular sizes: 

Large: 14 ¼" 

Medium: 12" 

Small: 10 ½" 

Xtra Small: 9” 

Xtra Xtra Small 7 ½" 

Custom lengths are also available. 


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Section 3- Microdrives & Related Equipment 

Figure 3-1 Micro Recording Syringe 

3-MRM-S02 

Recording Micro Syringe 

The Recording Micro Syringe injects and records simultaneously from the electrode contained within the syringe barrel. 

It was designed by “Chuck” Crist to bring about the placement of lesions in an extremely accurate area of cells. 

Recordings are made prior to, during, and after injections to verify the effectiveness of the lesion. This unit is packaged 

in its own plastic case and includes three recording needles and one matching Hamilton Syringe barrel. The needle size 

of the Micro Recording Syringe is 28tw gauge. 

SUGGESTED PROCEDURE: 

Fill syringe body before attaching to electrode needle. Then attach needle and force fluid through. Repeat this until 

fluid shows at the tip. This should take about 10.17 micro liters of fluid to fill the needle Refill syringe body one more 

time equal to or more than you intend to inject. You are now ready to assemble and insert into the brain. Attach syringe 

body to electrode needle. Attach assembly to your electrode manipulator-drive. Position the electrode needle above the 

guide tube into the brain. Care must be taken not to bend the tiny electrode wire as it is lowered into the guide tube. 

Any bend in the electrode wire will render the device inoperative or, at least, inaccurate. Once the electrode is safely in 

the guide tube, you can attach the lead for the electrode part of the system. Use a miniature alligator clip and attach to 

the tube at right angles to the cannula. This completes the electrode circuit. You are ready to proceed with your normal 

recording procedures to select a site for the injection. When the site is chosen, inject the desired volume of fluid. 

Depending on what you have injected, the response should be almost immediate. 


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MICRODRIVE MOUNTING ADAPTERS 

3-MMK-A1 

X - Y Stage with Kopfâ Microdrive Mounting Adapter 

Our X-Y Stage is designed to be compatible with Kopf Instrumentâ microdrives with the Crist Instrument grid system. 

(See section 6 for grids and adapters.) The base is designed to fit the grid adapter (smoke stack). Using the X and Y 

lead screws the X - Y Stage moves the electrode into position above the guide tube with the guidance of a vernier scale. 

A vertical post supports the Kopfâ adapter and is graduated in easy to read millimeter increments to measure the coarse 

movement of the entire microdrive. When the adapter has been locked, the normal hydraulic movement would be 

effective in driving the electrode. The adapter supports the standard Kopfâ hydraulic microdrive. 

Fig. 3.7 

X-Y Stage Chamber and Grid Assembly 

Figure 3.4 X - Y Stage with Kopfâ Microdrive Mounting Adapter 

3-MMK-A2 

X - Y - Z Stage with Kopfâ Microdrive Mounting Adapter 

This is the 3-axis model designed for the Kopfâ microdrive. This model is almost identical to the MMK-A1, except it 

has a lead screw driven” Z” axis. 

3-MMN-A1 

X - Y Stage with a Narishige Microdrive Mounting Adapter 

This is the 2-axis model designed for the Narishige hydraulic drive microdrive. This X - Y stage is identical to the 

MMK, but the stage adapter is designed to fit the Narishige hydraulic drive microdrive Model MO-95. 


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3-MMN-A2 

X - Y - Z Stage with the Narishige Microdrive Mounting Adapter 

This is the 3-axis model designed for the Narishige hydraulic drive microdrive. It is almost identical to the MMN-A1, 

except it has a screw driven “Z” axis. 

Fig. 3.5 X-Y Stage Positioner Ring 

3-MNJ-S01 

X - Y Stage Positioner Ring 

This positioner ring is compatible with the Narishige X - Y Stage, as well as the Crist Instrument X – Y stage. The ring 

fits on the grid adapter/positioner with a double groove top and is used when absolute repositioning of the X - Y Stage is 

required. It is to be used with our Guide Tube Support advancing device for random sampling. See Figure 3.5. This 

Positioner Ring can also be used with a Chamber with a double groove. 

3-MGS-AH23 

Guide Tube Support 

This guide tube support is compatible with the above, modified Narishige 

microdrive, which has a larger opening in the plastic platform for general use 

with our grid system. The guide tube support should be used in preliminary 

searches of general areas. This search should allow you to locate a specific area 

from which you intend to do chronic recordings. The MGS-AH23 

accommodates a 23-gauge guide tube. In the case that other size guide tubes are 

used, the device has a replaceable holder that can be made to your 

specifications. The MGS-AH23 will come with the standard 23-gauge holder 

unless you specify otherwise. Fig. 3.6. 

3-MNJ-P02-M 

Modification of Narishige Microdrive - Plastic Base 

The Narishige MO 95 top plastic platform must be enlarged in order to see the Guide Tube openings and to facilitate the 

passage of the electrode into Guide Tube. This modification requires you to send us your top plastic platform. See Fig. 

3.7. 

3-MNJ-05M-xx 

Modification of Narishige Microdrive - Tubing 

This modification extends the distance between the work site and the control site by extending the tubing up to 25 feet of 

hydraulic line. When ordering, please specify the length of tubing you require. (This does not include the modification 

of the plastic base.) CAUTION: Due to the longer length of Teflon tubing, you may expect some increase in hysteresis. 

We therefore recommend that you keep your tube length as short as possible. This modification requires you to send 

us your Narishige MO 95. 

3-MNJ-MSET 

Modifications of Narishige Microdrive - Plastic Base & Tubing 

Save time and money by having both modifications done at the same time. 


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MICRODRIVES 

Miniature Microdrive 

3-NRMD 

This unit is designed for a multitude of uses. One possibility is to attach it inside the standard or the offset grid. Other 

possibilities include inverting the grid and attaching one or more microdrive units with a long guide tube, or attaching it 

to the new grid cap. The base on this microdrive is available in three configurations: offset right, offset left, or inline 

symmetrical. This miniature unit should be mounted inside of a chamber, preferably with our grid having one millimeter 

spacing. 

PROCEDURE 

The microdrive is assembled into the grid by pushing the position pin into one of the holes of the grid. The 000 selftapping 

screw is inserted through the hole, as indicated, and is screwed into one of the holes in the grid. The guide tube 

is pressed into the grid in a position that lines up with the slot in the front of the moving carrier. The electrode is then 

gently inserted into the guide tube and allowed to lower itself by its own weight until it rests on the dura. The electrode 

is then pressed gently into the slot and glued in place (we recommend Duco Cement or thick Crazy Glue) and allowed to 

dry. When removing the electrode use acetone to dissolve the glue. The electrode will advance 0.25 mm each time the 

screw is fully rotated 365°. 

This microdrive will also fit onto the new miniature grids for very 

small animals. These microdrives can be arranged to place as many 

as four in a standard monkey grid. In addition, the microdrives are 

available to each hold one, two or three electrodes. Order as 

follows: 

Figure 3.8 Minature Microdrive inside Standard Grid 

Asymmetric Foot Placement 

3-NRMD-A1-R 

3-NRMD-A1-L 

3-NRMD-A2-R 

3-NRMD-A2-L 

3-NRMD-A3-R 

3-NRMD-A3-L 

1 Right Electrode Holder 

1 Left Electrode Holder 





Symmetric Foot Placement 

3-NRMD-S1 

3-NRMD-S2 

3-NRMD-S3 

1 Electrode Holder 




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3-MRI-1 

New all plastic manual MicroDrive 

These Microdrives are 100 % MRI compatable are are very similar to the (3-NRMD serries ) These only come in a 3 

electrode Model. 


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BIELA MANUAL MICRODRIVES 

The Biela Rat Microdrive was designed for use in short 

term or chronic experiments. The Biela Microdrive 

operates manually and consists of a chamber that is 

mounted on the head, the body, the thimble and a cap to 

be used when the Microdrive is removed from the 

animal’s head. The main feature is that the electrode does 

not turn when you rotate the thimble. The chamber is 

attached to the skull using accepted surgical procedures. 

This chamber is threaded on the outside with a #8-64 

right hand thread. The body screws on to the chamber. 

The Electrode is inserted into this unit and moves 

smoothly through the layers of tissue in a linear direction. 

There is a cap and plug to put in place when the 

Microdrive is not in use. When the cap and plug are 

removed the threads on the chamber are exposed. There 

is a short piece of Teflon tubing that fits inside the chamber that acts as an insulator and helps to align the drive with the 

chamber. This Microdrive is available in three lengths of travel, the 9mm, 14mm and the 23mm. The overall length of 

the 9mm Biela Microdrive is 18mm when closed and the 14mm is 24mm when closed. These units will accept an 

electrode up to one (1) mm in diameter, thus allowing for the investigator to use single or multi-electrodes. The Inner 

Chamber is designed to support four (4) glass micro-pipettes drawn to a fine tip. 

PROCEDURE 

To place one of these Microdrives into use, follow the ensuing procedures. Open the 

Microdrive to its longest length, being careful not to disassemble the thimble and body. 

By hand insert the electrode through the center of the Teflon tube at the top. With the 

point of the electrode resting on the durra, apply a small drop of duco cement. It is 

important to be extremely careful and not allow any of the cement to come in contact 

with the functioning units at the top of the spindle. An alternate method for holding the 

electrode is to use a very small piece of shrink tubing to hold the electrode and the top 

end of the non rotating barrel while driving the electrode below the dura. All threaded 

and moving parts should be lubricated with a very small amount of lanolube to assure 

smooth and repeatable movement. 

3-MMB-1 

Biela Microdrive Set, Miniature 9mm 

The miniature, manually driven microdrive is designed for use on mice and rats. The Biela Microdrive design is unique 

since it is a manually rotated device that moves the electrode along its axis without rotation. The set includes the 

Microdrive, 3 mounts with caps, and a set of tools 

3-MMB-2 

Biela Microdrive Set, Small 14 mm 

The small, manually driven microdrive is designed for use on rats and other small animals. The set includes the 

microdrive, 3 mounts with caps, and a set of tools. 


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3-MMB-3 

Biela Microdrive Set, Medium 23 mm 

The 23 mm microdrive with its longer length of travel is expected to be available in early 2007. It is operationally the 

same as the Miniature and the Small travel lengths to achieve deeper penetration levels. 

3-MMB-SF 

Biela Microdrive & Foot 

This system anchors the Biela Microdrive into the grid, mounting the miniature microdrive inside the grid cup for long 

term chronic studies. Use of the Microdrive in this manner requires special caps for added clearance inside the chamber. 

This setup can be utilized with either the 9mm, the 14mm or the 23mm size microdrive. The set includes one miniature 

microdrive, one mounting foot, one 000 screw and one guide tumbe up to 60 mm. When ordering specify 3- 

MMB-SF-9 for the small size or 3-MMB-SF-14 for the 14 mm unit or 3-MMB-SF-14 for the 23 mm unit. 

3-MMB-1D 

3-MMB-2D 

3-MMB-3D 

Biela Microdrive, 9 mm (Microdrive Only) 



3-MMB-CM Biela Microdrive, Mount & Cap 

One Mount and One Cap included in this item. Fits both the 9 mm & the 14 mm microdrive. 

3-MMB-C4 Microdrive Cap 

3-MMB-M4 

Microdrive Base (Mount) 

3-Spare Parts 

3-MMB-Tool Biela Microdrive Tool Set 

Contains one each large and small blade tool 

3-MMB-STS Stereotaxic Support for Biela Microdrive 

The Stereotaxic holder is designed for use when the subject animal is in a stereotaxic device and the normal cranial 

holders are not used. The device can be used in this manner with or without the guide tube. If the guide tube is used 

you will need a guide tube pressure plate that is a part of the foot. 

Section 3 Microdrive Parts 

Biela Microdrive 

3-MMB-SP1 Inner Sleeve Tubing for - 

MMB-1, 2 or 3 

3-MMB-SP0 

3-MMB-CSP4 

Outer Sleeve Tubing for 

- MMB-1, 2 or 3 

Microdrive Cap Plug 

Rod 

3 ft. lengths 

(91.44cm) 

3 ft. lengths 

(91.44) 

5-3/4 in. 

(15cm) 

lengths 

Lubricant 

ZGM-LANO 1 Tube Lubricant Approx. 2 oz. 

(59.147ML) 

3-MDRV-14 Microdrive Foot Each 1 

FS-000x5/32 000 Self Tapping Screw 3 each 3 

1 


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CRIST INSTRUMENT CO., INC. 

Section 4 – Touch Panels and Interactive Devices 

Figure 4.1 

Touch Panel Module (4-TPS-E1) 

4-TPS-E1 

Touch Panel Sensor Module 

The 4-TPS-E(x) touch panels are contact sensitive devices designed to activate when a grounded primate touches 

it. Attaching one side of the device’s electronics component to the primate chair’s metal perch, then attaching the 

other side of the device to a rod (that is easily reached by the primate) achieves the grounding of the primate. 

When contact is made, the “normal” output will give a “positive logic” TTL signal. The “invert” output will give 

a “negative logic” TTL signal. The signal can then drive another device – like Crist Instruments “5-RLD-E(x) or 

D(x)” Reward Systems, or it can be sent to the I/O Module in your computer. If your computer is running an 

interactive program, e.g. LabVIEW or TestPoint, etc. It will sense the TTL pulse. From there, one can process the 

signal, or drive a device like the reward system. For this configuration the outputs will produce a pulse with the 

duration is equal to the time the subject is touching the metallic rod or pushing the button. 

4-TPS-E2 

Touch Panel, Short Duration Module 

This Touch Panel is identical to the 4-TPS-E1 except that it is designed to send a short duration pulse. This pulse sends 

either a positive (normal) or negative (invert) TTL signal to the computer when the animal touches the sensor bar or a push 

button. Like the TPS-E1, the unit’s sensitivity is adjustable. In this configuration the outputs will produce a fixed pulse of a 

factory-preset duration. This time is preset to 1/3 second; but can be changed by request at the time of purchase. 

Crist Instrument 


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1 




SwivElectra 

The SwivElectra, also known as an electrical swivel, or commutator, is 

a high-precision instrument. It allows a subject to move freely within its 

environment, while keeping multiple electrical recording/stimulation channels 

untangled. SwivElectra has continous bi-directional rotation. Available in 

up to 36 Channels. 

SwivElectra commutators work well when recording EEG or neural signals in studies where subjects are awake and active. 

Wires connect between the commutator and the electrodes on the subject. The commutator swivels freely with the animals 

movements preventing wires from tangling. When mounted in the ceiling of the testing chamber it permits continuous full 

rotation in any horizontal direction. 

Rotation is achieved with the use of extremely free running bearings. Torque is approximately .05 inch ounces per channel. 

Current is rated at 1 amp per ring. Noise levels for most of our slip 

rings show changes in contact resistance of approximately .005 ohms. 

When a “run-in” period is used, this level of resistance is usually 

reduced. Some “run-in” is generated prior to shipment. To achieve the 

best results “run-in” should be completed in the actual environment 

where it will be used. Dual contacts on gold slip rings allow for 

minimal noise in the transmission of data. 

When it is desired to dispense fluid to the subject a cannula may be fed 

through the rings of the commutator. At the time of ordering, please let 

us know what size tube you need to have installed. SwivElectra 

commutators are available in sizes ranging from 9 channels to 80 

channels. The output connections on this commutator are sub D 

receptacles. Connectors are available in 9 pins, 15 pins, 25 pins, and 

44 pins. 

Figure 4-2 

Commutators 

4-TBC-9S 

SwivElectra Commutator, 1 to 9 Channels 

The 9-channel version of the SwivElectra Commutator is the smallest unit with the least amount of torque. It has an 

extremely free moving rotation suitable for small animals. Two female 9-pin Sub D Receptacles are provided on the 4-TBC- 

9S. Cabling and connectors to your data collection equipment are not provided, but are available upon special request. 

When ordering cable and connectors, please specify the length of cable and the type of connector required to attach to your 

equipment. See Figure 4-2, left side. 

4-TBC-9-LT 

SwivElectra Commutator - with Cannula for Liquid Tube 

This product operates in the same manner as the 4-TBC-9S. However, this unit is made from the larger 4-TBC-25 

commutator to accommodate the addition of the cannula through the center of the unit. This commutator also includes the 

same 9-pin connectors as the above unit. 

2 


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4-TBC-25 


This product operates in the same manner as the 4-TBC-9S. This is a larger unit than the 4-TBC-9S. The torque ratio is not 

quite as free as in the 9-pin due to the increased number of rings and brush blocks, but, all 25 pins can be used for data 

transmission. Two 25-pin receptacles are provided on the 4-TBC-25. See Figure 4-2 right side. 

4-TBC-25-LT 

SwivElectra Commutator - with Cannula for Liquid Tube 

This product is the same as the 4-TBC-25, except with the addition of the cannula. 

4-TBC-36 


This product is that same as the 4-TBC-25, except a different connector (44-pin) is used to accommodate more channels. 

4-TBC-36-LT 

SwivElectra Commutator - With Cannula for Liquid Tube 

This product is the same as the 4-TBC-36, except with the addition of the cannula. 

SLICE CHAMBERS 

4-BSC-4 

Tower Biela Slice Chamber 

The Biela-style slice chamber is used to maintain and promote slices of tissue in a warm, moist, oxygenated atmosphere. 

There are four separate slice chambers with a central oxygen distribution tower. Each tissue chamber is provided with a fluid 

supply and siphon to prevent overflow. Additionally, the chamber has a grounding loop in the bottom. The slice itself is 

supported on a special mesh that allows circulation of a nutrient rich fluid. The temperature of the entire chamber is 

controlled by a submerged heating element and a thermister that senses the temperature. Slice chambers with different 

numbers of towers can be provided upon request. 

At the present time we do not provide the electronics controls or pumps. 


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3 




AUDIO STIMULATORS 

4-TAS-FAR 

Fixed Angle Rotary Audio Stimulator 

This device is designed to provide audio signals that originate equidistant from the center of the subject’s head via a 

curvilinear arm. This arm supports the speakers and is suspended from above rotating a full 360 degrees around the animal. 

The angular vertical positioning is fixed at angles dependent on the speaker size and number. The speakers are activated 

from a preset controller that allows each speaker to be independently selected, thereby providing a known position. It can be 

built to fit either in an anechoic chamber or other laboratory space. A minimum of six feet of vertical height is required. 

This product is built to order, allowing for customization. 


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4 




4-TAS-VAR 

Variable Angle Rotary Audio Stimulator 

Similar to the 4-TAS-FAR, this device is designed to provide audio signals that originate equidistant from the center of the 

subject’s head. The arm supports a single movable speaker, which is moved up and down permitting infinite and accurate 

positioning. The movement of the speaker is computer controlled; therefore, a single or multiple set(s) of positions can be 

preprogrammed and consistently repeated. Other than the movable vertical control of the speaker, this device performs 

exactly as the 4-TAS-FAR. This product is built to order, allowing for customization. 

CUSTOM INTERACTIVE EQUIPMENT 

Vestibular Platforms 


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5 




4-VP03 

BODY ROTATIONAL VESTIBULAR PLATFORM 

This unit is designed to rotate the body while holding the head stationary. The rotational axis of the chair passes through the 

rotational axis of the neck allowing 40 degrees rotation to the left and the right without harming the neck of the subject. If 

the animal resists a sensor shuts down the experiment and the subject will receive no reward. Rewards will be given when 

the computer is satisfied that a complete cycle has been accomplished. Computer parameters are set by the investigator. We 

suggest the use of National Instruments Lab View as the operative platform. In addition, this chair can be modified to hold 

the chair in place while rotating the head or it can also be used in standard vestibular experiments where the head and the 

animal are swung back and forth or rotated 180 degrees. Call us for further details or customization to your exacting needs. 

4-VP02 

VESTIBULAR SWING APPARATUS 

The Vestibular Swing Apparatus swings the subject from side to side approximately 30 degrees in each direction. It can be 

used with varying acceleration/deceleration patterns and variety of distances from the center of arc. The apparatus is 

designed to support a Crist Primate Chair to hold the subject. Call for further details or customization to your exacting needs. 


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6 





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7 




4-DCM01-G 

Digital Compression Monitor 

The new Digital Compression Monitor (4-DCM01-G) is an intelligent device that monitors grip 

strength verses time and provides a means to save and / or plot the data. There is also a trigger output for 

use with our Reward Systems or PC. The Monitor is composed of three components: 

1. Grip Sensor Handle 

· Same Grip Handle as used with our Digital Reward System Sensor Interface. 

· Range of ~ 20 Mohms (no load) to ~ 60 Kohms (100 lbs). 

2. Grip Interface 

· Data collection / PC interface module. 

· The duration of the data collection can range from 2sec to over 20min. 

· A programmable Trigger Output allows connection to our Reward Systems or a PC to facilitate 

Training / Data Collection by use of Reward Techniques. 

o Reward at User Set Grip Threshold. 

o Reward at Completion of Data Collection. 

o Instant Reward. 

3. Grip Monitor GUI 

· Designed to operate on a Windows platform under Win 95/98/2000/XP. 


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8 



4-GSI-D1 


SENSOR INTERFACE 

The new touch sensor and more! 

The new Sensor Interface (4-GSI-D1) is an intelligent device that generates reward triggers to the Digital 

Reward Controller. It has been designed to work with multiple input devices and to provide data to the controller 

in addition to the reward trigger. This device may be used with the previous E(x) series of reward controllers; 

HOWEVER, the data reporting and trigger delay features will NOT be functional. This device may also be used 

with a PC I/O; BUT the data reporting and trigger delay features will NOT be functional unless the 

communications protocol is implemented. 

SPECIAL FEATURES 

· Easy interface to reward system via standard 6-6 (RJ12) modular phone cable. 

· Easy interface to input device via standard stereo audio cable. 

· Sensor Interface is powered from the Reward Controller through the interface cable. It does not 

require any AC source. 

· Sensor Interface is designed to work with three different input devices: Switch, Touch bar (or 

plate) and a Grip sensor handle. 

· The Touch mode has a range of ~ 40 Kohms to ~2000 Kohms. 

· The Grip device has a range of ~ 20 Mohms (no load) to 

~ 60 Kohms (100 lbs) 

· Trigger output may be “On Contact” (Normal mode) or “On Release” (Invert mode). 

· Input device, range and trigger polarity (Mode) are switch selectable. 

· Trigger output may be delayed from contact (or release) in increments of 1 second between 0 and 

127 seconds, via the reward system GUI. 

· For Touch and Grip input devices, trigger threshold may be set by means of a front panel control. 

This value is reported to the reward system GUI. 

· For the Grip input device, whenever the trigger threshold is met, the maximum and average grip 

values are reported to the reward system GUI. 

· The new Sensor Interface is mounted in a durable plastic enclosure measuring only 2 by 3 by 5 

1/4 inches. 


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9 



Section 5 – Reward Systems 

Fig. 5.1 Complete Liquid Reward System (5-RLD-E1) - Dispenser Unit 

(left), Rack Mount Control Panel (right). 

5-RLD-E1 

Liquid Reward System- Liquid Dispenser, Rack Mount Control 

The original Crist Instrument Liquid Delivery System consists of a control panel (5-RLD-E1B), a dispenser unit (5- 

RLD-E1C), one mouthpiece (sipper tube) (5-RLD-00A) and a 25-foot midi-cable connecting the Control Module to the 

Dispenser Module. The rack mounted control panel provides a variety of features designed to dispense various quantities 

of reward. This system has two audible, reward dispensing signals each individually controlled from the Control Module. 

One audible signal is on the control unit; the other is on the dispenser unit. A reward can be administered by pressing the 

reward button, located on the control panel, via your computer, or by the optional remote. The control panel also 

supports a connection for the optional operator controlled Remote Dispenser Switch (5-RRC-E0D). The dispenser unit 

is designed to hang or sit near the subject in the experimental setup. This is a gravity fed system using a low voltage, 

quick acting solenoid. The mouthpiece (sipper tube) attaches conveniently to your Crist Instrument primate chair. For 

additional information see the individual components listed below. 

5-RLD-E1B 

Control Panel Component for Rack Mount Liquid Reward 

The rack mounted Control Panel is designed for your computer rack and can be purchased separately. This is the same 

unit, which is provided with the RLD-E1, Liquid Reward System, described above. It was originally designed to 

dispense liquid rewards from a gravity fed dispenser module. (See 5-RLD-E1C) The rack mounted control panel 

provides a variety of features designed to dispense various reward quantities. The features include from left to right: 1) 

A Sonalert, 2) Toggle switches to control both the sonalert on the panel and the Sonalert on the dispenser system. 3) 

Computer inputs, one BNC connector and a double banana jack, which also can be used to plug the Touch Panel Sensor 

directly to the Reward System. 4) The DIN connector for the dispenser module. 5) A rotary time selection/computer 

override switch labeled “TIME (MS)”. This controls the millisecond volume of liquids dispensed per reward dispensing 

larger or smaller drops of liquid. 6) The manual red push button reward switch. 7) A remote control double banana jack 

input. 8) A front mounted fuse for easy access. 9) An indicator light that signals when the Power is on. 10) The on-off 

Power toggle switch. See control panel in Fig 5.1. 

NOTE: Due to the lack of availability of some electronic components, this system may be discontinued. See newer 

models below. 


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5-RLD-E1C 

Gravity Fed Liquid Dispenser Unit 

This Dispenser Unit works with the Rack Mount Liquid Control Module (5-RLD-E1), the Free Standing Control Module 

(5-RLD-E2), the Digital Rack Mount Reward Control Module (5-RLD-D1) and the Free Standing Digital Control 

Module (5-RLD-D2). The dispenser comes with its own bottle for liquids, a sonalert activated from the control panel, 

and the quick acting solenoid. The normal/drain selection switch is located on the front of the dispenser unit. The drain 

switch setting flushes the system for cleaning. All components are mounted on a chemical resin board to facilitate easy 

cleaning and sanitizing. This unit is designed to either hang on the wall or to sit on a shelf. When hanging, unscrew the 

shelf support from underneath and use the hanger bracket on the back for mounting on the wall. Included with your 

order is approximately 6 inches (15.2 cm) of 1/8” (3.3mm) Tygon® tubing and ten feet (3 meters) of 1/16” (1.5mm) 

Tygon® tubing to connect to the Mouthpiece. 

5-RLD-00A 

Mouthpiece (Sipper Tube) 

This Mouthpiece (sipper tube) can be used with both our Liquid Reward Systems (5-RLD-E1, 5-RLD-E2, 5-RLD-D1 

and 5-RLD-D2). The sipper tube is made from stainless steel tubing with a specially molded, non-toxic mouthpiece. It 

is designed to prevent the system from draining through any sucking action on the part of the primate. When the liquid 

is dispensed, the droplet will hang just at the end of the sipper tube briefly to permit the subject time to retrieve its 

reward. The sipper tube comes with the mounting block and clamp for attaching to the test chamber. We recommend 

that a different sipper tube be used with each subject. The delivery tip is 1.5 x 0.5 inches (3.81cm x 1.27cm). 

5-RLD-E2 

Free Standing Liquid Reward System 

This module has the same features as the Rack Mount Liquid Reward 

System 5-RLD-E1; however, the control panel components of this 

module are enclosed in a freestanding electronics box that can be 

placed up to 25 feet (7.6 meters) from the experimental setup. This 

Free Standing Control Module uses the same dispenser unit (5-RLD- 

E1B) as the rack mounted system. The Free Standing Control feature is 

ideal for use with the isolation chamber. Also included is one 

mouthpiece (sipper tube) 5-RLD-00A. 

Fig. 5.2 

Complete Liquid Reward System 

(5-RLD-E2) - Free-standing 

Control Module (left), Liquid 

Dispensing Unit (right) 

5-RLD-E2B 

Reward System Desk Top Control Module 

The Reward System Desk Top Control Module can be purchased separately. It is specially designed for liquid reward 

systems. This module has the same functioning abilities as the rack mounted module, except it lacks an audible reward 

signal in the box. It does, however, include the alarm switch, which will sound only from the dispenser unit when the 

switch is in the ON position. NOTE: Due to the lack of availability of some electronic components, this system may 

be discontinued. See newer models below. 

5-RRC-E01-25 

Reward System Remote Control 

The Remote Controller provides the operator more freedom of movement throughout the experimental setup. The push 

button remote control comes with a double banana plug that attaches to the front of the control module. The remote 

control function allows the operator to administer the reward from a more remote location, using a 20-foot (6m) cord. 


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5-RLD-E3 

Increased Volume Control System (Complete System) 

The Increased Volume Control System works well with either the liquid or slurry reward systems. When setting the 

center dial on the control panel to midrange, 50ms, the increased volume control system increases the liquid/slurry 

reward for the primates to approximately 20ml for every 100 times the reward button is pressed. The following table 

gives the approximate volume measurements of both the liquid and slurry reward systems when utilizing the increased 

volume control system. 

Switch Position Dispense Time Volume 

20ms 260ms 8ml 

25ms 320ms 10ml 

30ms 380ms 11.5ml 

40ms 500ms 16ml 

50ms 640ms 19.5ml 

60ms 750ms 23ml 

75ms 950ms 28ml 

95ms 1180ms 36ml 

These volumes were measured while using the standard 10-foot (3m) length of 1/16-inch (1.5mm) hose. The 

mouthpiece was 36 inches (91.4cm) below the reservoir solenoid valve, and the excess hose was coiled up at the same 

height as the valve. This model is made to order only. 

Note: the dispensed volumes, above, may be changed slightly by adjusting the height of the reservoir above the 

mouthpiece. 

5-RLD-E3-B 

Controller Only 

The Increased Volume Control System Control Module can also be purchased separately. It 

functions exactly the same as the control unit in the 5-RLD-E3. 


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NEW 

5-RLD-D1 

DIGITAL RACKMOUNT REWARD SYSTEM 

Our NEW digital rack mount universal reward control which is slated to replace the current 

Reward System 5-RLD-E1 opens new horizons in reward distribution systems. You will find 

a major improvement in its application in your neurophysiological and behavioral 

experiments. While generally developed for primate behavioral and neurophysiological 

experiments its basic purpose is to deliver liquid or slurry rewards to experimental subjects 

performing some kind of operant task; you may discover new data collection abilities as well. 

The 5-RLD-D1 comes as the basic unit or with a variety of options. 

Unlike the old systems, these new 

controllers are now being designed with 

microcontrollers for achieving better 

computer control. Experience better 

records for each of your research 

subjects on their liquid intake and for 

monitoring and recording the reward 

history. 

These programmable reward systems 

with improved reliability can enable 

investigators to perform and manage 

their experimental data in an easy and 

efficient way. 

Flexible, programmed and precise 

reward delivery enables new opportunities for conducting neurophysiological investigations into 

reward-related systems in the brain and for other behavioral applications involving precise control 

over the volume, timing, and type of primary reinforcement. 

A few of the salient features of this controller are: 

· Sophisticated controller to maximize the flexibility and ease of operation of the entire 

new reward system. 

· Suitable for experiments that require control of all three features of reward being 

delivered: quantity (volume), timing, and preference. 

· This new controller acts as a universal controller for all 3 kinds of dispenser units: liquid, 

slurry and pressure dispensers. 

· Greater precision and control of rewards and capability to produce patterns of rewards 

compared to older versions. 


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· Crystal controlled AVR microcontroller is employed for improved timings. 

· EMI filtering & Easier Voltage selection is done using the AC Entry Module. 

· This unit has an optional user-friendly GUI interface (programmed in C-builder), which 

can monitor, control, record, develop patterns and save the data collected from the reward 

controller via serial RS232 COM port or USB/RS232 converter. 

· The optional remote control is now cordless. The wireless RF reward option enables 

the user to activate the reward delivery from a distance within a range of 50m using a key 

fob. 

· This system is designed to deliver reward of volumes as small as 0.05ml and up to 

12.75ml. 

· Use your Controller to drive a customized dispenser for pellets or other devices. 

NOTE: When different (thicker or lighter) liquids are used, different viscosity liquids tend to 

be delivered at very different rates. The amount of reward dispensed when a water reward is given 

for 20 milli-secs will not be same as the amount dispensed for applesauce for that particular time. In 

order to have greater control over the volume of rewards dispensed, calibration tables have been 

introduced into our controller. 

Certain classes of experiments require greater and more careful control of volume and 

timing. For such experiments, Optional Volume GUI software is available for an additional price. 

It has the capability to store calibration tables and allows the user to deliver rewards of small and 

precise volumes. This GUI establishes a sophisticated user interface. 

The complete system includes the Control Module, the Dispenser Unit and a Sipper Tube. As 

with the 5-RLD-E1, Control Modules, Dispenser Units and Mouth Pieces (Sipper Tubes) may be 

purchased separately. 

5-RLD-D2 

FREE STANDING DIGITAL REWARD SYSTEM 

The Free Standing Digital Reward System has a Control Module that can be placed on any desk, lab 

bench or shelf and has the same features as the Rack Mount Control Unit. The Controller can be 

placed up to 25 feet (7.6 meters) from the experimental setup. The Dispenser Unit and the Sipper 

Tube included with this system are the same as the Unit in the 5-RLD-D1. This unit is ideal for use 

with our Iso-Chamber in Section 8 of our catalog. The same options are available with this unit as 

with the 5-RLD-D1 System including the Volume GUI and the Wireless RF with the Key-Fob 

activation. 


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5-RPD-M1 

Pressure Reward System 

The Pressure Reward System (5-RPD-M1) is a complete 

reward-system compatible for both liquid and slurry type of 

rewards. It has been custom made for the research going on 

in NIH Laboratory of Systems Neuroscience. 

This system is far more accurate than the gravity fed 

Reward Systems, as the reward dispensed is pressure 

controlled and has all the control parameters set by a 

computer, which is interfaced to this system. The 5-RPD 

Dispenser is designed to deliver small, precise volumes of 

liquid/slurry foods to the research subject (animal). This system overcomes many of the limitations 

of earlier dispensers, like susceptibility to suction created by the research subject. 

The Dispenser has three components: 

Features 

5-RPD-M1A02 

CONTROL UNIT 

User interface, power supply, & connections to computer 

RESERVOIR UNIT 

Refill bottle, air pressure control 

SOLENOID 

Mounts near animal and provides the fluid output 

· Delivers different fluid volumes under computer control 

· Direct selection of reward volume using stored tables for each fluid 

· Pressure driven fluid chamber and remote valve operation for precise volume control 

· LCD and web user interfaces for easy programming and operation 

· Can be programmed to deliver a reward every N seconds. 

· Counts rewards 

· > 350 ml reservoir capacity 

· Handles thick fluids (e.g., apple sauce). 

· Microprocessor controller can be easily reprogrammed for new features 

It uses a regulated pressure of air for dispensing the slurry/liquid reward. The controller of this system is 

equipped with a programmed RCM microprocessor that interfaces to a computer. Hence, it enables you to 

select different features from the controller. 

This system can be customized for your research requirements. The Control-Unit has Ethernet, 

Serial, and Digital Input connections. The Ethernet connection is 

used for the Web interface. It also provides the feature of ‘Free 

Rewards’, which enables the user to deliver one reward every “N” 

seconds. Unlike other dispensers, the solenoid is mounted near the 

animal ensuring accurate amounts of reward delivery. Amount of 

reward dispensed is controlled by the solenoid. Along with the 


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Dispenser Unit, the complete Pressurized Reward System also includes the 5-RPD Controller and a 

mouthpiece (sipper tube). 

5-Spare Parts 

1.1.1.1 Section 5 Reward Systems 

5-RLD-00A Mouthpiece, with Block for Reward System Sipper Tube 1 

Block 1 

5-RLD-31119 Reward System Solenoid 1 

5-RLD-TUB Tubing 10 Ft. 1 

5-RLD-E2C4 Connector Cable (5 Pin) 25 Ft. 1 

5-RLD-BTL Bottle Assembly w/Fittings 1 


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Section 6 – Implant/Alignment Devices & Surgical Aids 

Stereotaxic Alignment Tool 

Fig. 6.1 is shown with the pointer attached. The 

stem for this tool is used to hold the SS cap to 

position the recording chamber. The Centering 

Device shown to the lower right allows you to set 

up the manipulators at 0, and to mark the positions 

on the skull. 

Figure 6.1 

Stereotaxic Alignment Tool 

Stereotaxic Alignment Tools 

Be sure to specify the diameter you require to fit your Stereotaxic holder if it is different than the shank sizes 

listed below. Call for pricing of other sizes. 

6-YSA-SET1S 

Stereotaxic Alignment Tool Set # 1S, Stainless Steel Cylinders 

This set includes the following: 

• Alignment Tool for Head Holder on head (6-YST-S1A) 

• Alignment Tool for Cylinders (6-YSC-S2S) 

• Centering Device (6-YST-S3) 

• Pointer (6-YST-S4) 

• Grid Alignment Tool (6-YSG-S1). 

NOTE: If using Head Holder on the head 6-FHP-S6, please specify set 6-YSA-SET6S or if using Head Holder on the head, 6- 

FHP-S4, please specify set 6-YSA-SET4S. 

6-YSA-SET1M 

Stereotaxic Alignment Tool Set #1M, MRI Style Cylinders 


• Alignment Tool for Head Holder on head (6-YST-S1A) 

• Alignment Tool for Cylinders (6-YSC-S2J) 



• Grid Alignment Tool (6-YSG-S1) 

NOTE: If using Head Holder on the head 6-FHP-S6, please specify set 6-YSA-SET6M or if using Head Holder on the head 6- 

FHP-S4, please specify set 6-YSA-SET4M. 


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6-YSA-SET2S 

Stereotaxic Alignment Tool Set # 2S, Stainless Steel Cylinders 


• Alignment Tool for the Head Post (6-YST-S2) 

• Alignment Tool for Cylinders (6-YST-S2S) 



• Grid Alignment Tool (6-YSG-S1) 

6-YSA-SET2M 

Stereotaxic Alignment Tool Set #2M, MRI Style Cylinders 

This set includes the following 

• Alignment Tool for the Head Post (6-YST-S2) 

• Alignment Tool for Cylinders (6-YSC-S2J) 

• Centering Device (6-YSC-S3) 


• Grid Alignment Tool (6-YST-S1). 

6-YST-XXX 

Stereotaxic Alignment Tool for Head Holder on Head and Head 

Post 

The Alignment Tool facilitates the location and alignment of the Head Holder on the Head or the Head Post on the chair. 

These tools are required for consistent and repetitive alignment from one animal to another. 

Catalog No. Works With Part Name Size Material 

6-YST-S1A 6-FHP-S1 Cylinder Type 12.7 mm 8” Long x 8.0 mm Dia Shank 303 Stainless Steel 



6-YSP-S2 6-FHP-S2 Post Style 9.5 mm 8” Long x 8.0 mm Dia Shank 303 Stainless Steel 

The Stereotaxic Pointer threads into all the devices, listed above, except for the 6-YSP-S2. The Pointer is used with the 

Centering Device 6-(YST-S3) to find the fiducial point for positioning these devices. The 6-FHP-S2 requires a 6-FHP- 

SP for this holder and fits on the 6-YSP-S2. 

Figure 6.2 

Stereotaxic Alignment Tool for Head Holder on Head 

(6-YST-S1A), shown with a Head Holder on Head (6-FHP-S1) 

6-YSC 

Stereotaxic Alignment Tools for Cylinders 

The YSC alignment tools are used to position the recording chambers in an absolutely vertical orientation to facilitate 

accurate coordinate mapping of cell position. The top of the chamber fits into the cup of the alignment tool and is held by 

the three screws. Prior to installation, exact coordinates for the center should be established. 


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6-YSC-S2S 

The 6-YSC-S2S is intended for use in installing the Stainless Steel Recording Chamber. 

6-YSC-S2J 

When mounting CILUX adapters, it is preferable to use the 6-YSC-S2J. 

If you have the 6-YSC-S2S and wish to mount the CILUX chambers, you can use the adapter on the CILUX chamber, 

which will fit the S2S alignment tool. 

Catalog No. Works With Part Name Size Material 

6-YSC-S2S 6-IAC-S0 /6- IAC-SA-XX Recording Chambers, SS 

6-YSC-S2J 6- IAM-J0, 6- ICO-J0, XX Recording Chambers, CILUX 

8” (20.32cm) long x 8 mm 

Dia Shank 

8” (20.32cm) long x 8 mm 

Dia Shank 

Stainless Steel 

Stainless Steel 

Figure 6.3 

Stereotaxic Alignment Tool for Cylinders, 

With a SS Cylinder (6-YSC-S2S). 

6-YST-S3 

Stereotaxic Centering Device 

This device fits between the ear bars and provides a centering setup in your Stereotaxic for aligning the reference for all 

manipulators. This is used in conjunction with the Stereotaxic Pointer (6-YST-S4) and/or the 6-YST-S1A, S6A, S4A 

series. 

6-YST-S4 

Stereotaxic Pointer 

The Stereotaxic Pointer is made from 303 Stainless Steel. It fits in the end of the 6-YST-S1, or the 6-YSC-S2 if the cup 

is removed. 

6-YSCT-AF4 

Stereotaxic Dual Axis Alignment Pointer 

This tool can be placed at compound angles to the skull. Anterior/Posterior and lateral adjustments can be made using 

graduations of 2 degrees. The stem portion of this device can be used with the cylinder alignment cup or the pointer 

device. It can also be used to mount a Kopf® microdrive on the 8 mm diameter. 


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Fig. 6.4 Stereotaxic grid 

alignment tool, the grid, 

and alignment shaft. 

6-YSG-S1 

Stereotaxic Grid Alignment Tool 

The Grid Alignment Tool is used with the 6-YST-S1A to provide accurate Anterior/Posterior alignment when installing 

the Standard Grid during surgery. 

6-YSG-S2 

Stereotaxic Offset Grid Alignment Tool 

Use this device with the 6-YST-S1 to provide accurate Anterior/Posterior alignment when installing the Offset Grid 

during surgery. 

6-YSR-S1 

Stereotaxic Grid Alignment Rod 

The Grid Alignment Rod includes the plug that fits the 6-YSG-S1 and a 6-inch rod for general alignment of the Grid (6- 

YGD-D1 or 6-YGD-J1) on the head while the subject is awake; but held in the chair (Head Holder). Not recommended 

for accurate Anterior/Posterior mapping. 

X-Y Stage with Chamber and Grid Assembly 

3-MMK-A1 

3-MNJ-S01 

6-YNS-S1A 

6-YGD-D1 

6-IAC-S0 

X-Y Stage 

X-Y Stage Positioner Ring 

Grid Adapter and Positioner 

Grid 

Recording Chamber 


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HEAD HOLDER POSITIONERS FOR CHAIRS 

Head Holder Positioners for chairs are the connecting devices between the top plate, top bar, or audio post on 

your chair and the head holder on the primate subject’s head. This devise limits head movement and arranges 

the head in a repeatable position each time the subject is placed in the chair. 

Top Plate Top Bar Audio Post MRI Chair 

Head Holder Chair Positioners are available in the following four styles: 

· Three-Part Head Holder Positioner (6-FHC-Sx) – use this option with chairs that have a top plate 

· Universal Head Holder Positioner (6-FHB-Sx) – (two parts) use this option with chairs that have a 

top bar 

· Universal Head Holder Positioner (6-FHB-S2-Audio)- (two parts) use this option with chairs that 

have an audio post 

· Head Holder Positioner for MRI Chairs (6-FHD-J9) – use with the horizontal MRI Chair (1-CCM- 

CHAIR). 

· Swivel Head Holder Positioner (6-FAC-XX-X) – swivel head for use with most style chairs, 

including those with top bars, top plates, or audio posts. 

Figure 6.6: Swivel Head Holder Positioner (6-FAC-SA) 

This adjustable devise allows for a far greater range of positions than 

most other head holder positioners. It swivels fore and aft 180°, as 

well as side-to-side rotation. 

Three-Part Head Holder Positioner 

The Three-Part Head Holder Positioner on the Chair (6-FHC-Sxx) is designed to provide absolute 

anterior/posterior (A/P) alignment with the centerline of the Chair. 


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Figure 6-7: 6-FHC-S2CD, Three-part head 

holder positioner for use with post style head holders and chairs that have a top plate 

The above Head Holder Positioner on the Chair (6-FHC-Sxx) 

model consists of three major parts: 

· Threaded Top Shaft (6-FHC-S2P) 

· Sleeve Coupling (6-FHC-S2C) 

· Bottom Shafts (four options) 

- 6-FHC-S2A (large) – for use with cylinder 

style head holders 

- 6-FHC-S6A (medium) – for use with cylinder style head holders 

- 6-FHC-S4A (small) – for use with cylinder style head holders 

- 6-FHB-S2B – for use with post style head holders 

The above three parts fit together and function as follows: 

The sleeve coupling joins the bottom shaft to the threaded top shaft, providing repeatable positioning and firm 

alignment. The four bottom shaft options permit the use of the three-part head holder positioner with a 

variety of head holder types and sizes. 

Figure 6-8: 

6-FHC-S2C 

Sleeve Coupler 

Figure 6-10: 

(6-FHB-S2B) Bottom Shaft 

for 

Universal 

Head Positioner, connects 

Head Post (6-FHP-xx, series) 

with the 

The Threaded Top Shaft (6-FHC-S2P) allows for vertical adjustment and eye level alignment. Fore and aft 

the slot in the top plate of your primate chair provides adjustment. Measurements for the eye to screen 

distance are measured from the front edge of the side head support on your chair. The front edge of the eye 

should approximate the plain of the front edge of the two side head supports. See the table below for part 

numbers. 


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Universal Head Holder Positioner 

The Universal Head Holder Positioner on the chair (6-FHB-xx) is used on the chairs with a top bar (6-FHB- 

Sx) and chairs with an audio post (6-FHB-S2-Audio). 

At time of order, please specify whether you will be using a top bar chair or an audio chair. The size and 

components of the Universal Head Holder Positioner will vary, depending on the type of chair that will be 

used in conjunction with the Universal Head holder Positioning System. 

There are two top-bar primate chair models available, both of which are compatible with the Universal Head 

Holder Positioning System. The original model (6-FHB-S2) consists of a Hollander cross fitting, which slides 

onto the 1.06” (2.69cm) top bar (1-CCx-9B) and secured with setscrews. This allows for rotation, but a 

limited amount of tilt, for and aft, of the head. The universal head holder positioner provides fairly accurate 

A/P alignment. 

The newest model of Adjustable Head Holder Positioners (6-FAC-SA) replaces the Hollander cross fitting 

with a top bar positioning block, which is attached to the 1” (2.54cm) top bar of the primate chair. Both the 

universal head holder positioners and the swivel head holder positioner attach directly to the block (as 

pictured below). The advantage of the using the block, rather than the Hollander cross fitting, is that no 

screws are required to hold the block in place. The setscrews of the Hollander cross fitting can cause 

indentations in the bar, making repositioning difficult. 

Note: The top bar positioning block uses a 1” (2.54cm) diameter top bar, and the Hollander cross fitting uses 

a 1.06” (2.69cm) diameter top bar. Both the universal head holder positioner and the swivel head positioner 

may be used in conjunction with either the Hollander cross fitting or the top bar positioning block. 

Fig. 6.11-6.12: Top view of primate chair with top bar positioning 

block and swivel head holder positioner. 

The Universal Head Holder Positioner (6-FHB-S2) includes 

the following: 

· Hollander Cross Fitting or Top Bar Positioning Block 

· Universal Top Shaft (a vertical rod, 6-FHB-S2A) 

· Bottom Shaft, plus assorted screws and Allen 

wrenches that come with the complete assembly. Figure 6-92: Universal Head Holder Positioner 

Figure 6-91: 6-FHB-S2A Top Shaft for Universal Head Holder Positioner on the 

chair 


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PLEASE NOTE THE FOLLOWING: 

· The bottom shaft of this unit can be ordered to fit either the cylinder style head holder on the 

head or the head post (post style head holder) on the head. 

· The horizontal top bar and the side head support plates are available in the primate chair 

section (section 1) of this catalog. 

· To ensure that alignment is consistent from animal to animal, the head holders (both post and 

cylinder style) must be aligned in surgery using a Stereotaxic frame. 

· Universal Head Holder Positioners may also be designed for use with an audio post on a 

primate chair (6-FHB-S2-Audio). At the time of order, please specify whether you will be using 

a chair that comes with a top bar or audio post. When using the Universal Head Holder 

Positioning System in conjunction with an audio chair, neither a Hollander cross fitting nor a 

top bar positioning block is necessary. Furthermore, the size of the positioning system is 

tailored to the specific type of chair that will be used in the investigations. 

MRI Head Holder Positioners 

The MRI Head Holder Positioner for primate chairs (6-FHD-J9) is a two-part unit made entirely from 

CILUX. Unlike those made from stainless steel or brass, head holder positioners made from CILUX produces 

no shadow in MRI imaging. Our CILUX head holder positioners are recommended for MRI use with either 

conscious/awake or anaesthetized primates in the MRI only. This unit only attaches to the 6-FHP-J9 MRI 

Head Holder on head model. 

Fig. 6.13 MRI head holder positioner (positioned on chair) 6-FHD-J9 

With MRI head holder (positioned on head) 6-FHP-J9 

Adapting Components 

Listed below are some adapting components, which will enable exchange between the cylinder style and the 

universals style head position on the chair. 

Note: There are NO exchangeable components with the MRI style head holder positioner. 

6-HEAD HOLDER POSITIONERS ON CHAIR: 

The following models are designed for use on all chairs with side head supports and top plate or with a top 

bar. The head holder positioners allow for vertical adjustment. The design also incorporates a system that 

provides absolute rotational resistance. The 6-FHC-S2, 6-FHC-S4, 6-FHC-S6, and the 6-FHB-S2 models fit 

standard, small, and large sized chairs. 6-FHC-S5 fits Mini Chairs only. 


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Three Part Positioners for Cylinder Style Head Holders for Chairs with Top 

Plates 

Part Number Product 

Compatible Head 

Holder Fits Chairs Material 

6-FHC-S2 Chair Head Positioner 6-FHP-S1 Sm, Med, & Lg Stainless Steel 



6-FHC-S5 Chair Head Positioner 6-FHP-S4/S5 Mini Chair Only Stainless Steel 

Three Part Positioner Components 


Product 

Part Number 

Holder Fits Chairs Material 

6-FHC-S2P Head Positioner Top Shaft 6-FHC-S (2,4,6) Sm, Med, Lg Stainless Steel 

6-FHC-S2C Head Positioner Sleeve Coupler Fits All Models Fits FHC Models Stainless Steel 

6-FHC-S2A Head Positioner, Bottom Shaft 6-FHP-S1 Fits FHC Models Stainless Steel 



Two Part Positioner for Head Posts Fits Chairs with Top Bars 

Part Number 

6-FHB-S2 


Product 

Material 

Holder 

Universal Head Positioner, complete 6-FHP-S2, B2, X2 Aluminum/ Stainless Steel 

Two Part Positioner Components 

Part Number 

Product 

Compatible Head Compatible 

Holder 

Chairs 

Material 

6-FHB-S2A Universal Vertical Bar (top shaft only) Fits All Models Attaches to Chair Aluminum 

6-FHB-S2B Adapter Shaft for Head Post on Head 6-FHB-S2A Fits the 3/8” Posts Stainless Steel 

6-FHC-S2B-CX Adapter Shaft for Head Cylinder on Head (6-FHP-S1) Sm, Med, & Lg Stainless Steel 



6-Adjustable Head Positioner 

Part Number 

6-FAC-SD 

6-FAC-FD-1 

6-FAC-SB-R2 

6-FAC-SP 

6-FAC-SS 

6-FAC-S1 

6-FAC-S2 

Description 

Top Shaft for Audio post 

Top Shaft for (6-FHB-RA-1) 

Top Shaft for the Universal Head Post (6-FHB-S2) Chairs with top bars 

Top Shaft for Chairs with Top Plate 

Compass Attachment, Swivels Head Positioner from “0” to 90degrees in two directions 

Bottom Shaft only; for head holder on head parts (6-FHP-x1) large Cylinders 

Bottom Shaft only; for Head Post on head (6-FHP-x2) Head Posts 


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6-FAC-S4 

6-FAC-S6 

6-FAC-SB-S1 

6-FAC-SB-S2 

6-FAC-SB-S4 

6-FAC-SB-S6 

6-FAC-SD-S1 

6-FAC-SD-S2 

6-FAC-SD-S4 

6-FAC-SD-S6 

6-FAC-SP-S1 

6-FAC-SP-S2 

6-FAC-SP-S4 

6-FAC-SP-S6 

Bottom Shaft only, for Head Holder Head Parts (6-FHP-S4) small cylinders 

Bottom Shaft only, for Head Holder Head Parts (6-FHP-S6) medium cylinders 

Adjustable Head Holder Positioner for Universal Head Post and (6-FHP-x1) large cylinders 

Adjustable Head Holder Positioner for Universal Head Post and (FHP-x2) head posts 

Adjustable Head Holder Positioner for Universal Head Post and (6-FHP-S4) small cylinders 

Adjustable Head Holder Positioner for Universal Head Post and (6-FHP-S6) medium cylinders 

Adjustable Head Holder Positioner for Audio post and (6-FHP-x1) large cylinders 

Adjustable Head Holder Positioner for Audio post and (FHP-x2) head posts 

Adjustable Head Holder Positioner for Audio post and (6-FHP-S4) small cylinders 

Adjustable Head Holder Positioner for Audio post and (6-FHP-S6) medium cylinders 

Adjustable Head Holder Positioner for Top Plate and (6-FHP-x1) large cylinders 

Adjustable Head Holder Positioner for Top Plate and (FHP-x2) head posts 

Adjustable Head Holder Positioner for Top Plate and (6-FHP-S4) small cylinders 

Adjustable Head Holder Positioner for Top Plate and (6-FHP-S6) medium cylinders 

Interlocking MRI Style Chair Positioner 

Part Number 

Product 

Compatible 

Head Holder 

Material 

6-FHD-J9 

Two-part Head Holder Position for primate chairs, 

designed for conscious/awake MRI use only 

6-FHP-J9 

CILUX 

6-FHD-J9 with 6-FHP-J9 

Head Holders on Head (6-FHP) 

Head Holders that are positioned on the primate subject’s head are designed for used with the Head 

Positioners on the primate chair. The Head Holders are available in two models: Cylinder Style and 

Post Style. Head Holders may be ordered in variety of materials and sizes to meet your research 

needs. 

Cylinder Head Holders 

The Cylinder Style Head Holders, cylindrical in shape are designed to securely attach to the skull 

with dental acrylic and bone screws. An optional transverse rod is included for particularly active 

primate subjects. For added security, this rod fits through two holes at the base of the Head Holder 

where it is attached to the acrylic. The upper end of the cylindrical Head Holder attaches to the 

Head Holder Positioner on the chair. 


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Because the Cylinder Style Head Holders has a broader base then the Post Style Head Holders, there 

may be better adhesion to the dental acrylic on the skull. This style is also shorter than the post 

style, thus less obtrusive. 

The Cylinder Style Head Holder is available in the following materials: 

· 316 Stainless Steel 

· Titanium 

· CILUX – recommended for MRI use 

· PEEK – recommended for MRI use 

(The use of titanium for MRI studies reduces, but does not eliminate the broad shadowing in the MRI field). 

The Cylinder Style Head Holder is available in the following sizes: 

· Small 

· Medium 

· Large 

We highly recommend the use of our Stereotaxic Alignment Tools to facilitate fixing the Head 

Holders in the proper position. 

Head Posts 

The Head Post provides slightly a different method of positioning the primate subject’s head in the 

same orientation each time he/she is placed in the tasking center. One end of the post can be 

securely attached to the head with dental acrylic and bone screws, and the other end easily inserts 

into the head positioner on the chair. Unlike the cylinder style, the post style does not require the 

primate to be crouched into position when connecting the head holder on the head to the head 

positioner on the chair. The design of the head post allows the head post to simply be clamped into 

the concave cavity on the side of the head positioner. 

Post style head holders are is available in 316 stainless steel and titanium. 

Note: Using titanium for MRI studies reduces, but does not eliminate the broad shadowing of metals 

in the MRI field. 

PEEK Head Holders, Cylinder Style 

Crist Instrument Co., Inc. is now offering a new MRI compatible product in addition to our CILUX 

made products. We have developed Head Holders made from PEEK. PEEK is a high temperature 

resistant engineered thermoplastic with excellent chemical and fatigue resistance and thermal 

stability. 

Advantages of Peek: 

‣ Very high continuous working temperature – mechanical properties are retained even at 

temperatures in excess of 250°C (482° F) 

‣ Very high heat distortion temperature – HDT is 160° C (320° F) 

‣ Exceptional chemical resistance – Peek is insoluble in all common solvents and is extremely 

resistant to attack by a very wide range of organic and inorganic chemicals 


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‣ Excellent hydrolysis resistance – Peek has an excellent resistance to hydrolysis in boiling water and 

superheated steam at temperatures in excess of 250° C (482° F). 

‣ Good radiation resistance – Peek can absorb more than 100 M rads of irradiation with no 

significant reduction in mechanical properties and it exhibits exceptional resistance to high doses of 

gamma radiation. 

‣ Outstanding wear and abrasion resistance – Peek has excellent wear and 

abrasion resistance characteristics with low coefficient of friction and high limiting 

PV properties 

6-HEAD HOLDERS ON HEAD: 

Figure 6-15: FHP Head Holders on Head 

FHP-S4; FHP-S6; FHP-S1 

Cylinder Type Head Holder Sets 

Catalog No. Product Size Material 

6-FHP-S1 Head Holder on Head (Cylinder Type) 1/2” id (12.7 mm) T316 Stainless Steel 



6-FHP-X1 Head Holder on Head (Cylinder Type) 1/2” id (12.7 mm) Titanium 



6-FHP-J1 Head Holder on Head (Cylinder Type) 1/2” id (12.7 mm) CILUX 



6-FHP-K1 Head Holder on Head (Cylinder Type) 1/2” id (12.7mm) PEEK 

6-FHP-K1-A Head Holder on Head (no set, just cylinder) 1/2” id (12.7mm) PEEK 

6-FHP-K6 Head Holder on Head (Cylinder Type) 3/8” id (9.5 mm) PEEK 

6-FHP-K4 Head Holder on Head (Cylinder Type) 9/32” id (7.1mm) PEEK 

Note: cylinder type head holder sets include the following: 

· Stainless steel ring 

· Screw 

· Cylinder (K#-A) 

· Stainless steel rod for stainless steel cylinder, nylon rod for all other cylinder materials 


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· Allen wrench for screw 

PLUGS (HP-01P, HP-04P and HP06P) 

This device is a plastic plug that fits into the Head Holders on the Head to prevent dirt and other debris from 

getting inside the cylinder. Plugs are also available to fit the Head Holders used with MRI PRODUCTS. Call 

for price quotes. 


6-FHP-01P Plugs for Large Head Holder on Head with Screw 1/2” od (12.7 mm) CILUX 

6-FHP-06P Plugs for Medium Head Holder on Head with Screw 3/8” od (9.5 mm) CILUX 

6-FHP-04P Plugs for Small Head Holder on Head with Screw 9/32” od (7.1 mm) CILUX 

Retaining collars 

Catalog No. Product Used with Material 

6-FHP-SC1 Stainless Steel Retainer Collar 6-FHP-J1 or 6-FHP-KI Stainless Steel 

6-FHP-SC6 Stainless Steel Retainer Collar 6-FHP-J6 or 6-FHP-K6 Stainless Steel 

6-FHP-SC4 Stainless Steel Retainer Collar 6-FHP-J4 or 6-FHP-K4 Stainless Steel 

6-HEAD POSTS 

Figure 6-16: FHP Head Posts FHP-X2; FHP-B2; FHP-S2 


6-FHP-S2 Head Post on Head 3/8” od (9.5 mm) T316 Stainless Steel 

6-FHP-B2 Head Post on Head 3/8” od (9.5 mm) Brass 

6-FHP-X2 Head Post on Head 3/8” od (9.5 mm) Titanium 


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6-MRI HEAD HOLDER for MRI CHAIRS ONLY 

Catalog No. Product Fits Material 

6-FHP-J9 

Interlocking Head Holder on Head – MRI Use 6-FHD-J9 or 6-FHD- 

CILUX 

Only 

K9 

6-FHP-K9 

Interlocking Head Holder on Head – MRI Use 6-FHD-J9 or 6-FHD- 

PEEK 

Only 

K9 

6-GUIDE TUBES & SPACERS 

Guide tubes from Crist Instrument Company may be cut to fit your specified lengths. Our guide tubes are 

made from 23TW gauge Stainless Steel or Titanium with flared tops for increased ease when inserting 

electrodes. For your convenience, a plug is included. 

Price is determined by guide tube size and quantity. 

Stainless Steel Guide Tubes 

6-YGTS-XX 

6-YGTSA-XX 

6-YGTSL-XX 

Guide Tubes, SS, to 60 mm 

Guide Tubes, SS, custom cut to longer length (over 60 mm) 

Guide Tubes, SS, with Larger Bore (please specify size) 

GUIDE TUBE SPACERS 

6-YGSS-23 - Stainless steel spacers come in a standard length of 23 mm. If longer 

spacers are required, we can custom cut them for you. Shorter spacers also are available. 

(Please Note: For each mm change in size, $0.25 will be added to total price.) 


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GRID ADAPTERS 

“Smokestacks” 

Grid adapters hold grids rigidly in position. The adapters can be easily removed and replaced in the exact 

position in order to allow for cleaning the dura. A pin on the cylinder and slot on the adapter aligns the grid. 

Four slots on adapter allow for rotation of grid. A fourfold increase in penetration sites is created with each 

style grid. 

6-YNS-S1A 

Stainless Steel Grid Adapter and Positioner for Stainless 

Steel Chambers (Compatible with Stainless Steel Chambers) 

Figure 6-17: 

Stainless steel “smoke stacks” grid adapters 

6-YNS-J1A 

6-YNP-S3 

CILUX Grid Adapter & Positioner For Stainless Steel Chambers 

(The same as the 6-YNS-S1A except the material is CILUX.) 

Stainless Steel Grid Adapter & Positioner, for Pin Style MRI 

Chambers or MRI Style Chambers with opposing nylon screws 

This Stainless Steel unit provides the interface between the recording cylinder and a Narishige Microdrive 

model MO95 without the X-Y Stage Positioner Ring (3-MNJ-S01). This unit fits either the MRI style 

chambers, which have opposing nylon screws, or the Pin Style chambers. When the adapter is removed, a 

new style cap (6-IP1-J1) should be installed. If, however, you wish to leave the adapter in place, the old style 

caps will fit the top of the adapter. 

6-YNP-J3 

CILUX Grid Adapter & Positioner, for Pin Style MRI Chambers 

and the MRI Style Chambers with opposing nylon screws 


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This Grid Adapter Positioner is the same as the 6-YNP-S3 and is used in the same manner. The only 

difference is the material. When leaving the adapter in place, use the flat one side CILUX cap. 

6-YSS-SU1 

Adapter for Cat Chambers, matches with 6-ISC-XX 

This unit is Stainless Steel. It also has four (4) slots for rotational fixing and functions much the same as the 

6-YNP-S3. When selecting the adapter for cats, the correct chambers, grid, and caps must be selected. 

NOTE: The 6-YNP-S3 and the 6-YNP-J3 replaces the 6-YNS-S2. They will fit 

on both MRI Chamber Styles. 

6-RECORDING CHAMBERS 

Figure 6-17: Pictured above, Stainless Steel Angle Recording Chamber, IAC-SA. At 

right, the IAM-JA-XX “ CILUX” Angle Chamber, Pin Style. 

Crist Instrument Company's recording chambers are designed to provide vertical penetrations along the 

curvature of the skull. As you move outward from the centerline, the recording chamber's degree of angle 

should be greater to accommodate. Recording chambers are available with varying degrees of angles, ranging 

from 0 to 70 degrees. 

Recording chambers angled at "0" degrees are available in stock. Angled recording chambers can be custom 

designed to the degree you specify. Please include the angle sizes when ordering. We suggest not ordering in 

less than two degree increments. 

Our recording chambers are available in a variety of sizes, shapes, and materials: 

‣ Stainless Steel chambers are excellent when strength and durability are essential. However, 

because Stainless Steel recording chambers are heavier than those made from products like 

Titanium and CILUX plastic, you may feel that use with Stainless Steel chambers on small 

subjects is limited. Furthermore, Stainless Steel cannot be used for research investigations 


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that include MRI testing. Products that are readily available in Stainless Steel are listed on 

the next page. 

‣ Titanium Chambers have been found to be very tissue compatible. Titanium is a strong, hard, 

and lightweight material. Although, Titanium may be used in the MRI, it does a cast a 

shadow, which may reduce the ability to visualize areas located close to the Titanium 

Chamber. Titanium Chambers are featured on the following page. 

‣ CILUX Chambers, an innovation by Crist Instrument Company, were created in an effort to 

find a material that possessed strength, durability, and tissue compatibility that could be used 

in MRI testing and could effectively be sterilized. This lightweight plastic suitably meets 

these all these requirements. Our CILUX recording chambers work well with animal subjects 

of most sizes. CILUX does not absorb water or other fluids readily, and therefore it does not 

tend to miss-shape, as many plastics do. Look at the Chambers on the next page for your 

choices made from “CILUX”. 

MORE ON RECORDING CHAMBERS 

“0” DEGREE RECORDING CHAMBER (IAC AND ICO) SERIES: 

Designed for use with the Narishige Model MO95B Hydraulic Drive with the “X - Y” Manipulator Base, it 

serves as the entry port to the brain. The 6-IAC-S0 does not require the cutting of the skull for screw slots to 

facilitate attachment; like the 6-FHP-S1, this device is mounted with a knurl set in the acrylic. This unit 

provides a positioning pin for use with the 6-YNS-S2, Chamber to Microdrive Adapter. This pin allows the 

removal and replacement (in exactly the same position) of the adapter with the Grid (6-YGD-D1) inside. This 

permits cleaning of the dura and flushing of the grid holes. 

Furthermore, the 6-YNP-S3 now has four slots allowing a 30 degree angle of rotation, tripling the number of 

penetration sites available to you with the standard grid and still allows the use of the Offset Grid (6-YGD- 

D2) for four times the penetration sites. Also the use of the Offset Grid will provide “X - Y” aligned 

positions. When using the 30/60-degree positions you must consider the angle and the strange pattern 

developed. 

ANGLE RECORDING CHAMBER (6-IAC-S-XX and 6-ICO-J-XX) 

SERIES: 

Identical to the IAC and ICO Series “0” Degree, except for its additional length on the long side of the angle. 

These chambers are custom cut to various angles to position the chamber on the outer periphery of the skull 

and still remain in the vertical axes. We can supply any angle up to 70 degrees per your request. When 

ordering this item, the angle you require must be specified in place of the two X’s at the end of the catalog 

number. Angle Chambers are available in Stainless Steel and non-magnetic materials. 

Pin Style Stainless Steel Chambers 

6-IAC-S0 Recording Chamber, “0” degree 

6-IAC-SA-xx Recording Chamber, 2 - 45 degree Angle 


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This model, made from Stainless Steel, has a positioning pin that allows exact repositioning of the grid in the 

chamber. 

6-IAM-J0 Recording Chamber, “0” degree Pin Style for MRI 

6-IAM-JA-xx Recording Chamber, 2 - 45-degree Angle Pin Style for MRI 

Pin Style Chambers used in the MRI are manufactured from CILUX or PEEK. This model has a positioning 

pin that allows exact repositioning of the grid in the chamber. If the adapter is left on for any length of time, 

your old standard cap can be used. Use the new matching cap with this product when the adapter is removed. 

This adapter can be removed with the manipulator still mounted. 

The advantage of the CILUX and PEEK Chambers is that they can be sterilized without absorbing water and 

misshaping, unlike many other plastics. CILUX and PEEK materials are also harder and threads are more 

slip resistant than many other plastics. 

This product can be purchased in its separate components or it can be purchased as a set. Sets include either a 

“0” Degree Chamber (6-IAM-J0) or an “Angle” Chamber (6-IAM-J2A-xx) with one matching cap 6-(IP1- 

J1) and a matching Adapter/Positioner (6-YNP-S3). 

6-MRI Style with Opposing Nylon Screws 

6-ICO-J0 

6-ICO-J2A-xx 

Recording Chamber,“0” degree 

Recording Chamber, 2 - 45 degree Angle 

NEW MRI Style w/opposing nylon screws 6-ICO-J2A-zz. Recording Chamber, 46 - 65 degree Angle NEW 

MRI Style w/opposing nylon screws. The CILUX chambers have an overall outside diameter of 1” (25.3 

mm). The inside diameter of the CILUX chambers is 3/4” (19 mm). 

The MRI Style chambers provide a lower profile and stronger construction. The Chambers are made from 

our new stronger CILUX. The advantage of the CILUX Chambers is that they can be sterilized without 

absorbing water and misshaping as many other plastics. It is also harder than many other plastics and threads 

do not strip as readily as in other plastic materials. If the Adapter is left on for any length of time, your old 

Standard Cap can be used. Use the new matching cap with this product when the Adapter is removed. This 

Adapter can be removed with the manipulator still mounted. This product can be purchased in its separate 

components or it can be purchased as a set. Sets include either a “0” Chamber (6-ICO-J0) or an “Angle” 

Chamber (6-ICO-J2A-xx) with one matching cap 6-(IP1-J1) and a matching Adapter/Positioner (6-YNP- 

S3). 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Figure 6-19: 6-ICO-J2A Recording Chamber and old style 6-YNS-J1A Grid Adapter. 

Note: the New Grid Adapters have slots as well as the cut away for the screws. 

Recording Chambers for Other Animals 

6-ISM-J-00 

Recording Chamber for Squirrel Monkeys 

6mm o.d. Specify 0 to 60 Degree angle, CILUX 

6-ISC-xx 

Recording Chamber for Felines 

Chamber is curved (form fitted), Stainless Steel. The o.d. on this chamber is approximately 

.750” and the i.d. is .630”. 

NOTE: Please remember that the “-S” and “-J” in the Chamber part number denotes the 

product material Stainless Steel and CILUX respectively. 

6-Recording Chamber Sets 

For your convenience, sets are available as defined below. They include the chamber 

with the angle you specify a matching cap and an adapter (“smokestack”) 

Catalog No. Product Material 

6-IAM-J2AS-0 Recording Chamber, SET, MRI Pin Style “0” deg Cilux 

6-IAM-JAS-xx Recording Chamber, SET, MRI Pin Style Angle deg Cilux 

6-ICO-J2AS-00 Recording Chamber SET, MRI “0” deg, w/ opposing nylon screws Cilux 

6-ICO-J2AS-xx Recording Chamber SET, MRI 2 - 45 deg. Angle with opposing nylon screws Cilux 

6-ICO-J2AS-zz Recording Chamber, SET, MRI 46 - 65 deg. Angle with opposing nylon screws Cilux 


Telephone: 301-393-8615 · FAX: 301-393-8618 



PEEK RECORDING CHAMBERS: BLANK AND ANGLE 


6-IAM-K2A-0 Recording Chamber, MRI Pin Style “0” deg PEEK 

6-IAM-KA-xx Recording Chamber , MRI Pin Style Angle deg PEEK 

6-YGD – GRIDS 

The Grid is used to align Guide Tubes for a straight and accurate penetration. Holes are 1 mm apart in a 

rectangular array within a 19 mm diameter. Accurate alignment is accomplished by 1 cm long guide holes. A 

Spacer is recommended to bring the Guide Tube Top (flared end) near the top of the Grid Cup. The Offset 

Grid is identical except the holes are offset .5 mm in one direction in the array. The direction of the offset is 

indicated by a missing hole near the perimeter of the grid. When used in conjunction with the Standard Grid 

(6-YGD-D1) it provides three times as many penetration points when the offset is rotated 90 degrees. 


6-YGD-D1 Grid, Standard w/ Pattern 1 mm o.c. 19 mm diameter x 40 mm tall Delrin 

6-YGD-D2 Grid, Offset, w/ Pattern 1 mm o.c. offset .5 mm 19 mm x 40 mm tall Delrin 

6-YGD-D1A Grid, Short Version w/ Standard Pattern 19 mm Dia x 19.5 mm tall Delrin 

6-YGD-D2A Grid, Short Version w/ Offset Pattern 19 mm Dia x 19.5 mm tall Delrin 

6-YGD-D1-DM Grid, w/ dye Markers, 4 markers at 90 degree intervals Delrin 

6-YGD-J1 Grid, Standard w/ Pattern 1 mm o.c. 19 mm x 40 mm tall CILUX 

6-YGD-J2 Grid, Standard w/ Pattern 1mm o.c. offset .5mm 19 mm x 40 mm tall CILUX 

6-YGD-J1A Grid, Short Version w/ Standard Pattern 19 mm Dia x 19.5 mm tall CILUX 

6-YGD-J2A Grid, Short Version w/ Offset Pattern 19 mm Dia x 19.5 mm tall CILUX 

6-YGD-BP Grid Base Plate Stainless Steel 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Plate provides an attachment point for guide tubes and electrodes that are to be implanted for long term 

chronic studies of a single site. (Cannot be used with Biela Microdrive System.) 


6-YGD-D1-XX 

Custom Angle Grids, up to 10 degrees, the same size and hole pattern as the 

standard grid 

Delrin 

6-YGD-J1-XX 

Custom Angle Grids, up to 10 degrees, the same size and hole pattern as the 

standard grid 

Cilux 

6-YGD-D3 

6-YGDIPI-J1 

6-YGDIPI-J2 

6-YGDIPO-J1 

6-YGDIPO-J2 

Flat Grid 

Grid Cap a unique combination of the standard grid pattern made directly in the 

cap, F Round 

Grid Cap a unique combination of the offset grid pattern made directly in the cap, 

F Round 

Grid Cap a unique combination of the standard grid pattern made directly in the 

cap, Flat Side 

Grid Cap a unique combination of the offset grid pattern made directly in the cap, 

Flat Side 

Cilux 

Cilux 

Cilux 

Cilux 

MINIATURE GRIDS 


6-RGDIPI-J1 Grid Cap for rat chambers or other small animals CILUX 

6-RGP-J1 Grid Plug fits into small chambers for rats or other small animals CILUX 

6-IPO & IPI CAPS 

Caps are made in two styles. IP0 works with the Stainless Steel Chambers, the 6-YNS-S1A Adapter and the 

“Old Style” GF Delrin Chamber styled like the Stainless Steel Chambers. The IPI fits the New MRI Style 

Recording Chambers. Caps made from Delrin, Polypropylene CILUX and Stainless Steel. The Delrin and 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Polypropylene are water sensitive and may distort if submerged for any length of time in liquid. We 

recommend you use only short-term liquid or gas sterilization for these materials. The CILUX material is 

substantially more resistant to water absorption. Stainless Steel Caps are significantly more durable; 

however, they are also much heavier. For smaller animals, the lighter weight materials are recommended. 

Caps are available in CILUX and Stainless Steel. They are designed to protect openings in the Recording 

Cylinders. They fit all cylinders; and also the 6-YNS-S1A when left in place with the Grid and Guide Tube 

(YGTS-SS and YGTSA-XX) for chronic studies. In addition, special caps are available for use with the Beila 

Microdrives that have been specially modified to fit inside the Grid cup for long-term chronic studies. 


6-IP0-J1 Caps, Flat one side Cilux 

6-IP0-S1 Caps, Flat one side Stainless Steel 

6-IPI-J1 Caps, Full Round Style for NEW MRI Cilux 

6-IPI-S1 Caps, Full Round Style for Stainless Steel Stainless Steel 

6-IRO-J3 Cap, fits Cat Chamber & Adapter Cilux 

CRANIAL IMPLANT FASTENERS & SELF TAPPING SCREWS 

We manufacture 2 styles of Cranial Screws. Cranial Implant Head Bolts are available in 3 types of materials 

and several different sizes to meet your exacting needs. Our Cranial Fasteners slip securely under the skull 

and are held in place with a double nut imbedded in dental acrylic. They are available in Stainless Steel, 

Titanium and “CILUX”. The titanium self-tapping screws thread into the skull and are available in two sizes. 

6-CRANIAL FASTENERS (HEAD BOLTS) - STAINLESS STEEL packaged in sets of 5 

6-YCI-06 Cranial Fasteners, w/nuts & washer, 

(Formerly YCX-01) 

6-32 x 1/2” (12.7mm long) 

6-YCI-06L Cranial Fasteners, w/nuts & washer, 6-32 x 5/8” (15.87mm long) 

6-YCI-06S Cranial Fasteners, w/nuts & washer, 6-32 x 7/16” (11.1mm long) 

6-YCI-08 Cranial Fasteners, w/nuts & washer, 8-32 x 5/8” (15.98mm long) 

6-CRANIAL FASTENERS (HEAD BOLTS) - TITANIUM packaged in sets of 3 or 5 (for sets 

of 3 add a -3 to your choice below; for sets of 5 add a -5 to your choice below. 

6-YCX-06 Cranial Fasteners, w/nuts & washer, 

(Formerly YCX-01) 

6-32 x 1/2” (12.7mm) 

6-YCX-06L Cranial Fasteners, w/nuts & washer 

6-32 x 5/8” (15.87mm) 

6-YCX-06S Cranial Fasteners, w/nuts & washer 6-32 x 7/16” (11.1mm) 

6-YCX-08 

Cranial Fasteners, w/nuts & washer, (Formerly YCX-02) 


Telephone: 301-393-8615 · FAX: 301-393-8618 



6-CRANIAL FASTENERS (HEAD BOLDS) - “CILUX” (packaged in sets of 5) 

6-YCJ-08 Cranial Fasteners, w/nuts & washer 8-32 x 9/16” 

6-YCJ-10 Cranial Fasteners, w/nuts & washer 10-32 x 5/8” 

6-YCJ-10L Cranial Fasteners, w/nuts & washer 10-32 x 3/4” 

6-YCJ-10S Cranial Fasteners, w/nuts & washer 10-32 x 9/16” 

6-YCJ-10P Cranial Fasteners, w/nuts & washer with reinforced head 10-32 x .800” 

6-YCJ-14 Cranial Fasteners, w/nuts & washer 1/4-20 x 5/8” 

6-SELF-TAPPING BONE SCREWS - 

TITANIUM packaged in sets of 3 or 5 

These screws have a Taper Thread and require a 

small wrench to tighten. 

Screws have a .104” thread 

diameter (2.6 mm) x .217” 

(5.5mm long) thread length 

and an overall length of 

.315” (8mm). For sets of 3 

add a-3 to your order 

selection as shown below or 

for sets of 5 add a -5 as shown. 

6-YCX-03-5 Bone Screws, Allen Head 

6-SPAW-3/32 Allen Wrench 3/32 

6-YCX-03-3 Bone Screws, Allen 

Head 

NOTE: To avoid drilling too deep, remember to always use a 6-T50 depth gauge with your selftapping 

bone screws 

6-SURGICAL AIDS 

6-20: 6-YWP-D01 Wurtz Pusher (Pictured 

at Left) 

Use to push wire from eye to top of skull. Low 

trauma instrument. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Figure 6-21: Surgery Ring (Pictured to the Right) 

This device holds the skin flap(s) away from the skull during 

surgery. Made of Stainless Steel, it 

provides clear open area to work without a clutter 

of hemostats around the work area. 

Figure 6-22: 6-YET-H2 Eye Coil Template (Pictured at Left) Provides a variety of diameters to size 

your Eye Coils for implant. The diameters range in size from 8 mm. to 17 mm in 1/2 mm 

increments. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



6-HCD-30-25 Tantalum Matrix Disk 

This is a unique, highly porous and highly biocompatible device that allows cells to grow in three dimensions 

the way they do normally in the body. Made from inert materials through a sophisticated manufacturing process. 

This breakthrough biomaterial takes cell culture to a new dimension. This line of 3-Dimensional Cytomatrix culture 

devices can be used: 

· To grow primary cells and established lines 

· To grow tumor cells isolites and lines 

· To grow high density attachment dependent cell cultures 

· To close and repair holes in bone left from the removal of recording chambers and the like. 

Matrix 

Features 

· 3-Dimensional Structure 

o biomimetic architecture 

· High Porosity 

o >90% open space 

· High surface area to volume 

rationo 

available growth area 

60-70 cm 2 /ml 

· Excellent biocompatibility 

o inert metal composite 

o clinical product is FDA 

compliant* 

· Fully interconnected geometry 

o uniform mass transfer 

· Surface coatable 

o 

antibodies, adhesion 

molecules etc. 

· Multiple configurations 

o 

6, 12, 24, 48, 96 well 

units and 30 x 60mm 

format 

· Scalable Technology 

Features 

· High Density growth 

o 2 x 10 7 to 8 x 10 7 cells/ml attainable 

o tissue-like density 

· Variety of applications and configurations 

o basic research 

o bioproduction 

o protein/expressed product 

o cell mass 

o drug candidate screening 

o Theranostics/Diapeutics 

o co-culture systems 

· Pilot scale, custom assemblies 

· Successful culture of: 

o primary cells; hepatocytes, 

fibroblasts, mesenchymal, islet and 

neuronal cells 

o transformed cells: cancer cells and 

lines 

o production cells: CHO, 3T3, and 

HEK 293 cells 

· No dead space in growth area 

*Clinical product is not for commercial 

sale 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Scanning electron micrographs of Cytomatrix 

Advantages 

· Uniform 3-Dimensional Structure 

o The 3-Dimensional structure and porosity of the Cytomatrix bears a remarkable resemblance of that 

of human bone marrow trebeculae. This provides cells with an in vivo, tissue-like cellular growth 

scaffold for a variety of cell culture applications. 

· Unique Textured Surface 

o The Cyotmatrix inert metallic coating provides the cells with a novel, highly textured surface to 

which attachment-dependent cells have a remarkable affinity for attachment and growth. This provides 

the cells with a desirable substrate on which to adhere and thrive. 

· Biomimetic Microenvironment 

o The unique 3-Dimensional architecture of the Cytomatrix is a highly desirable structure with in situlike 

properties. This provides attachment-dependent cells with a biomimetic microenvironment, which 

fosters natural inter-cellular signaling and simulates growth in an in vivo, tissue-like setting. 

· Versatile 

o The reliability of the highly consistent architecture of the Cytomatrix allows for a wide variety of 

product formats and presentations. This provides the end-user with a highly versatile research tool to 

investigate a wide variety of cell culture applications. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



6-Spare Parts 

6-HPS- 

01A 

6-HPP- 

01A 

6-ST- 

02J 

6-ST- 

01S 

Head Holder on 

Head, SS, Screw 

Set 

Head Holder on 

Head, CILUX, 

Screw Set 

Stereotaxic 

Alignment Tool 

Parts Set, MRI 

Type set Parts 

for: Alignment 

Tool for Head 

Holder on Head, 


for Cylinders 


for Grids and 

Support Ring 

Screws for Head 

Holder on Head 

Stereotaxic 


Parts Set, SS set 

1 

Parts for: 

Alignment Tools 

for Head Holders 

on Head, 

Alignment Tools 

for Cylinders 

and Grid 

Section 6 Implant & Alignment Parts 

8-32 x 3/4” Flat 

Head Allen Cap 

1 

1/8” x 1-1/2” Rod 1 

9/64 Allen Wrench 1 

Same as above 

w/CILUX Rod 

8-32 x 1” Flat Head 

Allen Cap Screws 

8-32 x 7/8” Flat 


Screws 

6-32 x 5/8” Flat 


Screws 

6-32 x 1/2” Flat 


Screws 

2-56 x 1/8” Cone 

Point Set Screws 

4-40 x 1/8” Cone 

Point Set Screws 

3/32, 5/64, 7/64, .035 

and .050 Allen 

Wrenches 

8-32x 7/8” Flat Head 








4-40x 1/8” Flat 


Screws 

1 

1 

2 

1 

1 

6 

3 

1 Each 

2 

1 

1 

1 each 

3 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Alignment Tools: 

3/32, 5/64, 7/64 and 

.050 Allen 

Wrenches 

1 

Part No. 

6-NCO-J1A 

6-NCS-01A 

6-NCS-02C 

6-NSS-01AA 

Component Name & 

Parts 

Cone Pt. Set Screw for Caps 

(IPO, IPI) 

Cone Pt. Set Screw for two 

Caps (IPO, IPI) 

Screws, for New MRI 

Chambers 

Chamber Adapter (Smoke 

Stack) Screws set 

Parts 

Total per set 

Eye Bar Plate Thumb Screw Q20 1 

4-40 x 1/8” Cone Pt. Set Screw 3 

.050 Allen Wrench 1 

4-40 x 1/8” Cone Pt. Set Screw 6 


4-40 x 1/4” Nylon Pan Head Screws 10 

2-56 x 1/8” Cone Point Set Screws 6 


6-SB-000 Base Plate Screws 4 

6-SPAW035 Small Allen Wrenches, .035 

2 

6-SPAW050 Small Allen Wrenches, .050 

2 


Telephone: 301-393-8615 · FAX: 301-393-8618 



New Products Available 1 ST Quarter ‘08 

7-MTS-4xxx Eye Tracker 4000 

Front View of the Magnetrack 

. 

Complete set-up of Magnetrack with the coil-frame (Oscilloscope not included) 

Our new Digital Eye Tracking system is based on our proven Magnetrack 3000 Analog system with 

the addition of easier to use Operator controls, Configuration Selection, Subject parameter memory 

and PC configuration ability. 

This is the First in our new line of MultiRack Family of systems. MultiRack systems will utilize a 

one, two or eight slot enclosure to house various configurations of standard function modules. 

SPECIAL FEATURES 

· All configuration parameters are digitally controlled to allow saving / recalling of calibration 

data. 

· All configuration and calibration is done from a master control unit. 

o 2D / 3D and number of sensor (eye) coils 

o Driver Coil size. 

o Subject selection. 

o Frequency selection. 

o Coil drive level and phase 

o Receiver Gain, Offset and phase 


Telephone: 301-393-8615 · FAX: 301-393-8618 



· Coil Drive Frequency is digitally generated to provide high stability. This also allows only 

one version driver module to be needed instead of the previous two. 

· Sensor coil receivers are designed to provide all three axis outputs from one module. Unlike 

the previous system, no sharing of receivers or complicated cross configuration of modules is 

required. 

· Coil tuning is now done with a capacitor array, based on supplied inductance of coil. 

Removable / replaceable capacitor boards are no longer required. 

· Tuning data for the system is provided by the PC Configuration software using supplied 

frequency and coil inductance. 

· Up to eight sets of calibration data can be stored to allow multiple subject selection. 

· Calibration data may also be read by the PC Configuration software and stored in text files. 

This provides for an unlimited number of subjects. 

· PC Control is via standard RS-232 serial port. All message protocol is published to allow 

control from any software system that has access to the serial ports. (A USB to Serial 

converter can also be used) 

· The system may be operated totally without a PC connection if desired. 

· A Digital Reward module is available for use with the eye tracking system. This module is 

also a member of our MultiRack Family of systems and has all the same great features of our 

5-RLD-D1-B: PC control / data collection, Wireless remote, and an expanded line of Sensors 

and Dispensers. 

Available system configurations: 

Catalog # 

7-MTS-4210 

7-MTS-4211 

7-MTS-4220 

7-MTS-4221 

7-MTS-4230 

7-MTS-4231 

7-MTS-4310 

7-MTS-4311 

7-MTS-4320 

7-MTS-4321 

7-MTS-4330 

7-MTS-4331 

7-MTS-4000 

Configuration 

2D / 1 sense coil 

2D / 1 sense coil / Reward 











MultiRack Rack Only 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Controller Driver Receiver Reward 


Telephone: 301-393-8615 · FAX: 301-393-8618 



MAGNETIC FIELD COILS (SEARCH COILS) 

The Magnetic Field Coil has a non-conductive frame that supports the coil windings to produce a linear 

magnetic field at the center of a cube. It is driven by an electronic driver system, which when operating 

creates the linear magnetic field. Our field coils work best with the Magnetrack 3000; but, can be configured 

to work with other manufacturers control units. These coils come in a variety of frequencies and power levels. 

Crist Instrument coil frames are available in a variety of sizes to fit various eye detector systems. The coils are 

available in 15-inch, 18-inch, 22-inch and 36-inch. Coils of other sizes can be produced upon request. If your 

organization owns a coil driver system produced by another manufacturer that does not provide the coil 

frame, we would be glad to produce it to their specifications in any size. 

7-SSCP-15 

Search Coil, 15-inch (38.10cm) 

Designed to fit over most Standard size Chairs and to rest on side supports (wings). The inside opening 

diameter is 13 inches (33.02cm). The Coil diameter at the winding is 15 inches (38.1cm) and the outside 

diameter is 18 inches (45.72cm) on each side. 

7-SSCP-18 


Designed to fit over a Large Chair or when your Standard Chair has options which would interfere with the 

15 inch fitting over those options. As with the 15 inch, it rests on side supports (wings). The inside opening 

diameter is 17 inches (43.18cm). The Coil diameter at the winding is 18 inches (45.72cm) and the outside 

diameter is 22 ½ inches (57.15cm) on each side. 

7-SSCP-22 


Special order. The inside opening diameter is 20.125 inches (51.12cm). The Coil diameter at the winding is 

22 inches (55.88cm) and the outside diameter is 26.375 inches (66.99cm) on each side. 

7-SSCW-36 


Special order. This is one of our full sized coils. To make it easier to center the chair within the coil a lifting 

device is recommended. See Section 8, Laboratory Structures. The inside opening diameter is 34.5 inches 

(87.63cm). The Coil diameter at the winding is 36 inches (91.44cm) and the outside diameter is 41.5 inches 

(105.41cm) on each side. 

Figure7.1 

Coil Frame 


Telephone: 301-393-8615 · FAX: 301-393-8618 



OPTICAL SECTION 

7-OIM-AF (0) 

Eye Mask 

The Eye Mask is designed to hold different color filters and occluders. This mask fits over the eyes similar 

to a pair of glasses and can be mounted on the three-part head holder (6-FHC-S2) on the primate chair. It can 

also be adapted to mount on a variety of other fixtures. 

TANGENT SCREENS 

Tangent Screens are one of the components used in studying the central visual system and visual behavior 

modes. Our Tangent Screens create a minimal image distortion and provide remarkably good light 

transmission. This screen works well for both front and rear projection. It is the result of over two years of 

developmental work and has been used since before 1989. 

The screen material used is Lumiplex, providing a smooth texture with minimal pattern. As tested with a light 

source of 32.4 cd/m2, it has been attenuated to 15.8 cd/m2 when measured by a Tektronics Luminance Probe. 

Image intensity, under those conditions, for rear projections is reduced no more than 51%. It has been 

reported to us by some investigators to be reduced by no more than 15%. When establishing and repetitively 

recording visual receptive fields, the screen can be written on with a wax crayon or a felt-tip pen. 

7-QTS-L1 

Moveable Tangent Screen 

This Tangent Screen is mounted on a frame that hangs from the ceiling. It can be moved in a straight line for 

a selected distance from the subject in order to aid in radian calculation. If it is preferred, it can be swung 

upward and latched in place near the ceiling. This will allow for a Touch Screen Monitor or some other 

device to be positioned in its place without interference. This is also a good storage position in that it is less 

likely to be damaged when not in use. The top of the screen has a hinge mechanism and linear bearings that 

allow it to travel easily along the visual center line, while the hinge allows for the storage position. 

We recommend that installation of this type of screen be executed by Crist Instrument Technical Staff or at 

the very least by highly skilled craftsmen. Detailed instructions can be provided as needed. Help is only a 

phone call away. Installation is not included in the price of the screen. 

7-QTS-L2 

Stationary Tangent Screen 

This model is fixed in place from the floor to ceiling with a preset distance from the center. 

7-QTS-L3 

Tangent Screen on Platform 

This model is mounted on a rolling platform for use in multiple laboratory locations. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Section 9 – Stereotaxic Devices 

Figure 9-1: Stereotaxic Apparatus for MRI Work (9-YST1-30) 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Stereotaxic Apparatus 

Crist Instrument Co., Inc. now provides a variety of different sizes and models of Stereotaxic 

Frames. Because we are expanding this product, we are changing the part numbers and moving these 

products from Section 6 to Section 9 in our catalog. This should aid you in locating these products 

and their optional parts. 

The Primate Stereotaxic Models are listed in the table below. In addition, there is a model that is 

especially useful when working with cats (9-YSTC-1). We will also be adding a model for rats, 

mice, and other small animals in the near future. 

Our Primate Stereotaxic Frames are suitable for use in the MRI and for light surgery. The device is 

compatible with a variety of Kopf Manipulators and Positioners. It is designed principally for 

holding the animal's head in the MRI. When it is used in surgery, there will be no discrepancies in 

the positioning. All models of Stereotaxic Frames are determined by the bore size of your MRI. Each 

model is available in two material types; aluminum/plastic and all plastic. The magnetic power of 

your MRI will determine which material you will require in your frame. The Metal and Plastic frame 

is usable in surgery with care and delicacy. 

A number of options are available with each model. These include Offset and Straight Ear and Eye 

Bars, a variety of Ear Tips, different Eye Bar Position Plates and an Anterior Dye Marker There are 

two sizes of anterior/posterior sidebars for these models. When ordering, please specify which size 

you require 19 cm. and 22 cm. Note that the A/P Bars for Baboons are available in only one size 22 

cm. The Ear Bar Tips are available in the sizes and shapes listed as A through M (See Drawing). 

Please specify which tip you need for your project. All Tips have dye markers in the center. The 

smaller model Stereotaxic Frames (e.g. 9-YSTI-22 and 9-YST-18) are especially recommended for 

new world monkeys and infant macaques. 

Part No. Model Name Material Type Included Options Old Part # 

9-YSTI-35-A-O 

9-YSTI-35-P-O 

9-YSTI-30-A-O 

9-YSTI-30-P-O 

Stereotaxic Frame 

for 35 cm. Bore 

MRI 



MRI 



MRI 



MRI 

Aluminum and 

Acrylic 

All Plastic 

Materials 

Aluminun and 

Acrylic 

All Plastic 

Materials 

Offset ear and Eye 

Bars 

Offset Ear and Eye 

Bars 


Bars 


Bars 

6-YSMRI-10 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Part No. 

9-YSTI-24-A-O 

9-YSTI-24-P-O 

9-YSTI-22-A-O 

9-YSTI-22-P-O 

9-YSTI-18-A-O 

9-YSTI-18-P-O 

9-YSTI-38-A-O 

9-YSTI-38-P-O 

9-YSTI-35-A-S 

9-YSTI-35-P-S 

9-YSTI-30-A-S 

9-YSTI-30-P-S 

9-YSTI-24-A-S 

9-YSTI-24-P-S 

9-YSTI-22-A-S 

Model Name Material Type Included 

Options 

Stereotaxic Aluminum and 

Frame for 24 Acrylic 

cm. Bore MRI 

Stereotaxic 

Frame for 24 

cm. 

Stereotaxic 

Frame for 22 

cm. Bore MRI 

Stereotaxic 

Frame for 22 

cm. Bore MRI 

Stereotaxic 

Frame for 18 

cm. Bore MRI 

Stereotaxic 

Frame for 18 

cm. Bore MRI 

Stereotaxic 

Frame for 38 

cm. Bore MRI 

Stereotaxic 

Frame for 38 

cm. Bore MRI 

Stereotaxic 

Frame for 35 

cm. Bore MRI 

Stereotaxic 

Frame for 35 

cm. Bore MRI 

Stereotaxic 

Frame for 30 

cm. Bore MRI 

Stereotaxic 

Frame for 30 

cm. Bore MRI 

Stereotaxic 

Frame for 24 

cm. Bore MRI 

Stereotaxic 

Frame for 24cm. 

Bore MRI 

Stereotaxic 

Frame for 22 

cm. Bore MRI 

All Plastic 

Aluminum and 

Acrylic 

All Plastic Materials 

Aluminum and 

Acrylic 


Aluminum and 

Acrylic 


Aluminum and 

Acrylic 


Aluminum and 

Acrylic 


Aluminum and 

Acrylic 


Aluminum and 

Acrylic 

Offset Ear and 

Eye Bars 


Eye Bars 


Eye Bars 


Eye Bars 


Eye Bars 


Eye Bars 


Eye Bars 


Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Old Part # 

6-YSTMRI-22 

6-YSTMRI- 

22S 

6-YSTMRI- 

10S 

6-YSTMRI- 

Bab 

6-YSTMRI-10 

6-YSTMRI-22 

6-YSTMRI- 

22S 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Part No. Model Name Material Type Included 

Options 

9-YSTI-22-P-S Stereotaxic All Plastic Materials 

Frame for 22 

cm. Bore MRI 

9-YSTI-18-A-S 

9-YSTI-18-P-S 

Stereotaxic 

Frame for 35 

cm. Bore MRI 

Stereotaxic 

Frame for 35 

cm. Bore MRI 

Aluminum and 

Acrylic 


Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Straight Ear 

and Eye Bars 

Old Part # 

6-YSTMRI- 

10S 

9-YSTMRI-30-P-S 

Standard 30 cm MRI Stereotax 

Front View 

Rear View 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-YSTMRI-22-A-O 

22 cm Stereotaxic System 

Lower right oblique view: 

View from Posterior: 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-CSTI-16/12 

Bird Cage RF Stereotaxic System 

Side View 

Front View 

Eyebar System showing eyebars 

with dye markers, and Pallet bar 

Eyebar showing dye marker & 

bone-hook 

Bone Hook 

Dye Marker 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-RMS1 

Rat Stereotaxic System 

Front View 

Top View 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Figure 6-2: Available Ear Bar Tips 

Figure 6-2: NOTE: Different Ear Bar Tip styles are available. Please select one of the following 

tip styles and specify with your order. See above for drawing of the Ear Bar Tip Styles. 

9-YSTI-8 

Ear Bar Tip Styles 

Refer to the parts listed below for extras and replacements for your Ear Bar Tips. 

9-YSTI-1-8A Ear Bar Tip for .312 size Shank, Style A, set of 2. 

9-YSTI-1-8B Ear Bar Tip for .312 size Shank, Style B, set of 2. 

9-YSTI-1-8C Ear Bar Tip for .312 size Shank, Style C, set of 2. 

9-YSTI-1-8D Ear Bar Tip for .312 size Shank, Style D, set of 2. 

9-YSTI-1-8E Ear Bar Tip for .312 size Shank, Style E, set of 2. 

9-YSTI-1-8G Ear Bar Tip for .250 size Shank, Style G, set of 2. 

9-YSTI-1-8H Ear Bar Tip for .250 size Shank, Style H, set of 2. 

9-YSTI-1-8J Ear Bar Tip for .250 size Shank, Style J, set of 2. 

9-YSTI-1-8K Ear Bar Tip for .250 size Shank, Style K, set of 2. 

9-YSTI-1-8L Ear Bar Tip for .250 size Shank, Style L, set of 2. 

9-YSTI-1-8M Ear Bar Tip for .250 size Shank, Style M, set of 2 

Note: Ear tips not to size 


Telephone: 301-393-8615 · FAX: 301-393-8618 



YST STEREOTAXIC FRAME PARTS 

Refer to the list below for extras and replacement parts on your MRI Stereotaxic Frame. When 

selecting additional Eye or Ear Bars, please remember that they MUST match. 

As the model 22 is narrower at the base to accommodate a small bore MRI, a detachable base is 

available to provide a stable platform during surgeries. 

9-YST-1-X EYE BARS, EAR BARS & EYE BAR ASSEMBLIES 

9-YSTI-1-12 Eye Bars, Offset, Small 1/4” dia. formerly YIO-BS 

9-YSTI-1-12B Eye Bars, Offset, Large 5/16” dia formerly YIO-BL 

9-YSTI-1-11 Eye Bars, Straight, Small 3/8 x 3/16 bar, formerly YIL-BS 

9-YSTI-1-11A Eye Bars, Straight, Large 5/16” bar, formerly YIL-BL 

9-EYE BAR POSITION PLATES 

9-YSTI-1-9B Eye Bar Position Plate, Standard size 

9-YSTI-1-9A Eye Bar Position Plate, Small size 

9-YSTI-1-9C Eye Bar Position Plate, Nursery size 

9-EYE BAR POSITION PLATE ASSEMBLY 

These assemblies include the Eye Bars, Position Plate, the Locking Screw, Palate Bar and Main 

Block Attaching Screws. Eye Bars must Match Existing Ear Bars for Straight or Offset style. 

9-YSTI-1-119A 

9-YSTI-1-129A 

9-YSTI-1-119B 

9-YSTI-1-129B 

9-YSTI-1-119C 

9-YSTI-1-129C 

Eye Bar Position Plate Assembly, small, straight Eye Bars 

Eye Bar Position Plate Assembly, small, offset Eye Bars 

Eye Bar Position Plate Assembly, large, straight Eye Bars 

Eye Bar Position Plate Assembly, large, offset Eye Bars 

Eye Bar Position Plate Assembly, Nursery Size, straight Eye Bars 

Eye Bar Position Plate Assembly, Nursery Size, offset Eye Bars 

NEW 

9-YSTI-1-11C 

Anterior Reference Marker eye bars 

Also see Spare Parts Section for Small items; e.g. screws. 

All of the above Stereotaxic Frame Parts are made from Brass, Aluminum or Plastic. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



Note: Caution must be taken if using small animal ear bars or eye bars on larger animals. The points are 

smaller and may penetrate deep enough to cause ear damage. We strongly suggest that if using the standard 

frame for larger primates, order the larger size of Ear Bar ends. Standard rails for the Stereotaxic Frame are 

19 mm. 22 mm rails can be supplied if you have manipulators that fit this larger size. Ear Bars and Eye Bars 

must be matched at the time of purchase. 

9-YSTC-1 The Visual System Investigator 

The Visual System Investigator offers the ultimate in flexibility for visual systems studies of cats 

and monkeys. The experimental Animal’s eyes are allowed an unobstructed view to nearly 90 

degrees from central vision, while maintaining the ability to move in stereotaxic coordinates. This is 

accomplished by reversing the position of the animal in the carrier. Instead of a conventional 

straight piece connecting the side rails into a “U” shape, a generous curve allows greater room to 

accommodate larger experimental animals. The palate 

and eye clamps are mounted to a slot rail, which allows 

the clamps to be slid in from the side with minimal 

invasion of the visual field. A pair of specially machined 

“L” shaped ear bars allows a single investigator to easily 

secure the animal to the frame. The frame tilts forward to 

normalize visual receptive fields, and is made of anodized 

aluminum – compatible with applications requiring nonferrous 

metals. The side rails can be used with currently 

manufactured manipulators, which can be slid in from the 

front or back of the frame. Talk with a Crist Instrument 

Company sales person about your application and how 

the VSI can be tailored to suit your needs. 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-YSTI-18 Stereotaxic Frame Parts 

Part No. Model Name/Material Works With 

9-YSTI-18-PA2 Main Block/Acrylic 9-YSTI-18 

9-YSTI-18-PJ4SL AP Bar, Small Left/Cilux 9-YSTI-18 

9-YSTI-18-PJ4SR AP Bar, Small Right/Cilux 9-YSTI-18 

9-YSTI-18-PJ5 Ear Bar Block/Cilux 9-YSTI-18 

9-YSTI-18-PJ7L Straight Ear Bar Left/Cilux 9-YSTI-18 

9-YSTI-18-PJ7R Straight Ear Bar Right/Cilux 9-YSTI-18 

9-YSTI-18-PJ7-ASSY Ear Bar Assembly/Cilux 2ea 9-YSTI-18 

9-YSTI-18-PJ9 Eye Bar Plate/Cilux 9-YSTI-18 

9-YSTI-18-PJ9-ASSY Eye Bar Assembly/Cilux 2ea 9-YSTI-18 

9-YSTI-18-PJ10 Pallet Bar/Cilux 9-YSTI-18 

9-YSTI-18-PJ11 Eye Bar/Cilux 2ea 9-YSTI-18 

9-YSTI-18-PJ15 AP Bar Supports/Cilux 9-YSTI-18 

9-YSTI-18-PJ16-S Leveling Screws/Cilux Set 9-YSTI-18 

9-YSTI-18-PA3 Base 9-YSTI-18 

9-YSTI-22 Stereotaxic Frame Parts 


9-YSTI-22-PA2 Main Block/Acrylic 9-YSTI-22 

9-YSTI-22S-PJ4L AP Bars, Small Left/Cilux 9-YSTI-22 

9-YSTI-22S-PJ4R AP Bars, Small Right/Cilux 9-YSTI-22 

9-YSTI-22-PJ15 AP Bar Supports/Cilux 9-YSTI-22 

Only 



Telephone: 301-393-8615 · FAX: 301-393-8618 



9-YSTI-27 


9-YSTI-27-PA2 Main Block/Plastic Acrylic 9-YSTI-27 


9-YSTI-30 




9-YSTI-35 




Universal Stereotaxic Frame Parts 


9-YSTI-1L-MA4L AP Bars, Large Left/Aluminum Universal to 

all Frames 

9-YSTI-1L-MA4R AP Bars, Large Right/Aluminum Universal to 

all Frames 

9-YSTI-1S-MA4L AP Bars, Small Left/Aluminum Universal to 

all Frames 

9-YSTI-1S-MA4R AP Bars, Small Right/Aluminum Universal to 

all Frames 

9-YSTI-1L-MA5 Ear Bar Block, Large/Aluminum Universal to 

all Frames 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-YSTI-1S-MA5 Ear Bar Block, Small/Aluminum Universal to 

all Frames 

9-YSTI-1L-PA5 Ear Bar Block, Large/ Cilux Universal to 

all Frames 

9-YSTI-1S-PA5 Ear Bar Block, Small/Cilux Universal to 

all Frames 

9-YSTI-1L-MA6B Offset for Ear Bars, Large 3/8 x 1/2”Rect/ Brass Universal to 

all Frames 

9-YSTI-1L-MA6-L Offset Ear Bars, Large Left 3/8” Square/ Brass Universal to 

all Frames 

9-YSTI-1L-MA6-R Offset Ear Bars, Large Right 3/8” Square/Brass Universal to 

all Frames 

9-YSTI-1S-MA6B Offset for Ear Bars, Small 3/8 x 1/2” Rect/ Brass Universal to 

all Frames 

9-YSTI-1S-MA6-L Offset Ear Bars, Small Left ¼” Square/ Brass Universal to 

all Frames 

9-YSTI-1S-MA6-R Offset Ear Bars, Small Right ¼” Square/ Brass Universal to 

all Frames 

9-YSTI-1L-PJ6B Offset for Ear Bars, Large 3/8 x 1/2” Rect/Cilux Universal to 

all Frames 

9-YSTI-1L-PJ6-L Offset Ear Bars, Large Left 3/8” Square/Cilux Universal to 

all Frames 

9-YSTI-1L-PJ6-R Offset Ear Bars, Large Right 3/8” Square/Cilux Universal to 

all Frames 

9-YSTI-1S-PJ6B Offset for Ear Bars, Small 3/8 x 3/8” Square/Cilux Universal to 

all Frames 

9-YSTI-1S-PJ6-L Offset Ear Bars, Small Left ¼” Square/Cilux Universal to 

all Frames 

9-YSTI-1S-PJ6-R Offset Ear Bars, Small Right ¼” Square/Cilux Universal to 

all Frames 

9-YSTI-1L-MA7L Straight Ear Bars, Large Left 3/8” Square/Brass Universal to 

all Frames 

9-YSTI-1L-MA7R Straight Ear Bars, Large Right 3/8 Square/Brass Universal to 

all Frames 

9-YSTI-1L-PJ7L Straight Ear Bars, Large Left 3/8” Square/Cilux Universal to 

all Frames 

9-YSTI-1L-PJ7R Straight Ear Bars, Large Right 3/8” Square/Cilux Universal to 

all Frames 

9-YSTI-1S-MA7L Straight Ear Bars, Small Left ¼” Square/Aluminum Universal to 

all Frames 

9-YSTI-1S-MA7R Straight Ear Bars, Small Right ¼” Square/Aluminum Universal to 

all Frames 

9-YSTI-1-PJ8-(A-Q) Ear Bar Tips (choose style)/Cilux, All come with Dye 

Markers 

Universal to 

all Frames 

9-YSTI-1-PJ9-FO Eye Bar Plate/Cilux, New Style Solid Offset Universal to 

all Frames 

9-YSTI-1-MA9-FO Eye Bar Plate/Aluminum, New Style Solid Offset Universal to 


Telephone: 301-393-8615 · FAX: 301-393-8618 



all Frames 

9-YSTI-1L-MA9-L Eye Bar Plate/Aluminum Long Universal to 

all Frames 

9-YSTI-1L-MA9-STD Eye Bar Plate/Aluminum Universal to 

all Frames 

9-YSTI-1L-PJ9-STD Eye Bar Plate/Cilux Universal to 

all Frames 

9-YSTI-1S-MA9-F Eye Bar Plate/Aluminum For Flat Eye Bars Universal to 

all Frames 

9-YSTI-1S-MA9-S Eye Bar Plate/Aluminum, Use with 

9-YSTI-1-MA12-S 

Universal to 

all Frames 

9-YSTI-10-MA11 Flat Eye Bar /Aluminum Universal to 

all Frames 

9-YSTI-10-MA11-S Flat Eye Bar /Aluminum Universal to 

all Frames 

9-YSTI-1L-MA11-S Flat Eye Bar /Aluminum Universal to 

all Frames 

9-YSTI-1-MA11-L Flat Eye Bar /Aluminum Universal to 

all Frames 

9-YSTI-1-PJ11 Flat Eye Bar/Cilux Universal to 

all Frames 

9-YSTI-1-PJ12 Offset for Flat Eye Bar/Cilux, Use with Eye Bar Plate 

9-YSTI-1-PJ9-FO 

Universal to 

all Frames 

9-YSTI-1-MA12-S Offset Eye Bars/Aluminum, Use with 

9-YSTI-1S-MA9-S 

Universal to 

all Frames 

9-YSTI-1-MA12 Offset Eye Bars/Aluminum, Use with 

9-YSTI-1L-MA9-STD or 9-YSTI-1L-MA9-L 

Universal to 

all Frames 

9-YSTI-1-MA12A Offset For Eye Bars/Aluminum, Use with Eye Bar 

Plate 9-YSTI-1-MA9-FO 

Universal to 

all Frames 

9-YSTI-1-MA13S Pallet Bar Lock for Cilux MRI, Use Thumb Screw Universal to 

all Frames 

9-YSTI-1-PN16 Leveling Screws/Nylon Fits all 

standard flat 

based 

9-YSTI-1-PJ17 Anterior Dye Marker/Cilux to level computer image Universal to 

all Frames 


Telephone: 301-393-8615 · FAX: 301-393-8618 



9-Spare Parts 

Part No. Component Name & Parts 

Total per set 

Parts 

9-YSTI -01F Stereotaxic Parts Bubble Level 1 

9-YSTI-16 Leveling Screws 3 

Palate Bar Lock Screw, Brass 

1 


Telephone: 301-393-8615 · FAX: 301-393-8618 




111 W. First Street 

Hagerstown, Maryland 21740 USA 

Telephone 1-301/393-8615 Fax 1-301/393-8618 

E-mail neurotoys@msn.com 

TECH BRIEF VOL. 1-3 

SINGLE CELL RECORDING SYSTEMS 

In the past, when working with single cells on chronically implanted primates, it has been difficult to establish that a 

given microelectrode penetration corresponds to particular electrode track on histological sections, or indeed, whether 

they were parallel. As a result of work done by Charles Crist, and Doctors Yamasaki, Komatsu and Robert Wurtz, a 

Grid System was developed to work in conjunction with microelectrodes, Guide Tubes and a Recording Microsyringe 

for chemical injections. The success of this system has resulted in it’s becoming a standard for use in the research 

environment when accurate mapping or lesion placement is required. 

Crist Instrument had the Grid System (6-YGD-D1, 6-YGD-J1, 6-YGD-D2 and 6-YGD-J2) with Guide Tubes 

and Grids available for this type of study since early testing proved the efficiency of this apparatus. We worked on a 

method for commercially producing the Recording Microsyringe that was brought to the marketplace in June 1992. 

Since that time, it has been proven a highly effective device for simultaneous recording and injection of various 

substances in a single cell site. This brief describes the use of the Grid System and the Recording Microsyringe (3- 

MRM-S02). 

The Crist Grid System uses a “Grid Cup” that fits within the grid holder (Chamber Adapter) and an implanted 

Recording Cylinder. The Grid is made from Delrin or CILUX to keep it light in weight and also invisible to the MRI. It 

has an outside diameter of 19.05 mm and an inside diameter of 16.80 mm. The grid area consists of a format of 221 

holes spaced 1 mm apart on the X-Y plane. It is in a well deep enough to stabilize a thin walled Guide Tube (6-YGTSxx, 

for Guide Tubes up to 60 mm, or 6-YGTSA-xx for Guide Tubes over 60 mm) holding it virtually rigid. The Guide 

Tube is sufficiently large to allow the passage of a thin tungsten microelectrode or the Recording Microsyringe. The 

holes in the grid also accommodate thin platinum-iridium microelectrodes used for exploration. We recommend when 

using the grid that it be aligned stereotaxically to the Recording Chamber. This allows the grid assembly to be removed 

and replaced repeatedly, still maintaining it’s anterior - posterior position. The Adapter (Smokestack) has three slots for 

the key pin located on the Recording Chamber. This allows a rotation of 30-degree steps of the grid with three times the 

penetration sites. Chamber Adapters and Head Holders are made from high quality 316 Stainless Steel or from CILUX. 

Guide Tubes are all custom cut to length with a squared off end and a flared top to facilitate insertion of the 

microelectrode. 

The Recording Microsyringe (3-MRM-S02) uses a modified Hamilton Syringe with an extended recording 

barrel. The wire is thin enough to allow the flow of relatively high viscosity solutions through the barrel. The wire 

extends .750 mm beyond the tip of the tube to prevent tissue displacement from interfering with recordings. Wire 

impedance measure in a range of 0.3 and 1.0 micro ohm at 1000 Hz. The Recording Microsyringe permits the 

occurrences of simultaneous single unit recordings and injections of various substances. It is possible to create a 

temporary or permanent lesion at or near a single neuron and observe the changes, which occur. Lesion effectiveness is 

measured with immediate response as the active neuron signal changes or ceases to fire. For convenience and cost, we 

are packaging the Recording Microsyringe in units that consist of three recording barrels and one modified Hamilton 

syringe. 


Telephone: 301-393-8615 · FAX: 301-393-8618 






Telephone 1-301/393-8615 Fax 1-301/393-8618 


TECH BRIEF VOL. 2 - 1.2 

ADAPTING THE SINGLE CELL RECORDING SYSTEM FOR USE WITH 

THE MRI 

AND UPDATES OF OTHER APPARATUS 

Because of increasing interest in the use of MRI to locate exact areas of the brain for study 

and to verify the location of head holders and cylinders after attachment, we have designed and are now 

producing a line of non-magnetic products expressly for use with MRI equipment. These items include our 

“0” degree and angle chambers, which are similar in style to the Evarts’ cylinder (6-ICO-J0, 6-ICO-J2A, 6- 

IAM-J0 & 6-IAM-JA); the Head Holder on the Head (6-FHP-J1, J6 & J4), the Head Post (6-FHP-X2 & B2), 

the Head Positioner on the Chair (FHD-J9) and the matching Head Holder on the Head (6-FHP-J9), as well as 

the Chamber to Microdrive Adapter, “Smokestack” (6-YNP-S3 & 6-YNP-J3). These are all comparable to 

our Stainless Steel devices for the same purpose, although some minor design changes were necessary. 

In addition to the standard size line of cylinders and head holders we have also developed a 

new line of head holders in 316 Stainless Steel (not for MRI use), Titanium and CILUX for small animals (6- 

FHP-J6 and 6-FHP-J4) such as rats, rabbits, cats and new world monkeys. We have also designed a new 

Head Holder on the Chair (6-FHC-S6 and 6-FHC-S4) for smaller and lighter animals and the 6-FHC-S5 to 

work with the Mini Chairs (1-CM). 

The latest addition to our repertoire of useful products is the Adjustable Head Positioner (6- 

FAC-SB series). It swivels, it pivots and turns to the position you need. With this unit the Head Holders for 

the Head can be placed in almost any position or location you require for your investigations. 

For your convenience, store your microdrive adjacent to your work center in a Microdrive 

Storage Box (3-MMD-P1). The box hangs on a wall near your work center or hangs underneath a shelf. It 

has a specifically designed hanger for your Microdrive. Leave it connected, hang it up. The box is 

constructed of plastic with Stainless Steel hinges and a Brass door latch. 

Of course, the Stereotaxic for MRI (6-YSTMRI-10 or 6-YSTMRI-22) will be a must. It is 

made from plastic, with aluminum side bars and brass ear, eye and palate bars. 

When it is freedom to work as you need you need to think of Crist Instrument Co., Inc. 


Telephone: 301-393-8615 · FAX: 301-393-8618 






Telephone 1-301/393-8615 Fax 1-301/393-8618 


Tech Brief Vol. V-2.2 

NEW MRI COMPATIBLE PRODUCTS 

The Crist Instrument Company is a leading provider of MRI compatible implant devices for 

single cell recording. We have recently begun using a new material we call CILUX. It has 

properties that are far superior to the reinforced Delrin used previously. It is stronger and more rigid 

than the Delrin. As a result, screws hold firmly for a longer period of time. This product can be 

autoclaved without absorbing water and it appears to retain its shape and dimensional stability. This 

is a product with greater endurance and strength. The products available in this new material include 

Recording chambers from “0” to 45 degrees of angle, now in two models; Chamber Caps; Implant 

Screws; Grids, both Standard and Offset; Head Holders and Ear Bar tips for the MRI Stereotaxic 

Frame. Because of higher material costs and additional matching costs to manufacture, these 

products are being offered at a slightly higher price than the Delrin. 

The CILUX Recording Chambers are available in two styles. One style is made with 

opposing nylon screws; the other is similar to the stainless steel chamber and is made with set 

screws. 

Continuing with our MRI compatible products, we are now providing a new brass or titanium 

Head Post (6-FHP-B2 and 6-FHP-X2). The head Post Pin is designed with tapered sides on the pin 

that fit into a vertical slot on the Chair Mounted Universal Head Positioner. A pin prevents vertical 

movement in the slot and the tapered sides prevent any torsional movement. The assembly is held 

with a single screw. Adapters are also available to make these compatible with our standard Head 

Positioner on the Chair 6-(FHC-S2, 6-FHC-S6 and 6-FHC-S4). Extreme care must be taken when 

using any brass material in this type of research. At no time may the brass make contact with living 

tissue. The brass must be FULLY encapsulated in the dental acrylic. Using brass and titanium for 

MRI studies reduces, but does not eliminate the broad shadowing of metals in the MRI field. For 

this reason, care should be taken in positioning any metal parts near those areas you are interested in 

examining in the MRI. While the Crist Instrument Company, Inc. is aware that brass head posts are 

in common use in some laboratories, the Crist Instrument Company, Inc. does not fully endorse or 

accept the responsibility for any deleterious results ensuing from the use of brass so closely 

conjoined with biological material. But, being fully aware of the limited funds available in research, 

we are willing to supply these products with the understanding that the use of these products is 

solely the responsibility of the investigator. 


Telephone: 301-393-8615 · FAX: 301-393-8618 






Telephone 1-301/393-8615 Fax 1-301/393-8618 



STEREOTAXIC AND RELATED EQUIPMENT FOR THE MRI 

The response to our Tech Brief Vol. 2-1, adapting the Single Cell Recording System for use 

with the MRI, has created significant interest. Those responses have encouraged us to develop a 

MRI compatible Stereotaxic. It incorporates features consonant with the Kopf, with the addition of 

MRI compatibility and dye markers in the ear bars to provide a fiducial mark in the MRI display. 

The standard model for use with macaques comes with offset ear and eye bars. Straight ear and eye 

bars are available. These are recommended for use with small animals such as cats or new world 

monkeys. 

We have placed dye markers visible to the MRI in the ear bars to provide you with a 

reference when selecting the area for making your recordings more accurately. The vitamin E used 

as a dye marker is clearly visible on the MRI imaging screen. It will not cause any disturbance or 

loss of clarity to the image. The ear bars also have graduations one millimeter apart with a fiftymillimeter 

range for precise centering of the subject. 

The fixed eye bars position the lower eye sockets even with the aural canal. Adjustable eye 

bars are available so you may use any tilt angle you desire. We recommend the use of a preset 

incisor contact device mounted in your manipulator to obtain a degree of repeatability when using 

other that the “0” angle. 

The side bars are graduated one millimeter apart, one hundred millimeters in each direction 

from “0” at the ear bar center line. This allows for accurate positioning of manipulators when doing 

operations similar to those done in normal surgery. In fact, this device can be used in place of your 

regular surgical set up. 

If you use manipulators in this or any similar Stereotaxic apparatus, we have available a very 

inexpensive centering and positioning device (6-ST03). This will set the X-Y- and Z Zero (0) 

reference of your pointer system in your manipulators. 

In addition to the MRI Stereotaxic, we developed a dye marker system integrated into our 

Standard Guide Tube Grid. When used with our Recording Chamber (6-IAC and 6-ICO, nonmagnetic 

series) and the Chamber to Microdrive Adapter (6-YNS and 6-YNP series), which holds 

the Grid in place. MRI studies can be performed after surgery to verify exact positioning and the 

correct orientation of your surgical implants. Four dye markers are provided in the x-y coordinate 

positions of the Grid (6-YGD and 6-RGP series). These can be used to delineate the positioning and 

angle of alignment of the Guide Tube Grid. For information on the use of the Single Cell Recording 

System, refer to our Tech Brief, Volume 1-3. 


Telephone: 301-393-8615 · FAX: 301-393-8618 






Telephone 1-301/393-8615 Fax 1-301/393-8618 



Liquid Reward System (RLDE1 or RLDE2) 

The liquid reward system that we manufacture is as versatile as we can possibly make it. It consists 

of two models, the delivery tube (5-RLD-00A); the controller, which comes in either a 19” panel mount (5- 

RLD-E1) or a free standing box (5-RLD-E2) that can be placed on the table or shelf and the dispenser units 

(5-RLD-E1C, E2C) which mount on the wall or a shelf high enough to provide gravity feed. A stand is also 

available for the dispenser unit. 

The controller utilizes eight time selections to control the amount of reward given. The operator or 

the computer can control any one of these eight selections. In addition, there is a selection that allows the 

duration to be completely controlled by the computer. The selection of when to give the reward can be 

controlled manually by the operator or a five-volt TTL signal from the computer. The operator has two 

options in triggering the reward; one is a push button on the panel (box) or a remote cable switch. Input from 

the computer can be with a BNC connector or two banana plugs. An audible signal is provided on the panel 

as well as on the dispenser unit. The volume of these audible units can be controlled by adjustable 

potentiometers accessible on the back of the panel or inside the box. Control is also provided to select either 

one or both of the audible devices. This equipment operates from standard 110-volt supply line. All power 

supplies necessary for the operation of the equipment are built in. For systems using other voltages we can 

change the transformer to accommodate your needs. Please advise when you place your order. 

The dispenser unit consists of a liquid container, rapid response solenoid, drain switch and the audible 

device. These elements are mounted securely to the panel. The freestanding control box model comes with a 

stand for the dispenser unit that can be set on a shelf. Units include either a twenty-five foot or a fifteen foot 

control cable, with connector. If a longer cable is required, it must be requested at the time of order. Five feet 

of Tygon tubing (1/8”) is provided to connect to the feeder tube. If more is needed, it must be requested at the 

time of the order. 

The feeder tube is approximately seventeen inches long (43 cm) and is made from stainless steel hypo 

tubing. It terminates with a molded mouthpiece made of dental acrylic with two vacuum breaker tubes on 

either side. The design is such that a drop coming from the main tube will be supported briefly by the 

vacuum breaker tubes. The vacuum breaker tubes prevent the subject from siphoning the water or other liquid 

from the system. Also included is a mounting block and clamp. We feel the tube is long enough to be bent 

carefully by hand to position near enough to the subjects mouth that they can, with little or no effort, receive 

the reward as it is given. We highly recommend purchasing extra feeder tubes. This will permit continued 

use of the system while one is being cleaned. 

Even with the versatility we have designed into our equipment, we realize there are variations and 

changes that may suit your needs more precisely. We offer our services in modification to any and all 

equipment manufactured by Crist Instrument Co., Inc. Please contact us for your special needs. 


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ISOLATION BOOTHS 

Because of the growing trend toward multiple, on-going experiments in a single room, the Crist Instrument 

Company has developed a line of Isolation Booths for both vision, hearing, behavioral or other types of research. These 

booths are designed to restrict to a minimum the outside distractions to the experiment in progress within the booth. 

The vision and behavioral booths are designed to work with interactive Touch Screen Monitors and/or provide 

space for scleral coils used in tracking cicads during single cell recordings. Access is provided for loading the animal 

and chair through the rear. An additional opening is provided on the side (right or left) to perform the necessary 

investigator tasks in setting up the experimental equipment. Additional access is provided in the top for insertion of 

microdrives, water tubes or electronic cabling. A track with sliding base facilitates easy positioning of the chair in 

relation to the Monitor Screen. The chair clamps on to the base and an adjustable lock positioner holds the base in place 

during the experiments. A shelf is included on the outside for mounting a Touch Sensitive Monitor at the vision port or 

to provide a platform for tasking. This shelf is adjustable to accommodate the various models and sizes of Monitors or 

other devices. 

Audio booths are similar in design without the video port. They are provided with sonex sound attenuating 

foam on the inside surfaces. Facilities can be provided for a variety of speakers and speaker positions within the box. 

Because it is important that the chair has no barriers to the surrounding sound, if the animal’s head must be held in some 

fixed position, a head holder can be mounted to the top of the box. This allows for a full 360 degree sound clearance to 

the audio canal. Audio booths, because of the added sound attenuation material are generally constructed somewhat 

larger and are usually preferred to be square rather than rectangular along the base dimension. Similar to the vision 

booth, there is a rear loading and side access so the investigator can set up the equipment and position the animal for a 

variety of experiments. 

All booths are constructed of wood with foam fillers and completely covered on all surfaces, inside and out, 

with water proof, easy to clean Formica. Booths come in a variety of sizes to meet individual protocols. All of the 

elements of the booth are precision cut and pre-assembled to verify fit. The booths are shipped assembled but because of 

the size generally required for the audio booths, they may require disassembly to fit through a standard door. Units can 

be provided with or without locking castors. Without the castors, the unit sits directly on the floor. If they must be 

moved frequently for cleaning or to move experiments from one place to another, we recommend the castors. In general, 

most laboratories set them up in an appropriate system for both experimental ease and convenience in the room. When 

ordering your booth you can also select your Formica color options in standard black, or white. 

The Crist Instrument Company is able and willing to custom design any shape or size isolation booth or 

Wisconsin box that you may require. As with all laboratory set-ups on site installation services are available. We 

particularly recommend site installation for the larger units. These boxes can be fabricated with a variety of options, see 

our catalog, Section 8. 


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TBV Vol. XII-1.1 

Miniature Microdrives 

Miniature Microdrives are devices for performing single or multiple cell recordings in small 

mammals. They are manually operated. We make two types of Miniature Microdrives, The Biela 

model (3-MMB-1) and the Miniature Model (3-NRMD series). 

The Biela Microdrive uses a unique system to provide non-rotating linear movement of the 

electrode. It is designed to be used with either four each glass micropipette electrodes, a bundle of 

fine wire electrodes or a single electrode. The electrodes pass through the device and are insulated 

by Teflon tubing (glass pipettes do not require the insulation). One full turn of the thimble results in 

.0156 inches (approximately .4 mm) of advancement of the electrode. The electrode is normally 

fastened with duco cement or a small amount of acrylic to the insulating tube that protrudes through 

the top center of the thimble. The microdrive is mounted on the subject’s head with a threaded 

mounting device fastened with acrylic. The microdrive then becomes removable when not in the 

experimental set up. A cap with plug is provided to seal the mount to prevent debris or infection 

from reaching the surface of the brain. It is normally used on anesthetized animals; but can be used 

in awake animals if they are appropriately restrained. 

Another situation where the Biela Microdrive can serve as a useful research tool is with a 

mount that fits inside of 6-YGD-D1, Standard Grid, or the 6-YGD-D2, Offset Grid. This would be 

used in awake monkeys for long-term chronic implants in a situation where you would need to move 

the electrode from one position to another without changing the X-Y location. To change the X-Y 

location retract the electrode into the guide tube, remove and select another hole in the grid to start 

another series of depth recordings. We also have available a double eccentric mount that is not used 

with the grid but allows for wide coverage and many penetration sites in a cylinder that is 34 mm 

inside diameter. 

The Miniature Microdrive (3-NRMD) is a different style of manually operated microdrive, 

which comes with six options. This permits a multitude of ways this unit can be utilized. For 

example, attach it inside the Standard (6-YGD-J1) or Offset (6-YGD-J2) Grids. When the Grid is 

inverted one or more microdrive units can be attached. For placement within the Grid one can use 

either the model with the Asymmetric Foot or with the Symmetric Foot. Each of those styles comes 

with optional 1, 2, or 3 Electrode Holders. 


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Tech Brief Vol. XII-3.1 

Recording Chambers, Caps and Adaptors 

Crist Instrument has been a major provider of Recording Chambers, Caps, Adaptors and 

Grids for many years. They have been designed to permit a wide variety of choices when studying 

the brain. Recording Cylinders recommended by Crist Instrument are available for “Single Cell” 

and “Multi Cell” recordings in either the near term or the chronic environment. Caps provide a 

protective cover to the dura when placed atop the Recording Chamber. The Adaptor is the holder for 

the Grid and serves as the interface between the Chamber and the Microdrive. The Grid is the device 

that provides accurate spacing (1mm) and alignment (A/P) of the penetration sites when performing 

single and multi cell recordings. 

Recording Chambers (Cylinders) can be placed on the skull in a number of different 

locations. This is achieved by varying the angle at the base of the cylinder from “0” degrees to “45” 

degrees. “0” degree Chambers can be placed on the flat area of the skull to achieve vertical 

positioning or can be placed on the side of the skull for compound angle or straight in penetrations. 

Angle Chambers are used principally to provide a pattern with a common plane, i.e. horizontal; even 

when working to the periphery of the skull. These devices are attached during surgery using the 

Cylinder Alignment Tool (6-YSC-S2J or 6-YSC-S2S) the materials they are available in include 316 

Stainless Steel or CILUX. Bases of the Chambers are knurled to provide grip when attaching to the 

skull with acrylic. Stainless Steel units have an overall diameter of 7/8 inch (22.2 mm) with an 

inside diameter (id) of 3/4 inch (19 mm). The overall height of the “0” Chamber is 5/8 inch ( ). The 

CILUX devices overall diameter is a bit larger 1 inch (25.3 mm) to provide extra strength in the 

plastic and the id is 3/4 inch (19 mm). The height of the “0” degree Chamber is .75 inch ( ). Angle 

Chambers are measured in a minus direction from horizontal anti clockwise for what ever angle up 

to 45 degrees. The length of the short side of the chamber is the same as the “0” Chamber in the 

respective material. The “New MRI Style” made from CILUX has two opposing nylon screws for 

securing the grid in the chamber. This requires hand drilling into the CILUX Grid for the screws to 

grip. Many clients prefer this type of set up. It has the following drawbacks, it is difficult to remove 

the Grid and realign it in the same place when you want to clean the dura. The advantage appears to 

be use of a shorter chamber, i.e. without adaptor. There is also a Pin Style that uses 3-cone point set 

screws to secure the grid in the Adaptor. The removable pin style adaptor is preferred due to its 

repeatability when removed and replaced. 

The adaptor is made either of CILUX or 316 Stainless Steel. The adaptor also has the option 

of 3 additional positions, increasing the penetration sites. When you remove the adaptor the grid is 

locked inside it in a pre-selected position. 


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TECH BRIEF XIII-1.4 

MRI Primate Chair 

The Crist Instrument Co., Inc. in collaboration with Varian Corporation have developed a vertical 

design for primate chairs to be used with Awake monkeys in the MRI/FMRI. The chair consists completely of 

non-metallic materials including the head holding and positioning apparatus mounted to a cylindrical body. 

As many MRI machines are horizontal Crist Instrument Co., Inc. also developed a horizontal model. The two 

models; one for the horizontal bore MRI and one for the vertical bore MRI machines can be designed and 

fabricated in sizes to fit the bore of your machine. The current models accommodate primates between 7 to 9 

kilos. Other sizes may be custom designed if your need exists. All MRI chairs are built to order upon receipt 

of purchase order. This is necessary due to the lack of tolerances in available materials. 

Working within strict parameters, we have found that CILUX is an adequately strong material to 

manufacture the head post and its supporting structure. The design we have used allows for some 

manipulation of the head position. The Head Holder on the Head combines with the stem that is held in the 

positioning structure of the chair in a reliable and error free Anterior/Posterior position. 

Both models are tubular in shape and have an overall outside diameter from 10 ½ inches (26 ¾ cm) to 

12 ½ inches. The horizontal chair is carried on a cradle in the horizontal position such that the head of the 

animal can be inserted into the MRI for studies. The monkey would be looking toward the rear of the magnet 

tube where it can be presented with a variety of stimuli. MRI Chair Models (1-CCM-V and 1-CCM-H) 

include: A removable waste tray; the Head Holding and positioning apparatus; an adjustable Perch Bar for 

standing or kneeling; ventilation holes in the rear of the chair and other features. One Interlocking MRI Style 

Chair Positioner on the Chair (6-FHD-J9) is also included; however, if extra units are required, they can be 

purchased separately. One matching Interlocking Head Holder on the Head (6-FHP-J9) is also included. One 

of these units is required for each research subject used in the MRI Chair. The Interlocking MRI Style Chair 

Positioner and the Interlocking Head Holder on the Head are made from CILUX. 

The MRI tube (bore) diameter is the controlling factor. Options include a rear door that provides 

access to the animal. Other options can be designed to meet specific investigator needs. 

These chairs have been carefully designed for normal use and cleaning. Few parts need to be removed 

from them, nearly eliminating the chance of lost or misplaced parts, including bolts. As always, there are no 

sharp edges anywhere on our chairs. For technical assistance and comments or technical suggestions, contact 

Mike Crist, Chair Department, or Chuck Crist, V. P. Engineering. 


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TECH BRIEF Vol. XIV-1.3 

PRIMATE CHAIRS 

Crist Instrument is known to make one of the most versatile primate chairs for your research 

requirements. We manufacture these chairs with the primate’s health and well being in mind while 

facilitating diverse usage by the researcher. Many of our chairs presently come in a variety of different 

models and sizes to fit your experimental protocols. Because of our many years of experience with a number 

of laboratory environments you may find existing models that meet your needs. You will find that many of 

the features are present in each of the different models and sizes. In some cases you may want to select 

features present in one chair and incorporate them on another. If that is what you need, we will find a way to 

do that also. In addition, since our chairs are semi-custom, we can design a chair to meet your unique needs 

when models featured in our catalog are not appropriate for your protocols. 

Our chairs are made from high impact polycarbonate with corners that are reinforced with our custom 

aluminum frame to minimize cracking of the plastic. For the researcher this translates into a tough, sturdy 

chair, which can be cleaned and sterilized. In addition, all parts are replaceable. This permits easy changes 

and modifications as your research progresses; or, if a part is damaged, replacement of that part only. 

Because health and safety are a prime consideration, many features are designed into all chair models 

to meet the highest standards. For example there are no sharp edges to come in contact with the animal. The 

Neck Plates were designed to provide restraint while allowing full mobility of body and limbs. It provides a 

range of positions without chafing when properly adjusted. The fully adjustable platform (Perch) allows the 

primate to crouch comfortably and naturally. This design aides in the prevention of atrophy and strain on the 

leg muscles. It is fabricated of stainless steel and aluminum to provide a continuity contact point for the use 

of a Touch Bar or other sensor. Another unique feature in all of our chairs includes the waste tray which is 

easy to remove without disturbing any of the chair settings or the comfort of the animal while experiments are 

in progress; thus, providing greater health and cleanliness for both the primate and the researcher. There are 

presently five distinct models and four different sizes. For example the spacious 10” x 10” x 23” compartment 

of the Standard size chair provides ample room for primates up to 9 kilograms. Most Models are ordered with 

either the Travel Trolley or the Taller Base and can be easily removed and reattached as needed. 

Our smallest chair, the MINI CHAIR, was designed by Crist Instrument staff to contain Squirrel 

Monkeys and similar size primates. Between the MINI Chair and our STANDARD Chair, that holds primates 

between 6 and 9 kilos, is our SMALL Chair made for primates ranging in weight from 2 to 6 kilos. The 

LARGE chairs have compartments capable of containing primates up to 15 or 16 kilograms. 

The Training or Vision Chair (one of our most popular models) comes in all four sizes, Standard, 

Small, Large and Mini for New World Monkeys. These Chairs all come with a Touch Bar built into the front 

panel as standard equipment for training and for eye-hand responses. The Side Head supports and Top Plate 

are designed to provide maximum rigidity and stability in holding the head in a fixed position, even when the 

monkey is moving about in the chair. This head brace can be modified in a number of ways to accommodate 

a variety of experimental modes. This Chair comes standard with the Tall Base, which includes large 5” 

locking swivel casters making it easy to roll over thresholds and elevator entries. The Tall Base Model places 


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the eye height of your primate at approximately 47 to 48 inches from the floor. The base is pre-drilled to 

accommodate the Chair Positioner (1-V-50 series) for attaching to the floor. For those who prefer, the Travel 

Trolley is available. It has a 2-inch non-locking caster and is an excellent choice when using our Isolation 

Chamber. 

Another popular model is very similar except the Touch Bar is attached to a removable panel. This 

panel can be exchanged for a Joy Stick or other device. Normally it includes a low transport trolley instead of 

the taller base. This chair can be easily removed from the Trolley and inserted into an Isolation Chamber or 

other activity module. It is also available in the same four sizes. 

The TV Front Model is the perfect choice for behavioral or other studies that require some tasking or 

the use of a Touch Sensitive TV Screen. The basic design model controls which hand is to be used for 

reaching out; the left, the right or both hands can be tested. This model also includes a waist restraint to 

prevent the extension of feet through the front opening. When transporting from place to place, the Safety 

Barrier Plate keeps hands and feet inside. TV models are available in four sizes with either the Travel Trolley 

or the Tall Base. 

When large movements are required of arms or legs the Open Front and Sides Model is the one to 

select. It is the perfect choice when “reach out”, and manipulative tasks to the side are required. The “Open” 

Chair does not include head restraints; but, they can be added if needed. This model also features the Waist 

Restraint and comes with a Travel Trolley. This chair is presently made to accommodate the 4 to 9 kilo 

monkey. Tall Bases are available upon request as part of your individual requirements. 

Last, but not least in this line up of chairs is the model built for Audio Studies. It is very similar to 

the Standard Training Model. Its differences include a front opening door and the Special Base, which 

supports a Rear Head Restraint. This permits approximately 350 degrees of unobstructed work area in the 

horizontal plane. We believe that the vertical work range extends from “0” at the top of the chair to 

approximately 30 degrees below horizontal due to the interference of the chair main body. Several variations 

of this Chair exist as well. 

When none of these models are quite right for your individual needs please call our engineer. We 

will be happy to discuss your Chair requirements with you. To receive a more detailed list of chair 

components, as well as other equipment and apparatus manufactured by Crist Instrument, complete the 

attached mailer. We look forward to assisting with your research needs. 


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TECH BRIEF VOL. XIV-3.3 

RECORDING CYLINDERS, GRIDS AND ADAPTERS 

Crist Instrument Co., Inc. has been a major provider of Recording Chambers, Caps, Adapters 

(Smokestacks) and Grids for many years. They have been designed to permit a wide variety of choices when 

studying the brain. Recording Cylinders manufactured by Crist Instrument Co., Inc. are available for single 

cell and multi-cell recordings in either the short term or the chronic environment. Caps provide a protective 

cover to the dura when placed atop the Recording Chambers. The Adapter is the holder for the Grid and 

serves as the interface between the chamber and the micro-dive. The Grid is the device that provides precise 

spacing (1mm) and alignment (A/P) of the penetration sites when performing single and multi-cell recordings. 

Our Chambers, Caps, Adapters and Grids are available in a variety of styles and materials. 

Recording Chambers (6-IAC-S0 and SA, 6-IAM-J0 and JA, 6-ICO-J0 and JA, 6-ISM-J-xx, and 6- 

ISC-xx series) are available in one or more of the following materials: 316 Stainless Steel, Titanium or 

CILUX. All of our cylinders include knurled bases to facilitate attachment to the acrylic skullcap. The 

Stainless Steel units have an overall diameter of 7/8” (22.2 mm) with an i.d. of ¾” (19 mm). The height of 

the stainless steel units is 5/8” (16 mm). This also applies to the Titanium Chambers. The CILUX units have 

an overall diameter of 1” (25.3 mm) and an i.d. of ¾” (19 mm). CILUX Chambers have a height of ¾” (19 

mm). Chambers have been made from Stainless Steel for years and are highly reliable. Titanium and CILUX 

are both used in the FMRI. CILUX, of course, is the most transparent. Titanium is useful in the MRI if it is 

located far enough away from the target site to avoid the shadowing that occurs. 

We have one style Stainless Steel Chamber (6-IAC-S0, “0” degree, and 6-IAC-SA-xx, Angled degree 

to 60”). These chambers are sturdy and rugged. They will last many years and can, with thorough cleaning, 

be reused. When placing the Grid in the Chamber the same technique is used as described below for the MRI 

Pin Style Chamber. The only drawbacks are their greater weight and the fact that they cannot be used in MRI 

equipment. 

There are two MRI style Chambers. Each style uses a different option for securing the Grid within 

the Chamber. The older style (6-ICO-J0 and JA-xx) uses two screws that screw directly to the Chamber and 

into the Grid. This method is not as precisely repositioned when the Grid has to be removed to clean or 

scrape the dura. The MRI style with opposing screws does not require an adapter. The microdrive mounts 

directly on to the Chamber. The Pin Style MRI Chamber (IAM-J0 and IAM-JA) is especially good for 

accurate repositioning of the grid in the same place every time. In addition, it offers three more positions for 

the Grid thereby tripling the number of penetration sites. The Grid Adapter grips the grid with three cone 

point screws. We recommend when turning the screws that the investigator does not over-tighten. The grid 

slides down into the Chamber until it is positioned with the Grid Adapter on the outside of the Chamber and 

three more cone point screws grip the ring groove around the top of the Chamber. (Again do not over-tighten 

these screws.) As stated before, this system is extremely reliable for repositioning when the Grid has to be 

removed. 

Due to the need for other research subjects such as New World Monkeys, Felines, Rodents and other 

small animals we are manufacturing a smaller line of Chambers. These Chambers are available in Stainless 


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Steel and CILUX. The feline Chamber is identical in inner and outer diameters and has the same pin 

arrangement as the standard primate chambers. Because the skull of a feline is more square with a sharper 

radius as you move outward to the edge of the skull we have found it necessary to modify the angle by 

curving the chamber base rather than a straight angle cut. When selecting the Stainless Steel material ask for 

part number 6-ISC-S-xx. The CILUX model part number is 6-ISC-J-xx where “xx” indicates the degree of 

angle you require. The New World animals require a smaller chamber. The sizes of these Chambers (6- 

ISM-S-xx and 6-ISM-J-xx) are as follows: the i.d. is .5118” (13 mm) and the o.d. is .630” (16 mm). The 

overall height of the “0” degree Chamber is ½” (12.65 mm). It is turned down at the top to a diameter of .59” 

(14.986 mm) and also has a groove for attaching an adapter if one is needed. The locating pin is provided on 

one side for positioning repeatability. It is available in angles from “0” to 60 degrees. 

The smaller Chambers function very much the same way as our larger Chambers for primates. 

Placement on the skull in a given location is achieved by varying the angle of the base of the Cylinder from 

“0” degrees to 45 degrees. This angle is used to correct the curvatures of the surface of the skull falling away 

as you move to the outer fringe. With the Chamber held in place by the Alignment Tools you can fill the 

voids that occur between the bottom edge of the chamber and the skull with the acrylic. This will maintain 

when properly done a perfectly vertical penetration resulting in the accurate planar mapping of the selected 

area. 

Any of these units need to be aligned and attached during surgery using The Grid Alignment Tools, 

set number 6-YSA-SET-1A. This is done to assure that all elements are located in the correct grid position of 

the horizontal plane and are absolutely vertical unless otherwise desired. Any angles or variations in 

positioning must be recorded at this time to assure an accurate map. 

The Chambers, Grids and Adapter mentioned here are the recommended standard styles and sizes that 

we normally stock. We also supply Chambers in a variety of shapes and sizes with matching Adapters or 

devices to use the Narishige type MO 95 microdrive. 

Placement on the skull in a given location is achieved by varying the angle of the base of the cylinder 

from “0” degrees to 45 degrees. This will maintain if properly done a perfectly vertical penetration resulting 

in the accurate planar mapping of the selected area. 


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Crist Instrument Co

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