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Imagine a fully-featured Sleep System that records to your<br />
computer without tying patients down with awkward cables!<br />
AURA PSG will make the job of the technician easier while<br />
providing more comfort to the patient and better recordings for<br />
the physician.<br />
This powerful, easy-to-use PSG system consists of the high<br />
quality 25-channel AURA PSG Amplifier System with built-in<br />
electrode/sensor inputs and built-in oximeter designed<br />
especially for PSG, and TWin PSG Record and Review<br />
Software. Grass's powerful Panorama ® digital video option,<br />
FASS ® Fully-Automated Sleep Stager, and a wide selection of<br />
supplies and accessories are also available.<br />
AURA PSG LAB-BASED (MODEL AUXL-P)<br />
AUXL-P is a complete PSG system designed to satisfy the needs of the<br />
physician’s office, hospital, or medical center. Ready to use, AUXL-P is<br />
supplied with the latest high performance PC. A DC Input Module is<br />
included for an additional 8 channels. Select from various mobile carts,<br />
cabinets and monitor sizes to suit your needs.<br />
AURA PSG PORTABLE (MODEL AUP-P)<br />
AURA PSG Portable is supplied with the latest high-performance laptop<br />
computer. A wide selection of accessories can be added.<br />
FEATURES<br />
• Wireless, in-lab applications<br />
• Ambulatory, out-of-lab applications<br />
• 25-channels<br />
• Built-in Pulse Oximeter<br />
• Built-in Electrode/Sensor Connections<br />
• Pulse Transit Time (PTT)<br />
• Automatic Sleep Report Generation<br />
• Compact design that is rugged, lightweight, and easy to wear<br />
• Limited Lifetime Warranty on Grass manufactured parts<br />
25-channels...<br />
13 referential electrode inputs<br />
2 reference electrode inputs<br />
7 differential inputs<br />
2 DC coupled inputs<br />
1 connection, pulse-oximeter sensor<br />
...with the quality expected from<br />
a Grass amplifier.<br />
2
At the heart of the AURA PSG system are Grass designed and<br />
manufactured amplifiers. Grass amplifiers are world-renowned<br />
in the field of sleep diagnostics for their quality, reliability,<br />
simplicity, and serviceability. The amplifier is designed<br />
specifically for the sleep monitoring lab and combines the<br />
latest digital design techniques with decades of amplifier<br />
design and manufacturing experience.<br />
The amplifier system provides for patient safety isolation, signal<br />
conditioning (physiological signal amplification and filtering), and<br />
digitization. A host computer, using TWin software, starts and stops the<br />
data transmission and monitors the digitized data.<br />
AURA PSG Amplifier<br />
An intuitive user interface with LCD screen is present with the Base<br />
Station. From the Base Station, a user is able to implement such features<br />
as electrode impedance checking and amplifier calibration. Also from the<br />
LCD display the user is able to obtain information such as connection<br />
status to the host computer, and oximetry/pulse rate information when an<br />
oximeter is in use.<br />
WIRELESS MODE<br />
Using wireless Bluetooth ® technology, AURA PSG can be used for in-lab<br />
and portable sleep diagnostic testing. The lightweight amplifier system is<br />
worn by the patient in a comfortable pouch. Electrode and sensor<br />
connections are conveniently made directly to the AURA PSG. Typical<br />
polysomnographic signals are conditioned and<br />
digitized in the AURA PSG, and then<br />
transmitted to the Base Station for real-time<br />
data acquisition. Data is stored directly to<br />
the computer.<br />
The 8-channel DCM8 DC<br />
input module can be<br />
connected to the Base Station<br />
for a total of 33 recorded<br />
channels. Analog signals from<br />
devices such as Capnometers,<br />
DCM8 DC Input Module<br />
CPAP units, pH Meters, etc, can be<br />
connected to the DC input module. This flexibility allows for wide range of<br />
physiological parameters to be monitored and recorded.<br />
AMBULATORY<br />
AURA PSG can also store data directly to a removable CompactFlash ® card<br />
for out-of-lab sleep diagnostic testing. The lightweight amplifier system is<br />
worn by the patient in a comfortable pouch. Electrode and sensor<br />
connections are conveniently made directly to the AURA PSG. Typical<br />
polysomnographic signals are conditioned and digitized in the AURA PSG,<br />
and then stored directly to the CompactFlash card. The AURA PSG can<br />
easily be configured to “start up” at a user specified date/time. Data will<br />
be recorded from that point forward. When the study is complete, data<br />
from the CF card is uploaded via Grass's TWin software.<br />
The AURA PSG Amplifier System can also be used in a tethered mode. If<br />
tethered, no battery is needed as the AURA-PSG is powered by the Base<br />
Station and the data is stored to the computer.<br />
AURA PSG Base Station<br />
SUPPORT & SERVICE<br />
All Grass instrumentation is backed by a knowledgeable support staff<br />
ready to respond to all of your needs. Technical support is available 24<br />
hours a day, 7 days a week. Request information on our Customer Support<br />
Plans. Training is also available.<br />
3
TWin PSG is the software that brings<br />
everything together! Many years of<br />
dedication to the field of sleep<br />
diagnostics has allowed<br />
Grass to develop a software platform<br />
that is easy to use, yet flexible<br />
enough to expand upon.<br />
Easy Setup: With TWin's simplified installation package, utilize the<br />
predefined list of annotations, keyboard events, PSG events, or montages<br />
to set up the PSG system quickly.<br />
User Profiles: Use Profile Manager to configure a profile for each<br />
technician or physician using the system. Their montage, trace color,<br />
record configuration, review setup, and other preferences are stored and<br />
loaded at any time.<br />
Montages: Create virtually an unlimited number of montages, off-line or<br />
realtime, with the intuitive Montage Editor. Average A1 and A2 to eliminate<br />
artifact, average referencing, assign specific channel types to facilitate<br />
event scoring, and colored tracings are some of the features within the<br />
Montage Editor.<br />
Recorder: The recording module opens instantly, with just a double-click<br />
on the TWin "start-up" icon. Easily perform impedance checks,<br />
calibrations, and montage adjustments. Entering user-defined events and<br />
annotations is as simple as a single keystroke. Accurate, high-quality<br />
digital PSG recording is guaranteed.<br />
Sleep Staging and Scoring Comparison<br />
for inter-lab QA comparisons<br />
Sleep Scoring: Stage and score<br />
recordings efficiently and accurately. A predefined list of stages and scores<br />
can be utilized, or create new events to meet your specific needs.<br />
Computer assisted sleep scoring is available for Respiratory, Leg<br />
Movement, Snore, Bruxism, and Desaturation events. Automatic Arousal<br />
correlations and EKG, body position, and DC channel trending is also<br />
available. Finally, utilize the Sleep Scoring Comparison Module to assist<br />
with inter-lab QA comparisons.<br />
Archive Manager Software: Included with the system is TWin's Archive<br />
Manager software. Archive Manager allows easy archiving of the studies to<br />
different types of media, such as CD or DVD.<br />
Reviewer: TWin's intuitive database makes it easy to bring up a patient<br />
study for quick review. Utilize keyboard or on-screen controls to navigate<br />
through a record. Amplitude and measurement tools, along with zoom<br />
capabilities allow the user to accurately analyze specific waveforms.<br />
Potential Mapping and Spectral Analysis tools are included with TWin for<br />
advanced data review.<br />
Reports: Select from various pre-configured single and multi-page sleep<br />
reports! Use Sleep Report Wizard to create additional sleep report<br />
statistics. Customization of reports can be implemented to meet the<br />
specific needs of your sleep lab. Reports include examples of diagnostic,<br />
therapeutic, split-night and MSLT/MWT reports.<br />
4
TWinLOOK ® REVIEW SOFTWARE<br />
• Review patient data anywhere<br />
• Friendly, easy-to-use interface<br />
• Ideal for sharing data with colleagues<br />
TWinLOOK is a view-only review package that offers a friendly interface<br />
allowing physicians and technicians to quickly and easily review a patient<br />
study. Change montages, sensitivities, and trace colors, along with fast<br />
reviewing of the patient data, and digital video and audio that is<br />
synchronized with the patient data.<br />
TWin exports the calculated sleep statistics, hypnogram, graphs, and trends to a<br />
familiar Microsoft Word template. Also export EtCO2, TCO2, or PCO2 data to useful<br />
breakdown tables.<br />
Any TWin-based study, along with its synchronized digital video/audio, may<br />
be transported on a writable CD or DVD. Then, using the disk in a<br />
Windows ® XP-based PC, review that study and digital video/audio.<br />
Physicians and hospitals can send data acquired in their laboratory to<br />
others for review, facilitating exchange of data with referring physicians,<br />
colleagues, collaborators, and/or to obtain a second opinion.<br />
Fully-Automated Sleep Stager (FASS) is an add-on analysis<br />
module for TWin ® PSG review software. FASS software<br />
identifies standard Rechtschaffen and Kales sleep stages<br />
automatically, deriving information from various parameters of<br />
the EEG, EOG, and Chin EMG.<br />
FASS is extremely accurate and easy to use. With FASS, a sleep study is<br />
completely staged in less than one minute, providing a great time<br />
savings to the sleep lab.<br />
FASS uses a rule-based approach to sleep staging, which combines<br />
automatically-detected sleep events (spindles, phasic REM, etc.) with<br />
automatically-computed parameters (FFT frequency analysis,<br />
amplitude, etc.), to replicate Rechtschaffen and Kales sleep staging.<br />
FASS provides full staging of wakefulness, all 5 stages of sleep, and<br />
automatic arousal detection.<br />
5<br />
Two levels of analysis are performed by FASS: individual page analysis<br />
(First Pass), and context and stage transition analysis (Second Pass).<br />
During the First Pass, FASS assigns a sleep stage to each page. The stage<br />
is determined based on a decision flow chart that takes into account the<br />
presence/absence of sleep events and the values of the computed<br />
parameters on that page. During the Second Pass, FASS applies context<br />
rules (3 minute rule for Stage 2, REM continue rule, etc.) and stage<br />
transition rules (REM-to-Wake, Stage 1-to-Wake, etc.).<br />
The comprehensive user interface of FASS permits changing some of the<br />
staging parameter thresholds and rules, as well as default settings.<br />
Amplitude and EEG frequency trends, such as Delta and Alpha percentage<br />
trends and Chin EMG amplitude trends, are also computed and can be<br />
displayed on the PSG timeline along with the sleep staging hypnogram.<br />
FASS creates a fully-staged study that can be reviewed, modified, and<br />
exported to a standard report. The study results can be compared to an<br />
expert PSG scorer’s staging using TWin’s Scoring Comparison program.
AMPLIFIER SPECIFICATIONS<br />
Amplifier Grass AURA PSG system<br />
13 referential electrode inputs<br />
2 reference electrode inputs<br />
7 differential inputs<br />
2 DC coupled inputs<br />
1 pulse-oximeter sensor connection<br />
Referential Electrode Inputs<br />
Input Signal Range 4 mV peak to peak full-scale<br />
Input Impedance 12 Megohm or higher, all inputs including reference<br />
Differential Input<br />
Impedance 20 Megohm or higher<br />
Amplitude Accuracy ±2.5 % (prior to software correction)<br />
CMR (60 Hz) >80 dB (signal referenced)<br />
>100 dB (earth reference)<br />
Noise<br />
100 dB (earth reference)<br />
Noise<br />
ENHANCED FEATURES INCLUDE:<br />
• Full-screen digital video with waveform data overlay which allows<br />
waveforms to appear over the video image<br />
• Full window resizing during both acquisition & review<br />
• Virtual Pan & Zoom features during both acquisition & review<br />
• Grass MPEG4 video compression for 640 x 480 NTSC<br />
(768 x 576 PAL) high resolution video with ultra low data rates<br />
This optional video package uses<br />
the latest Grass MPEG4-based<br />
video compression. Panorama<br />
permits the user to store highresolution<br />
video in half the disk<br />
space that used to be required for<br />
320 x 240 NTSC (384 x 286 PAL) pixel video. Essentially this results in an<br />
increase of 4 times in picture quality in half the disk space. A complete line<br />
of cameras, monitors and infared lighting, is also available.<br />
PSG TRANSDUCERS INCLUDING:<br />
• PSG Transducer Kits<br />
• Periodic Limb Movement Sensors<br />
• Respiration Transducers - Pressure Airflow/Snore<br />
• Respiration Transducers - Respiratory Airflow<br />
• Respiration Transducers - Respiratory Effort<br />
• Sleep Position Indicators<br />
• Snoring Sensors & Microphones<br />
• Sensor Tester<br />
• Genuine GRASS Electrodes<br />
• Large Variety of Specialty Electrodes<br />
• Genuine GRASS EC2 ® Electrode Cream<br />
• Electrode Application Products<br />
• Impedance Meters<br />
• PSG/EEG Simulator<br />
• Oximeter Sensors<br />
• PSG & EEG Educational Material<br />
• Replacement Parts & Cables<br />
For your shopping convenience all of these items<br />
may be purchased from our Online Store at:<br />
www.grassinstruments.com<br />
7
HIGH PERFORMANCE SYSTEMS<br />
from GRASS<br />
Complete systems for all your recording needs – from<br />
Lab-based to Portable to Ambulatory to Long-term Monitoring<br />
SleepTrek<br />
Portable Sleep Screener<br />
9-channels<br />
AURA24<br />
Ambulatory EEG<br />
28-channels<br />
TWin Series<br />
TWin Review Workstations<br />
Comet<br />
Portable PSG<br />
35-channels<br />
Beehive Horizon<br />
Lab-based LTM<br />
up to 128-channels<br />
®<br />
Comet XL<br />
Lab-based PSG 35-channels<br />
(up to 50-channels)<br />
Comet<br />
Portable EEG<br />
40-channels<br />
Comet XL<br />
Lab-based EEG 40-channels<br />
(up to 50-channels)<br />
E-mail: grass@astromed.com<br />
Web-site: www.grassinstruments.com<br />
World Headquarters<br />
Astro-Med Industrial Park, 600 East Greenwich Avenue<br />
West Warwick, RI 02893 U.S.A.<br />
Phone: 401-828-4000 • Fax: 401-822-2430<br />
Toll-Free Phone (U.S.A. & Canada only): 1-877-472-7779<br />
European Headquarters<br />
Astro-Med S.R.L., Via Plezzo 8, 20132 Milan, Italy<br />
Phone: (+39) 02.2641.1909 • Fax: (+39) 02.2641.2828<br />
Canadian Headquarters<br />
Astro-Med, Inc., 648 rue Giffard, Longueuil, QC J4G 1T8<br />
Phone: 450-651-7973 • Fax: 450-651-8987<br />
Toll-Free Phone (Canada only): 1-800-565-2216<br />
World Headquarters West Warwick, RI<br />
S296C06
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