Accessible Infusion Pump User-Interface - Biomedical Engineering ...

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- Pentium® 166 MHz or higher, Minimum of 32 megabytes of RAM- Windows® 2000, Windows XP- One available USB connectorBy designing an appropriate algorithm within LABview in our design laboratory,we will be able to install the program into the Blackfin chip and allow it toreceive input data (i.e. infusion rate, volume flow rate, time, etc) from theinfusion pump, and graphically display the appropriate values onto our colorLCD.2.2.2.11 Case / PackagingSince the interface must be small enough to not be intrusive, yet still retain all theaccessible features, packaging becomes an important aspect of design. Therewill be two casing: LCD – interface casing, and motor-pump – battery casing.The LCD is 6.5” x 3.9375” and will be the center entity for our interface because itwill be communicating the information to the patient. Placing the LCD in thecenter of the casing means the rest of the features should be designed aroundits placement. The button layout places the confirmation and cancel button onone side with the toggle joystick for number and menu selection on the other.The buttons are roughly one and a half inches across for both the confirmationcircle and square cancel. The toggle joystick needs to be mounted in an areathat is roughly 1.5” by 1.5”. Simple addition of these dimensions gives anabsolute minimum length of 9.5” and a minimum width of 4”. Since thecomponents on the interface can’t be touching or overlapping on theinterface, the minimum dimensions should be increased to 11” x 5.5”. Withdimensions that are fairly uncommon it’s most effective to create our own boxout of ABS and industrial gllue. We will accomplish this by using a sheet of ABSthat’s .25” thick cut to 11” x 5.5” and beveling the edge at 45 degrees. Witheach piece except the back panel being beveled at 45 degrees, the surfacearea for the glue increases to create a sturdier enclosure. On the backside ofthe plastic enclosures we will use screws to allow for the back to be removable.An example of the ABS sheet in both white and black, glue and applicator isshown below in Fig. 2.2.2.11.1.Figure 2.2.2.11.1: ABS plastic sheet model from rplastics.com63
Figure 2.2.2.11.2: ABS Weld-On glue from rplastics.comFigure 2.2.2.11.3: ABS Weld-On glue possible applicators from rplastics.comExamples of the pieces that will be used for making the enclosure are includedbelow. The left side is pictured with dimensions but is a mirror image of the rightside. The same is true for the top and bottom. The back portion of the enclosurewill be connected with screws through the extra ABS added to each sideportion. By using screws through the back panel it will be removable for serviceand changes.64
Page 11 and 12:
e connected to the microprocessor r
Page 13 and 14: acket will be mounted directly to t
Page 15 and 16: Circuit ElementsThe physical link b
Page 17 and 18: Top Level MenuSetting infusionrates
Page 19 and 20: misdosages is reduced by forcing th
Page 21 and 22: Figure 2.1.2.7: Graphic User Interf
Page 23 and 24: Figure 2.1.3.2: Engineering drawing
Page 25 and 26: Figure 2.1.3.4: Labview-base Blackf
Page 27 and 28: Figure 2.2.1.1: Basic Circuit Desig
Page 29 and 30: Figure 2.2.2.1.2: LCD DimensionsTab
Page 31 and 32: Figure 2.2.2.2.2: Engineering drawi
Page 33 and 34: Figure 2.2.2.4.1: Rechargeable Lead
Page 35 and 36: It is important that operation of t
Page 37 and 38: Specifications (Note: dimensions in
Page 39 and 40: Figure 2.2.2.6.2: Bracket top view
Page 41 and 42: On the casing that will contain the
Page 43 and 44: Figure 2.2.2.6.9: Casing mounting b
Page 45 and 46: death. This makes the auditory outp
Page 47 and 48: Figure 2.2.2.8.1: Basic Circuit Des
Page 49 and 50: Figure 2.2.2.9.1: Display Screen Fl
Page 51 and 52: Audio Output: “Infusion Rate Inpu
Page 53 and 54: Audio Output: “Flow rate is” Ou
Page 55 and 56: Audio Output: “To start infusion,
Page 57 and 58: Audio Output: “Infusion Rate Inpu
Page 59 and 60: Audio Output: “Flow rate is” Ou
Page 61 and 62: Audio Output: “Infusion starting
Page 63: Figure 2.2.2.10.2: Labview-base Bla
Page 67 and 68: Figure 2.2.2.11.6: User Interface U
Page 69 and 70: Figure 2.2.2.12.1: Pump head assemb
Page 71 and 72: 2.2.2.13 Anaheim Automation PCL601
Page 73 and 74: Table 2.2.2.13.1: Specifications fo
Page 75 and 76: Figure 2.2.2.14.2 TM4500 dimensions
Page 77 and 78: The interface must also be evaluate
Page 79 and 80: Figure 2.3.3: Opening the Pumping U
Page 81 and 82: Figure 2.3.5: Back Panel Dismounted
Page 83 and 84: Figure 2.3.8: Connecting the Power
Page 85 and 86: The metal arm connecting the two mo
Page 87 and 88: Figure 2.3.13: Two of the Six Bolts
Page 89 and 90: LCD DisplayButtonJoystickFigure 2.3
Page 91 and 92: Figure 2.3.18: Charger and Female C
Page 93 and 94: BatteryFigure 2.3.21: BatteryFigure
Page 95 and 96: Figure 2.3.24: Pumping Unit Connect
Page 97 and 98: Figure2.3.26: DriverTesting of the
Page 99 and 100: "strand” the user.• Give users
Page 101 and 102: surfaces and electric static discha
Page 103 and 104: through all necessary steps before
Page 105 and 106: Adding new components has brought w
Page 107 and 108: The next step was creating the all
Page 109 and 110: With the integration of a colored L
Page 111 and 112: http://www.metalsdepot.com/products
Page 113: 12 Appendix12.1 Updated Specificati
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