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

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Table 2.2.2.6.1: Maximum load for flex arms when mounted horizontally from MoffattProducts.This is the horizontally mounted position because it maximizes the distance fromconnection point causing the moment to be the greatest. The preceding tablecomes directly from Moffatt Product’s customizable flex arm design guide.With an approximate weight of five pounds for the interface and an arm lengthof twelve inches, it’s apparent that the design will need a stronger flex arm thatcan support the weight of the unit. The best option will be to get internalstiffeners by Moffatt Products. The hollow interior of the arm can be modifiedwith these stiffening bars in order to increase the maximum weight that can beadded to the end of the arm. Also the hollow interior of the arm will provide asealed space to run the wiring from the interface to the pumping and batterycase.2.2.2.7 Text to Voice Unit:The interface’s text to voice unit is the crucial link to the project for our clientsthat suffer from visual disabilities. Without proper auditory cues, patients run therisk of delivering wrong dosing amounts which can cause serious harm or even43
death. This makes the auditory output from our interface a vital portion of thecorrect drug delivery interface system.Winbond currently produces the WTS701 which is a single chip, integrated circuitthat can convert text to speech. For our interface, we will be incorporating theDevantech Text-To-Speech Module that contains the Winbond WTS701. By usingthe module rather than design the circuit from the chip alone, our group has thecomplete hardware module that can convert the lines of text on the LCD intoEnglish. This design is also very small and includes a speaker but added a largerspeaker for clearer voice output.Figure 2.2.2.7.1: Devantech module front and back view from Acroname.comTable 2.2.2.7.1: Specifications for Devantech Text-To-Speech module.44
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: Figure 2.2.2.6.9: Casing mounting b
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 and 64: Figure 2.2.2.10.2: Labview-base Bla
Page 65 and 66: Figure 2.2.2.11.2: ABS Weld-On glue
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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