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

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2.1.2 Design 2The biggest changes from the first design include a section for buttons, achange in the mounting configuration, a rudimentary graphical user interfaceconcept, and simple formatting changes.Buttons became a very important portion for the second design because theywill be the connection between the user and the inner workings of the interface.The most simplistic design was used when conceiving the buttons. This was doneso that a user with multiple limitations would be still be able to navigate theinterface without being overwhelmed or confused. Basic shapes were used forthe first concept and can be seen below in fig. 2.1.2.1.Figure 2.1.2.1: Possible Button Layout from Design TwoPatients that have bad or no vision must be able to also use the interface andall of its functions. This was accomplished by choosing different shapes for eachcorresponding button. An elementary layout for the interface was also conjuredup for the second design as seen below in Fig. 2.1.2.2.Figure 2.1.2.2: Possible button layout with separate areas for information inputThe buttons were separated by the LCD for two main reasons. Firstly, theinterface is visually symmetric when the LCD is placed in the center. Secondly,by separating the arrows and the confirm/back buttons, the user will need toscan across the LCD before deciding to continue to the next screen. This isbeneficial because the user will always be having critical information displayedon screen when they are setting up the next infusion rate and time. The risk for17
misdosages is reduced by forcing them to scan across the entire interface whenconfirmation screens are encountered.Mechanically our design stayed very similar with the exception of the mountingoption for the IV pole. The original design mimicked the c-clamp that is placedon the Baxter Flo-Gard series of infusion pumps and can be seen below in Fig.2.1.2.3.Figure 2.1.2.3: Moffatt Products C-Clamp Base for Use with Flexible ArmSince this design doesn’t have the angle that is incorporated into the Baxter Flo-Gard series, the clamp will likely slip and wouldn’t be able to support the weightof our design. To solve this problem we changed our design towards amachined mounting block. The mounting block will have a three inch area thatwill connect to the IV pole along with a screw with a wing nut to tighten theblock around the pole. The three views below in Fig. 2.1.2.4 through Fig. 2.1.2.6show the basic form of the mounting block.Figure 2.1.2.4: Flexible arm mounting block top view18
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: Top Level MenuSetting infusionrates
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 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
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Figure 2.2.2.12.1: Pump head assemb
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2.2.2.13 Anaheim Automation PCL601
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Table 2.2.2.13.1: Specifications fo
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Figure 2.2.2.14.2 TM4500 dimensions
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The interface must also be evaluate
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Figure 2.3.3: Opening the Pumping U
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Figure 2.3.5: Back Panel Dismounted
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Figure 2.3.8: Connecting the Power
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The metal arm connecting the two mo
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Figure 2.3.13: Two of the Six Bolts
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LCD DisplayButtonJoystickFigure 2.3
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Figure 2.3.18: Charger and Female C
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BatteryFigure 2.3.21: BatteryFigure
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Figure 2.3.24: Pumping Unit Connect
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Figure2.3.26: DriverTesting of the
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"strand” the user.• Give users
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surfaces and electric static discha
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through all necessary steps before
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Adding new components has brought w
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The next step was creating the all
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With the integration of a colored L
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http://www.metalsdepot.com/products
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12 Appendix12.1 Updated Specificati
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