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

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Mounting Arm:Mounting the interface to the IV pole that holds the infusion pump body willallow the interface to stay close without being a burden to the pumps normalfunctioning. If the interface was mounted directly to the infusion pump, therewould be a risk of inadvertently pressing the normal interfacing buttons. Bymoving the interface off the pump and into a separate area for inputs the risk isminimized. The differentiation of the input and outputs will also give the infusionpump the ability to function without the accessible interface for professionalswho are trained to use the pumps normal features.The arm itself will be some form of Moffatt Product’s flexible arms. Since ourclients suffer from many different forms of motor impairment, an arm with only afew hinge points could be difficult to operate and adjust properly. The flexiblearm means there will be no specific hinged areas but rather a completelyadjustable design. Another beneficial design feature for the Moffatt flexible armsare the hollow interiors. The hollow interior is covered with vinyl leaving anenclosed area that the wiring can run from the interface to the IV pole.Figure 2.1.1.2: Examples of Moffatt Product’s flexible arms for a variety of applicationsThese examples show a variety of connectors and bases that can be applied tothe flexible arm. The bracket at the top left of the examples with the squarebase will be the template that will be used in the design of our bracket. This11
acket will be mounted directly to the interface and will include a center holethat the wiring will be able to run through. By allowing the wires to run directlyinto the interface they won’t be exposed and will pose less of a risk to patients.The following diagrams were drawn Microsoft Visio and include the dimensionsfor the bottom, top, and side views.On the opposite end of the flexible arm will be the bracket that mounts to the IVpole. This bracket will be the standard c-clamp that is shown to the right of theexamples, fifth from the bottom. In addition to the c-clamp, we will be using theoffset quick coupler base to allow our wires from the interface to exit the arm.Pictures of the offset base and its use in conjunction with the c-clamp follow.Figure 2.1.1.3: Offset quick connect and application of offset quick connect with a C-ClampbaseThe arm must be able to withstand the force generated by the weight of theinterface without losing shape. In order to find the appropriate strength for theflexible arm the worst possible orientation should be used.This is the horizontally mounted position because it maximizes the distance fromconnection point causing the moment to be the greatest. The following 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 second flex arm thatcan support the weight of the unit. Another option will be specially ordering alarger tube diameter that has a thicker wire resulting in greater strength. The lastoption will be to get internal stiffeners that can be added by Moffatt Products.12
Page 11: e connected to the microprocessor r
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
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Figure 2.2.2.10.2: Labview-base Bla
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Figure 2.2.2.11.2: ABS Weld-On glue
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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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