Slide 1OverviewIntroduction and BackgroundSlide 4Problem StatementDesign SpecificationsCurrent DevicesSlide 8Slide 9Design Alternatives – Linear PunchDesign Alternatives – Rolling PunchDesign Alternatives – Concealed BladeDesign MatrixFuture WorkQuestions?ReferencesSlide 17Slide 18Slide 19Slide 20Device to Assist in Removal of PillsTeam Leader – Benjamin EngelCommunicator – Ryan CarrollBWIG – Eric PrintzBSAC – Justin SchmidtClient – Dr. Molly Carnes, MD, MS, ProfessorDepartments of Medicine and Industrial & Systems Engineering Advisor – Dr. Brenda Ogle, Ph.DDepartment of Biomedical EngineeringOverview•Hand strength and aging •Problem statement•Design specifications•Current devices•Design alternatives•Design matrix•Future workIntroduction and Background•Elderly exhibit decreased hand strength and dexterity•Leads to difficulty in everyday tasksIntroduction and Background•Blister Packaging•Common over-the-counter•Elderly describe difficult to openProblem Statement•Design a device to aid in the removal of pills from blister packaging for elderly/disabled patients with decreased hand strength.Design Specifications •Require minimal grip/hand strength•Patient safety•Applicable to a variety of pill packaging•Pill must remain unharmed in removal process•Allotted budget: $1000Current Devices•Pliers style device•Disadvantages•Requires hand strength and dexterity•Only applicable to “punch out” packaging(United States Patent 5,722,563)Current Devices•Motorized Blade System•Disadvantages•Opens all pills at once•Dangerous for elderly patients(United States Patent 4,909,414)Current Devices•Portable cylinder punch•Disadvantages•Difficult to load•Applies to small number of packages(United States Patent 5,405,011)Design Alternatives – Linear Punch•Utilizes motorized linear actuator•Controlled electronically•Different size/shape inserts•Hollowed out baseDesign Alternatives – Rolling Punch •Similar to linear punch design•Actuator drives thin curved metal piece•Metal roller attached to hinge•Roller applies pressure across pill packageDesign Alternatives – Concealed Blade •Thin blade slices away pill packaging•Low friction track controls blade movement•Adjustable blade height•Hinged cover holds packaging in placeDesign MatrixWeight Linear Punch Rolling Punch Concealed BladeUser Safety .25 3 2 2Effectiveness .2 1 2 3Pill Safety .2 1 1 3Ease of Use .2 2 2 2Package Variety .15 1 2 3Total 1.00 1.70 1.80 2.55Future Work•Purchase parts•Prototype fabrication•Initial testing with various packaging•Field testing and get patient feedback•Further modify the deviceQuestions?© 2007 All Rights Reserved This presentation template is academic property of Benjamin EngelReferences Beckman, Anna, Bernsten, Cecilia, Parker, Marti G., Thorslund, Mats, & Fastbom, Johan (2005). The difficulty of opening medicine containers in old age: A population-based study. Pharmacy World & Science. 27, 393-398Haber, T.M., Smedley, W.H., Foster, C.B. 1995. Blister pack pill dispenser. US Patent, 5,405,011.Heath, C. 1989. Device to remove objects from blister packs. US Patent, 4,909,414.Hunts, L.D. 1997. Tool for removing pills and the like from blister packages. US Patent5,722,563.Lawrence C. Rubin (2004) Merchandising Madness: Pills, Promises, and Better Living Through Chemistry. The Journal of Popular Culture 38 (2), 369–383Ranganathan, Vinoth K., Siemionow, Vlodek, Sahgal, Vinod, & Yue, Guan H. (2001). Effects of aging on hand function. JAGS, 49, 1478-1484.Richards L, Palmiter-Thomas P: Grip strength measurement: A critical review of tools, methods, and clinical utility. CritRev Phys Rehabil Med 1996;8:87–109Shechtman, Orit, Mann, William C., Justiss, Michael D., & Tomita, Machiko (2004). Grip strength in the frail elderly. Am. J. Phys. Med Rehabil, 83, 819-26.Design Alternatives – Linear PunchAdvantages•High level of user safety•Minimal hand strength required for push button operationDisadvantages•High likelihood of pill damage•Limited package variety (cant open “peel away” packaging)•May not open package completely•High cost of productionDesign Alternatives – Rolling Punch Advantages•High level of user safety•More effective pill removal method•Minimal hand strength required for push button operationDisadvantages•High likelihood of pill damage•Limited package variety (cant open “peel away” packaging)•May not open package completely•High cost of productionDesign Alternatives – Concealed Blade Advantages•High level of user safety•Accommodates wide variety of packaging•Low cost of production•Less likely to damage pillDisadvantages•Requires some hand
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