Active Ankle/Foot OrthoticPresentation OutlineProblem StatementBackgroundSlide 5Summary of PDSCurrent OrthoticsSpring DesignJoint DesignMaterial DesignDesign MatrixFuture WorkReferencesSpring Design (Pros and Cons)Joint Design (Pros and Cons)Material Design (Pros and Cons)Active Ankle/Foot OrthoticClient: Dr. Robert PryzbelskiAdvisor: Professor Brenda OgleTeam Members: Jessica Hause - Co-leaderErin Main - Co-leaderJoshua White - CommunicatorAnthony Schuler - BWIGEmily Andrews - BSACPresentation OutlineProblem StatementBackgroundSummary of PDSCurrent OrthoticsDesign AlternativesSpringJointMaterialDesign MatrixFuture WorkReferencesProblem StatementOrthotic for patients with neuropathies affecting gaitActively enhances forefoot propulsionIncreases proprioception and balanceSupports ankle weaknessBackgroundNeuropathyStrokeCharcot-Marie ToothMultiple SclerosisPlantar & DorsiflexionFoot DropNormal GaitSummary of PDSStability and supportAids propulsionWeight-bearingUnder $300Universal vs. custom-fitLight, strong and durableThermoplastics, biopolymers, nano-fibers, neopreneCurrent OrthoticsSpring Design Thermoplastic90° angleLeaf spring in sole aids propulsionJoint DesignThermoplasticTwo pieces connected by jointTamarack joint assists plantar and dorsiflexionMaterial DesignMemory materialHigh energy returnMaterial assists plantar flexion and dorsiflexionDesign Matrix Cost (0.3)Balance/Stability (0.05)Propulsion/Push-off (0.25)Material(0.25)Foot Clearance (0.15) TotalSpring$500 (0.6)Ankle Brace (0.3)Spring with rounded toe (0.75)Thermoplastic with lining (0.75)Molded at 90 degrees(0.45)2.85Joint$400 (0.9)Stirrup (0.25)3/4 cut, Tamarack joint (1.25)Thermoplastic with lining (1)Joint assists with dorsiflexion (0.75)4.15Material$700 (0.3)Stirrup(one-sided) (0.2)Energy return material (1.5)Carbon nanofiber(1.75)Memory material (0.9)4.65Future WorkContinue biomechanics researchPerform gait analysisFinalize designBuild prototypePerform prototype testingReferenceshttp://www.footankle.com/ankle-foot.htmhttp://www.firsttoserve.com/Catalog-Orthotics/Lower_Extremity/Custom_Ankle_Foot_Orthotic_AFO/http://www.dafo.com/index.cfm?pageID=2143http://leedergroup.com/http://www.beckerorthopedic.com/tamarack/t5.jpghttp://www.ottobock.com/cps/rde/xbcr/SID-3F574DD1-5FE72259/ob_com_en/Bedienungsanleitung_28U11_WalkOn.pdfhttp://www.bostonpedorthic.com/orthotics.asphttp://www.germes-online.com/direct/dbimage/50066106/Leaf_Spring.jpghttp://www.springhouston.com/http://www.doereport.com/enlargeexhibit.php?ID=842 http://www.germes-online.com/direct/dbimage/50066106/Leaf_Spring.jpg https://secure.roycemedical.com/images/products/AFOLeafSpring.jpghttp://www.mda.org/publications/fa-cmt.htmlhttp://sprojects.mmi.mcgill.ca/gait/normal/walk.gifSpring Design(Pros and Cons)Pros•Cost efficient•Ankle stability•DurableCons•Over-coverage can cause excessive heat•Poor propulsion•Bulky•Restricted range of motionJoint Design(Pros and Cons)Pros•Cost•Propulsion•Foot clearanceCons•Bulky•Poor breath ability•Inflexible soleMaterial Design(Pros and Cons)Pros•Lightweight•Flexible•Propulsion•Foot clearance•DurableCons•Poor stability and support•Cost•Availability of
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