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Proprioception Testing Device. Lee C. Groeneweg, EGR Thomas A. Farley, EGR Steve Brodnicki, SPT Ryane Eno, SPT Mike Terrell, SPT. Definition of Proprioception. Joint position sense without visual input
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Proprioception Testing Device Lee C. Groeneweg, EGR Thomas A. Farley, EGR Steve Brodnicki, SPT Ryane Eno, SPT Mike Terrell, SPT
Definition of Proprioception • Joint position sense without visual input • Measurements help inform physical therapist of patient’s ability to determine limb location in space • Also helpful in determining whether therapy interventions are necessary
Measurement of Proprioception • Blind fold individual • Place the limb into a test position • Hold in test position for a few seconds • Record angle of test position • Return to starting position • Patient places limb into the testing position • Record angle of repeated attempt
Project Overview • Device to isolate and measure internal and external rotation of shoulder joint External Shoulder Rotation Internal Shoulder Rotation
Statement of Need • Device to isolate and measure internal and external rotation of shoulder joint • Must measure degrees similar to physical therapist’s goniometer • Test position must be self restraining (Locking)
Project Specifications • Isolation and measurement of shoulder internal and external rotation • Position of body - lying down on table • No computer technology • Easily used in a clinical setting • Portable and light • Measurement in degrees • Inexpensive • Test position must be self restraining (Locking)
Design Constraints • Patient positioned lying on back • Shoulder blade must be immobilized • Upper arm positioned 90° to body • restrained • allowing longitudinal motion • in a resting position • Elbow must be positioned 90° to upper arm
Prototype Stage • Discuss ideas • 2-D CAD drawings • Foam poster board • Convey 3-D concept • Receive approval
Materials of Choice • Aluminum • Plastic • Standard Fasteners • Camera Tripod • Mini Laser Pointers • Ergonomic Knob
Manufacturing Process Plan • Plate • band saw, vertical mill, disk grinder • Risers • vertical mill, hand-tapped threads • Slider bracket • vertical mill • Plastic laser pen holders • band saw, drill press • Tripod support plate • band saw, vertical mill, hand-tapped threads
Production Stage • Approval of prototype design • Updated 2-D CAD drawings • Process plan for manufacturing • Obtain material • Manufacture parts • Assemble parts for fit • Test for proper function
Features & Benefits • Adjustable for multiple users • Lightweight materials • Fully Collapsible • Portable while assembled • Design is a baseline for future devices
Q and A Session Lee C. Groeneweg, EGR Thomas A. Farley, EGR Steve Brodnicki, SPT Ryane Eno, SPT Mike Terrell, SPT For addt’'l project info: http://www.eod.gvsu.edu/~groenelc/MnfgProcess/EGR367.html