Final Project Review P09006 – Upper Extremity Exerciser From Left to Right: Jamie Rothfuss (ISE), Omar Ghani (ME), Matt Oelkers (ME), Andrew Krivonak(ME), Wesley Adam (ISE), Dwight Cooke (ME)

Project Review Agenda General Project Information – Wes Project Background – Wes High Level Customer Needs – Wes Selected Concept – Dwight Evolved Design - Andrew Device Production – Dwight, Omar, Andrew Assembled Device – Matt Results & Conclusions – Omar Suggested Device Improvements – Wes Device Demonstration – Jamie

General Project Information Project Family: Assistive Devices Track: Assistive Devices and Bioengineering Faculty Guide(s): Dr. Matthew Marshall (ISE) Dr. Elizabeth DeBartolo (ME) Primary Customer: J.J. Mowder-Tinney Director of Clinical Education Nazareth College Department of Physical Therapy Budget: $1,500 - $2,000 Primary Market Opportunities: Secondary Market Opportunities: Stroke Victims Other Physical Therapy Providers

Project Background Mission Statement: “The purpose of this project is to redesign or create a new upper extremity exerciser, to be used in the rehabilitation of stroke victims, who have lost basic mobile function in their upper body.” Extended View Flexed View Extended View Flexed View Device Prototype Generation One Device

Customer Needs Primary Customer Needs: Durability Safety Adjustability Light Weight Able to be Cleaned & Sterilized Portable Inexpensive Assistive Resistive Able to be used on both sides of the body Maintains a pre-determined range of motion Completely attach to the patient’s body Secondary Customer Needs: Able to be used while sitting or standing Able to be reproduced Able to be used without assistance Constrains shrug Changeable resistance/assistance

Selected Concept Side View Front View

Evolved Design Side View Front View

Device Production – Spring Subsystem Torsion Spring Removable End Cap Spring Arm Bases Upper Arm Shaft Lockout Pin Lower Arm Shaft

Device Production – Belt Subsystem Reinforced Stitching Horizontal Adjustment Tube Horizontal Stabilization Rod Vertical Adjustment Tube Custom Foam Belts Horizontal Adjustment Pin

Device Production – Arm Subsystem Memory Foam Pads Adjustable Straps Extension Spring Linear Ball Bearing Lockout Pin Adjustable Arms Molded Arm Cuff

Assembled Device Flexed View Extended View

Results/Conclusions Achieves desired range of motion 5° to 120° Applies required assistive and resistive forces Variable up to 9.5 lbs Light weight, portable, and compact 5 lbs 24” x 10.5” x 6” Produced under allotted budget 40% of total budget used Device produced at approximately 20% Adjustable for a population range of 95th percentile male to 5th percentile female

Results/Conclusions

Recommendations Attaching the device to a rigid structure instead of the patients’ body Design a shoulder harness to fully limit a patients’ ability to shrug Design a left arm system Work closely with a spring manufacturer to help fabricate a custom spring with a unique force output profile

Device Demo Come on out Dwight … Device Demo

Questions / Comments