1. PSU / Keen Mobility Expandable Wheelchair Final Report Sponsor: Industry Advisor: Facility Advisor: Team: Keen Mobility Rick Klein Faryar Etesami Meagan Pischel Robb Sparks Joshua Hatch Aleksey Synkov Spring, 2005

2. PSU / Keen Mobility Mission Statement Develop a low-cost manual wheelchair with adjustable width and depth for skilled care facilities.

3. PSU / Keen Mobility Need for Expandable Wheelchair Reduce size of chair fleet in nursing homes Reduce size of chair fleet in nursing homes Reduce wide (20”) chair rentals Reduce wide (20”) chair rentals Free up Medicare money for other patient needs Free up Medicare money for other patient needs Provide a better fitting chair to patients Provide a better fitting chair to patients

4. PSU / Keen Mobility Main Design Objectives Adjust width 16” to 20” Adjust depth 16” to 18” Increase chair capacity to 300 lbs Allow quick, tool free adjustment

5. PSU / Keen Mobility Additional Requirements Allow use of normal doorways Allow use of normal doorways Ability to fold instantly Ability to fold instantly Standard service life Standard service life Easy maintenance Easy maintenance Manageable chair weight Manageable chair weight Safety Safety Reliability Reliability

6. PSU / Keen Mobility Final Design Crossbar design allows wheelchair to fold Standard Adult WheelchairFolded pinned attached

7. PSU / Keen Mobility Final Design Double Crossbar for added weight capacity Width Adjust

8. PSU / Keen Mobility Final Design Handle Re-designed for Depth Adjustment Original DesignRe-design Fixed Sliding

9. PSU / Keen Mobility Analysis Finite Element Analysis (FEA) for Handle F

10. PSU / Keen Mobility Analysis Yield Strength = 57 kpsi max. stress = 30 kpsi FOS = 1.9 Safe for designed load FEA Result max

11. PSU / Keen Mobility Testing Broken into quantitative and qualitative characteristics Broken into quantitative and qualitative characteristics Width and depth adjustability meet project requirements Width and depth adjustability meet project requirements Width adjusts in less than 3 minutes, depth in less than 1 minute Width adjusts in less than 3 minutes, depth in less than 1 minute Chair still folds easily Chair still folds easily

12. PSU / Keen Mobility Patenting Grant funds available for patenting Grant funds available for patenting Draft patent application sent to lawyer Draft patent application sent to lawyer

13. PSU / Keen Mobility Conclusions and Recommendations The wheelchair meets all main design objectives and the majority of other PDS requirements The wheelchair meets all main design objectives and the majority of other PDS requirements Only aesthetics need serious help Only aesthetics need serious help Some areas for refinement were identified Some areas for refinement were identified

14. PSU / Keen Mobility Special Thanks Rick, Jerry, Brandon and entire Keen Mobility Team Rick, Jerry, Brandon and entire Keen Mobility Team Professor Etesami Professor Etesami Vancouver Skilled Care Facility nurses and staff Vancouver Skilled Care Facility nurses and staff