Rehabilitation Engineering Group #13 Oral Presentation #3 7 February 2007 Andrew Carroll Nina Connell Kristin Duncan Jennifer Young Advisors: Mark Richter Aaron Fitzsimmons Nina: 1-3 Jen: 4-5 Andrew: 6-10 Kristin:11-13

Advisors Dr. Mark Richter Aaron Fitzsimmons, CP, OTR Mechanical Engineering MAX Mobility, Brentwood, TN Aaron  Fitzsimmons, CP, OTR Certified Prosthetist, Registered Occupational Therapist Industry expert, prosthetist at Superior Orthotics and Prosthetics in Nashville, TN Tina Fitzsimmons, OT Occupational Therapist for Metro School District, Assistive Technology Industry expert on working with special needs children

Project Background Client Details Work Completed By Others 8 year old male, only child Physical disabilities in upper extremities Client currently has a personal assistant Cannot use the restroom by himself Is able to pull down his pants Work Completed By Others ES 140 students at Vanderbilt Private assistive technology companies No one has come up with a feasible solution to the client’s personal needs.

Project Definition/Overview Goals The client and his family have expressed the need for a wiping device, which will be completed by April 2007. We plan to continue our iterative process of building prototypes and improving them based on client feedback. Desired Characteristics Easy install Sanitation Compact and portable Nina does 1 – 4 Jen

Current Status Prototype A constructed December 2006 Presented to prosthetist and advisor Visited client’s house to ascertain personal needs Prototype B tested January 2007 Hands-on testing by client Usable but still crude

Prototype A

Prototype Iteration Problems with Prototype A Mounting location Unnatural motion Potentially high device failure rate Unrealistic materials Has to be preloaded

Prototype B

Prototype B

Prototype Iteration Solution solved by Prototype B Mounted on toilet vs. wall Front to back wiping Highly stable More comfortable and realistic materials Self-loaded The client has tested Prototype B and is able to install and uninstall the device on his toilet. He is optimistic about the design and excited about the autonomy it will provide.

Current Work Prototype C Progress Client interaction Optimal position for client usage Custom molded plaster alginate for perfect fit Decision on final materials/hybrid of materials Possible hinge design Client interaction House call to make toilet mold Phone and email communication with advisor Dunc Face

Future Plans Prototype C Learn CAD Safety features Client usage Applicable on all toilets Placement of wipes (Swiffer design) Learn CAD Send to get machined ($300) Fudge

Questions?