1. CS-EE 480 Fall 2005 1October, 2005 University of Portland School of Engineering Project Lost Intelligent Leg Prosthesis Team Eric Iversen Kathryn Lowe Eric Paugh (Lead Egr.) Advisor Dr. Lillevik (EE) Dr. Chamberlain (ME) Industry Representative Jonathan Fant Future Robotics Company

2. CS-EE 480 Fall 2005 2October, 2005 University of Portland School of Engineering Overview Background Accomplishments Plans Issues/Concerns Conclusions

3. CS-EE 480 Fall 2005 3October, 2005 University of Portland School of Engineering Background Transfemoral (Above-Knee/AK) prosthesis solutions: –Single axis/polycentric –Friction lock –Hydraulic/pneumatic –Computerized The pneumatic control valve only adjusts when the user’s pace changes Project goal: To reduce fatigue by simulating a normal gait Final product functions as replacement knee, lower leg, and foot

4. CS-EE 480 Fall 2005 4October, 2005 University of Portland School of Engineering Accomplishments EE FS 1.0 approval meeting User interface logic designed Pneumatic knee control evaluated Mechanical designs selected

5. CS-EE 480 Fall 2005 5October, 2005 University of Portland School of Engineering Plans Complete EE FS and Plan documents Complete ME written project update Modeling/analysis of the knee and foot design Motion Capture Lab Build test mockup of leg Possible field trip to Seattle Systems in Poulsbo, WA (Seattle Power Knee)

6. CS-EE 480 Fall 2005 6October, 2005 University of Portland School of Engineering Concerns/Issues Hurricane Wilma –Writing our own program Double Documentation –Reuse documentation Realistic preliminary testing –Test mock up Part availability –Talk with faculty and IR

7. CS-EE 480 Fall 2005 7October, 2005 University of Portland School of Engineering Conclusions Intelligent leg prosthesis Design selection completed Moving on to the design modeling and testing phase Testing concerns

8. CS-EE 480 Fall 2005 8October, 2005 University of Portland School of Engineering Questions?