1. CS-EE 481 Spring 2006 1February, 2006 University of Portland School of Engineering Project Lost Intelligent Leg Prosthesis Team Eric Iversen Kathryn Lowe Eric Paugh Advisor Dr. Lillevik (EE) Dr. Chamberlain (ME) Industry Representative Jonathan Fant Future Robotics Company

2. CS-EE 481 Spring 2006 2February, 2006 University of Portland School of Engineering Overview Introduction Accomplishments Schematic Unfinished Business Plans Issues/Concerns Conclusions

3. CS-EE 481 Spring 2006 3February, 2006 University of Portland School of Engineering Introduction 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 481 Spring 2006 4February, 2006 University of Portland School of Engineering Accomplishments EE Design Review: Approved! ME Oral Proposal EE TOPs 0.9 So many glorious parts!

5. CS-EE 481 Spring 2006 5February, 2006 University of Portland School of Engineering Schematic

6. CS-EE 481 Spring 2006 6February, 2006 University of Portland School of Engineering Unfinished Business Test with mock-up 1 Complete algorithms Ordering pneumatic, bearings

7. CS-EE 481 Spring 2006 7February, 2006 University of Portland School of Engineering Plans Manufacturing –Knee, brackets, foot Assembly Calibration, testing, and re-testing

8. CS-EE 481 Spring 2006 8February, 2006 University of Portland School of Engineering Milestones NumberDescriptionOriginal 10/30/05 Previous 11/28/05 Present 01/30/06 1Product Approval10/04/05 2Plan Approval11/18/0511/21/05 3Mock-Up 1 Built11/25/0502/02/06 4Parts Chosen11/25/0502/02/06 5Design Review12/09/0502/08/06 6Mock-Up 2 Built01/25/06 02/28/06 7TOP’s Approval02/24/06 03/10/06 8Knee, Leg and Foot Manufactured02/15/0603/05/0603/13/06 9 Parts Integrated & Functional (Prototype Release) 03/15/0603/25/06 10Founder’s Day04/11/06 11Final Report04/28/06

9. CS-EE 481 Spring 2006 9February, 2006 University of Portland School of Engineering Concerns/Issues Finding small enough bearings for the right price Foot covering Appropriate pneumatic Behind schedule

10. CS-EE 481 Spring 2006 10February, 2006 University of Portland School of Engineering Conclusions Intelligent leg prosthesis Parts!!! TOPs 0.9 Behind schedule Time to build and test

11. CS-EE 481 Spring 2006 11February, 2006 University of Portland School of Engineering Questions?