1. 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
November, 2005
University of Portland School of Engineering

2. Overview Introduction Accomplishments Unfinished Business Plans
Issues/Concerns
Conclusions
November, 2005
University of Portland School of Engineering

3. 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
November, 2005
University of Portland School of Engineering

4. Accomplishments Completed EE FS and Plan documents
Completed ME written project update
Modeling/analysis of the knee and foot design
November, 2005
University of Portland School of Engineering

5. Unfinished Business Motion Capture Lab Build test mockup of leg
Possible field trip to Seattle Systems in Poulsbo, WA (Seattle Power Knee)
November, 2005
University of Portland School of Engineering

6. Plans Work over break Complete Test Device 1
Complete ME Modeling/Analysis
Complete EE Schematics and AC/DC Analysis
November, 2005
University of Portland School of Engineering

7. Milestones November, 2005 University of Portland School of Engineering
Number
Description
Original
10/30/05
Previous
11/20/05
Present
11/28/05 1
Product Approval
10/04/03 2
Plan Approval
11/18/05
11/21/05 3
Mock-Up 1 Built
11/25/05
12/02/05 4
Parts Chosen 5
Design Release
12/09/05 6
Mock-Up 2 Built
01/25/05 7
TOP’s Approval
02/10/06 8
Knee, Leg and Foot Manufactured
02/15/06 9
Parts Integrated & Functional
03/15/06 10
Founder’s Day
04/07/05 11
Final Report
04/25/05
November, 2005
University of Portland School of Engineering

8. Concerns/Issues Preparing for design release New semester ahead
Get it working on paper
New semester ahead
New scheduling
How much wood would a woodchuck chuck…?
Work enough over Xmas break
November, 2005
University of Portland School of Engineering

9. Conclusions Intelligent leg prosthesis Documents done! On to design
One week behind milestone schedule
Design release imminent
November, 2005
University of Portland School of Engineering

10. Questions?
November, 2005
University of Portland School of Engineering