Knee Brace with FeedbackKnee Brace with Feedback

Group Members: Craig Greiner, Zack Mason, Jason WoodsGroup Members: Craig Greiner, Zack Mason, Jason Woods

Mentor: Dr. George StettenMentor: Dr. George Stetten

Presented by Richard Stoner

Senior Design Update January 25th, 2005

Senior Design Update Knee Brace with Feedback

Project Description

Problem:Vague interpretation of flexion angle in knee after surgical procedure and during rehabilitation

Solution:Portable digital goniometer, integrated into a soft brace with a digital output

Senior Design Update Knee Brace with Feedback

Current Design

Senior Design Update Knee Brace with Feedback

Project Status

• Document Control is current• Initial prototype design completed• 3D model of knee acquired• Suppliers located for components• Parts have been placed on order

Senior Design Update Knee Brace with Feedback

Upcoming Problems

Potentiometer that meets the specifications of the PDS? Or other analogous measuring device, such as an optical encoder?

Battery packaging and effective life-span?

Flexibility along the non-functional axes of the machine?

Senior Design Update Knee Brace with Feedback

Personal Focus

• Initial idea and development• Solidworks modeling• Patent review• Design integration and overview

– Fit and range of motion– Electronic capability– Feedback methods

• Scheduling

Senior Design Update Knee Brace with Feedback

Personal Achievements

• Created first complete model• Located specific components

– Bearings– Batteries– PCB Fabrication

• Document Control Management

Senior Design Update Knee Brace with Feedback

Work-To-Do

• Find a supplier for ball bearings• Locate a suitable potentiometer• Investigate flexible plastics/polymers• Test and help redesign prototype

Senior Design Update Knee Brace with Feedback

Questions?