1. Device for Acute Rehabilitation of the paretic hand after stroke
Team: Carly Brown, Sasha Cai Lesher-Perez, Nathan Kleinhans, Lee Linstroth

2. Client: Dr. Michelle Johnson
Medical College of Wisconsin - Milwaukee
Advisor: Prof. Mitch Tyler
University of Wisconsin Madison

3. Background: Stroke Affects 700 000 each year
Occurs mostly in people over the age of 65
Results in
Hemiplegia
Loss of memory
Loss of verbal skills
Death

4. Background: Rehabilitation
Robot – aided therapy
Supination / pronation of the wrist
Flexion / extension of hand
Mechanical system
Visual cues
MIT-Manus robot – aided therapy device

5. Problem Statement
Design a portable rehabilitation device, which is automated, universal, comfortable and will assist rehabilitation of supination / pronation of the wrist as well as finger flexion / extension during the acute phase post-stroke.

6. Our system: Components
Limit Switches
Hand Grasper
Wrist Rotator
Casing

7. Our system: Safety Switch will be depressed by peg on wrist rotator
Degree adjustable depending on abilities of patient in both supination and pronation directions

8. Our system: New look
Sketches by Martin Gutierrez

9. Our system: Program What level is the patient at? O Low O Medium
O High
Which hand will be used?
O Right
O Left
What are the setting of the limit switches?
Pronation Supination
O 40 O 40
O 50 O 50
O 60 O 60
O 70 O 70
O 80 O 80
O 90 O 90

10. Testing: Clinicians n = 5 Prototype demonstration Time trials
Evaluated with paired t-test
Heuristics evaluation
Evaluated with Mann-Whitney test

11. Testing: Patients n = 5 Use device over 10 sessions
Evaluate at 1st, 5th and 10th sessions
Grip strength
Active wrist range of motion
Subjective evaluation

12. Questions