Active Stroke Rehabilitation

Fahad AldakheelMelanie Ferguson

Chad Knutsen Bijan Tavazoie Evan Topinka

BackgroundStroke affects one side of the body The main goal is to help stroke patients recover faster and better

than current rehabilitation methods. Range of Motion (ROM) Strength

Active therapy is used to facilitate patient induced motion of affected limbs

Design Requirements Summary

PDS compiled from patient and medical professional interviews

Exercise more than one jointVisually unobtrusive (to patient)Small footprintEase of use / Intuitive interfaceSafety

External SearchCompetitor Device

Myomo (mPower1000) Device proves concept Limited to one motion and one part of body Comfort issues

Patent Protected!

Internal Search - BrainstormingArm BraceRobotic ArmCNC table movementAdjustable Chair/BedExercise Machine

Table mount, wall mount, free standing, mobile

Concept Selection

Concepts

General Actuation Method System Layout

Criteria for Rating

Highest Score Possible for

CriteriaAdjustable

Hospital BedCNC Table Movement

Pulley Exercise Machine

Table Mount

Wall Mount

Stationary Freestanding

Movable Freestanding

Versatility 15 10 15 15 15 15 15 15Low Weight/Volume 5 2 1 4 3 3 3 3Simplicity of Design 10 7 4 9 6 9 9 7Ease of Use 10 7 7 9 4 9 9 8Low Cost 10 6 4 7 7 7 7 7Low Visibility 5 1 3 4 3 3 3 3

Safety 15 10 10 13 10 10 10 5

TOTALS 43 44 61 48 56 56 48

Detailed Design ProgressMotor Drive Circuit SpecificationProgramFeedback Sensing DecisionMotor SpecificationSystem Testing

Next StepsIntegrate components into electronics

packageROM and voltage calibration sequence

in programGraphic interface integrationTube and slide mechanism refinementPhysical refinement: hiding the ugly Investigate wireless communication

between sensors and controllerRefine sensor attachment and placementDetailed CAD model by March 21st