Myoelectric Robotic Orthosis

Fahad AldakheelMelanie FergusonChad KnutsenHamid TavazoieEvan Topinka

Introduction• How we met our goals

• Recap of Device

Mission Statement• Make A Difference.• The main goal is to help stroke patients recover faster and better

than they are using current technology.• Range of Motion• Strength

PDS Summary• Met all deadlines and goals• Electrical, Programming, Mechanical• Prototype by Friday

• Goal date for prototype is March 16• Ahead of Schedule

External Search• Competitor Devices• Myomo (mPower1000)

• Arm Brace• Limited to One motion and one part of body• Device moves• Comfort issues• Sensory issues

External Search• Patent Search• We Have a Patent• Talked with multiple patent lawyers about the process

• Make a sellable product• We want to learn the business aspect of things so we can

incorporate that into how we design

External Search• “Judge a Book by it’s Cover”• Make it look good• This is one of the biggest challenges• Feedback is important

• Questionaire for each Customer• Functionality and looks• The more of these we get answered, the easier it will be to create a

valuable product. • Patient/Victim• Therapist• Doctor

External Search• FDA• Class II Device• Needs documentation and testing before it can reach the market

Internal Search - Brainstorming

• Arm Brace

• Exercise machine• Table mount, wall mount, stand

alone• Pulleys, robotic moving bar, etc.

Concept Evaluation and Decision

• Number of exercises- versatility• Degrees of Freedom exercised

• Complexity• Weight and volume• Usability

DETAILED DESIGN

Electrical System

Electrodes

EMG Amplifier

Microcontroller

Power Supply

H-Bridge

DC Motor

Power Supply

Processing

Electrical System Components• Motor specification• H-Bridge• Electrodes• 2 separate power supplies• Microcontroller

Mechanical System• Use old pulley exercise equipment• 3D printing a pulley/spool• Mechanical stop• User Interface• Monitor on device• Ipad/Android

Prototyping and Testing• Electrical components here by Friday• Still looking for old exercise equipment• Established place to work• At the end, perform Functional and Safety testing