Design of MobIle Digit Assistive System (MIDAS): A Passive Hand Extension Exoskeleton for Post Stroke Rehabilitation

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Design of Mobile Digit Assistive System (MIDAS): A Passive Hand Extension Exoskeleton for Post Stroke Rehabilitation

• Authors
• Authors and affiliations

• Titus S. Hansen
• Chris K. Bitikofer
• Bahram E. Sobbi
• Joel C. Perry

• Titus S. Hansen
  • 1
• Chris K. Bitikofer
  • 1
• Bahram E. Sobbi
  • 1
• Joel C. Perry
  • 1
  Email author

1. 1.Mechanical Engineering DepartmentUniversity of IdahoMoscowUSA

Conference paper

First Online: 14 October 2018

Part of the Biosystems & Biorobotics book series (BIOSYSROB, volume 22)

Abstract

Stroke often causes flexor hypertonia as well as weakness of finger extension. This limits functionality of the hand degrading independent ability to perform upper limb activities of daily living (ADL’s). Hand rehabilitation post stroke is vital to regaining functionality in the affected limb, leading to improved independence and quality of living. In this paper the development of DigEx and MIDAS passive arm orthoses are detailed. A quick-change cam system is implemented featuring one-handed cam swapping. This provides the ability to vary assistance levels to improve usability and independence for the user. Pulleys and bearings are added to reduce friction caused by mechanical contacts and material failure. Initial tests with the prototype are promising.

This work is supported by the University of Idaho and the Eunice Kennedy Shiver National Institute of Child Health and Human Development of the National Institutes of Health under Award Number K12HD073945. The content is solely the responsibility of the authors and does not necessarily represent the official views of the University of Idaho or the NIH.

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