Journal of Rehabilitation Research & Development (JRRD)

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Volume 48 Number 6, 2011
   Pages 609 — 618

Abstract —  Two-degree-of-freedom powered prosthetic wrist

Peter J. Kyberd, PhD;1* Edward D. Lemaire, PhD;2 Erik Scheme, MSc;1 Catherine MacPhail, BSc;1 Louis Goudreau, BASc, PEng;2 Greg Bush, BA, CP(c);1 Marcus Brookshaw, BSc1

1Institute of Biomedical Engineering, University of New Brunswick, Fredericton, Canada; 2The Ottawa Hospital Rehabilitation Centre, Ottawa, Canada

Abstract — Prosthetic wrists need to be compact. By minimizing space requirements, a wrist unit can be made for people with long residual limbs. This prosthetic wrist uses two motors arranged across the arm within the envelope of the hand. The drive is transmitted by a differential so that it produces wrist flexion and extension, pronation and supination, or a combination of both. As a case study, it was controlled by a single-prosthesis user with pattern recognition of the myoelectric signals from the forearm. The result is a compact, two-degree-of-freedom prosthetic wrist that has the potential to improve the functionality of any prosthetic hand by creating a hand orientation that more closely matches grasp requirements.

Key words: control, Controller-Area Network bus, distributed control, electromyographic control, electromyography, graphical user interface, microprocessor control, myoelectric control, pattern recognition, powered wrist, prosthetic wrist, two-function wrist, upper-limb loss, upper-limb prosthetics.

View HTML  ¦  View PDF  ¦  Contents Vol. 48, No. 6
This article and any supplementary material should be cited as follows:
Kyberd PJ, Lemaire ED, Scheme E, MacPhail C, Goudreau L, Bush G , Brookeshaw M. Two-degree-of-freedom powered prosthetic wrist. J Rehabil Res Dev. 2011;48(6): 609-18.

Last Reviewed or Updated  Monday, July 11, 2011 9:13 AM

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