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THE NTNU REVOLUTE WRIST DEVICE (NRWD): A KINEMATICALLY OPITMIZED EXTERNALLY POWERED WRIST PROSTHESIS

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Date
2005
Authors
Stavdahl, Oyvind
Skjelten, Haakon
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Abstract
Transradial amputation implies the loss of the wrist. It therefore also implies the loss of the ability to do flexion/extension and radioulnar deviation as well as the forearm’s ability to rotate the wrist (prosupination). Prosupination is offered by some prostheses, but many users choose not to use a powered wrist because the benefits are literally outweighed by its weight, poor cosmesis and the complexity of controlling multiple degrees of freedom. This is also why a wrist with more than one motorized function is considered by many not to be a viable concept. This paper reports a study that aims at producing a lightweight, single-degree-of-freedom, externally powered wrist whose kinematic properties are optimized to match the movements of a healthy wrist in conjunction with certain Activities of Daily Living (ADL). The rationale for this is the assumption that reducing the need for compensatory movements whilst keeping the weight and control complexity unchanged will improve user acceptance and utilization of the device. The prosthesis provides for digital communication and coordinated motion.
Type
Other article
Subject
Wrist Prosthesis
Kinematics
Permalink
https://hdl.handle.net/10161/2746
Citation
Proceedings of the MEC’05 conference, UNB; 2005.
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  • MEC Symposium Conference Proceedings
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Copyright 2002, 2005 and 2008, The University of New Brunswick.

This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License. Creative Commons License

Rights for Collection: MEC Symposium Conference Proceedings


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