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Proceedings Paper

A magnetorheological fluid-based controllable active knee brace
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Paper Abstract

High customization costs and reduction of natural mobility put current rehabilitative knee braces at a disadvantage. A resolution to this problem is to integrate a Magnetorheological (MR) fluid-based joint into the system. A MR joint will allow patients to apply and control a resistive torque to knee flexion and extension. The resistance torque can also be continuously adjusted as a function of extension angle and patient strength (or as a function of time), which is currently impossible with state of the art rehabilitative knee braces. A novel MR fluid-based controllable knee brace is designed and prototyped in this research. The device exhibits large resistive torque in the on-state and low resistance in the offstate. The controllable variable stiffness, compactness, and portability of the system make it a proper alternative to current rehabilitative knee braces.

Paper Details

Date Published: 11 April 2007
PDF: 10 pages
Proc. SPIE 6527, Industrial and Commercial Applications of Smart Structures Technologies 2007, 65270O (11 April 2007); doi: 10.1117/12.715902
Show Author Affiliations
Farzad Ahmadkhanlou, The Ohio State Univ. (United States)
Jamaal L. Zite, The Ohio State Univ. (United States)
Gregory N. Washington, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 6527:
Industrial and Commercial Applications of Smart Structures Technologies 2007
L. Porter Davis; B. K. Henderson; M. Brett McMickell, Editor(s)

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