APPLICATION AND EVALUATION OF FUNCTIONAL ELECTRICAL STIMULATION TO THE PARARYZED HAND WITH MULTI-CHANNEL STIMULATOR BY MICROCOMPUTERS.

Youichi Shimada, Y. Handa, S. Komatsu, A. Naito, M. Ichie, Y. Nakatsuchi, R. Yagi, Y. Sugimoto, N. Hoshimiya, R. Futami, K. Iijima

Research output: Contribution to journalConference articlepeer-review

Abstract

A new multi-channel electric stimulator based on microcomputers was developed to restore movements of the paralyzed hand in quadriplegics by functional electrical stimulation (FES). Electrical stimulation was applied to the nerves innervating the hand muscles through percutaneously implanted electrodes. There existed non-linear relationships between stimulus amplitude and contractile force which seemed to be disadvantageous for proportional control of the hand movements by patients themselves. Involvement of the inverse function in the stimulation patterns could linearize the muscle responses. Based upon these results, the authors developed algorithms for controlling three kinds of prehension patterns, such as power grasp, key grip and grasp for holding cards in a C6 quadriplegic.

Original languageEnglish
Pages (from-to)532-533
Number of pages2
Journaljapanese journal of medical electronics and biological engineering
Volume22
Publication statusPublished - 1984 Apr

ASJC Scopus subject areas

  • Biomedical Engineering

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