Functional electrical stimulation (FES) systems for restoration of motor function of paralyzed muscles--versatile systems and a portable system.

Y. Handa, T. Handa, Masayoshi Ichie, H. Murakami, N. Hoshimiya, S. Ishikawa, K. Ohkubo

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Multichannel functional electrical stimulation (FES) systems were developed to restore the motor functions of the paralyzed muscles, i.e. two kinds of versatile systems for laboratory use and a practical portable system were developed. The first microcomputer-based FES system was composed of an 8 bit microcomputer (PC-8801mkII) with a voice recognition board and 30 stimulation outputs, in which the voice commands were used for selecting a motion pattern, and for executing (start), (hold), (restart) and (stop) commands. In combination with the voice commands, a proportional control command detected from a head angle sensor was used for volitional control of motion. The second microcomputer-based FES system was composed of a 16 bit microcomputer (PC-9801 UV or compatible) with flexible control capabilities (e.g. respiratory sensors) for volitional control and with 64 stimulation outputs. An originally designed practical portable FES system was 89 x 145 x 31 mm in dimension and 380 g in weight. This paper describes the system configurations, the control methods of these FES systems and three examples of the clinical applications of the FES systems.

Original languageEnglish
Pages (from-to)241-255
Number of pages15
JournalFrontiers of medical and biological engineering : the international journal of the Japan Society of Medical Electronics and Biological Engineering
Volume4
Issue number4
Publication statusPublished - 1992 Jan 1

ASJC Scopus subject areas

  • Biophysics

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