Development and Application of a Versatile FES System

Shih Ching Chen, Jer Junn Luh, Yu Luen Chen, Cheng Liang Liu, Chung Huang Yu, Han Chang Wu, Chun Hao Chen, Yasunobu Handa, Shuenn Tsong Young, Te Son Kuo, Jin Shin Lai

研究成果: 雜誌貢獻文章同行評審

2 引文 斯高帕斯(Scopus)

摘要

The purpose of this study was to develop a versatile Functional Electrical Stimulation (FES) system and to perform clinical applications to restore the functions of decentralized and paralyzed limbs. The development of the electrical stimulator, core of the FES system, is based on the element-envelope method. A direct-synthesized arbitrary waveform is generated by a digital signal processor, and bi-phasic, voltage-controlled, constant current stimuli are provided by an analog output circuit. The pattern generators receive the commands, coming from a patient-driven input device or a closed-loop feedback sensing device, to synthesize the required waveforms and elicit the required functions. In clinical application, a pedal cycling FES system, a patient-driven hand grasping FES system with a closed-loop feedback controller and an ankle motion FES system with a neural network and fuzzy controller were tested. The results showed that the proposed stimulator could be considered as a full-featured electrical stimulator for various FES applications with its flexibility in pattern generation and feedback processing capabilities. All of the clinical applications showed satisfactory results in the restoration and control of some specific functions.

原文英語
頁(從 - 到)37-43
頁數7
期刊Journal of Medical and Biological Engineering
24
發行號1
出版狀態已發佈 - 三月 2004

ASJC Scopus subject areas

  • Biophysics

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