Title :
Stimulator for real time control of paralyzed muscles during functional electrical stimulation
Author :
Dou, Huifmg ; Asres, Ainishet ; Zhou, Zhaoying ; Zhu, Sencun
Author_Institution :
Dept. of Precision Instrum. & Mech., Tsinghua Univ., Beijing, China
Abstract :
A multichannel, flexible, versatile electrical stimulator is important in Functional Electrical Stimulation (FES) systems. The stimulator introduced in this paper is designed and used in our laboratory-based functional neuromuscular stimulation system for the restoration of the upper or lower extremity movement of paralyzed patients. It can generate 16 independent channel complex, yet useful current pulse profiles. It is routinely used to produce rectangular, bi-phasic pulse shapes having pulsewidths in the range of 5 μs to 1000 μs with a resolution of 1 μs. The pulse amplitudes can be modulated from -100 to +100 mA with a maximum resolution of 0.4 mA. The experimental applications prove that the stimulator has very good performance and is very easy to use
Keywords :
biocontrol; biomedical electronics; computerised control; handicapped aids; muscle; neurophysiology; orthotics; pulse amplitude modulation; pulse generators; pulse shaping circuits; real-time systems; waveform generators; 5 to 100 mus; current pulse profiles; functional electrical stimulation; laboratory-based functional neuromuscular stimulation system; lower extremity movement restoration; multichannel flexible versatile electrical stimulator; paralyzed muscles; paralyzed patients; pulse amplitude modulation; real time control; rectangular bi-phasic pulse shape production; upper extremity movement restoration; waveform generation; Clocks; Counting circuits; Force measurement; Instruments; Muscles; Neuromuscular stimulation; Pulse amplifiers; Pulse generation; Pulse modulation; Pulse shaping methods;
Conference_Titel :
Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on
Conference_Location :
Rodos
Print_ISBN :
0-7803-3650-X
DOI :
10.1109/ICECS.1996.584612
