A versatile multichannel direct-synthesized electrical stimulator for FES applications
Resource
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Journal
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Pages
-
Date Issued
2000-05
Date
2000-05
Author(s)
Wu, Han-Chang
Young, Shuenn-Tsong
Kuo, Te-Son
DOI
N/A
Abstract
Functional electrical stimulation has been applied to restore or maintain the muscle activity of paralyzed patients who suffer spinal cord injuries and related neural impairments. A direct-synthesized arbitrary waveform stimulator for multichannel stimulation is developed in this paper. A novel "element-envelope" method is proposed and implemented by a digital signal processor to synthesize required stimulating patterns with high resolution. This method not only generates arbitrary waveforms but also reduces the memory requirements. It preserves the ability to adjust stimulation parameters dynamically. We also design an output stage that can provide bi-phasic, voltage-controlled constant-current patterns while remain high compliance and wide bandwidth. This system can be considered as a full-featured stimulator for various FES applications with its flexibility in pattern generation and feedback processing capabilities.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
00846850.pdf
Size
640.88 KB
Format
Adobe PDF
Checksum
(MD5):3ab58dda97dd2e7b860e40f2f8f01a15