An Implantable Wireless System for Muscle Afferent Recording from the Sciatic Nerve during Functional Electrical Stimulation

Title
An Implantable Wireless System for Muscle Afferent Recording from the Sciatic Nerve during Functional Electrical Stimulation
Authors
송강일손안세추준욱최귀원황도식윤인찬
Keywords
MICS; Functional electrical stimulation; Nerve cuff electrode; Implantable Wireless System; Muscle Afferent
Issue Date
2013-07
Publisher
IEEE Engineering in Medicine and Biology Society (EMBC)
Citation
, 3610-3613
Abstract
An implantable wireless system was developed for recording muscle afferent activity and stimulating peripheral nerves with cuff electrodes. The proposed system was fabricated into the nerve cuff electrode, neural amplifier, neural stimulator, and wireless communication system with battery power. The nerve cuff electrode and neural amplifier were designed to improve the signal-to-interference ratio and signal-to-noise ratio. The wireless communication system was designed based on the medical implant communication service regulations to be suitable for implantation. The main function of this system was to extract muscle afferent activity from peripheral nerve during functional electrical stimulation. The cuff electrodes were chronically implanted on the sciatic nerve for recording and on the tibial and peroneal nerves for stimulation. When the extension and flexion movements of ankle joint were elicited from alternative electrical stimuli, the corresponding neural signals and ankle angles were recorded simultaneously. The muscle afferent activity was then extracted from the recorded neural signal through a simple blanking process. The experimental results showed that the ankle movements could be detected from the extracted muscle afferent activity.
URI
http://pubs.kist.re.kr/handle/201004/45279
Appears in Collections:
KIST Publication > Conference Paper
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