NDLI: Addition of an intrafascicular electrode at the site of application of a multipolar nerve cuff enhances the opportunity for selective fascicular activation

Content Provider	IEEE Xplore Digital Library
Author	Riso, R. Dalmose, A. Stefania, D. Schuttler, M.
Copyright Year	2001
Description	Author affiliation: Inst. for Exp. Clinical Res., Arhus Univ., Denmark (Riso, R.; Dalmose, A.; Stefania, D.)
Abstract	Multipolar nerve cuffs are being developed to apply to peripheral trunk nerves in an effort to limit the number of implanted components of an FES system, while at the same time allowing specific fascicles within the cuffed nerve to be independently activated. Because the electrode contact sites of a multipolar circumferential fitted cuff are positioned only at the surface of the cuffed nerve, it is difficult to activate fascicules that are located deep within the nerve. This situation might be improved if one or more additional electrode contacts were provided within the core of the nerve. An obvious choice for such a contact is to use an intrafascicular electrode (IFE) such as. those described by Horch and his colleagues. In our present study we inserted a single IFE into a trunk nerve that subserves the forelimb muscles in an adult anesthetized pig. An 18 pole multichannel nerve cuff was then applied to the nerve at the same site. We stimulated different combinations of the cuff contact sites with and without the IFE while monitoring the evoked EMGs from an array of innervated forearm and shoulder muscles to assess the ability to activate different fascicles independently. The results have shown that the use of the IFE in combination with the normal cuff contacts can afford modest improvements in the degree of selective muscle activation that is possible.
Starting Page	711
Ending Page	714
File Size	370945
Page Count	4
File Format	PDF
ISBN	0780372115
ISSN	1094687X
DOI	10.1109/IEMBS.2001.1019039
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-10-25
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Muscles Monitoring Animals Fingers Cats Optical devices Optical sensors Electromyography Iron
Content Type	Text
Resource Type	Article

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