Title :
Finite element analysis of electrical nerve stimulation
Author :
Cavanaugh, James K. ; Lin, Jim-Cheng ; Durand, Dominique M.
Author_Institution :
Appl. Neural Control Lab., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
31 Oct-3 Nov 1996
Abstract :
A nerve stimulation model and tool have been developed to analyze and optimize the design of nerve cuff electrodes. A finite element method was used to determine the electric potentials in the volume conductor. Nerve fiber excitation was determined using the net driving function algorithm. Extraneural and interfascicular cuff electrode configurations were modeled. Selectivity indexes were calculated on various cuff configurations to analyze the effectiveness of selectively activating a given fascicle. The authors´ results show that interfascicular cuffs have higher selectivity than extraneural cuffs due to isolation created by the cuff itself
Keywords :
bioelectric phenomena; electrodes; finite element analysis; neurophysiology; physiological models; prosthetics; extraneural electrode configurations; functional neuromuscular stimulation; interfascicular cuff electrode configurations; muscle recruitment improvement; nerve cuff electrodes design optimization; nerve fiber excitation; nerve stimulation model; selectivity indexes; Electrical stimulation; Electrodes; Extracellular; Finite element methods; Mathematical model; Mesh generation; Nerve fibers; Packaging; Recruitment; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.656990
