Simulation of multipolar fiber selective neural stimulation using intrafascicular electrodes

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Meier, Jan H. and Rutten, Wim L.C. and Zoutman, Arne E. and Boom, Herman B.K. and Bergveld, Piet (1992) Simulation of multipolar fiber selective neural stimulation using intrafascicular electrodes. IEEE Transactions on Biomedical Engineering, 39 (2). pp. 122-134. ISSN 0018-9294

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Abstract:A realistic, quantitative model for the excitation of myelinated nerve fibers by intrafascicular electrodes is presented. It predicts the stimulatory regions of any configuration of any number of electrodes, positioned anywhere inside the fascicle. The model has two parts. First, the nerve fiber is represented by a lumped electrical network and its response to an arbitrary extracellular potential field, is calculated. Second, assuming a cylindrical geometry of the nerve bundle and its surroundings, an analytical expression for this field is derived. With realistic parameters, the model is applied to two cases: monopolar stimulation by a single cathode and stimulation by a specific tripolar configuration. It is shown that tripolar stimulation has the better spatial conductivity of the medium surrounding the nerve and yields a more natural recruitment order
Item Type:Article
Copyright:© 1992 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/15332
Official URL:http://dx.doi.org/10.1109/10.121643
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