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Modeling of the Organ of Corti Stimulated by Cochlear Implant Electrodes

Authors:
Umberto Cerasani
William Tatinian

Keywords: cochlear implant, electrical analog, transient simulations

Abstract:
Cochlear implants are used by deaf people to recover partial hearing. The electrode array inserted inside the cochlea is an extensive area of research. The aim of the electrodes array is to directly stimulate the nerve fibers inside the Organ of Corti. The electrical model of the physical system consisting of Organ of Corti and the electrodes is presented in this paper. This model allowed to run Spice simulations in order to theoretically detect the minimal voltage sufficient for nerve fiber stimulation as well as the impact of the electrode voltage on the duration of nerve fibers stimulation. Besides, the perturbations introduced by one electrode on the neighboring electrodes were theoretically studied. Finally, the study of power consumption was performed, which is of great importance in such embedded system.

Pages: 80 to 85

Copyright: Copyright (c) IARIA, 2013

Publication date: October 27, 2013

Published in: conference

ISSN: 2308-3492

ISBN: 978-1-61208-306-3

Location: Venice, Italy

Dates: from October 27, 2013 to October 31, 2013