CONTRIBUTION TO A MODEL OF ELECTRICALLY STIMULATED INNER EAR

Marek Polák - Marcel Mičan - Pavel Gonda

   The clinical implantation of electrode field into the inner ear requires a better understanding of the electrical nerve stimulation, which allows the simulation of the behaviour of auditory nerve fibres. Our model was chosen as a spiral-shape duct with circular cross-section and a set of electrodes inside the conducting media with a bipolar current source. The mapping of the electric field has been performed by the Finite Element Method. The results of this mapping allow predicting some possible dimensions and positions of cylindrical and hemispherical excitation electrodes.

Keywords: electrical stimulation, computational modelling, inner ear, cochlea

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