Measurements of Generated Potentials by the Electrodes of a Cochlear Implant

In this paper it is described the design and development of an experimental setup to measure in-vitro electric potential distribution delivered by a multichannel cochlear implant varying conditions and parameter of usage. In particular, it was studied the spatial distribution of the electric potential released by this implant. To accomplish this task, an automated process of measurement was built to measure the electric potential inside a tank that resembled the typical environment in which the implant is used in real conditions. This study enables a better comprehension of relationship between parameters of stimulations and the electric potential delivered by the cochlear implant, this is fundamental to develop a more efficient and spatially localized stimulation of the nervous tissues.