Cochlear implant electrode array

摘要

An electrode array ( 30 ) which is able to be inserted to a desired depth within the cochlea to provide useful percepts for the recipient which will also preferably not cause damage to the sensitive structures of the cochlea. The electrode array ( 30 ) is insertable through an opening in the cochlea and into at least the basal region of the cochlea and comprises an elongate carrier ( 31 ) having a proximal end, a distal end, and a plurality of electrodes ( 32 ) supported by the carrier at respective spaced locations thereon in a region between the proximal end and the distal end. A stabilising collar ( 35 ) extends outwardly from the elongate carrier ( 31 ) at or adjacent a proximal end thereof and has an abutment surface adapted to abut a portion of the cochlea surface around the cochleostomy and at least substantially prevent movement of the carrier ( 31 ) following completion of insertion of the array ( 30 ) into the cochlea.