Electrode with movable insertion stopper

摘要

A cochlear implant electrode comprising: an electrode carrier having an electrode lead at its distal end and an electrode array with stimulating electrodes distributed along the electrode array at its proximal end, the electrode carrier including notches disposed in a longitudinal direction along the electrode carrier; and a stopper fixed to the electrode carrier at its distal end, the stopper having a locking pin on an inner surface of the stopper configured to be positioned within the notches and having a region that is configured to extend or contract so that the stopper expands or contracts in length in relation to the electrode carrier depending on a position of the locking pin in one of the notches and so that a proximal end of the stopper is movable with respect to the electrode carrier. 7994419 1 (GHMatters) P98573.AU.1