A titanium anchoring device for anchoring at least one electrode in or adjacent to a human cochlea so that the electrode can afford electrical stimulation of nerve fibers to produce the sensation of sound includes a titanium shaft disposed in an aperture in the lateral wall of the inner ear. At least...http://www.google.com/patents/US4892108?utm_source=gb-gplus-sharePatent US4892108 - Multi-channel extracochlear implant
