IMPLANTABLE ACTUATOR OF A HEARING AID

摘要

The invention relates to a implantable actuator of an at least partially implantable hearing instrument, comprising a housing (62), a mobile assembly (66) and a driver assembly (64), wherein the mobile assembly comprises a first portion (80) made of a first metallic material and coupled to the driver assembly in a mariner so as to be driven by the driver assembly and a second portion (84) adjacent to the first portion and made of a second metallic material different from the first material, wherein the second portion is for being coupled to a middle ear (22) or inner ear component of a patient's hearing for vibrating that hearing component in order to stimulate the patient's hearing, wherein the driver assembly and the second portion of the mobile assembly are located within the housing, and wherein the mobile assembly is made of a single piece by bi-material sintering or explosion bonding of the first and second material.