SUBCUTANEOUS PIEZOELECTRIC BONE CONDUCTION HEARING AID ACTUATOR AND SYSTEM

摘要

An implantable bone-conduction hearing actuator based on a piezoelectric element, such as a unimorph or bimorph cantilever bender, is described Unlike other implantable bone conduction hearing actuators, the de? ice is subcutaneous and once implanted is entirely invisible The de? ice excites bending in bone through a local bending moment rather than the application of a point force as with conventional bone-anchored hearing aids.