HEARING AID SYSTEM INCLUDING IMPLANTABLE HOUSING HAVING EAR CANAL MOUNTED TRANSDUCER SPEAKER AND MICROPHONE

摘要

A hearing aid system comprised of a housing configured for subcutaneous implantation having a portion configured to extend percutaneously into, or adjacent to, a patient's ear canal. The percutaneous portion is configured to carry both a sound responsive transducer and a sound producing transducer. Electronic cancellation circuitry is used to avoid acoustic feedback.