Hearing aid having gel or paste transmission means communcative with the cochlea and method of use thereof
Patent 5318502 Issued on June 7, 1994. Estimated Expiration Date: 
October 24, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 24, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesImplantable electromagnetic middle-ear bone-conduction hearing aid device Ultrasound contact medium dispenser Hearing aid having a liquid transmission means communicative with the cochlea and method of use thereof Patent #: 5176620 InventorApplicationNo. 781833 filed on 10/24/1991US Classes:600/25SURGICALLY IMPLANTED VIBRATORY HEARING AIDExaminersPrimary: Kamm, William E.Assistant: Getzow, Scott M. Attorney, Agent or FirmInternational ClassH04R 025/00AbstractA hearing aid (100) is provided for surgically implanting in the ear of a subject. A gel or paste filled tube (142) is positioned between an orifice of the cochlea and a subcutaneous amplifier (200). A microphone (122) converts sound waves outside the subject into electrical signals which are amplified by the amplifier and are converted back into amplified mechanical motion by a transducer means (124). The amplified mechanical motion is transmitted through the tube by the gel or paste to the cochlea bypassing the outer and middle ears. The gel or paste and dimensions of the tube are selected to substantially match the acoustic impedance of the cochlea at the distal end of the tube.Field of SearchSURGICALLY IMPLANTED VIBRATORY HEARING AID | |
