Hearing aid having a liquid transmission means communicative with the cochlea and method of use thereof
Patent 5176620 Issued on January 5, 1993. Estimated Expiration Date: 
October 17, 2010. 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 17, 2010. 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 ReferencesSystem for enhancing auditory stimulation and the like Implantable electromagnetic middle-ear bone-conduction hearing aid device Implantable middle ear hearing aid system and acoustic coupler therefor Implantable hearing aid coupler device Patent #: 5085628 InventorApplicationNo. 599066 filed on 10/17/1990US Classes:600/25, SURGICALLY IMPLANTED VIBRATORY HEARING AID607/57By partially or wholly implanted deviceExaminersPrimary: 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 liquid 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 liquid to the cochlea bypassing the outer and middle ears. The liquid 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 | |
