Implantable hearing aid and method of improving hearing
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United States of America Patent
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-
Mar 8, 1988
Issued Date -
N/A
app pub date -
Aug 11, 1986
filing date -
Dec 4, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus are disclosed for improving the hearing of a hearing-impaired subject who, if anatomically normal, possesses a tympanic membrane intended for generating mechanical tympanic vibration in response to sound waves impinging thereon, an inner ear responsive to mechanical vibrations, and an ossicular chain intended to communicate mechanical vibrations from the tympanic membrane to the inner ear; wherein the ossicular chain is interrupted to preclude transmission of mechanical vibrations between the tympanic membrane and the inner ear of the subject and an implant is surgically interposed to bridge the interruption in the ossicular chain to form an independent link between the tympanic membrane and the ear, which implant is comprised of input and output transducers for mediating mechanical/electrical signals to constitute that independent link.
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