Surgery – Surgically implanted vibratory hearing aid
Patent
1991-12-23
1994-08-16
Cohen, Lee S.
Surgery
Surgically implanted vibratory hearing aid
381 683, H04R 2500
Patent
active
053382870
ABSTRACT:
An electromagnetic induction type hearing aid which comprises (1) an electromagnetic transmitter having an input for receiving a radiated acoustical signal and an output for radiating an alternating electromagnetic signal whose frequency components are determined by the input signal and (2) a wireless magnetostrictive vibrator of bimorph design and of biocompatible material and which is adapted to be surgically implanted on one of the bones of the ossicular chain in a spatial operative relationship to the transmitter output without the need for mechanical anchoring and without any components passing through the boundary of the middle ear of the user. The vibrator is further responsive to the electromagnetic signal radiated from the transmitter and vibrates the ossicular chain in response to such radiated electromagnetic signal to stimulate the inner ear to create the perception of sound to the user.
REFERENCES:
patent: 4729366 (1988-03-01), Schaefer
patent: 4957478 (1990-09-01), Maniglia
patent: 4999609 (1991-03-01), Crossfield
patent: 5015225 (1991-05-01), Hough et al.
Janning John L.
Janning, Jr. Eugene A.
Miller Gale W.
Cohen Lee S.
Lacyk John P.
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