Partially or fully implantable hearing aid

Details Partially or fully implantable hearing aid Partially or fully implantable hearing aid

1999-05-14

2000-09-26

O'Connor, Cary

Surgery

Surgically implanted vibratory hearing aid

607 57, H04R 2500

Patent

active

061236608

ABSTRACT:
The invention relates to a transducer for partially or fully implantable hearing aids for direct mechanical excitation of the middle or inner ear. The transducer is provided with a housing fixedly mounted at the implantation site and a coupling element moveable with respect to the housing for transmitting vibration to the middle ear ossicle or directly to the inner ear. The housing accommodates a piezoelectric element with which the coupling element can be vibrated and an electromagnet arrangement including an electromagnetic component, such as an electromagnetic coil, fixedly mounted relative to the housing and a vibratory component, such as a permanent magnet, mechanically connected to the coupling element such that the vibration of the vibratory component is transferred to the coupling element.

REFERENCES:
patent: 3870832 (1975-03-01), Fredrickson
patent: 4628907 (1986-12-01), Epley et al.
patent: 4800884 (1989-01-01), Heide et al.
patent: 5259032 (1993-11-01), Perkins et al.
patent: 5277694 (1994-01-01), Leysieffer et al.
patent: 5360388 (1994-11-01), Spindel et al.
patent: 5411467 (1995-05-01), Hortmann et al.
patent: 5624376 (1997-04-01), Ball et al.
patent: 6005955 (1999-12-01), Kroll et al.

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