In-the-ear-canal hearing aid

Details In-the-ear-canal hearing aid In-the-ear-canal hearing aid

1986-10-20

1987-11-17

Fuller, Benjamin R.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

381 686, A61B 702

Patent

active

047067780

ABSTRACT:
The invention relates to an in-the-ear hearing aid for people with impaired or defective hearing, with an ear-piece containing a microphone, amplifier, telephone, battery compartment with battery, on/off switch and volume control and closed by a cover plate; a hollow space (6) to the auricular canal is provided for at the inner end of the ear-piece (1) between the sound outlet connector (4) of the telephone (3) and the sound outlet (5) of the hearing air, this hollow space forming a resonator in conjunction with the sound outlet.

REFERENCES:
patent: 4010820 (1977-03-01), Johnson
patent: 4311206 (1982-01-01), Johnson

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