Non-occludable transducer for in-the-ear applications

Details Non-occludable transducer for in-the-ear applications Non-occludable transducer for in-the-ear applications

H - Electricity

04

R

H04R 25/00 (2006.01) H04R 25/02 (2006.01)

Patent

CA 2084005

An in-the-ear electroacoustic transducer is constructed to limit the effect of accretion of cerumen on acoustically active surfaces: to prevent cerumen from plugging passages for acoustical energy to the tympanic membrane and to facilitate the removal of cerumen from the transducer by the user. A casing has a hollow tubular wall, and diaphragm means is mounted to the casing near one end thereof, the casing being shaped for insertion in the ear to define a space generally bounded by the ear canal, the tympanic membrane and the diaphragm means. The diaphragm means has a flexible film surround, and stop means are provided to limit its movement inwardly of the casing. The transducer can be incorporated in or utilized as various hearing aids respectively adapted for different depths of insertion within the ear canal.

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