Patent ID: 8216123

Claim:
A middle ear implantable hearing device comprising: a microphone detecting sound from outside; a signal processing unit amplifying the sound received from the microphone; a hollow tubular member with a first portion thereof coupled to the signal processing unit and a second portion thereof adapted to be inserted into an opening of a round window in an inner ear of a human body; a vibrating unit disposed inside the tubular member so as to generate mechanical vibration signals or sound signals in response to electric signals from the signal processing unit; and, a signal cord disposed inside the tubular member, wherein the signal cord is connected at a first end portion thereof to the signal processing unit and at a second end portion thereof to the vibrating unit, on as to transmit the electric signals from the signal processing unit to the vibrating unit, wherein the tubular member comprises: a cord-storing part, housing the signal cord therein; a vibrator-storing part integrally extending from the cord-storing part; and, a vibration-transmitting part integrally extending from the vibrator-storing part, wherein the vibration-transmitting part has a close flared distal end, which is configured to allow air or liquid to enter, wherein the vibration-transmitting part has a tapered cross-sectional shape that narrows to the distal end, wherein the close flared distal end of the vibration-transmitting part forms a membrane surface that contacts a round window membrane.