BAHA

A Bone Anchored Hearing Aid (BAHA) is a new type of hearing aid that enters it's sound output into the cochlea by vibrating the mastoid bone (the large bony mass just behind the ear) instead of by directing amplified sound at the ear drum.

A BAHA aid has a titanium anchor that is implanted in the bony area behind your ear. That anchor is the transducer which the aid uses to vibrate the mastoid bone with a signal that represents the sound as amplified by the hearing aid. The vibrations of the mastoid bone cause the cochlea to vibrate, so it can "hear" the sound.

People with a conductive hearing loss may find a BAHA an effective way to hear, since it bypasses their middle ear, where the conductive problem exists.

Although a BAHA might be best for people with a conductive loss, using bone conduction as an input is not usually as good as using a properly operating ear drum and middle ear, so most people with the more common sensorineural hearing loss normally would not find the BAHA as good a solution as a normal hearing aid.

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