Saturday, April 16, 2011

How Does a Cochlear Implant work?


Like hearing aids cochlear implant alone is not a total solution, the child will understand the meaning of sounds only with special training. Speech and language therapy from a trained therapist is very important. If the child is benefiting from hearing aids, then he may not be a candidate for a cochlear implant.

Cochlear Implants send electric signals directly to the inner ear and auditory nerve bypassing the outer and middle ear. Implant has two part (1) external part, which are worn outside of the body, and (2) internal parts, which are surgically implanted. The external parts consist of a microphone to pick up sounds, a speech processor who converts sounds into coded signals and sends them to the external transmitter. Which sends the signals to an internal receiver through the skin, internal receiver code these signals into electrical energy and sends them to an electrode array to stimulate the auditory nerve fibers in the cochlea and the sound is transmitted to the brain.

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