Trouble hearing? Jane Kukula and Paula Webster guide you in finding solutions to your hearing challenges so you can Enjoy Every Moment!
Thursday, February 21, 2013
Hearing Loss and Cochlear Implants
A cochlear implant is a
surgically implanted device. Those with severe to profound hearing loss
who do not do well with hearing aids may be a candidate. Since it is a
surgical procedure, one must also be a good candidate for surgery.
A cochlear implant consists of
three parts; an electrode array, magnets and a sound processor. The electrode array is a thin wire with
electrodes on it. The array is inserted
into the spiral portion of the inner ear called the cochlea. The electrode array stimulates the hearing
nerves. The other end of the array is attached to a magnet that is placed under
the skin on the side/back of the head. The sound processor looks similar
to a hearing aid. It is placed over the
ear and has a magnet connected by a wire that connects to magnet under the
scalp. Typically one ear is implanted.
Sound is picked up by a
microphone in the sound processor. It is sent to the external magnet
where it is transferred to the magnet under the skin. The signal is travels
to the electrode array, electrically stimulating the hearing nerves in the
inner ear. The ear perceives this electrical stimulation as sound and
sends the information along the auditory nerve up to the brain.
If you think you are a candidate for a cochlear implant, have a