cochlear implant

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cochlear implant

 
a device consisting of a microphone, signal processor, external transmitter, and implanted receiver; the receiver is surgically implanted under the skin near the mastoid process above and behind the ear. It is an alternative to total deafness, although it does not actually restore hearing. Deaf persons using the implant do not hear sounds in the same way hearing persons do, but they can be taught to interpret sounds transmitted by the device.

co·chle·ar im·plant

an electronic device consisting of a microphone, speech processor, and electrodes that are implanted in the inner ear to stimulate the remaining nerve fibers of the auditory division of the eighth cranial nerve in adults and children with profound hearing impairment or deafness. Many recipients of cochlear implants achieve high, open-set word recognition and can understand speech even over the telephone.
See also: auditory prosthesis.
Synonym(s): cochlear prosthesis

cochlear implant

n.
An electronic apparatus that allows people with severe hearing loss to recognize some sounds, especially speech sounds, and that consists chiefly of a microphone and receiver, a processor that converts speech into electronic signals, and an array of electrodes that transmit the signals to the cochlear nerve in the inner ear.

cochlear implant

an electronic device that is surgically implanted into the cochlea of a deaf individual. A transmitter placed outside the scalp sends signals to a receiver under the scalp, which in turn transmits an electrical code to the auditory nerve. A microphone is located behind the ear to collect the sound waves that are transmitted through a microprocessor. The microprocessor analyzes the sound waves and relays data back to electrodes in the implanted device. The patient receives electrical pulses that are translated into sound vibrations that can be distinguished as neural sensations. Although the implant does not transmit speech in the same manner as it would be perceived by a person with normal hearing, it allows the individual to perceive and distinguish sounds that would not otherwise be audible to him or her and to use those sounds along with other environmental cues to improve communication. Also called cochlear prosthesis.
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Cochlear implant

cochlear implant

Audiology A multicomponent electronic prosthetic device for those with severe hearing loss, whose sensory neurons have been damaged, but not completely destroyed, and for whom conventional hearing aids are inadequate; CIs bypass damaged structures in the inner ear and directly stimulate the auditory nerve. See Cochlea, Hearing aid.

coch·le·ar im·plant

(kok'lē-ăr im'plant)
Amplification device surgically implanted with its stimulating electrodes inserted directly into the nonfunctioning cochlea.
See: hearing aid
See also: amplification

cochlear implant

A device designed to stimulate the acoustic nerve so as to produce some form of hearing in people wholly deaf from inner ear disease. Although there have been great advances in multichannel implants, the results still cannot be said to compare with natural hearing. But cochlear implants can make a substantial difference to children born deaf or becoming totally deaf before 3 years of age, so long as the implant is inserted before the age of five. Most of the children who receive such implants are able to develop intelligible speech.
References in periodicals archive ?
Cochlea implants are generally implanted into just one of the child's ears but a decision was made by consultants at the Freeman to implant both Ivy's ears with the device.
Her fundraising comes after pupil Daisy Hancox, six, underwent a cochlea implant when she was just a toddler.
Louise, Garry and the rest of the family are now hopeful the cochlea implant will prove to be a success, even if it only works in the right ear.
Last month, Kieran underwent three hours of surgery to have a cochlea implant at Newcastle's Freeman Hospital.
But now, thanks to a cochlea implant - which was switched on for the first time last Monday - cheeky Skye heard Santa's sleigh bells for the first time.
In a four-year-old I can understand 90% of what is said two years after he had the cochlea implant.
We played Anything is Possible and we talked about my cochlea implant and he was really interested.
Thomas, 11, has been profoundly deaf since birth Though a cochlea implant has helped him acquire the rudiments of speech, he could not talk at all when he first went to Knotty Ash primary school at the age of four.
Delighted Tracey, 12, is now singing along to her favourite Boyzone hits, thanks to the device known as the cochlea implant.
Companies then made a donation for each one collected, resulting in a pounds 15,000 cash boost for the cochlea implant parent's support group, the child deaf youth project and the hearing impaired service.
Over 38 children across Ireland have benefited from the cochlea implant.
Subsequent chapters cover reconstructive plastic facial surgery; nasal surgery; paranasal sinuses; epipharynx; oral cavity and oropharynx; larynx, hypopharynx, and trachea; neck; esophagus and mediastinum; salivary glands; and modern developments in ear surgery, transplants and implants, cochlea implants, bone-anchored prothesis, and laser procedures.