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cochlear implant
cochlear implantn. 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 (ˈkɒklɪə) n (Medicine) a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear diseasecoch′lear im′plant
n. a surgically implanted hearing aid that converts sound reaching the cochlea into electrical impulses that are transmitted by wire to the auditory nerve. cochlear implant
cochlear implant[¦kō·klē·ər ′im‚plant] (neuroscience) A sensory prosthesis that restores some hearing to deaf people by electrically stimulating the auditory nerve. cochlear implant
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 process" >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·plantan 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 prosthesiscochlear implantn. 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 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: amplificationcochlear 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.AcronymsSeeCIThesaurusSeeimplant |