cochlear implant

(redirected from Cochlear implantation)
Also found in: Dictionary, Encyclopedia.

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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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
Farlex Partner Medical Dictionary © Farlex 2012

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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Supplementing the 1200 images within the book are 15 outstanding videos available on Thieme's MediaCenter demonstrating the implantation of the different cochlear implantation devices that are currently available and the application of brainstem implants in these situations: tumor removal, malformation (missing auditory nerve in children), and cochlear ossification.
Exploration of the cognitive and behavioural consequences of paediatric cochlear implantation. Cochlear Implants International, 7, 61-76.
Clinical Implications: Implantation prior to the age of 18 months may increase the effectiveness of cochlear implantation in terms of immediate outcomes such as communication skills (as Ali and O'Connell, 2007 and Ouellet and Cohen, 1999) and it should be one of the considerations when weighing up the harms and benefits associated with cochlear implantation in this age group.
Ashcroft, "Direct measurement of cerebrospinal fluid pressure through the cochlea in a congenitally deaf child with mondini dysplasia undergoing cochlear implantation," The American Journal of Otology, vol.
Implications for cochlear implantation. Acta Otolaryngol 1985; 99: 14-20.
Cochlear Implantation Centre will be the first facility in Public sector and would entertain children and adults who are deaf and the person having problem in hearing loss or using hearing aid.
These patients often become good candidates for cochlear implantation. The present paper describes a case of cochlear implantation after a bilateral temporal bone fracture causing bilateral profound hearing loss and ossification of one cochlea.
More than 300 cards have been sold during Christmas, which helped raise BD100 for the Bahraini Deaf Society and the Bahraini Society for Cochlear Implantation and Hearing Impairment.
When she was 1 year 6 months of age Akiko underwent cochlear implantation. The cochlear implant device was activated when Akiko was 1 year 7 months of age.
These results were similar to other data indicating that children with implants and other disabilities have lower achievement levels, but "most do reach some degree of social and communicative autonomy, an improvement that demonstrates the benefit of cochlear implantation in this population," they said.
Cochlear implantation is the standard treatment for children and adults affected by severe and severe-to-profound sensorineural hearing loss.
The two hearing aids, which were purchased at a cost of BD22,000, were presented by the Shamil Bank deputy chief executive, Ahmed Abdul Rahim, to the Bahraini Society for Cochlear Implantation and Hearing Impairment president Dr Ahmed Jamal.