It is, instead, a medical device which actually bypasses damaged hair cells in the inner ear and electronically stimulates the auditory nerve. Once the nerve fibers are stimulated, the signal will travel directly to the brain. There are many styles of cochlear implant systems. Both provide a direct connection between the signal processor and electrodes. The cochlear implant is designed only for individuals who receive little benefit from hearing aids.
Candidates are usually two years of age or older.
Before deciding to become a cochlear implant patient, it is important to clearly understand the time commitment. Therapy involves extensive evaluations, including otologic, audiologic, radiographic and psychological tests, surgery and rehabilitation. The majority of totally deaf patients who receive a cochlear implant are able to detect medium to loud sounds, including speech at comfortable listening levels. They can also learn to recognize some familiar sounds. For many individuals, cochlear implants aid in communication by improving speechreading ability.