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Cochlear Implant History

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A cochlear implant is an electronic medical device that does the work of the damaged parts of the cochlea, which is the inner ear, to provide sound signals to the brain. Cochlear implants were a major breakthrough in history. There was now a way for people, who have had little or no benefit from hearing aids, to receive sound. The cochlear implant, which was sometimes called a “Bionic Ear” could help some people to hear again.
In 1972 the first single channel cochlear implant was introduced. This provided many deaf people with better lip reading enhancement. In 1984, a multi-channel cochlear implant was introduced. The difference between the single channel and multi-channel implant system was that the single channel system only delivered sound …show more content…

The multi-channel implant was able to process more detailed information than the single channel implant. Earlier versions of the multi-channel implant used a headband to hold the transmitting coil close to the implanted receiver coil. Later, magnets were developed to hold the transmitting coil close to the receiver coil. The implant now mimicked the normal functions of the inner ear. Some individuals were able to understand speech without lip reading. The FDA first approved implants for individuals 18 years and older
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in 1985. Five years later, they approved it for children two years old and older and in 2000 they approved it for children as young as 12 months and older.
The cochlear implant works by a sound processor that is worn behind the ear. It first captures sound, turns that sound into a digital code, and then transmits that code by the coil on the outside of the implant. The implant then converts the digitally coded sound into electrical impulses and sends them to the electrode array in the cochlea. The electrode array stimulates the hearing nerve and sends impulses to the brain where they are translated as sounds.
Cochlear implants are made up of three external parts and two surgically implanted …show more content…

The speech processor is like a computer, it is usually with the microphone behind the ear. The speech processor analyzes the sound and sends it to the transmitter.
The transmitter is worn on the head just behind the ear, it sends coded signals to the implanted receiver just under the skin. The receiver takes the coded electrical signals from the transmitter and takes them to the electrodes which have been surgically implanted in the cochlea. These electrodes then stimulate the auditory nerve and the sensation of sound in recognized.
Cochlear implants help provide a sense of sound to an individual who is deaf or hard of hearing. They can help individuals who have hearing loss in both ears or in only one ear. The benefits from a cochlear implant vary depending on whether the individual had hearing loss before or after developing language, the individual’s age, or the motivation of the individual.
Cochlear implants do not restore normal hearing, but they can help a deaf individual to have an
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effective representation of sound and help the individual understand speech. Most of the time, individuals tend to hear better with time and practice.
Some individuals have benefitted from cochlear implants and some have not. There

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