The cochlear implant or bionic ear with the function of the damaged inner ear is an electronic medical device used by those who experience severe hearing loss. There is a difference between cochlear implant and other hearing aids in terms of their functions as it plays the role of damaged parts of the inner ear. However, the hearing aids make the sound hear louder. The cochlear implant is very effective for the patients who experience a severe hearing problem, especially if it has been occurred recently and annoyed by buzz noise. It consists of two external and the internal components. The external piece is put back of the ear and the internal one implanted in the ear and skin surface through the surgery.
As it was mentioned above, the cochlear implant includes some implanted parts as well as the outer parts. The components work as followings:
- The antenna receives the signals from the sound processor that is put behind the ear;
- The receiver-stimulator manages the electrical signals into the ear;
- The magnet holds the speech processor;
- The wire with some electrodes is inserted into the cochlea.
- Microphone gets the environmental sounds;
- Sound processor that is put behind the ear processes the sounds;
- The receiver-stimulator receives the sound signals and turns them into the electrical signals to the ear;
- Electrodes are responsible for sending electrical pulses to the different auditory nerves.
All parts must be placed in the right situation in order to work together, receive the sound, convey it to the auditory nerve, and then transmit it to the brain and finally provide hearing.