sisekõrvaimplantaat

Sisekõrvaimplantaat, also known as a cochlear implant, is a surgically implanted electronic device that provides a sense of sound to individuals who have moderate to profound sensorineural hearing loss. Unlike hearing aids, which amplify sound, a cochlear implant bypasses damaged parts of the ear and directly stimulates the auditory nerve. The device consists of external components, including a microphone, a speech processor, and a transmitter, and internal components, including a receiver-stimulator and an electrode array. The microphone picks up sound, which is then processed by the speech processor. This processed signal is sent to the transmitter, which relays it across the skin to the internal receiver-stimulator. The receiver-stimulator converts the signal into electrical impulses that are then sent through the electrode array to the cochlea. These impulses are then transmitted to the brain via the auditory nerve, where they are interpreted as sound. Cochlear implants are typically recommended for individuals who do not benefit sufficiently from conventional hearing aids. The surgery involves placing the internal components beneath the skin and inserting the electrode array into the cochlea. After surgery, a period of healing is followed by the activation of the external speech processor and subsequent auditory rehabilitation. This rehabilitation process helps recipients learn to interpret the electrical signals as meaningful sound. While cochlear implants can significantly improve hearing and communication abilities, they do not restore normal hearing. The effectiveness of a cochlear implant can vary depending on factors such as the duration of deafness, the cause of hearing loss, and the individual's commitment to auditory training.