What are Cochlear Implants?

Cochlear implants are electronic medical devices that aims to replace the damaged inner ear. More specifically, they function as a simpler cochlea that processes sounds and turns them into electronic signals, which can then be sent to the brain as perceptions of sound.

The cochlear implant consists of:

  • A sound processor
    • Worn behind the ear or on the body
    • Captures sound through a microphone and turns it into digital code
    • Sends the digital code to the implanted receiver through the transmitter system
  • An implant
    • Converts the digital code into electrical impulses
    • Sends the electrical impulses to the implanted electrode in the cochlea
    • Stimulates the auditory nerve, which interprets the electrical impulses as sounds