How does a cochlear implant work?


A cochlear implant bypasses damaged parts of the inner ear and directly stimulates the hearing nerve. It has two main parts:


✅ External part (worn outside the ear)

• A microphone picks up sounds from around you.

• A speech processor converts those sounds into a digital signal.

• This signal is sent through a transmitter coil on the outside of your head to the implant inside.


✅ Internal part (implanted under the skin)

• The implant receives the signal from the outside part.

• It sends the signal through an electrode placed inside the cochlea (your hearing organ).

• The electrode directly stimulates the auditory nerve.

• The auditory nerve then sends the sound information to your brain.


Your brain learns to understand these signals as speech and other sounds. With practice and listening therapy, you can gradually make sense of them and improve your hearing.


In short:

👉 The external device captures and codes the sound.

👉 The internal device delivers it straight to the hearing nerve.

👉 The brain does the rest of the work to help you hear.

Location: Hyderabad, Telangana, India

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