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VESTIBULAR IMPLANT

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Q. WHAT IS VESTIBULAR IMPLANT? WHERE IS IT KEPT AND HOW DOES IT WORK?

  • Vestibular implant is a new electronic implant designed to artificially restore the vestibular function in patients with bilateral vestibular loss by providing the CNS with motion information using electrical stimulation of the vestibular nerve.
  • It measures the head movement and stimulate the vestibular nerve in the inner ear.
  • Vestibular implant is inserted under the skin behind the ear and into the inner ear via surgery similar in cochlear implantation. During the first 4 months of the surgery the device will be activated and then deactivated.
  • The Vestibular implant has 4 components:
  1. Electrical stimulator
  2. Three extra-cochlear electrodes that are placed in the ampulae of each SCC and
  3. Intra-cochlear array

When it is turned on, trains of electrical stimulation in the form of charge balance biphasic pulse are delivered down each extra-cochlear electrode toward the respective vestibular nerve . Ultimately the electrical stimulation  would restore balance by stabilizing the gaze via VOR.

 

 

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