31mm-12 Pairs of Electrodes ranging from low frequencies located at the top (apex) of the cochlea to the mid frequencies and down to the high frequencies at the base of the cochlea.
These electrodes electrically stimulate
auditory nerve endings to create sound sensations.
What are the biocompatible materials that can be used?
Biocompatible materials that can be used are Silicon, Ceramics, Titanium and Platinum.
Platinum is used as the electrode contact. For the Teflon-coated wires between the receiver/stimulator and the electrode contacts, platinum/iridium 90/10 is used.
Most critical part of the surgery.
Getting the electrode into a 5mm round window.
Tip of the electrode has a risk of being damaged.