Method of positioning an implantable cochlear electrode array wi

Details Method of positioning an implantable cochlear electrode array wi Method of positioning an implantable cochlear electrode array wi

1999-10-29

2000-12-19

Evanisko, George R.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

A61N 105

Patent

active

061637297

ABSTRACT:
A method of positioning an electrode array within a human cochlea includes making a flexible positioner as a curved or hooked shape from a silicone polymer. The positioner is adapted to be inserted into the scala tympani duct of a human cochlea. The positioner may be inserted into the scala tympani duct before, concurrent with, or after, insertion of the electrode array. The flexible positioner fills space within the scala tympani duct so as to force the electrode array, also inserted into the scala tympani duct, against the modiolar wall of the cochlea, where the electrode contacts of the electrode array may be more effective. In one embodiment, a channeling groove is formed along one side of the positioner for receiving the electrode array. Also, in one embodiment, a silastic tube forms a molded-in tube within the molded positioner, and provides a lumen, sealed or closed at its distal end, into which a stylet wire may be inserted during the insertion process.

REFERENCES:
patent: 6038484 (2000-03-01), Kuzma

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