Cochlea implant

Details Cochlea implant Cochlea implant

1985-11-15

1988-08-09

Cohen, Lee S.

Surgery

Truss

Pad

A61N 105

Patent

active

047621354

ABSTRACT:
A small diameter rolled up electrode array for implantation in the cochlea is provided herein. The array includes a flexible, biologically-inert planar support member which has been rolled up to a cylindrical shape to have a proximal end and a distal end. A plurality of electrodes is located at predetermined, spaced distances along a portion of the length of the rolled up, cylindrically-shaped support member starting at the proximal end, each of the electrodes comprising an open ended ring almost encircling the support member and a conducting feedline monolithically associated with each electrode, such feedline lying on the outer surface of the rolled up curved outer surface of the rolled up cylindrical support member, and extending from each associated electrode to the distal end thereof. The support member is thus being rolled up into a cylindrical shape to facilitate insertion of the electrode array into the cochlea while minimizing trauma during the insertion procedure.

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Pochay et al, "A Multichannel Depth Probe . . . " IEEE Trans on Biomedical Eng., vol. BME-26, No. 4, Apr. 1979, pp. 199-206.
May et al, "A Tantalum-on-Sapphire . . . Array"; IEEE Trans on Electron Devices, vol. ED-26, No. 12, Dec. 1979, pp. 1932-1939.
Sonn et al, "A Prototype Flexible Microelectrode . . . ", MED & Biol. Eng., pp. 778-790, Nov. 1974.

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