Prosthesis electrode with multi-layer membrane

Details Prosthesis electrode with multi-layer membrane Prosthesis electrode with multi-layer membrane

1980-07-09

1982-06-29

Cohen, Lee S.

Surgery

Truss

Pad

A61N 104

Patent

active

043368115

ABSTRACT:
A prosthesis electrode for electrically stimulating body tissue. The electrode has a metal tip covered by a non-metallic coating composed of a compound of the metal in the tip. Covering the non-metallic coating is an ion-conducting membrane which prevents the metal tip and the non-metallic coating from contacting the body tissue. The membrane comprises a specific ion-conducting inner membrane layer which prevents transference to the body tissue of ions in the coating which enter into undesirable reactions with the body tissue. On the outside of the inner membrane is a non-specific ion-conducting outer membrane layer which is non-toxic to body tissue and which prevents changes in salt concentration in the body tissue adjacent the electrode during a biphasic pulse of the electrode.

REFERENCES:
patent: 3572323 (1971-03-01), Yuan
patent: 3993048 (1976-11-01), Francis
patent: 3994302 (1976-11-01), Brennen
patent: 4011861 (1977-03-01), Enger

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