Electrode for use in implanting in a living body

Details Electrode for use in implanting in a living body Electrode for use in implanting in a living body

1988-06-06

1990-10-23

Cohen, Lee S.

Surgery

Truss

Pad

128642, A61N 105

Patent

active

049644149

ABSTRACT:
The present invention relates to an electrode which is implanted in a living body, and which is used as an electrical stimulation system for the functional training or restoration of paralyzed muscles, and for the measurement of electrical signals of the living body, and the like.
The electrode comprises: a core comprising a plurality of infinitesimal stainless steel wires of over 180 kg/mm.sup.2 in tensile strength and under 25 microns in diameter; and a resin coat provided on the surface of the core, made of a resin compatible with the living body. According to one aspect of the invention, the diameter of the electrode is under 0.3 mm; the electrode is provided with a spirally coiled part along its longitudinal direction; the core is stranded in one direction; and the above mentioned coiled part is coiled in the direction opposite to the stranding direction of the core.

REFERENCES:
patent: 3333045 (1967-07-01), Fisher et al.
patent: 3854002 (1974-12-01), Glander et al.
patent: 4640983 (1987-02-01), Comte
A Percutaneous Wire Electrode for Chronic Research Use, C. W. Caldwell et al., IEEE Transactions on Bio. Med. Eng., vol. 22, No. 5, pp. 429-432, (1975).

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