Neutral electrode for a high-frequency surgical instrument

Details Neutral electrode for a high-frequency surgical instrument Neutral electrode for a high-frequency surgical instrument

1988-04-21

1989-10-17

Cohen, Lee S.

Surgery

Truss

Pad

A61B 1739

Patent

active

048739740

ABSTRACT:
A neutral electrode for a high-frequency electrosurgical instrument comprises three partial electrodes arranged in a predetermined direction on an insulated carrier. The carrier has on one side which is parallel to the predetermined direction, an electrical line terminal. The terminal contains electrical lines leading to the partial electrodes. In accordance with the invention, the surface area of the partial electrodes decreases in the predetermined direction. The electrode is applied on the patient so that the predetermined direction points toward the site of the surgical procedure. In this way, the partial electrodes are essentially acted upon by identical fractions of high-frequency energy, so that reliable monitoring of the contact between the partial electrodes and the patient is possible.

REFERENCES:
patent: 3534727 (1970-10-01), Roman
patent: 4082087 (1978-04-01), Howson

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