Multi-element flat electrode especially useful for HF-surgery

Details Multi-element flat electrode especially useful for HF-surgery Multi-element flat electrode especially useful for HF-surgery

1987-09-15

1989-02-28

Cohen, Lee S.

Surgery

Truss

Pad

128798, A61B 1739

Patent

active

048076210

ABSTRACT:
An electrode, in a first embodiment, comprises three sub-electrodes which are of essentially triangular shape and form a rectangular contact surface. Preferably, two right-angular sub-electrodes and an acute isosceles sub-electrode lying in-between these are employed. In a second embodiment the electrode comprises three sub-electrodes of essentially rectangular shape. One sub-electrode is preferably formed in a T-shape, and the foot of the T lies between two other rectangular sub-electrodes.
The electrode is preferably used as a neutral electrode in a HF-surgical apparatus. An associated monitoring circuit allows a rapid determination of whether the entire electrode or only a sub-electrode is in good electrical contact with the skin surface of a patient to which the surgical apparatus is being applied.

REFERENCES:
patent: 3683923 (1972-08-01), Anderson
patent: 3720209 (1973-03-01), Bolduc
patent: 4082087 (1987-04-01), Howson
patent: 4381789 (1983-05-01), Naser et al.

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