Bipolar electrosurgical instrument

Details Bipolar electrosurgical instrument Bipolar electrosurgical instrument

1989-08-17

1991-04-23

Cohen, Lee S.

Surgery

Instruments

Electrical application

606 50, A61B 1739

Patent

active

050096567

ABSTRACT:
A surgical instrument of the kind which is adapted to operate using bipolar energizing potential comprises a pair of adjacently disposed, elongated electrodes that receive the bipolar potential, and an electrical insulator disposed between the electrodes. The insulator terminates proximally of distal ends of the electrodes to provide a cavity across which sparking between the electrodes occurs. Thus, the instrument is useful in, e.g., arthroscopic surgery on the knee, to perform several types of procedures (such as cutting, smoothing of cartilage, and coagulation) even in the presence of an electrically conductive irrigating solution (such as saline).

REFERENCES:
patent: 1814791 (1931-07-01), Ende
patent: 3858586 (1975-01-01), Lessen
patent: 4043342 (1977-08-01), Morrison, Jr.
patent: 4476862 (1984-10-01), Pao
patent: 4483338 (1984-11-01), Bloom et al.
patent: 4548207 (1985-10-01), Reimels
patent: 4593691 (1986-06-01), Lindstrom et al.
patent: 4706667 (1987-11-01), Roos

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