Bipolar electrosurgical knife

Details Bipolar electrosurgical knife Bipolar electrosurgical knife

1978-04-04

1980-10-21

Cohen, Lee S.

Surgery

Truss

Pad

12830317, A61B 1739

Patent

active

042288002

ABSTRACT:
An electrosurgical instrument comprising a handle which holds a blade assembly comprising a plurality of electrodes and insulation members positioned between the electrodes.
The blade assembly comprises a center electrode of specified thickness, insulation members secured to the center electrode and a plurality of side electrodes secured to the insulation members. The center electrode and insulation members are cut to form a cutting edge having a composite angle of less than 120.degree. thus allowing easier electrosurgical performance.
The electrodes are connected inside the nonconductive handle to a circuit whose output consists of a high frequency electrical current which forms a circuit through tissue intervening between and in contact with the electrodes when the instrument is used.

REFERENCES:
patent: 1735271 (1929-11-01), Groff
patent: 2012316 (1935-08-01), Miles
patent: 2126070 (1938-08-01), Wappler
patent: 3234356 (1966-02-01), Babb
patent: 3532095 (1970-10-01), Miller
patent: 3699967 (1972-10-01), Anderson
patent: 3768482 (1973-10-01), Shaw
patent: 3901242 (1975-08-01), Storz
patent: 3987795 (1976-10-01), Morrison
patent: 4161950 (1979-07-01), Doss et al.

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