Roller electrodes for electrocautery probes for use with a resec

Details Roller electrodes for electrocautery probes for use with a resec Roller electrodes for electrocautery probes for use with a resec

1995-04-20

1996-08-27

Sykes, Angela D.

Surgery

Instruments

Electrical application

606 47, 606 48, 606 49, A61B 1732, A46B 1739

Patent

active

055496059

ABSTRACT:
An electrocautery probe includes a pair of arms between which a roller electrode is mounted. The arms are joined at their proximal ends to an electrode lead and a mounting sleeve is provided intermediate of the arms and the lead for slideably coupling the probe to a resectoscope. According to the invention, the roller electrode is provided with a plurality of longitudinal surface grooves which increase surface area of the electrode and also enhance traction of the electrode. Other embodiments of the invention have eccentric convex or concave surfaces to further increase the surface area of the electrode. The electrodes according to the invention are preferably made of copper, chromium cobalt, or carbonless stainless steel. They preferably have an overall diameter of from about 0.115 to about 0.187 inches and an overall length of from about 0.110 to about 0.120 inches.

REFERENCES:
patent: 1971024 (1934-08-01), Wappler
patent: 2487502 (1949-11-01), Willinsky
patent: 2815757 (1957-12-01), Piar
patent: 3752159 (1973-08-01), Wappler
patent: 4917082 (1990-04-01), Grossi et al.
patent: 5196011 (1993-03-01), Korth et al.
patent: 5324288 (1994-06-01), Billings et al.
patent: 5354296 (1994-10-01), Turkel
patent: 5395312 (1995-03-01), Desai
patent: 5395363 (1995-03-01), Billings et al.

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