Surgical retractors

Details Surgical retractors Surgical retractors

1986-07-17

1988-04-19

Grieb, William H.

Surgery

Truss

Perineal

A61B 1702

Patent

active

047382481

ABSTRACT:
A surgical retractor can be used in conjunction with an electro-surgical instrument without ensuring against the two coming too close together or touching when the surface of the tip of the retractor is electrically and thermally nonconductive and has a Rockwell C hardness of at least 55. The tip of the retractor may have a metal core which is provided with a hard, electrically insulating surface by sintering a ceramic such as aluminum oxide or zirconium oxide. Instead, the tip can be a piece of ceramic which is mounted onto a broad metal band by means of a short length of metal tubing.

REFERENCES:
patent: 1246339 (1917-11-01), Smit
patent: 3035838 (1979-05-01), Hirsch et al.
patent: 3203829 (1965-08-01), Seyer et al.
patent: 4151838 (1979-05-01), Crew
patent: 4610243 (1986-09-01), Ray
Handbook of Chemistry and Physics, published by The Chemical Rubber Co..COPYRGT. 1966 and earlier years.
Van Nostrand's Scientific Encyclopedia,.COPYRGT. 1976.
The Surgical Armamentarium, Title Page and p. 66, 1980.

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