Surgical retractors
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United States of America Patent
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-
Apr 19, 1988
Grant Date -
N/A
app pub date -
Jul 17, 1986
filing date -
Jul 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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