Electrosurgical knife
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United States of America Patent
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-
Oct 24, 1989
Issued Date -
N/A
app pub date -
Aug 10, 1987
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrosurgical knife includes a stainless steel blade whose surface is abraded or etched, a first coat of primer material applied over the blade, where the surface of the primer material is also abraded or etched, and a second coat of non-stick fluorinated hydrocarbon material applied over the coat of primer material to cover the primer material, for a total thickness of about three mils. The stainless steel blade is completely covered by the coatings but the thickness of the coatings is not so great as to prevent conduction of radio-frequency electrical energy from the blade through the coatings to tissue being cut.
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