초록 ▼

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 c

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.

대표청구항 ▼

A method of fabricating an electrosurgical knife for use with a source of radio-frequency energy in cutting and cauterizing tissue, said method comprising (a) providing an elongate stainless steel blade having a cutting edge at one end thereof, with the other end being coupleable to an energy source

A method of fabricating an electrosurgical knife for use with a source of radio-frequency energy in cutting and cauterizing tissue, said method comprising (a) providing an elongate stainless steel blade having a cutting edge at one end thereof, with the other end being coupleable to an energy source, (b) abrading at least a portion of the surface of the blade, (c) applying a first coat of primer material by dipping, to at least the cutting edge of the blade, (d) baking the first coat, (e) abrading the surface of the first coat, (f) applying a second coat of non-stick material over the first coat by dipping, wherein the second coat is Teflon product 455-119, and (b) baking the second coat.