Surgical instrument having self-regulated electrical...

Details Surgical instrument having self-regulated electrical... Surgical instrument having self-regulated electrical...

A - Human Necessities

61

B

164/1, 128/113,

A61B 17/14 (2006.01) A61B 18/08 (2006.01)

Patent

CA 1083457

SURGICAL INSTRUMENT HAVING SELF-REGULATED ELECTRICAL INDUCTION HEATING OF ITS CUTTING EDGE AND METHOD OF USING THE SAME Abstract of the Disclosure The cutting edge of a scalpel blade is electrically heated by induction of circulating currents in the internal structure of the blade near the cutting edge. Selective heating of regions of the cutting edge that are locally cooled by contact with tissue during surgical cutting is pro- vided by constructing the blade of ferromagnetic materials that have a Curie point in the operating temperature range and that provide large increases in permeability for tempera- ture decrements below the Curie point.

246544

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