PURPOSE:To enable prompt dealing with even when bleeding arises by making it possible to execute high-frequency treatment without replacing a high-frequency treating device, etc. CONSTITUTION:This excision instrument for surgery is constituted by constituting an insertion part 2 connected to a body 1 contg. a motor 4 of an outside pipe 14 and an inside pipe 15 freely rotatable within this outside pipe 14 and providing the front end of this insertion part 2 with an excision part 19. This excision part 19 is provided with an active cord 20 as a high-frequency current impressing means for impressing a high-frequency current thereto.
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