PROBLEM TO BE SOLVED: To provide a high-frequency treatment tool for an endoscope, in which the electrode is not in danger of having a uselessly long protruding part, and a membrane opening-up operation and a bleeding arrest operation, for instance, can be done with a single instrument in succession and safety by arbitrarily changing an electrode thin in outer diameter into another thick in it.SOLUTION: The high-frequency treatment tool for an endoscope includes a conductive rod-like electrode 2A arranged in the way that it can protrude out of the end of a flexible sheath 1, a rod-like electrode regulating stopper 13 provided at the end of the flexible sheath 1 for regulating the maximum protruding length of rod-like electrode 2A from the end of flexible sheath 1, a conductive cylindrical electrode 2B arranged in the way that it can protrude out of the end of flexible sheath 1 to loosely cover the rod-like electrode 2A, and a cylindrical electrode regulating stopper 7 provided at the side of the rod-like electrode 2A for regulating the maximum protruding length of cylindrical electrode 2B from the end of flexible sheath 1.COPYRIGHT: (C)2010,JPO&INPIT【課題】電極突出長が無用に長くなりすぎるおそれがなく、外径の細い電極と太い電極とを任意に切り換えて、粘膜切開処置と止血処置等を一つの装置で連続して安全に行うことができる内視鏡用高周波処置具を提供すること。【解決手段】可撓性シース1の先端から前方に突没自在に配置された導電性の棒状電極2Aと、可撓性シース1の先端からの棒状電極2Aの最大突出長を規制するために可撓性シース1の先端部分に設けられた棒状電極規制ストッパ13と、可撓性シース1の先端から前方に突没自在に棒状電極2Aに緩く被嵌された状態に配置された導電性の筒状電極2Bと、可撓性シース1の先端からの筒状電極2Bの最大突出長を規制するために棒状電極2A側に設けられた筒状電極規制ストッパ7と、が設けられている。【選択図】 図1
