PROBLEM TO BE SOLVED: To provide a treatment instrument for an endoscope, having improved liquid delivery performance.SOLUTION: The treatment instrument for an endoscope includes: a cap member 19 that is disposed at the tip of a sheath, and in which liquid discharge openings 43A, 43B through which liquids are discharged are formed and an electrode 21 that is supported by the cap member 19. The electrode 21 includes: a rod-shaped electrode 45 that is disposed so as to project from and retract into the cap member 19 and a tip member 47 that is connected to the tip of the rod-shaped electrode 45, and extends in at least two directions intersecting the longitudinal axis of the rod-shaped electrode 45. Liquid delivery areas 49A, 49B, through which discharged liquids are forced to flow, are disposed on the tip member 47 over the extended axis line of the liquid discharge openings 43A, 43B formed in the cap member 19.COPYRIGHT: (C)2012,JPO&INPIT【課題】送液性能が向上された内視鏡用処置具を提供する。【解決手段】内視鏡用処置は、シース先端に設けられ液体を噴出する液体噴出口43A,43Bが形成されたキャップ部材19と、キャップ部材19に支持された電極部21とを有する。電極部21は、キャップ部材19に突没自在に配置された棒状電極45と、棒状電極45の先端に接続され、棒状電極45の長手軸と交差する少なくとも二方向に拡がる先端部材47とを有する。先端部材47には、キャップ部材19に形成された液体噴出口43A,43Bの延長軸線上に、噴出された液体を通過させる送液領域49A、49Bを配置した。【選択図】図2
