PROBLEM TO BE SOLVED: To provide a treatment tool insertion tool having a configuration where a treatment tool guide part may be easily rotated and workability of the treatment tool is improved by a feature that a moving direction of a treatment tool operation part is identical with a moving direction of the treatment tool on a treatment tool insertion path.SOLUTION: A treatment tool insertion tool comprises: a pipe 21 guiding a treatment tool 31 into a subject via an insertion part 2 a treatment tool holding part 22 which is arranged along the insertion part 2 and arranged on one end 21a of the pipe 21 a treatment tool operation part 23 movably arranged along an extending direction E onto the treatment tool holding part 22 and a moving direction turning over part 24 which is arranged in the treatment tool holding part 22, onto which the treatment tool operation part 23 is connected, and which moves the treatment tool 31 in the pipe 21 to a direction opposite to a movement direction of the treatment tool operation part 23 along extending direction E in a linked manner with movement of the treatment tool operation part 23.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】処置具案内部の取り回しが良く、かつ処置具操作部の移動方向と処置具挿通路における処置具の移動方向とが一致することにより処置具の操作性が向上された構成を具備する処置具挿通具を提供する。【解決手段】処置具31を、挿入部2を介して被検体内に案内するチューブ21と、挿入部2に沿って設けられるとともに、チューブ21の一端21aに設けられた処置具保持部22と、処置具保持部22に対して延在方向Eに沿って移動自在に設けられた処置具操作部23と、処置具保持部22内に設けられるとともに処置具操作部23が接続され、処置具操作部23の移動に伴い、延在方向Eに沿って処置具操作部23が移動する方向とは逆方向にチューブ21において処置具31を移動させる移動方向反転部24と、を具備する。【選択図】図1
