PROBLEM TO BE SOLVED: To provide a treatment tool insertion tool, in which workability of a treatment tool operation part is improved by virtue that rotating direction of a treatment tool guide part is uniquely defined along an insertion part of an insertion apparatus.SOLUTION: A treatment tool insertion tool comprises a pipe 21 leading a treatment tool 31 to a treatment tool insertion port 10b 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 an equipment mouth metal 24 on which a hole is formed, whose periphery corresponds to a shape of an end surface of a treatment tool insertion port metal having a non point symmetric plane shape with respect to the center of the treatment tool insertion port 10b, in which the hole may be attached/detached onto the treatment tool insertion port metal, and which is arranged on the other end 21b of the pipe 21.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】処置具案内部を挿入機器の挿入部に沿って回動方向を一意に規定して配置できることにより、処置具操作部の操作性が向上された処置具挿通具を提供する。【解決手段】処置具31を、処置具挿通口10bに導くチューブ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、処置具挿通口10bの中心に対して非点対称な平面形状を有する処置具挿通口金の端面の形状に対して、外周が対応する孔が形成されるとともに、孔が処置具挿通口金に係脱自在な、チューブ21の他端21bに設けられた装着口金24と、を具備する。【選択図】図1
