PROBLEM TO BE SOLVED: To provide a treatment instrument that has a structure enabling further miniaturization.SOLUTION: A treatment instrument of the present invention includes: a long insertion part 10 a treatment part 20 provided at the tip end of the insertion part and having a pair of forceps members 21, 22 enabling relative turning around a turning shaft 23a an operation part provided at a proximal end of the insertion part and operation wire 31, 32 connected to the forceps members and the operation part, and arranged in the inside of the insertion part. Each of the pair of forceps members has shaft holes 21a, 22a with the turning shaft inserted therethrough and pin holes 21b, 22b provided at a base end side rather than the shaft holes. Pins 25 having insertion holes are inserted in the pin holes, and the operation wire is joined to the pins while the tip end of the operation wire is inserted in the insertion holes, and whereby the forceps members are connected with the operation wire.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】更なる小型化が可能な構造を有する処置具を提供する。【解決手段】本発明の処置具は、長尺の挿入部10と、挿入部の先端部に設けられ、回動軸23aを中心に相対回動可能な一対の鉗子部材21、22を有する処置部20と、挿入部の基端部に設けられた操作部と、鉗子部材と操作部とに接続されて挿入部内に配置された操作ワイヤ31、32とを備え、一対の鉗子部材の各々は、回動軸が挿通される軸孔21a、22aと、軸孔よりも基端側に設けられたピン穴21b、22bとを有し、ピン穴には、挿通穴を有するピン25が挿通され、操作ワイヤの先端部が挿通穴に挿通された状態で操作ワイヤとピンとが接合されることにより、鉗子部材と操作ワイヤとが接続されている。【選択図】図2
