PROBLEM TO BE SOLVED: To provide a treatment instrument capable of easily holding a recovery loop provided on a stent.SOLUTION: A treatment instrument 1 includes a first forceps piece 21 and a second forceps piece 22, where at least one of them is rotationally turned about a rotational axis. The second forceps piece 22 includes a hook part projecting towards the first forceps piece 21, at a tip end thereof. When viewing a grip part from the axial direction of the rotational axis, the thickness of the first forceps piece 21 gradually decreases towards the tip end of the first forceps piece 21, and, in the natural state, the first forceps piece 21 projects diametrically outward a sheath 10. When the grip part is closed by an operation of an operation part 30, an extension direction of the grip part and a longitudinal axis L cross with each other at the tip side with respect to the rotational axis so as to form an acute angle.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】ステントに設けられた回収用ループを容易に把持することが可能な処置具を提供する。【解決手段】処置具1は、第1の鉗子片21及び第2の鉗子片22のうち少なくとも一方が回動軸まわりに回動し、第2の鉗子片22の先端部に第1の鉗子片21に向かって突出する鉤部が設けられ、回動軸の軸線方向から把持部を見たときに、第1の鉗子片21の厚みが第1の鉗子片21の先端に向かって減少し、自然状態において第1の鉗子片21がシース10の径方向外方に突出し、操作部30の操作により把持部が閉じたときに、把持部の延在方向と長手軸Lとが、回動軸よりも先端側で鋭角をなすように交差する。【選択図】図2
