PROBLEM TO BE SOLVED: To provide a thin snare for an endoscope excellent in operability which enables a gripped capsule endoscope to smoothly pass through a pyloric ring.SOLUTION: A snare for an endoscope includes: an operation wire 2 a snare wire 3 connected to the tip of the operation wire 2 and a thread 5, one end of which is fixed to the most leading end part of the snare wire 3 when the snare wire is inserted into a snare sheath 6, the thread 5 being at least longer than the length of the snare sheath 6. One end of the thread may be fixed to the tip part of the snare wire 3, and the other end may be fixed to the wall surface in the vicinity of the tip of the snare sheath 6.COPYRIGHT: (C)2015,JPO&INPIT【課題】細くて操作性が良く、把持したカプセル内視鏡が幽門輪をスムーズに通過できるようにすることが可能な内視鏡用スネアを提供する。【解決手段】操作ワイヤ2と、操作ワイヤ2の先端に連結されたスネアワイヤ3と、スネアワイヤをスネアシース6に挿通したとき、スネアワイヤ3の最も先端となる部分に一端が固定された、少なくともスネアシース6の長さより長い糸5とを備えている内視鏡用スネア。糸は、一端をスネアワイヤ3の先端となる部分に、他端をスネアシース6の先端付近の壁面に固定しても良い。【選択図】図2