PROBLEM TO BE SOLVED: To provide a stent delivery system which prevents indwelling work of a stent from becoming complicated even when it is used with a treatment instrument for another endoscope simultaneously, and an indwelling method of a stent using the stent delivery system.SOLUTION: A stent delivery system comprises: a cylindrical inner sheath member arranged outside an endoscope a cylindrical outer sheath member arranged outside the inner sheath member and a pusher member which is arranged between the inner sheath member and the outer sheath member at the base end side of the inner sheath member and the outer sheath member, and can push out a stent disposed between the inner sheath member and the outer sheath member at the distal end side of the inner sheath member and the outer sheath member.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】他の内視鏡用の処置具と同時に用いた場合であってもステントを留置する作業が煩雑にならないステントデリバリーシステム及びそのステントデリバリーシステムを用いたステントの留置方法を提供すること。【解決手段】内視鏡の外側に配置される筒状の内側シース部材と、前記内側シース部材の外側に配置される筒状の外側シース部材と、前記内側シース部材及び前記外側シース部材の基端側における前記内側シース部材と前記外側シース部材との間に配置され、前記内側シース部材及び前記外側シース部材の先端側における前記内側シース部材と前記外側シース部材との間に配置されたステントを押し出し可能な押し子部材を備えるステントデリバリーシステム。【選択図】図1
