To provide a deployment article delivery system that can be used as both of an RX type and OTW type.SOLUTION: A deployment article delivery system 10 includes: an outer tubular body 30 having a tip and a base end； an inner tubular body 40 disposed inside the outer tubular body 30, the inner tubular body having a tip and a base end； a stent 20 housed in the outer tubular body 30； a base end marker 53 positioned between the stent 20 and the base end and connected to the inner tubular body 40； and an operation part 60 to which the inner tubular body 40's base end is connected. As the outer tubular body 30 moves in an axial direction X relatively to the inner tubular body 40, the stent 20 comes into contact with the base end marker 53 and is enabled to deploy from the outer tubular body 30. An internal cavity of the inner tubular body 40 continuously communicates with a base end side operation part opening surface 68A provided on the operation part 60. The inner tubular body 40 has an internal opening surface 46, passing from the inside to the outside, formed on an outer surface. The internal opening surface 46 is positioned between the base end marker 53 and the base end.SELECTED DRAWING: Figure 2【課題】ＲＸ型およびＯＴＷ型の両方で使用可能な展開物デリバリーシステムを提供する。【解決手段】先端および基端を備える外側管状体３０と、外側管状体３０の内側に配置され、先端および基端を備える内側管状体４０と、外側管状体３０に収容されるステント２０と、ステント２０より基端側に位置し、内側管状体４０に接続される基端マーカー５３と、内側管状体４０の基端部が接続される操作部６０と、を有し、外側管状体３０が内側管状体４０に対して相対的に軸方向Ｘに移動することに伴い、ステント２０が基端マーカー５３に当接して外側管状体３０から展開可能である展開物デリバリーシステム１０であって、内側管状体４０の内腔は、操作部６０に設けられた基端側操作部開口面６８Ａに連続して通じ、内側管状体４０は、内外に貫通する内側開口面４６が外面に形成され、内側開口面４６は、基端マーカー５３より基端側に位置する。【選択図】図２
