STENT

To provide a stent including an anchor member, the stent being storable in a delivery system and, when a diameter thereof is enlarged, allowing the anchor member to spread radially outward.SOLUTION: A stent 1A includes: a stent body 2 configured into a cylindrical shape by braiding wire rods 20 into a net-like shape; a diameter-enlarging mechanism 3 deforming the stent body 2 from a diameter-reduced state to a diameter-enlarged state and retaining the state; and an annular anchor member 4A that is comprised of a wire rod 40, attached to a part retained in the diameter-enlarged state out of the stent body 2, along the circumferential direction so as to sew the net formed of the wire rods 20, and has a projection portion 41 projecting radially outward the stent body 2 in the diameter-enlarged state. In the diameter-reduced state, the anchor member 4A can be deformed along an axial direction and, in the diameter-enlarged state, the anchor member 4A is clamped and fixed by the wire rods 20, with the projection portion 41 projected radially outward.SELECTED DRAWING: Figure 1 【課題】アンカー部材を備えるステントにおいて、デリバリーシステムへ収納可能であり、拡径時にアンカー部材が径方向外側に展開可能なステントを提供する。【解決手段】ステント１Ａは、線材２０で網目状に編組されて円筒状に構成されるステント本体部２と、ステント本体部２を縮径状態から拡径状態に変形させて維持する拡径機構３と、線材４０で構成され、線材２０で形成される網目を縫うように、ステント本体部２のうち拡径状態が維持される部分に周方向に沿って取り付けられ、拡径状態においてステント本体部２の径方向外側に突出する突出部４１を有する環状のアンカー部材４Ａと、を備え、縮径状態においてアンカー部材４Ａは、軸方向に沿って変形可能であり、拡径状態において、アンカー部材４Ａは、突出部４１が径方向外側に向かって突出した状態で、線材２０により軸方向に挟まれて固定される。【選択図】図１