To provide a stent that allows the diameter to be uniformly reduced as a whole, and allows the stent to be expanded uniformly as a whole.SOLUTION: A stent 100 includes a filamentous strut 110 forming a cylindrical outer periphery in which gaps are formed. The strut includes a spiral part 111 that extends spirally in a circumferential direction D2 while being folded back in a wave shape in an axial direction D1, endless annular parts 114 and 115 arranged at both ends along the axial direction of the spiral part while being folded back in a wave shape in the axial direction, and a connection part 116 that extends in a direction S2 opposite to a spiral direction S1 of the spiral part in the axial direction while being folded back in a wave shape in the axial direction, and connects the spiral part and the annular parts to each other.SELECTED DRAWING: Figure 2【課題】全体を均一に縮径かつ拡張させることのできるステントを提供する。【解決手段】隙間が形成された円筒形状の外周を形作る線状のストラット１１０を有するステント１００であって、ストラットは、軸方向Ｄ１に波状に折り返されつつ、周方向Ｄ２に螺旋状に延在する螺旋部１１１と、軸方向に波状に折り返されつつ、螺旋部の軸方向に沿う両端部に配置された無端状の環状部１１４、１１５と、軸方向に波状に折り返されつつ、軸方向において螺旋部の螺旋の向きＳ１と反対の向きＳ２となるように延在し、螺旋部および環状部を連結する連結部１１６と、を有する。【選択図】図２
