PROBLEM TO BE SOLVED: To provide a stent, the diameter of which can be sufficiently reduced without the plurality of engaging portions overlapping each other when inserting into a sheath.SOLUTION: The stent is so formed that a wire W is circumferentially and axially advanced while being bent in a wave shape, and bent portions of the wave shape form engaging portions so as to create a tubular mesh pattern. The stent has a developed mesh pattern in which alternately arranged are: a first mesh connected portion 10C in which a plurality of substantially parallelogram-shaped first meshes 10 having the engaging portions as vertexes are connected while sharing short sides of the parallelogram and a second mesh connected portion 20C in which a plurality of substantially trapezoid-shaped second meshes 20 having the engaging portions as vertexes are connected while sharing legs of adjacent trapezoids on bases thereof, the second meshes 20 sharing long sides of the parallelogram which is the shape of the first mesh 10 as the bases thereof. No more than three of the engaging portions are formed in the same axial direction position.COPYRIGHT: (C)2015,JPO&INPIT【課題】シースに挿入する際に、複数の掛合部が互いに重なり合うことがなく十分に縮径できるステントを提供すること。【解決手段】線材Wを波形に屈曲させながら周方向および軸方向に進行させ、波形の屈曲部同士の掛合部を形成して筒状の網目パターンとしたステントであり、掛合部を頂点とする略平行四辺形状の第1網目10が、平行四辺形の短辺を共有しながら複数連結されてなる第1網目連結部10Cと、第1網目10の形状である平行四辺形の長辺を、その底辺として共有する、掛合部を頂点とする略台形状の第2網目20が、底辺に隣り合う台形の脚を共有しながら複数連結されてなる第2網目連結部20Cとが交互に配列された展開網目パターンを有しており、3個を超える掛合部が同一の軸方向位置に形成されていない。【選択図】 図4A
