PROBLEM TO BE SOLVED: To provide a medical stent with distal resistance force being strengthened.SOLUTION: A medical stent of the present invention is provided by forming a tube expansion part being larger than the diameter of a cylindrical body or a flange at both ends of the central cylindrical body of the stent for penetrating and connecting two adjacent tissue layers. The medical stent with distal resistance force being strengthened is provided which is characterized by comprising the stent of a single diameter, a washer-shaped end formed by outwardly bending both ends of the stent at both ends in the length direction of the cylindrical body of the stent, and a resistance force strengthening ring formed to be overlapped in piles in an outer circumference of an expanded washer-shaped end and having large resistance force to the radial force applied from the outside of the stent.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】端部の抵抗力が強化された医療用ステントを提供する。【解決手段】本発明は、2つの隣接した組織層を貫通連結するためにステントの中心部円筒状本体の両端に前記円筒状本体の直径よりも大きい拡管部またはフランジを形成してなる医療用ステントであって、 単一の直径のステントと、前記ステントの円筒状本体の長さ方向の両側端に、前記ステントの両端部を外向きに折り曲げて形成されるワッシャー状の端部と、拡張したワッシャー状の端部の外周に多重に重ねて形成され、ステントの外部から加わる半径方向力(radial force)に対して大きな抵抗力を持つ抵抗力強化リングとを含んでなることを特徴とする、端部の抵抗力が強化された医療用ステントを提供する。【選択図】図3
