STENT DEVICE

To provide a stent device suitably compatible with a biological region with bending.SOLUTION: A stent graft 1 includes: a cylindrical stent extending in an axial direction; and a bending auxiliary member 4 which is brought into contact with the stent on a first contact point 41 at a first end side in the axial direction and a second contact point 42 at a second end side opposite to the first end side of the stent in the axial direction, and in which at least one intermediate point between the first contact point 41 and the second contact point 42 is located at a different position in a circumferential direction of the cylindrical stent from the first contact point 41 and the second contact point 42. The bending auxiliary member 4 is formed in a figure 8 shape having a first ring 41A disposed with the first contact point 41, a second ring 42A disposed with the second contact point 42, and a contact point 45 of the first ring 41A and the second ring 42A constituting an intermediate point, and is arranged along an outer peripheral surface of the cylindrical stent.SELECTED DRAWING: Figure 4 【課題】屈曲のある生体部位に好適に適合できるステントデバイス等を提供する。【解決手段】ステントグラフト１は、軸方向に延びる筒状のステントと、軸方向におけるステントの第１端側の第１接点４１と、軸方向におけるステントの第１端側と反対の第２端側の第２接点４２でステントと接触する屈曲補助部材４であって、第１接点４１および第２接点４２の間の少なくとも一つの中間点は、筒状のステントの周方向の位置が当該第１接点４１および当該第２接点４２と異なる屈曲補助部材４と、を備える。屈曲補助部材４は、第１接点４１が設けられる第１リング４１Ａと、第２接点４２が設けられる第２リング４２Ａと、中間点を構成する第１リング４１Ａおよび第２リング４２Ａの接続点４５と、を備える８の字形状に形成され、筒状のステントの外周面に沿って配置される。【選択図】図４