Stent and living organ dilator

A stent configured to closely contact tissue in vivo by being deformed when set indwelling in vivo, the stent comprising:

• a plurality of linear components configured to deform and exhibit a force for maintaining dilation when the stent is set indwelling in vivo, the linear components comprising a plurality of non-biodegradable metallic linear components and a plurality of biodegradable material-made linear components, the biodegradable material-made linear components being bonded to the non-biodegradable metallic linear components;
• both the non-biodegradable metallic linear components and the biodegradable material-made linear components contributing to the stent exhibiting the force for maintaining the dilation when the stent is left indwelling in vivo;
• and
• after a predetermined period of time following the stent being left indwelling in vivo, biodegradation of the biodegradable material-made linear components proceeds so that the force for maintaining the dilation is lowered,
• wherein the biodegradable material-made linear components are connected to the metallic linear components at respective joints, the biodegradable material-made liner components crossing the non-biodegradable metallic linear components such that they intersect each other at the joint, the biodegradable material-made linear components covering an outer surface and an inner surface of the metallic linear component at the joint;
• and
• wherein the non-biodegradable metallic linear components include zigzag shaped portions and the biodegradable material-made linear components include zigzag shaped portions, the non-biodegradable metallic linear components comprising a plurality of metallic linear spiral members extending in a spiral manner in relation to an axial direction of the stent, the plurality of metallic linear spiral members being interconnected by the biodegradable material-made linear components.