| 摘要 |
PROBLEM TO BE SOLVED: To provide a stent with a novel structure for easily understanding a degree of degradation of the stent by one contrast imaging.SOLUTION: In a stent 10, a framework has bio-absorbency, and a contrast imaging part 18 having an imaging property is provided in the framework. Time in which the contrast imaging part 18 disappears differs between regions in an axial direction. Preferably, in the stent 10, a shortest passage distance from a framework surface 20 beyond the contrast imaging part 18 in a transverse plane of the framework differs between the regions in the axial direction.SELECTED DRAWING: Figure 2 |
