| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stent wherein damage to a blood vessel caused by flare phenomenon when it meanders in the blood vessel can be suppressed as little as possible and resistance when clipping to a balloon is performed can be decreased. SOLUTION: In a stent 1 formed into an approximately cylindrical body and stretchable in the radial direction from the inside of the cylindrical body, an annular unit 4 is constituted in such a way that constituent elements 2 respectively constituted by connecting four pieces of approximately wave-like constituent elements 6 (6A) with each other up and down and left and right around a point O as a center are connected with other constituent elements 2 up and down through connecting parts 3 and arranging a plurality of them so as to surround the central axis of the stent 1, and a plurality of the annular units 4 are extended in the axial direction of the stent and the annular units 4 are connected with each other at one or more positions each with a connecting part 5 consisting of an approximately straight line part 7 and bending parts 8.</p> |
