本发明涉及一种血管支架。血管支架包括多个支撑环及多个连接杆,多个支撑环沿血管支架的长度方向间隔分布,连接杆连接于对应的相邻两个支撑环之间,且至少一部分的连接杆的壁厚小于支撑环的厚度。该血管支架可以在指定的位置区域进行不同壁厚的设计,对血管支架的细节结构做出调整,以达到血管支架存在不同壁厚的效果,这样既可以保证减薄位置(即连接杆)的柔顺性,又减少了低剪应力区的产生,降低了涡流产生几率,降低二次狭窄率,同时确保了其余未减薄壁厚的位置(即支撑环)的强度,使得血管支架整体仍保持良好的支撑性能。
The invention relates to a vascular stent. The vascular stent comprises a plurality of supporting rings and a plurality of connecting rods, which are distributed at intervals along the length direction of the vascular stent. The connecting rods are connected between the corresponding two adjacent supporting rings, and the wall thickness of at least part of the connecting rods is less than the thickness of the supporting rings. The vascular stent can be designed with different wall thicknesses in the designated location area, and the detailed structure of the vascular stent can be adjusted to achieve the effect of different wall thicknesses of the vascular stent. In this way, the flexibility of the thinning position (i.e. the connecting rod) can be ensured, and the generation of low shear stress zone, eddy current generation probability and secondary stenosis rate can be reduced. At the same time, the strength of the remaining positions with unreduced wall thickness (i.e. the supporting ring) was ensured, so that the stent as a whole still maintained good supporting performance.