本发明属于金属支架技术领域,具体涉及一种生物可降解金属支架及其应用。所述生物可降解金属支架整体呈管状网形结构,包括若干主体结构支撑环,每个主体结构支撑环由顺次连接成波浪形结构的若干个主体单元组成；相邻两个主体结构支撑环间由若干个连接筋连接,所述连接筋呈“S”形。本发明的连接筋为“S”形,弯曲后形态良好,可以明显地改善传统的直线型连接筋由于弯曲导致的在周向上受力不均匀、弯曲内侧单元接触、弯曲外侧产生翘曲的现象,大大提高支架柔顺性和顺应性；通过主体单元的优化设计,在极大地提高了支架的支撑性能的同时,有效地兼顾了支架的压握扩张变形,降低了支架的应力集中现象,具有高径向支撑力和低回弹率。

The invention belongs to the technical field of metal stents, and specifically relates to a biodegradable metal stent and its application. The biodegradable metal stent has a tubular net-shaped structure as a whole, and includes a plurality of main structure support rings, each main structure support ring is composed of a plurality of main units connected in a wavy structure; two adjacent main structure support rings It is connected by a plurality of connecting ribs, and the connecting ribs are in an "S" shape. The connecting rib of the present invention is in an "S" shape, and the shape after bending is good, which can obviously improve the phenomenon of uneven force in the circumferential direction caused by bending of the traditional linear connecting rib, contact of the inner unit of the bending, and warping of the outer side of the bending , Greatly improve the flexibility and compliance of the stent; through the optimized design of the main unit, while greatly improving the support performance of the stent, it effectively takes into account the compression expansion and deformation of the stent, reducing the stress concentration of the stent, and has a high Radial support force and low rebound rate.