Deploying a stent to restore blood flow in the coronary artery is very complicated, as its internal diameter is smaller than 3[Formula: see text]mm. It has already been proven that mechanical stresses induced on stent and artery during deployment make the placement of stent very difficult, besides the development of complications due to artery damage. Various stent designs have already been developed, especially in the metallic category. Still, there are possibilities for developing new stent designs and patterns to overcome the complexities of the existing models. Also, the technology of metallic stents can be carried forward towards the development of bioresorbable polymeric stents. In this work, three new stent cell designs (curvature, diamond, and oval) have been proposed to obtain better performance and life. The finite element method is utilized to explore the mechanical behavior of stent expansion and determine the biomechanical stresses imposed on the stent and artery during the stenting procedure. The results obtained have been compared with the available literature and found that the curvature cell design develops lower stresses and, hence, be suitable for better performance and life.

中文翻译：

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新支架模型的设计和分析以提高性能

部署支架以恢复冠状动脉中的血流非常复杂，因为其内径小于3[公式：见正文]mm。已经证明，在展开过程中对支架和动脉产生的机械应力使支架的放置非常困难，此外还会因动脉损伤而出现并发症。已经开发了各种支架设计，特别是在金属类别中。尽管如此，仍有可能开发新的支架设计和模式以克服现有模型的复杂性。此外，金属支架技术可以朝着生物可吸收聚合物支架的发展方向发展。在这项工作中，提出了三种新的支架单元设计（曲率、菱形和椭圆形）以获得更好的性能和寿命。有限元法用于探索支架扩张的力学行为，并确定在支架植入过程中施加在支架和动脉上的生物力学应力。获得的结果与现有文献进行了比较，发现曲率单元设计产生了较低的应力，因此适用于更好的性能和寿命。