• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Artificial Organs >Hemodynamic Performance of a New Punched Stent Strut: A Numerical Study
【24h】

Hemodynamic Performance of a New Punched Stent Strut: A Numerical Study

机译：新型穿孔支架的血流动力学性能：数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Local flow disturbance by arterial stent struts has been shown to play an important role in stent thrombosis. To reduce the local flow disturbance near a stent strut, we proposed a new concept of stent design with small holes in the stent struts. The present study evaluated the new design numerically by comparing it with the traditional stent in terms of local hemodynamic parameters such as flow velocity, flow recirculation area, time-averaged wall shear stress (TAWSS), oscillating shear index (OSI), and relative residence time (RRT). The results demonstrated that when compared with the traditional strut, the new design could significantly enhance flow velocity and reduce the flow recirculation zone in the vicinity of the strut. Moreover, the new design would significantly elevate TAWSS and remarkably reduce OSI and RRT along the host arterial wall. In conclusion, the new design of stent struts with punched holes is advantageous over the traditional one in the aspect of improving local hemodynamics, which may reduce thrombosis formation and promote re-endothelialization after stenting.
机译：动脉支架支柱引起的局部血流紊乱已显示在支架血栓形成中起重要作用。为了减少支架支撑杆附近的局部流动扰动，我们提出了一种在支架支撑杆上带有小孔的支架设计新概念。本研究通过将其与传统支架在局部血液动力学参数（如流速，血流再循环面积，时间平均壁切应力（TAWSS），振荡剪切指数（OSI）和相对滞留率）方面进行比较，对它进行了数值评估。时间（RRT）。结果表明，与传统支杆相比，新设计可以显着提高流速并减少支杆附近的流动回流区域。此外，新设计将显着提高TAWSS并显着降低宿主动脉壁的OSI和RRT。总而言之，新的带孔支架的设计在改善局部血流动力学方面优于传统设计，可减少血栓形成并促进支架置入后的再内皮化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号