首页> 外文会议>International conference on advancements of medicine and health care through technology >CFD Analysis Study on the Impact of the Coronary Anatomy on the Efficiency of the Coronary Thrombectomy: The Effect of Bend Angles
【24h】

CFD Analysis Study on the Impact of the Coronary Anatomy on the Efficiency of the Coronary Thrombectomy: The Effect of Bend Angles

机译:冠状动脉解剖对冠状动脉血栓切除术效率影响的CFD分析研究:弯曲角度的影响

获取原文
获取原文并翻译 | 示例

摘要

Primary percutaneous coronary intervention is effective in opening the infarct-related artery in patients with myocardial infarction with ST-segment elevation. However, the embolization of athero-thrombotic debris induces micro vascular obstruction and diminishes myocardial reperfusion. The aspiration catheter's design, the coronary anatomy and the physical properties of the thrombi are key factors in ensur ing a successful interventional procedure. The aim of our study is to use computational fluid dynamics (CFD) analysis for assessing the impact that the thrombus age and the coronary anatomy might have on the aspiration effi ciency. A generic model of an Export AP (Medtronic) catheter tip was created and extended with distal shafts having differ ent bend angles. Double bended catheter shafts were also con sidered. A two-phase CFD model with different values for the viscosity of the thrombus was implemented in ANSYS-CFX, allowing us to explore the impact of the viscosity on the effi ciency of the aspiration. Some authors have recently used in-vitro tests for exploring the impact of the bends angles and thrombus age on the effi ciency of some commercial thrombus aspiration devices, in cluding the Export catheter.
机译:原发性经皮冠状动脉介入治疗可有效打开ST段抬高的心肌梗死患者的梗死相关动脉。但是,动脉粥样硬化血栓栓塞的栓塞会引起微血管阻塞并减少心肌的再灌注。抽吸导管的设计,冠状动脉解剖结构和血栓的物理特性是确保成功进行介入手术的关键因素。我们研究的目的是使用计算流体动力学(CFD)分析来评估血栓年龄和冠状动脉解剖结构可能对抽吸效率的影响。创建了Export AP(Medtronic)导管末端的通用模型,并使用具有不同弯曲角度的远侧轴进行了扩展。还考虑了双弯曲导管轴。在ANSYS-CFX中实现了具有不同血栓粘度值的两阶段CFD模型,这使我们能够探索粘度对抽吸效率的影响。一些作者最近使用了体外测试来探索弯曲角度和血栓年龄对某些商用血栓抽吸装置(包括出口导管)的效率的影响。

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