新型髂静脉支架植入髂静脉的局部流场粒子图像测试研究  

Effect of designed iliac venous stent implantation on local flow field by particle image velocimetry

作　　者：张喜成[1] 奚斌 黄才安 孙元[1] 陈兆雷[1] 徐淼[1] 李晓强[3] 

机构地区：[1]江苏省苏北人民医院血管外科,江苏扬州225001 [2]扬州大学水利科学与能源动力工程学院,江苏扬州225001 [3]苏州大学附属第二医院血管外科,江苏苏州215000

出　　处：《中国普外基础与临床杂志》2017年第5期551-554,共4页Chinese Journal of Bases and Clinics In General Surgery

基　　金：扬州市社会发展科技攻关项目(编号:2012146)

摘　　要：目的测试一款我们自行设计的新型髂静脉支架植入髂静脉体外物理模型的局部流场变化。方法制作髂-腔静脉连接部的体外物理模型,将设计的新型髂静脉支架和常规血管支架植入体外物理模型中,分别采用粒子图像测速技术测试不同支架植入后的局部流场变化。结果粒子图像测速技术的测试结果显示,常规血管支架植入后,双侧髂静脉汇合后的液体主流动方向右侧偏移,并出现局部的低流速区域;而植入新型髂静脉后,局部流场则无明显的流场变化,也无涡流产生。结论常规的血管支架按照常规技术植入髂静脉且支架近心端覆盖对侧髂静脉开口,会对局部流场产生一定程度的影响;而设计的新型髂静脉支架植入后,对局部流场没有明显的影响。Objective To evaluate changes of local flow field following implantation of a designed iliac venous stent. Methods An in vitro physical model with iliocava junction was established. A modified iliac venous stent was implanted into one side and a conventional stent into the other side. The bilateral local flow fileds following implantation of stents were measured by using particle image velocimetry. Results The results of particle image velocimetry testing revealed that the main flow orientation was shifted to the right side and the region of slowly local flow was observed after implantation of conventional iliac venous stent. However, no evident changes were noted in the local flow field and no whirling flow was detected following implantation of the designed iliac venous stent. Conclusion Conventional stent is implanted into iliac vein by using a traditional technique and stent is proximal to heart and covers opening of contralateral iliac vein, which exerts certain influence upon local flow field. Local flow field has no obvious change following implantation of a designed iliac venous stent.

关 键 词：髂静脉 裸支架 粒子图像测速技术 

分 类 号：R543.6[医药卫生—心血管疾病]