目的:研究介入治疗中最常使用的医用指引导管的材料选择、推送力、扭力和扭控性。为更好的研究和指导临床选择使用医用指引导管提供技术依据。方法:对比三家国外厂商医用指引导管的材料组成,通过导管综合性能测试仪,测试三家产品的推送力、扭力和扭控性,并对结果进行分析。结果:三家国外厂商选用的指引导管内层、外层和编制层的材料基本一致。结论:经测试,指引导管到达指定部位所需最大推送力最小,可以较快速的到达病患部位;扭控性好的指引导管,可以较好的处理扭曲血管;旋转两周时所需的扭力最小的指引导管操作性好,可以较好处理解剖复杂的血管。
Objective: This paper focuses on the most commonly used Guiding Catheter and conduct study on material selection, push force, torque and twist controllability. Methods:In contrast to the method used in our clinical surgery three foreign manufacturers of medical guidelines for catheter materials, testing foreign manufacturers’ products. Conclusions analyzing t foreign products their own characteristics, provide the technical basis for better medical research and clinical guidelines for catheter performance. Results: Three foreign guiding catheter manufacturers selected the same materials, after testing, the guiding catheter has the best maximum pushing force, can quickly reach the site of disease. Conclusion: The guiding catheter has the best torque control, can better use in distorted vessel;the guiding catheter has the best twist controllability, can deal with complex vascular anatomy.