国产新型叶轮泵的体外测试  

In Vitro Testing of a New Implantable Ventricular Assist Rotary Pump Made in China

作　　者：李京倖[1] 李国荣[1] 朱晓东[1] 钱坤喜[2] 胡盛寿[1] 韩京梅[1] 任兵[1] 龙村[3] 杨天宇[3] 

机构地区：[1]中国医学科学院中国协和医科大学阜外心血管病医院辅助循环及瓣膜研究室,北京100037 [2]江苏理工大学生物医学工程研究所,镇江212013 [3]中国医学科学院中国协和医科大学阜外心血管病医院体外循环科,北京100037

出　　处：《生物医学工程学杂志》2000年第3期259-261,共3页Journal of Biomedical Engineering

摘　　要：在体外模拟测试台上测试新型国产叶轮泵的血流动力学特性 ,以便指导动物实验乃至临床应用。在一定的前负荷下 ,通过改变叶轮泵流入道、流出道内径及后负荷 ,测定在 75 %的满负荷工作条件下泵的入口压、泵压、泵流量及相关血流动力学参数。结果表明 :当所有管道内径为 8m m,平均后负荷 6 0 mm Hg(1mm Hg=0 .133k Pa)时 ,泵流量为 5 .32 L / min。后负荷 90 m m Hg时 ,用临床常用内径管道测试 ,泵流量大于 1.5 L / m in,泵压均在 12 0mm Hg以上。本叶轮泵体积小 ,能耗低 ,血流动力学参数适合动物实验及临床的需要。We have measured the hemodynamic properties of the rotary pump in order to give directions for use in animal test and even in clinical application. In our mocking circulation circuit, under definite preload,the inner diameter of inlet and outlet cannulae and the afterload have been changed for measuring the pressure of input and output of the pump and the pump flowing rate when it runs under 75% maxim working condition. The results demonstrate that with the cannulae of inner diameter of 8 mm as drainage, the pump provides 5.32 L/min of output aganist a mean afterload of average 60 mmHg(1mmHg=0.133kPa) with a filling pressure of 10 mmHg. With the cannulae usually used in clinical setting, the flowing rates are more than 1.5 L/min against a mean afterload of 90 mmHg, and all output pressure of the pump is higher than 120 mmHg. In conclusion, the volume of the rotary pump is small, the needed power is low, and the hemodynamic parameters are suitable for animal test and even for clinical use.

关 键 词：叶轮泵 左心室辅助 心功能衰竭 人工心脏 

分 类 号：R319[医药卫生—基础医学]