排灌机械工程学报2025，Vol.43Issue(7)：649-655,662,8.DOI:10.3969/j.issn.1674-8530.23.0256
一款自主研发心室辅助泵的改进设计
Improved design of a self-developed ventricular assist pump
摘要
Abstract
A continuous-flow centrifugal ventricular assist pump(Q pump)was improved and de-signed,the accuracy of the numerical calculations was verified by hydraulic tests,and its performance was compared and analyzed with that of a market-leading product(C pump).Compared to the C pump,the design of the Q pump has been significantly improved.The Q pump effectively reduces vor-tex formation at the impeller outlet and optimizes the shear stress distribution.The maximum scalar shear stress of the Q pump is reduced from 91.5 Pa to 47.8 Pa,which is lower than that of the C pump.Blood test results reveal that the hemolytic index of the Q pump is 0.016,slightly higher than the C pump's value of 0.009.Additionally,the activation time of the Q pump is 11 s,longer than the C pump's 9 s,indicating that the Q pump possesses better anticoagulant properties.Furthermore,no thrombosis is observed in multiple tests with the Q pump.关键词
心室辅助泵/剪切应力/溶血指数/血栓Key words
ventricular assist pump/shear stress/hemolysis index/thrombus分类
建筑与水利引用本文复制引用
黄博,韩欢,陆斌,吴清玉,左志钢,刘树红..一款自主研发心室辅助泵的改进设计[J].排灌机械工程学报,2025,43(7):649-655,662,8.基金项目
北京市自然科学基金资助项目(M22025) （M22025）
中国博士后科学基金资助项目(2022M711766) （2022M711766）
