叶轮式辅助心脏泵装置优化设计

杨晓琛; 张岩; 桂幸民

叶轮式辅助心脏泵装置优化设计

杨晓琛^1,2,
张岩²,
桂幸民^1,2

1.
北京航空航天大学能源与动力工程学院航空发动机数值仿真研究中心,北京 100191
2.
阜外心血管病医院心血管外科,北京 100037

基金项目: 国家自然科学基金(50676004,50736007)

计量
- 文章访问数: 1625
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- 被引次数: 0
出版历程
- 收稿日期: 2010-05-25
- 修回日期: 2010-09-26
- 刊出日期: 2011-06-28

Optimization and design of an impeller assist heart pump device

1.
Aeroengine Numerical Simulation Research Center,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
2.
Department of Cardiovascular Surgery,Fuwai Hospital,Beijing 100037,China

摘要

摘要: 叶轮式血液泵LAP-Ⅰ采用了航空叶轮机械中使用的设计思想方法,该装置是针对亚洲患者的临床应用而设计.综合航空叶轮机械技术和医学需求,采用整体转子和悬臂静子结构设计,并对其串列叶栅静子结构做了进一步的优化改进,得到叶轮式血液泵LAP-Ⅱ.计算流体动力学(CFD)模拟结果表明,血泵LAP-Ⅱ的压升性能达到医学需求,泵体内流动状况顺畅.最大比较剪切应力(S)值得到明显降低,流线显示血液通过泵体的最长时间得到减小,抗溶血应用性能得到提高.
- 叶轮式辅助心脏动力装置 /
- 航空叶轮机械 /
- 计算流体动力学 /
- 整体转子 /
- 悬臂静子 /
- 抗溶血应用性能
Abstract: Design ideas and techniques applied in aeronautical turbomachinery were used to develop the impeller blood pump LAP-Ⅰ,which was designed for clinical use for Asian patients.By combining aeronautical turbomachinery technique with medical need,an integrated rotor and a cantilever stator were applied in the structure design,a further improvement was made in the tandem cascades stator and the impeller blood pump LAP-Ⅱ was obtained.The simulation results of computational fluid dynamics show that,the pressure rise characteristic of blood pump LAP-Ⅱ meets the medical requirement,and the flow status in the pump is fluent.The maximal comparative shear stress (S) value is reduced evidently;and the streamlines show that the longest time required for blood to travel through the pump is decreased,thus the property of anti-hemolytic application is improved.
- impeller assist heart power device /
- aeronautical turbomachinery /

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参考文献(14)

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