Experiment and design improvement of an axial flow blood pump

ZHAN Zhao; ZHANG Yan; GUI Xing-min

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Experiment and design improvement of an axial flow blood pump

更新时间：2026-07-07

- Experiment and design improvement of an axial flow blood pump
- Vol. 23, Issue 6, (2008)
- 作者机构：
  
  1. 北京航空航天大学能源与动力工程学院,北京,100083
  2. 中国协和医科大学阜外医院心脏外科,北京,100037
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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ZHAN Zhao, ZHANG Yan, GUI Xing-min. Experiment and design improvement of an axial flow blood pump[J]. 2008, 23(6).
DOI：

ZHAN Zhao, ZHANG Yan, GUI Xing-min. Experiment and design improvement of an axial flow blood pump[J]. 2008, 23(6). DOI：

摘要

原型血液泵LAP-00的数值模拟及实验结果表明

在设计转速9000r/min下

最大效率点对应的设计点流量为11L/min

远大于临床所需38L/min的流量

致使血液泵在实际应用时效率偏低;而静子区域存在的流动分离与回流

极易造成血流停滞进而引发血栓.改进后的血液泵LAP-23

将设计转速从9000r/min降低至8000r/min

减小了转子叶尖切应力对血细胞的破坏;设计点流量降低至6L/min

并消除了静子区域内的分离和回流.

Abstract

The numerical investigation and experimental results of the proto-pump LAP-00 show that at design rotational speed of 9000 r/min

the flow rate corresponding to the highest efficiency point is 11 L/min

which is much higher than clinical use(38 L/min)

causing the pump to work at off design point in clinic use with a low efficiency.Besides

in the diffuser region

flow separation and recirculation may cause blood stagnation and thrombosis.The improved design for pump LAP-23 decreases the design rotational speed from 9000 r/min to 8000 r/min

thus reduces the high shear stress on blood cells at impeller tip;meanwhile

it decreases the design flow rate to 6 L/min and eliminates flow separation and recirculation in the diffuser region.

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Related Author

ZHANG Yan

LIU Yangwei

TANG Yumeng

XIE Nan

HU Jun

LIU Hua

TU Bao-feng

LI Xin-tian

Related Institution

Department of Cardiac Surgery,Fu Wai Hospital,Chinese Academy of Medical Sciences

Collaborative Innovation Center for Advanced Aero-Engine

National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics

School of Astronautics, Beijing University of Aeronautics and Astronautics

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