[1]刘晨,张惟斌,衡亚光,等.人工心脏圆盘泵的流动特性研究[J].中国医学物理学杂志,2023,40(4):496-502.[doi:DOI:10.3969/j.issn.1005-202X.2023.04.016]
　LIU Chen,ZHANG Weibin,et al.Flow characteristics of disc pump used as artificial heart[J].Chinese Journal of Medical Physics,2023,40(4):496-502.[doi:DOI:10.3969/j.issn.1005-202X.2023.04.016]
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人工心脏圆盘泵的流动特性研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
40卷
期数:
2023年第4期
页码:
496-502
栏目:
生物材料与力学
出版日期:
2023-04-25

文章信息/Info

Title:
Flow characteristics of disc pump used as artificial heart
文章编号:
1005-202X（2023）04-0496-07
作者:
刘晨1; 2; 张惟斌1; 2; 衡亚光1; 2; 江启峰1; 2; 申坤1; 2; 崔清清1; 2
1.西华大学能源与动力工程学院， 四川 成都 610039； 2.西华大学流体及动力机械教育部重点实验室， 四川 成都 610039
Author(s):
LIU Chen1;  2;  ZHANG Weibin1;  2;  HENG Yaguang1;  2;  JIANG Qifeng1;  2;  SHEN Kun1;  2;  CUI Qingqing1;  2
1. School of Energy and Power Engineering, Xihua University, Chengdu 610039, China 2. Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
关键词:
人工心脏; 溶血; 计算流体力学; 圆盘泵
Keywords:
Keywords: artificial heart hemolysis computational fluid dynamics disc pump
分类号:
R318；TH3
DOI:
DOI:10.3969/j.issn.1005-202X.2023.04.016
文献标志码:
A
摘要:
人工心脏（血泵）一直存在泵体对血细胞剪切力过大和流速过快容易引起溶血的问题。为了研究人体正常血压情况下，血泵内部剪切力和速度场的分布情况，选择圆盘泵叶轮代替传统离心泵叶轮，对两种模型进行数值计算，分析不同叶轮内部剪切力和速度场的分布规律。研究表明传统离心泵内部流速高，叶片表面剪切力大，对血细胞的伤害大。圆盘泵相比传统离心泵，剪切力更小，流场速度分布均匀，流速更小。和传统离心泵相比，不同转速下圆盘泵能降低溶血的发生率。圆盘泵叶片数为6片时，抗溶血性能更好。研究结果为血泵的优化提供理论依据。 【关键词】人工心脏；溶血；计算流体力学；圆盘泵
Abstract:
Abstract: The hemolysis caused by the excessive shear force of the pump body on the blood cells and high velocity of flow has been a problem in artificial heart (blood pump). The disc pump impeller is selected to replace the traditional centrifugal pump impeller, and the two models are numerically calculated to analyze the internal shear force and velocity field of different impellers under normal human blood pressure. The results show that the traditional centrifugal pump has high internal velocity and larger shear force on blade surface, resulting in great damages to blood cells, while the disc pump has less shear force, uniform velocity distribution, and smaller velocity. Therefore, the disk pump instead of the traditional centrifugal pump can reduce the occurrence of hemolysis at different rotational speeds. When the number of blades is 6, the disc pump exhibits better performance on anti-hemolysis. The study provides a theoretical basis for the optimization of blood pump.

相似文献/References:

[1]张伟国,程云章,胡 平,等.离心血泵内部流场数字模拟及溶血分析[J].中国医学物理学杂志,2014,31(02):4814.[doi:10.3969/j.issn.1005-202X.2014.02.022]
[2]张金丽,程云章,郑淇文.连续型血泵溶血性能评价方法分析[J].中国医学物理学杂志,2018,35(9):1087.[doi:10.3969/j.issn.1005-202X.2018.09.017]
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[3]唐洁,程云章,郑淇文,等.介入式微型轴流血泵溶血机理及影响因素分析[J].中国医学物理学杂志,2020,37(3):368.[doi:DOI:10.3969/j.issn.1005-202X.2020.03.021]
　TANG Jie,CHENG Yunzhang,ZHENG Qiwen,et al.Mechanism of hemolysis in an interventional micro-axial flow blood pump and analysis of its influencing factors[J].Chinese Journal of Medical Physics,2020,37(4):368.[doi:DOI:10.3969/j.issn.1005-202X.2020.03.021]
[4]熊驰,汤晓燕,云忠,等.流道型轴流血泵流体仿真与水力实验分析[J].中国医学物理学杂志,2021,38(10):1308.[doi:DOI:10.3969/j.issn.1005-202X.2021.10.023]
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备注/Memo

备注/Memo:
【收稿日期】2022-12-26 【基金项目】四川省科技厅资助项目（2020YFH152）；四川省教育厅资助项目（18ZB0563）；四川省科技计划（2022YFH0017） 【作者简介】刘晨，研究方向：特种流体机械设计及内部流动研究，流体及动力机械结构计算及转子动力学、流动波动及流体机械过渡过程分析，E-mail: 1353233768@qq.com 【通信作者】江启峰，研究方向：流体机械的设计、空化空蚀与泥沙磨损的试验和数值研究、材料冲刷磨损，E-mail: qifeng.jiang@mail.xhu.edu.cn
更新日期/Last Update: 2023-04-25