| 基于溶血性能的离心式旋转血泵设计 |
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| 引用本文： | 阮晓东,陈松松,钱伟,邹俊,付新.基于溶血性能的离心式旋转血泵设计[J].中国生物医学工程学报,2011,30(3). |
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| 作者姓名： | 阮晓东 陈松松 钱伟 邹俊 付新 |
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| 作者单位： | 1. 浙江大学流体传动及控制国家重点实验室,杭州,310027
2. 浙江省人民医院心胸外科,杭州,310000 |
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| 基金项目： | 国家高技术研究发展(863)计划，中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 溶血性能是衡量血泵性能的一个重要指标.基于平均剪切应力模型,通过减少红细胞流经叶轮的时间和降低它在此过程中所受平均剪切应力的方法,对离心血泵进行设计,进而改善溶血性能.采用商用流体仿真软件Fluent,对血泵内的三维不可压湍流流场进行数值模拟,得到红细胞在血泵内的流动迹线和流动参数;应用溶血估算公式,分析不同流量下血泵的溶血性能,计算得到溶血估算值在0.006-0.015之间,有较好的溶血性能,满足血泵对溶血性能的要求.
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| 关 键 词： | 离心式旋转血泵 溶血估算 计算流体力学 |
Design of Centrifugal Blood Pump Based on Hemolysis Estimation |
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| RUAN Xiao-Dong,CHEN Song-Song,QIAN Wei-Wen,ZOU Jun,FU Xin.Design of Centrifugal Blood Pump Based on Hemolysis Estimation[J].Chinese Journal of Biomedical Engineering,2011,30(3). |
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| Authors: | RUAN Xiao-Dong CHEN Song-Song QIAN Wei-Wen ZOU Jun FU Xin |
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| Institution: | RUAN Xiao-Dong1 CHEN Song-Song1 QIAN Wei-Wen2 ZOU Jun1 FU Xin1 1(State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China) 2(Department of Cardiothoracic Surgery,Zhejiang Provincial People's Hospital,Hangzhou 31000,China) |
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| Abstract: | Hemolytic performance is an important index of blood pump.Based on average shear stress model,we optimized the parameters of the impeller to reduce the time of red blood cells flowing through the impeller and the average shear stress they suffered in the process.Computational fluid dynamic simulations of the flow in the centrifugal blood pump were used in the present study.The traces and flow parameters of red cells in the blood pump were acquired.With the help of empirical formulas of hemolysis,hemolytic p... |
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| Keywords: | centrifugal blood pump hemolysis estimation computational fluid dynamics(CFD) |
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