Study on method for measuring the regurgitant volume of cardiac valve prostheses under unsteady-flow condition

	Study on method for measuring the regurgitant volume of cardiac valve prostheses under unsteady-flow condition
	Wei, Liejiang 1; Li, Shaonian1 ; Wei, Zhongying 2; Ji, Hong1
	2008-03-01
发表期刊	Journal of Information and Computational Science
ISSN	15487741
卷号	5 期号:2 页码:513-520
摘要	This paper presented a new method for measuring regurgitant volume of Cardiac valve prostheses, that used unsteady flow instead of steady flow, deducted the elevation condition for application (ECA) of the method, established nonlinear differential equations of unsteady flow by Lagrange integral, studied it by numerical analysis, and analyzed the measurement error. The experimental results showed that the measuring precision is about 2.27%, if the ECA is satisfied and the ratio of cross sectional areas of valve and test tube is smaller than 3.422%.
关键词	Differential equations Errors Nonlinear equations Numerical methods Prosthetics Cardiac valve prosthesis Cross sectional area Flow condition Lagrange Measuring precision Nonlinear differential equation Regurgitant volume Test tube
收录类别	EI
语种	英语
出版者	Sun Yat-sen (Zhongshan) University
EI入藏号	20084711727770
EI主题词	Unsteady flow
EI分类号	462.4 Prosthetics - 631.1 Fluid Flow, General - 921.2 Calculus - 921.6 Numerical Methods
来源库	Compendex
分类代码	462.4 Prosthetics - 631.1 Fluid Flow, General - 921.2 Calculus - 921.6 Numerical Methods
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111970
专题	能源与动力工程学院科学技术处（军民融合领导小组办公室）
作者单位	1.College of Fluid Power and Control, Lanzhou University of Technology, Lanzhou 730050, China; 2.Company of Medical Instrument, Lanzhou Flight and Control Instruments General Plant, Lanzhou 730070, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Wei, Liejiang,Li, Shaonian,Wei, Zhongying,et al. Study on method for measuring the regurgitant volume of cardiac valve prostheses under unsteady-flow condition[J]. Journal of Information and Computational Science,2008,5(2):513-520.
APA	Wei, Liejiang,Li, Shaonian,Wei, Zhongying,&Ji, Hong.(2008).Study on method for measuring the regurgitant volume of cardiac valve prostheses under unsteady-flow condition.Journal of Information and Computational Science,5(2),513-520.
MLA	Wei, Liejiang,et al."Study on method for measuring the regurgitant volume of cardiac valve prostheses under unsteady-flow condition".Journal of Information and Computational Science 5.2(2008):513-520.