摘要
针对全人工心脏的测试需要,提出了一种新的基于弹性腔模型的人体血液循环系统整体特性集中参数模型。该模型有以下一些特点:将血液循环系统作为一个闭合体系,强调其内部各器官间的相互作用以及循环系统与外部作用的整体性反应,在各组成部分的特性描述上则进行较多的简化;参数少、生理意义明确、计算容易且便于制作物理模型;该模型直接对血液流路器件进行模拟,更能逼近测试系统实物的真实情况。使用本系统对配套的全人工心脏进行的测试实验表明,建模结果与实物系统的测试结果基本相符。
For the use in test of total artificial heart （TAH） system, a new elastic chamber theory based model is proposed and the model is an overall characteristic with the lumped parameter model of the human blood circulatory system. The model has the following features： The blood circulatory system is treated as an independent system in the model; the interaction between the internal organs and the overall responses of circulatory system is emphasized. The descriptions of the characteristics of the various components are simplified so that fewer parameters and less calculation are required to develop the physical model with more explicit physiologic significance. A better approximation of the true physical testing system is realized since the new model simulates the paths of blood flow directly. As a result, the experiments have proved that the mathematic modeling results are corresponding with the test results.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第10期119-125,129,共8页
Journal of Chongqing University
基金
国家863计划资助项目(2006AA04Z343)
国家自然科学基金资助项目(30500120)
重庆市科委科技攻关项目(csts.201ac3031)
重庆市科委重点项目(CSTC2006BA5005)
关键词
全人工心脏测试系统
流路数学模型
弹性腔模型
total artificial heart test system
flow path mathematical model
elastic chamber model
