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Distributed-type cardiovascular system simulation model

A system simulation and cardiovascular technology, applied in the field of physiological signal simulation, can solve the problems of not being able to understand the interaction relationship more deeply and not reflecting the different effects of the cardiovascular system.

Inactive Publication Date: 2015-07-22
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

Therefore, it cannot reflect the different effects of different stress on the cardiovascular system, nor can it provide a deeper understanding of the interaction relationship between the various components

Method used

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  • Distributed-type cardiovascular system simulation model

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Embodiment Construction

[0024] A distributed cardiovascular system simulation model, including a four-chamber heart sub-model, a pulmonary circulation sub-model, a blood vessel network sub-model, a reflex control sub-model, and a vein collapse sub-model.

[0025] The four-chamber sub-model of the heart consists of two parts: the left ventricle connected to the left atrium and the right ventricle connected to the right atrium, which drive the systemic circulation and pulmonary circulation respectively. Since the left and right hearts are similar in structure and function, in the model, two equivalent networks with the same structure but different parameters were used. The time-varying elastic model proposed by Suga and Sagawa is used to simulate. Taking the left ventricle as an example, the relationship between ventricular pressure-volume change with time can be calculated by a time-varying elastic coefficient E lv (t) to describe. At a certain moment in the cardiac cycle, the left ventricular press...

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Abstract

The invention discloses a distributed-type cardiovascular system simulation model. The distributed-type cardiovascular system simulation model is characterized by comprising a cardiac four-cavity sub-model, a pulmonary circulation sub-model, a blood vessel network sub-model, a reflection control sub-model and a vein collapse sub-model, the cardiac cavity sub-model is provided with a left ventricle connected with a left atrium and a right ventricle connected with a right atrium, the left ventricle and the right ventricle drive systemic circulation and pulmonary circulation, the blood vessel network sub-model comprises an arterial system, a peripheral circulation system and a venous system which are connected sequentially, an input end of the arterial system is connected with an output end of the left ventricle, an output end of the venous system is connected with an input end of the right ventricle, the vein collapse sub-model is connected with another input end of the venous system, an output end of the arterial system is connected with the reflection control sub-model through a carotid artery, and the reflection control sub-model controls blood pressure fluctuation of a model system through heart rate and heart contractility effectors arranged on the cardiac four-cavity model and arterial resistance, venous volume and vascular tone effectors arranged in the blood vessel network model.

Description

technical field [0001] The invention relates to a physiological signal simulation technology, in particular to a non-linear and distributed human cardiovascular system simulation model. Background technique [0002] The so-called system modeling and simulation technology is to construct a model that has a certain similarity with the real system for research and analysis, and conduct various simulation experiments on the model. Its purpose is to study the characteristics of a real system by studying the method of the system model. At present, this method has been applied in many fields, and has shown many advantages that other experimental methods cannot match. Its characteristics are: it can predict the response of the system without being limited by time and space; it can realize simulation research under extreme conditions to consider the possible response of the system under various conditions; it can systematically analyze and integrate numerous experimental and observa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 刘洋卢虹冰冯娜廖琪梅张曦濮黄生张国鹏
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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