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动脉系统是一个生物管道网,几何条件非常复杂,我室采用集中参数方法,按照生理解剖条件,将动脉系统分为主动脉和中、小动脉两个空间,按照管内压力状态,建立两种压力坐标:(1)以舒张压力为y轴坐标零点,建立脉动压力坐标。(2)以大气压力零点为动脉系统的压力坐标,建立数学模型并推导一组动脉系统动力学参数式。通过一批动物实验,对以下一部份动脉系统动力学参数式进行检验。
The arterial system is a biological pipe network. The geometric conditions are very complex. Our room uses a lumped parameter method. According to the physiological and anatomical conditions, the arterial system is divided into two spaces: the aorta and the middle and small arteries. Two pressures are established according to the pressure state in the tube. Coordinates: (1) Set the systolic pressure coordinates with the diastolic pressure as the y-axis coordinate zero. (2) Using the zero pressure of the atmospheric pressure as the pressure coordinate of the arterial system, establish a mathematical model and derive a set of parameters of the arterial system dynamics. Through a series of animal experiments, the following part of the arterial system dynamic parameters were tested.