Lumped parameter model of the systemic circulation based on left ventricular motion

A new cardiovascular lumped parameter model based on left ventricular (LV) motion is proposed in this paper. Firstly, the LV motion model is established by analyzing LV contraction process, and the systemic circulation motion model is constructed combined with the two compartment model of aorta. On this basis, according to the dual relationship be-tween electric circuit components and movement components, the lumped parameter model of the systemic circulation is established. The simulation results show that the lumped parameter model established in this paper can simulate the actual cardiovascular movement in real time, and the output waveforms of Cardiac output (CO), pulse wave and other main variables are in good agreement with the actual waveforms. Since all circuit components in the model proposed in this paper can find their corresponding cardiovascular physical parameters, the proposed model will provide a certain theoretical help for further study of the mechanism of circulatory system, including CO, ejection fraction, blood pressure and so on.