Analysis and model of controlling system to control heart rate and stroke volumes of an artificial heart

A hybrid command system is described to control the action of an artificial heart. The command parameters are the venous oxygen saturation and atrial pressures for the control of heart rate at a simultaneous change of the ratio systole-diastole and stroke volumes of both halves of the artificial heart to achieve equilibrium in the cardiovascular system. This paper analyses haemodynamic ratios under physiologic conditions and states the controller transfer functions. The chosen controllers are tested on a model which employs an electronic analogue computer.