An adaptive control system of the ventricular assist device with the functions of measurement and analysis

: A personal computer based digital control system for driving the ventricular assist device (VAD) has been developed. Adaptive control, monitoring and analyzing functions are integrated into a software of the personal computer in this system. These functions can operate in parallel with one another because of the multi-interrupt processing used in the software. The system enables the operator to analyze the hemodynamic behavior of the circulatory system simultaneously with VAD pumping and to make on-line use of the result of the analysis in order to improve the driving condition of VAD.