In order to actualize an implantable use, a linear pulse motor-driven artificial heart, LAH-S91, with left and right blood pumps was studied continuously by the authors. Small size and high thrust actuators are required in the development of the LAH, and the evaluation method of a trial actuator is a problem one should not ignore. This paper deals with the results of performance test on LAH-S91 as follows: 1) Driving characteristics of the LAH-S91 are calculated using cardiovascular simulation. The thrust of LAH-S91 is insufficient for the life of a human being; it must be increased more than 10%. 2) The calculated value of the cardiovascular simulation approximately agrees with the experimental value of a mock circulatory system. 3) The maximum permissible loss of the LAH is defined by considering the cooling effect of the blood flow. The loss is 42 Watts, when the temperature rise is 1°C. The temperature rise is the subject for a future study.
