Axial flow blood pump for variable-speed ventricle assistance

A blood pump inlet is formed in one end of a pump shell, and a blood pump outlet is formed in the side wall of the pump shell; an artificial valve is arranged in the pump shell; an inlet guide vane, an outlet guide vane, an impeller and an inlet guide vane are sequentially arranged in the pump shell. The inlet guide vane is arranged on the outlet side of the artificial valve; the inlet guide vane guides blood pumped from the blood pump inlet into the impeller in a laminar flow mode, and after the blood is rotationally pushed by the impeller, the blood is rectified by the outlet guide vane and pumped out through the blood pump outlet. The output end of the motor is connected with the shaft, the outlet guide vane is sleeved on the shaft, and the impeller is fixedly connected with the shaft. The motor can rotate at variable speed. The motor is controlled by the blood pump variable-speed controller to run at variable speed, and the heart rate is used as a feedback signal to realize synchronization with the beatin