Pulsatile magnetic suspension axial flow blood pump

The utility model discloses a pulsating type magnetic suspension axial flow blood pump which comprises a pump shell, a front guide impeller connected with the pump shell through a front flow deflector and a rear guide impeller connected with the pump shell through a rear flow deflector, a rotor impeller is installed between the front guide impeller and the rear guide impeller, the rotor impeller is of a hollow structure, and a stator supporting shaft is arranged in the center of the rotor impeller. The stator supporting shaft penetrates through the rotor impeller to be connected to the front guide impeller and the rear guide impeller, a rotor permanent magnet is arranged on the inner wall of the rotor impeller, a stator winding is installed on the stator supporting shaft of the corresponding section of the rotor impeller, and spiral blades are arranged on the outer surface of the rotor impeller at intervals; the inner diameter of the pump shell is increased in a stepped mode from the blood inlet direction to