Patent ID: 7264606

Claim:
A circulatory support device to supplement the pumping function of the heart to thereby enable the surgeon to perform various surgical procedures thereon, which comprises: an extracorporeal portable axial flow pump including a pump housing dimensioned for positioning directly on or adjacent to the chest area of a patient for performing extracorporeal circulation, and having inlet and outlet ports in substantial axial alignment, a rotating member rotatably mounted in the pump housing to impart mechanical energy to blood entering the inlet port and to direct the blood through the outlet port during extracorporeal circulation, the rotating member includes a first conical end in proximity to the inlet port, a second conical end in proximity to the outlet port, and a cylindrical mid-portion connecting the first and second conical ends having at least one blade member extending there from, a length of the second conical end is greater than a length of the first conical end; an inlet tube connected to the inlet port of the pump housing and having an inlet open end portion dimensioned for insertion within the patient's heart whereby blood is drawn from the heart through a lumen of the inlet tube and directed into the pump housing; and an outlet tube connected to the outlet port of the pump housing and having an outlet end portion dimensioned for insertion within a major blood vessel associated with the heart whereby blood exiting the outlet port of the pump housing is conveyed through a lumen of the outlet tube into a major blood vessel for transfer by the arterial system of the patient.