blood pump 14 is located in the left ventricle 10 however in some circumstances it may be desirable to locate the blood pump 14 in the right ventricle 20 access to the right ventricle 20 may be provided through the pulmonary artery 22 in operation the intake end of the blood pump 14 shown in fig1 is located within the left ventricle 10 the outlet or discharge end of the blood pump 14 is located in the aorta 24 the blood pump 14 thus extends partially into the left ventricle 10 through the heart valve 26 blood is pumped through the blood pump 14 from the left ventricle 10 in the direction of the arrows 28 into the aorta 24 referring now to fig3 the pump 14 is shown in greater detail the pump 14 is driven by a flexible drive shaft 30 which extends through the catheter 16 the drive shaft 30 is driven by a motor 31 located outside the patient 39 s body as best shown in fig2 the pump 14 is secured to the distal end of the catheter 16 the pump 14 and catheter 16 are guided through the femoral artery to the left ventricle 10 when the left ventricle 10 is reached the pump 14 is positioned in the left ventricle 10 of the heart utilizing known insertion techniques the pump 14 is positioned so that the.