Patent ID: 6176848
Filing Date: 2001-01-23
Classification: A61M,F04D

Abstract:
An intravascular blood pump connected to a catheter, comprising:a motor housing having an electric motor with an output shaft disposed therein, said motor housing having an end wall;a tubular pump housing coaxially arranged with said motor housing and axially spaced therefrom, said tubular pump housing having a diameter substantially the same as said motor housing;a suction opening formed on the end of said tubular pump housing facing away from said motor housing;an impeller rotationally disposed in said tubular pump housing;a magnetic coupling for transferring rotation of said output shaft to said impeller through said end wall;a step bearing arranged externally to said motor housing for axially supporting said impeller; andan orientation means for maintaining said impeller in a coaxial orientation with the axis of said pump housing.