MAGNETICALLY LEVITATED AND DRIVEN BLOOD PUMP AND METHOD FOR USING THE SAME

摘要

A device for pumping blood, includes a housing having a distal end adapted to be coupled to a catheter, a proximal end having an outlet, and a tubular body extending between the distal and proximal ends along an axis. A rotor is rotatably disposed within the housing. A first magnetic bearing is operative to levitate the rotor along the axis within the housing. A second magnetic bearing controls a rotational frequency of the rotor. A third magnetic bearing controls a radial position of the rotor.

主权项

1. A method of operating a rotor of a blood pump, comprising:
levitating the rotor within a tubular body along an axis of the blood pump using a first magnetic bearing; rotating the rotor about the axis within the tubular body using a second magnetic bearing; and maintaining a radial position of the rotor relative to the axis using a third magnetic bearing.