Implantable blood pump
AssigneeTc1 LLC
InventorKevin Bourque
Life of this patent
Estimating the term…
Abstract
A method for assisting blood circulation in a patient includes drawing a flow of blood from a patient's heart into a blood flow channel formed by a housing. The flow of blood is passed through a motor stator to a rotor disposed within the blood flow channel. The motor stator is arranged circumferentially around the blood flow channel. The rotor has permanent magnetic poles for magnetic levitation and rotation of the rotor. The motor stator is controlled to act as a radial bearing for magnetic levitation of the rotor and to rotate the rotor within the blood flow channel. The rotor is levitated within the blood flow channel in the direction of the rotor axis of rotation via passive magnetic interaction between the rotor and the motor stator. The flow of blood is output from the blood flow channel to the patient.
Claims10
A method for assisting blood circulation in a patient, the method comprising:
- drawing a flow of blood from a patient's heart into a blood flow channel formed by a housing;
- passing the flow of blood through a motor stator to a rotor disposed within the blood flow channel, the motor stator being arranged circumferentially around the blood flow channel, the rotor having permanent magnetic poles for magnetic levitation and rotation of the rotor;
- controlling delivery of current to the motor stator to control a radial position of the rotor within the blood flow channel and to control rotation of the rotor within the blood flow channel, the rotor being rotated around a rotor axis of rotation;
- levitating the rotor within the blood flow channel in the direction of the rotor axis of rotation via a passive magnetic interaction between the rotor and the motor stator;
- and
- outputting the flow of blood from the blood flow channel to the patient.
A method for assisting blood circulation in a patient, the method comprising:
- drawing a flow of blood from a patient's heart into a blood flow channel formed by a housing;
- passing the flow of blood through a motor stator to a rotor disposed within the blood flow channel, the motor stator being arranged circumferentially around the blood flow channel, the rotor having permanent magnetic poles for magnetic levitation and rotation of the rotor;
- controlling the motor stator to act as a radial bearing for magnetic levitation of the rotor and to rotate the rotor within the blood flow channel,
- levitating the rotor within the blood flow channel in the direction of the rotor axis of rotation via passive magnetic interaction between the rotor and the motor stator;
- and
- outputting the flow of blood from the blood flow channel to the patient.
Dependencies are inferred from the claim text.