Abstract: Implantable blood pumps and related methods employ a compact rotary motor. A method of assisting blood circulation in a patient includes drawing a flow of blood from a patient's heart through an inlet opening into a blood flow channel of a ventricular assist device via rotation of a rotor comprising impeller blades. Output of rotor position sensors is processed to determine a rotational orientation of the rotor and a position of the rotor within the ventricular assist device. Delivery of electrical currents to stator coils is controlled to control a radial position of the rotor within the ventricular assist device and to drive the rotation of the rotor. The flow of blood is output through an outlet opening of the ventricular assist device to an artery of the patient.

Abstract: Implantable blood pumps and related methods employ a compact rotary motor. The compact rotary motor includes a stator and a rotor. The stator is disposed within a housing circumferentially about a dividing wall such that a blood flow conduit extends through the stator. The stator is disposed circumferentially around at least a portion of the rotor.

Abstract: Implantable blood pumps and related methods employ a compact rotary motor. The compact rotary motor includes a stator and a rotor. The stator is disposed within a housing circumferentially about a dividing wall such that a blood flow conduit extends through the stator. The stator is disposed circumferentially around at least a portion of the rotor.

Abstract: Implantable blood pumps and related methods employ a compact rotary motor. The compact rotary motor includes a stator and a rotor. The stator includes a stator core and stator coils. The stator core includes a toroidal portion. Each of the stator coils extends around a respective segment of the toroidal portion. The stator being disposed within the housing circumferentially about the dividing wall such that the blood flow conduit extends through the stator core. The stator core is disposed circumferentially around at least a portion of the rotor.

Abstract: Implantable blood pumps and related methods employ a compact rotary motor. The compact rotary motor includes a stator and a rotor. The stator includes a stator core and stator coils. The stator core includes a toroidal portion. Each of the stator coils extends around a respective segment of the toroidal portion. The stator being disposed within the housing circumferentially about the dividing wall such that the blood flow conduit extends through the stator core. The stator core is disposed circumferentially around at least a portion of the rotor.