Patent ID: 11883642
Assignee: RELIANTHEART, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A method of controlling operation of a blood pump system, wherein the system comprises an implanted motorized blood pump, an implanted blood flow sensor, a power source, and a controller, the method comprising:
deriving a differential pressure across the blood pump at a first time from power consumed by a blood pump motor and speed of the blood pump;
deriving a blood flow rate at the first time from the power consumed by the blood pump motor, speed of the blood pump, and the derived differential pressure across the blood pump;
determining a blood flow rate through the blood pump at the first time from data from the implanted blood flow sensor;
deenergizing the implanted blood flow sensor;
determining a period that the implanted blood flow sensor will remain deenergized based on a comparison of the derived blood flow rate and the determined blood flow rate;
re-energizing the implanted blood flow sensor at the end of the period to determine a blood flow rate at a second time; and
controlling operation of the blood pump motor during the deenergized period based on the derived blood flow rate.