CPC A61M 60/422 (2021.01) [A61M 60/178 (2021.01); A61M 60/216 (2021.01); A61M 60/523 (2021.01); A61M 60/546 (2021.01); A61M 60/148 (2021.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/8212 (2013.01)] | 20 Claims |
1. A method of operating a blood pump system, the method comprising:
energizing an implanted blood flow sensor at a first time for a first period;
measuring with the implanted blood flow sensor a flow rate of blood-pumped during the first period;
deenergizing the implanted blood flow sensor at the end of the first period;
determining an amount of power consumed by a blood pump motor during the first period;
determining a blood pump motor speed during the first period;
deriving a flow rate of blood through the blood pump during the first period as a function of the power consumed, and blood pump motor speed; and
delaying measuring a flow rate at a second time based on the magnitude of a difference between the measured blood flow rate during the first period and the derived blood flow rate during the first period.
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