Dynamic control of subordinate pumps in a heart-lung-machine
AssigneeLivaNova Deutschland GmbH
InventorsOttmar Penka, Friedemann Schubert
Life of this patent
Estimating the term…
Abstract
Methods and systems for controlling one or more pumps of a heart-lung-machine. An illustrative method may comprise receiving an actual flow rate of a pump, determining the actual flow rate is from a primary pump, determining an available amount of the actual flow rate of the primary pump that is available to one or more subordinate pumps, comparing the available amount of the actual flow rate of the primary pump to a sum of set flow rates of the one or more subordinate pumps, and operating the one or more subordinate pumps in a proactive control mode or a reactive control mode.
Claims20
A method of controlling one or more subordinate pumps of a heart-lung machine dynamically using one or more controllers, the method comprising:
- receiving, at the one or more controllers, a primary pump flow rate value corresponding to an actual flow rate outputted by a primary pump of the heart-lung machine;
- determining, by the one or more controllers, an available amount of the actual flow rate outputted by the primary pump available to the one or more subordinate pumps;
- comparing, using the one or more controllers, the available amount to a combined subordinate flow of the one or more subordinate pumps;
- and
- operating the one or more subordinate pumps dynamically using the one or more controllers based on the comparing, wherein the operating comprises operating in a reactive control mode when the combined subordinate flow exceeds the available amount, and wherein the operating comprises operating in a proactive control mode when the combined subordinate flow is less than the available amount.
A method of controlling one or more subordinate pumps of a heart-lung machine dynamically using one or more controllers, the method comprising:
- receiving, at the one or more controllers, a primary pump flow rate value corresponding to an actual flow rate outputted by a primary pump of the heart-lung machine;
- determining, by the one or more controllers, an available amount of the actual flow rate outputted by the primary pump available to the one or more subordinate pumps;
- comparing, using the one or more controllers, the available amount to a combined subordinate flow of the one or more subordinate pumps;
- and
- operating the one or more subordinate pumps dynamically using the one or more controllers based on the comparing, wherein the operating comprises synchronizing operation of the one or more subordinate pumps in response to receiving an updated primary pump flow rate.
A method of controlling one or more subordinate pumps of a heart-lung machine dynamically using one or more controllers, the method comprising:
- receiving, at the one or more controllers, a primary pump flow rate value corresponding to an actual flow rate outputted by a primary pump of the heart-lung machine;
- determining, by the one or more controllers, an available amount of the actual flow rate outputted by the primary pump available to the one or more subordinate pumps;
- comparing, using the one or more controllers, the available amount to a combined subordinate flow of the one or more subordinate pumps;
- and
- operating the one or more subordinate pumps dynamically using the one or more controllers based on the comparing, wherein the operating comprises automatically increasing operation of the primary pump in response to an increase in operation of at least one subordinate pump.
Dependencies are inferred from the claim text.