Synchronization of a measurement to an external signal
AssigneesABIOMED, Inc., Abiomed Europe GmbH
InventorsClaude Belleville, Andrew Gentile, Johannes Visser
Life of this patent
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Abstract
Methods and apparatus for performing a pressure measurement associated with a heart pump are described. The method includes controlling a light source of an optical pressure sensor to generate one or more light pulses in synchronization with a signal received from pump drive circuitry associated with the heart pump, capturing an image based on an optical signal generated based, at least in part, on the one or more light pulses, and determining a pressure based, at least in part, on the image.
Claims20
A method of performing a pressure measurement associated with a heart pump, the method comprising:
- controlling a light source of an optical pressure sensor to generate one or more light pulses in synchronization with a signal received from pump drive circuitry associated with the heart pump;
- capturing an image based on an optical signal generated based, at least in part, on the one or more light pulses;
- and
- determining a pressure based, at least in part, on the image.
A mechanical circulatory support system comprising:
- a heart pump including an impeller and at least one optical pressure sensor;
- pump drive circuitry configured to drive rotation of the impeller;
- and
- a controller configured to:
- generate a synchronization signal based, at least in part, on a signal received from the pump drive circuitry;
- control operation of one or more light sources to output one or more light pulses to the at least one optical pressure sensor;
- capture an image based on an optical signal generated by the at least one optical pressure sensor in response to the at least one optical pressure sensor receiving the one or more light pulses;
- and
- determine a pressure based, at least in part, on the image.
A controller for a mechanical circulatory support system, the controller comprising:
- at least one hardware processor programmed with instructions that, when executed, perform a process comprising:
- generating a synchronization signal based, at least in part, on a pump drive signal;
- controlling operation of one or more light sources to output one or more light pulses to at least one optical sensor;
- capturing an image based on an optical signal generated by the at least one optical sensor in response to the at least one optical sensor receiving the one or more light pulses;
- and
- determining a pressure based, at least in part, on the image.
Dependencies are inferred from the claim text.