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Advance diagnosis of infusion device operating mode viability

  • US 9,636,453 B2
  • Filed: 12/04/2014
  • Issued: 05/02/2017
  • Est. Priority Date: 12/04/2014
  • Status: Active Grant
First Claim
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1. An infusion device comprising:

  • a user interface;

    a memory to maintain status information pertaining to the infusion device;

    a motor operable to deliver fluid to a body of a user, the fluid influencing a physiological condition of the user; and

    a control system coupled to the motor, the memory, and the user interface to;

    operate the motor in a first instance to deliver the fluid in accordance with a closed-loop operating mode to regulate the physiological condition of the user to a target value using one or more control parameters, the one or more control parameters comprising one or more proportional-integral-derivative (PID) gain coefficients;

    store operational information pertaining to the first instance of the closed-loop operating mode in the memory;

    determine an expected start time for a subsequent instance of the closed-loop operating mode based at least in part on the operational information;

    determine an expected duration for the subsequent instance of the closed-loop operating mode based at least in part on the operational information;

    determine a diagnosis time prior to the expected start time;

    at the diagnosis time prior to the expected start time, automatically determine viability of entering the subsequent instance of the closed-loop operating mode at the expected start time for the expected duration based at least in part on the status information by performing an algorithmic diagnostic check to determine availability of the closed-loop operating mode at the expected start time in the future for the subsequent instance of the closed-loop operating mode, wherein the algorithmic diagnostic check comprises determining whether the one or more control parameters can be calculated at the expected start time; and

    automatically provide, via the user interface, a notification indicative of a recommended action based at least in part on the viability.

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