Devices, systems and methods for adjusting fluid delivery parameters

A non-transitory machine-readable medium comprising computer-executable instructions stored thereon, which when executed on a processor, perform the method of determining a parameter of a fluid delivery program for a fluid delivery system used by a user and controlling drug delivery by the fluid delivery system to the user, the method comprising:

• retrieving via using the processor, data from memory of the fluid delivery system, the data corresponding to one or more time windows;
• assessing via using the processor, a correction delivery for the one or more time windows based on the data;
• determining via using the processor, a new carbohydrate-to-insulin ratio (CIR) value for the one or more time windows if the correction delivery regularly follows a meal bolus;
• determining via using the processor, a new basal delivery profile for the one or more time windows if the correction delivery regularly precedes a meal bolus;
• and
• controlling via using the processor, a dispensing mechanism of the fluid delivery system according to the fluid deliver program updated with either the new carbohydrate-to-insulin ratio (CIR) value or the new basal delivery profile to deliver the therapeutic fluid into subcutaneous tissue of the user.

A method for determining a parameter of a fluid delivery program for a fluid delivery system used by a user, the fluid delivery system comprises:

• one or more processors,
• memory readable by the one or more processors and storing computer instruction for the fluid delivery program and data, and
• a dispensing unit having a dispensing mechanism connected to a cannula that penetrates skin to deliver a therapeutic fluid into subcutaneous tissue of the user, in which operation of the dispensing mechanism of the dispensing unit is controlled by the one or more processors according to the fluid deliver program, the method comprising:
• reading from the memory and executing the computer instructions by the one or more processors of the fluid delivery system
• retrieving, using the one or more processors, data from the memory, the data corresponding to one or more time windows;
• assessing, using the one or more processors, a correction delivery for the one or more time windows based on the data;
• determining, using the one or more processors, one or more revised drug delivery parameters based on the correction delivery, wherein a new carbohydrate-to-insulin ratio (CIR) value for the one or more time windows is determined by the one or more processors as one of the revised drug delivery parameters if the correction delivery regularly follows a meal bolus, and a new basal delivery profile for the one or more time windows is determined by the one or more processors as one of the revised drug delivery parameters if the correction delivery regularly precedes a meal bolus;
• and
• modifying present and/or future drug delivery to the user, via the dispensing mechanism of the dispensing unit, based on the determination upon the one or more revised drug delivery parameters if the one or more revised drug delivery parameters do not exceed one or more threshold values.