Abstract: An insulin management method implemented by an insulin delivery device is provided. The method includes detecting a starting activity associated with preparation of use of the insulin delivery device in the form of an automatic insulin delivery device attachable to a user's body for a duration of a fasting period within an overall time period. The method includes initiating automated delivery of insulin in the form correction bolus doses in response to periodically received blood glucose measurements during the fasting period. Other methods, devices and systems are also provided.

Abstract: An insulin management method is provided. The method includes providing an insulin delivery device, wherein the insulin delivery device is in the form of an automatic insulin delivery device attachable to a user's body for the duration of a fasting period. The method includes delivering insulin from the insulin delivery device during the fasting period within an overall time period in the form of correction bolus doses of insulin in response to received blood glucose measurements. The insulin delivery device refrains from administering basal insulin at a preset or default rate or in a preset or default pattern. Insulin is received by the user from a non-fasting insulin management modality during a non-fasting period within the overall time period and the non-fasting insulin management modality provides at least one of a basal dose of insulin and bolus doses of insulin. Other methods, devices and systems are also provided.

Abstract: According to some embodiments, an insulin management method implemented by an insulin delivery system is provided. The method includes determining an assumed insulin on board based on an assumed external dose calculated to correct an initial blood glucose value of the user to a target blood glucose. The method includes delivering insulin from an insulin delivery device with the insulin in the form of a plurality of correction bolus doses during a fasting period in response to received blood glucose measurements, the correction bolus doses compensated for by a determined insulin on board, wherein for at least a first correction bolus dose of the plurality of correction bolus doses the determined insulin on board equals the assumed insulin on board. Other systems, devices and methods are also provided.

Abstract: A medication fluid delivery device and methods are provided with the delivery device having a dispensing unit and a drive unit that are attachable together. The dispensing unit includes a dispenser for delivering medication fluid to a user and a reservoir configured to be filled with a variable amount of medication fluid received from a medication fluid injector. The drive unit includes a control unit that controls the drive unit and causes medication fluid in the reservoir to be pumped through the dispenser and includes a registration mechanism configured to act with the dispensing unit to determine a state the reservoir including an initial level of the filled reservoir.