Abstract: A multi-use drug delivery device for extended use, wherein the multi-use drug delivery device comprising a multi-use main portion (310) and a single-use flow conducting device (360) adapted for conducting drug to the subcutaneous tissue of a subject, wherein the change from a connected configuration to an unconnected configuration of the main portion and the flow conducting device is through the intermediate configuration. The intermediate configuration comprises an equalizing channel defining an equalizing flow path (304) different from an unintended flow path (303).

Abstract: Systems and methods are provided for optimizing short acting insulin medicament dosage timing relative to a meal event for a subject. Glucose measurements of the subject over a time course and the timing of the measurements are obtained. Meal events in the time course and information regarding when dosages were injected into the subject relative to the meal events is obtained. Bins, each for a different time range for when a dosage is injected relative to a meal event, are constructed. Each bin is assigned glucose measurements in one or more periods within the time course in which the subject injected the dosage within the time range associated with the bin. A glycaemic risk measure is determined for each bin with the assigned measurements and used to identify an optimal relative time range for the subject. This is communicated to a health care practitioner or to the subject.

Abstract: Systems and methods are provided for adjusting a basal/bolus ratio in a standing insulin regimen for a subject that comprises daily amounts of basal and bolus insulin medicaments that define an initial basal/bolus ratio. A data set comprising glucose measurements of the subject with a respective timestamp for each such measurement over a time course is obtained. One or more fasting events are identified in the time course. A temporal glucose gradient is computed for each fasting event using the glucose measurements in the data set within the fasting event time period. Fasting event glucose gradients are used to determine whether to recommend adjustment to the basal/bolus ratio for the subject without change to the daily total insulin medicament. The recommended adjustment to the basal/bolus ratio is communicated when the determination is made to make the recommended adjustment to the basal/bolus ratio for the subject.

Abstract: An assembly includes a sealed drug reservoir unit, a subcutaneous flow conducting device in the form of a needle unit or an infusion set, and a flow communication unit. The flow communication unit includes a proximal hollow needle adapted to penetrate a needle-penetrable septum of the reservoir, a first flow-way inflow communication with the proximal needle and comprising a pressure-controlled valve, a second flow-way in flow communication with the first flow-way, an amount of preservative arranged to react with a substance received by the second flow-way, and distal flow communication structure adapted to provide flow communication between the second flow-way and the needle unit. The valve is controlled to open when the reservoir is pressurized, the preservative being provided to react with substances introduced to the second flow way via the needle unit.

Abstract: Systems and methods are provided for optimizing basal administration timing in a standing basal insulin regimen of a subject. The regimen specifies a total amount of basal insulin medicament, one or more basal injection event types for a recurring period, and an apportionment of the total amount of medicament between the injection event types. Time stamped glucose measurements of the subject are obtained over a past time course comprising a plurality of instances of the recurring period. When the glucose measurements satisfy a stop condition, a recommended adjustment is determined that comprises a change in the number of injection event types in the regimen and/or a change in the apportionment of insulin medicament between injection event types. The recommended adjustment is communicated to the subject for manual adjustment of the regimen, an insulin pen charged with delivering the regimen to the subject, or a health care practitioner associated with the subject.

Abstract: Systems and methods are provided for optimizing basal administration timing in a standing basal insulin regimen of a subject. The regimen specifies a total amount of basal insulin medicament, one or more basal injection event types for a recurring period, and an apportionment of the total amount of medicament between the injection event types. Time stamped glucose measurements of the subject are obtained over a past time course comprising a plurality of instances of the recurring period. When the glucose measurements satisfy a stop condition, a recommended adjustment is determined that comprises a change in the number of injection event types in the regimen and/or a change in the apportionment of insulin medicament between injection event types. The recommended adjustment is communicated to the subject for manual adjustment of the regimen, an insulin pen charged with delivering the regimen to the subject, or a health care practitioner associated with the subject.

Abstract: A multi-use drug delivery device for extended use, wherein the multi-use drug delivery device comprising a multi-use main portion (310) and a single-use flow conducting device (360) adapted for conducting drug to the subcutaneous tissue of a subject, wherein the change from a connected configuration to an unconnected configuration of the main portion and the flow conducting device is through the intermediate configuration. The intermediate configuration comprises an equalizing channel defining an equalizing flow path (304) different from an unintended flow path (303).

Abstract: An assembly comprises a sealed drug reservoir unit, a subcutaneous flow conducting device in the form of a needle unit or an infusion set, and a flow communication unit. The flow communication unit comprises a proximal hollow needle adapted to penetrate a needle-penetrable septum of the reservoir, a first flow-way inflow communication with the proximal needle and comprising a pressure-controlled valve, a second flow-way in flow communication with the first flow-way, an amount of preservative arranged to react with a substance received by the second flow-way, and distal flow communication means adapted to provide flow communication between the second flow-way and the needle unit. A combined flow way can be established between the reservoir and the needle unit via the first and second flow-ways when the units are connected. The valve is controlled to open when the reservoir is pressurized, the preservative being provided to react with substances introduced to the second flow way via the needle unit.

Abstract: Systems and methods are provided for optimizing short acting insulin medicament dosage timing relative to a meal event for a subject. Glucose measurements of the subject over a time course and the timing of the measurements are obtained. Meal events in the time course and information regarding when dosages were injected into the subject relative to the meal events is obtained. Bins, each for a different time range for when a dosage is injected relative to a meal event, are constructed. Each bin is assigned glucose measurements in one or more periods within the time course in which the subject injected the dosage within the time range associated with the bin. A glycaemic risk measure is determined for each bin with the assigned measurements and used to identify an optimal relative time range for the subject. This is communicated to a health care practitioner or to the subject.

Abstract: Systems and methods for adjusting a short acting dosage for a prospective meal for a subject with a standing regimen are provided. The standing regimen comprises short acting and long acting regimens. Past records are obtained from insulin pens applying the standing regimen. Each record specifies an amount and type of medicament injected, the type being one of short and long acting, and a timestamp. Responsive to the prospective meal at time (t0), total insulin on board (IOBtotal) is calculated as the sum of IOBbolus and IOBbasal, with IOBbolus being the total amount of short acting medicament injected, indicated by records having timestamps within a duration of the short acting medicament to t0, and IOBbasal being the total amount of long acting medicament injected, indicated by records having timestamps within the duration of the long acting medicament to t0. IOBtotal serves to calculate the short acting dosage for the meal.

Abstract: Systems and methods are provided for adjusting a basal/bolus ratio in a standing insulin regimen for a subject that comprises daily amounts of basal and bolus insulin medicaments that define an initial basal/bolus ratio. A data set comprising glucose measurements of the subject with a respective timestamp for each such measurement over a time course is obtained. One or more fasting events are identified in the time course. A temporal glucose gradient is computed for each fasting event using the glucose measurements in the data set within the fasting event time period. Fasting event glucose gradients are used to determine whether to recommend adjustment to the basal/bolus ratio for the subject without change to the daily total insulin medicament. The recommended adjustment to the basal/bolus ratio is communicated when the determination is made to make the recommended adjustment to the basal/bolus ratio for the subject.

Abstract: A device for estimating a nutritional parameter of a meal consumed by an individual is disclosed. The apparatus comprises processing means adapted to obtain input values of at least a physiological parameter of the user measured prior to and after intake of a meal by the user, and of at least a dose of medication administered to the user. Based on the input values the apparitus is adapted to determine from at least the obtained input values, an estimate of a nutritional parameter of the meal and to generate an output to a user indicative of the determined estimate.