A drug delivery device comprising or adapted to receive a drug-filled cartridge, comprising a piston rod adapted to be rotated by a drive member to thereby move the piston rod distally during expelling, dose setting means allowing a user to simultaneously set a dose amount to be expelled, and a releasable locking mechanism adapted to rotationally lock the drive member relative to the housing during dose setting. The device further comprises release means actuatable between a dose setting mode and an expelling mode, wherein the locking mechanism is released when the release means is actuated from a dose setting mode to an expelling mode.

Improved systems and methods for medicine delivery, and in particular, improved insulin pen needles and related devices are provided. Smart injection devices record and transfer data including medicine level, delivered dose, dose confirmation, and dose time and date. Additional data captured may include glucose concentration, insulin level, carbohydrates ingested, stress level, exercise, blood pressure, and glucose high and low excursion events. Various means of data collection and analysis are provided and systems can identify and flag patients who require intervention. Smart sleeves and add sensing capability to standard insulin pens. Pen needles are provided with sensing capability to confirm and measure doses delivered by insulin pen. A two-part pen cap include a primary sleeve that connects to the insulin pen and an end cap that provides for capturing the time of dose delivery, and monitoring the hold time for a dose delivery after plunger movement.

An assembly for a drug delivery device comprises a housing, a dose member which is displaceable in a proximal direction with respect to the housing for setting of a dose of a drug, a clutch member which is displaced in the proximal direction with respect to the housing when setting the dose, and a stop member configured to define a clutch stop position. The clutch member and the dose member are configured to mechanically cooperate with one another when the clutch member is in the clutch stop position, thereby preventing further displacement of the dose member in the proximal direction with respect to the housing during setting of the dose.

An autoinjector having a reservoir (100) containing fluid and a piston; a needle; a driver (200) having a body; a piston rod (210) movable between a rest position and an injection position; an injection spring (220); and a force control mechanism (280, 290) for causing the force exerted by the injection spring to vary in predetermined manner during injection, and a lever (280) and a cam (290), the lever (280) pivotally mounted on the piston rod, being connected to the injection spring (220), and co-operating with the cam; and an interface module (300) fastened to the driver that receives a reservoir (100) before each actuation. The interface module having a selector ring (310) mounted to turn on the driver module, and pivot elements (320) fastening the reservoir module in the interface module.

A medication delivery device having a lock element. The device is connectable to an electrical plug of a conduit. The device includes an external housing with an opening that ports to a plug receiving hollow within an interior volume. An electrical circuit connected to at least one of a rechargeable battery and a memory controller includes a connection element within the plug receiving hollow. The lock element travels within the plug receiving hollow when a dose delivery assembly of the device operates for forcing medication from the device. The lock element is sized and positioned to have its travel halted by abutment with the plug, when the plug is within the plug receiving hollow and electrically interfacing with the connection element, to thereby halt the dose delivery assembly from further operating for forcing medication from the device.

Disclosed is an auto-injector for administering a medicament, comprising: a housing; a cartridge receiver configured to receive a cartridge comprising a first stopper; a drive module coupled to move a plunger rod configured to move the first stopper; a resistance sensor configured to provide a resistance signal indicative of resistance against movement of the plunger rod; and a processing unit coupled to the drive module and to the resistance sensor. The processing unit being configured to: control the drive module to move the plunger rod towards the extended plunger rod position; determine present plunger rod position; receive the resistance signal; determine a cartridge parameter based on the resistance signal and the present plunger rod position; and control the drive module to adjust the movement of the plunger rod based on the cartridge parameter.

An assembly for a drug delivery device comprises a housing, a dose member which is displaceable in a proximal direction with respect to the housing for setting of a dose of a drug, a clutch member which is displaced in the proximal direction with respect to the housing when setting the dose, and a stop member configured to define a clutch stop position. The clutch member and the dose member are configured to mechanically cooperate with one another when the clutch member is in the clutch stop position, thereby preventing further displacement of the dose member in the proximal direction with respect to the housing during setting of the dose.

A medication delivery device having a lock element. The device is connectable to an electrical plug of a conduit. The device includes an external housing with an opening that ports to a plug receiving hollow within an interior volume. An electrical circuit connected to at least one of a rechargeable battery and a memory controller includes a connection element within the plug receiving hollow. The lock element travels within the plug receiving hollow when a dose delivery assembly of the device operates for forcing medication from the device. The lock element is sized and positioned to have its travel halted by abutment with the plug, when the plug is within the plug receiving hollow and electrically interfacing with the connection element, to thereby halt the dose delivery assembly from further operating for forcing medication from the device.

The present disclosure refers to a drug delivery device including, a dose setting and/or drive mechanism including a stationary housing having at least one internal groove on an inner surface; a driver positioned within the housing which is moveable relative to the housing during dose dialing and which is moveable relative to the housing during dose dispensing; and at least one flexible tab that is biased to engage the at least one internal groove such that the at least one flexible tab repeatedly engages and disengages the at least one internal groove during dose dialing or during dose dispensing, thereby performing an oscillating movement between two positions including a first position in which the at least one flexible tab engages the at least one internal groove and a second position in which the at least one flexible tab is disengaged from the at least one internal groove.

Drug delivery system comprising a dose setting member adapted to incrementally rotate in a first direction to set a dose, and incrementally rotate in an opposed second direction to reduce a set dose, the dose setting member having a rotational slack in each incremental rotational position. The system further comprises a rotary sensor adapted to detect the amount of rotation of the dose setting member during dose setting. Processor means is adapted to detect a first or second dose setting pattern when the final dose was set by rotating the setting member in the first respectively the second direction. When a first / second dose setting pattern is detected the detected amount of rotation is used to calculate a corrected amount of rotation using a first/ second algorithm compensating for a slack-induced error generated corresponding to the first/ second dose setting pattern.