An injection device includes an elongated housing extending along a longitudinal axis, a piston rod to operably engage with a piston of a cartridge filled with the medicament, a dose tracker selectively operably engageable with the piston rod, wherein the dose tracker is longitudinally displaceable relative to the housing from an initial position in a proximal direction towards at least a first activation position for setting of the dose and wherein the dose tracker is longitudinally displaceable relative to the housing in a distal direction from the at least first activation position towards the initial position for dispensing of the dose, a spring to urge the dose tracker in the proximal direction relative to the housing, an interlock to lock the dose tracker in the initial position relative to the housing, and a release member to release the interlock.

A drug delivery device with a housing configured to connect to a dispensing unit including a compartment containing a fluid, a piston rod configured to move in a proximal direction for ejecting the fluid, and a dosing mechanism including an actuation member to be actuated by a user. The device includes a conversion mechanism configured to convert a movement of the actuation member to a movement of the piston rod. The conversion mechanism includes a dose selector member, which is rotationally fixed to the housing and axially movable with respect to the housing, and a dosing member, which is rotationally movable with respect to the dose selector member. The drug delivery device includes a friction reduction mechanism provided between the dose selector member and the dosing member to reduce friction between the dose selector member and the dosing member.

A kit includes a drug delivery device and a dispensing unit. The drug delivery device includes a housing, a resetting element and a piston rod and the dispensing unit includes a cartridge holder. The cartridge holder is configured to be mounted to the housing and to receive a cartridge filled with a drug. The piston rod is configured to move in a proximal direction out of the housing to eject the drug and the resetting element is configured to rotate relative to the housing when no dispensing unit is attached to the housing and to thereby move the piston rod back into the housing. The dispensing unit is configured to press axially against the resetting element upon mounting to the housing to move the resetting element in the distal direction into the housing, and thereby rotationally lock the resetting element with respect to the housing.

A drug delivery device has a housing with a longitudinal axis, a dose setting member actuatable by a user and rotatable around the longitudinal axis to set a dose to be delivered by the drug delivery device, a piston rod that is configured to be axially advanced in a proximal direction to deliver the set dose, and a dosing member for defining the axial advancement of the piston rod upon delivery of the set dose. The dosing member is axially movable along the longitudinal axis and rotationally movable around the longitudinal axis during dose setting, and the dosing member is rotationally fixed to the dose setting member during dose setting. The dosing member includes a maximum dose stop that is configured to engage with a maximum stop feature provided at the housing to limit movement of the dosing member with respect to the housing upon setting a maximum dose.

An injection device having a delivery element with an inner thread may be driven by rotation and includes a cylindrical outer wall region, which is substantially smooth. Such features provide a delivery element configured such that it is less intimidating to patients than known threaded rods, and may facilitate easy cleaning. The delivery element may be non-rotatably guided and axially spring-loaded, and may be inserted axially into the housing when the reservoir is replaced. The driving thread element for the delivery element may be mounted in the vicinity of the distal end of the housing.

The present invention relates to a medicament delivery device (10) comprising a housing (12, 14); a medicament container holder (90), arranged movable in relation to said housing (12, 14) and capable of accommodating a medicament container (92); an biased activator (160) comprising a plunger rod (164), which plunger rod (164) is arranged to act on the medicament container (92) for delivering a dose of medicament through a medicament delivery member (102 when said biased activator (160) is operated; a manually operable dose setting member (72) operably connected to both said housing and said medicament container holder such that manual operation of said dose setting member (72) will cause the medicament container holder (90) with the medicament container (92) to move towards said plunger rod (164) for setting a dose of medicament to be delivered; a dose drum (56) releasably connected to the dose setting member (72) through a releasable connection mechanism (68, 84I) such that when the dose setting member is operated, said dose drum (56) is displaced from an initial position to a set dose position; a release mechanism (116) operably connected to said biased activator (160), wherein, when said plunger rod (164) is moved to an end position of the dose delivery operation, said release mechanism (116) is arranged to act on said connection mechanism (68, 84I) for releasing said dose drum (56) from said dose setting member (72). The invention is characterised in that said release mechanism is arranged with a locking mechanism (130, 84II) arranged to lock said dose setting member (72) from displacement as the connection mechanism (68, 84I) is operated for releasing said dose drum (56) from said dose setting member (72).

The present disclosure relates to an information acquisition system, an electronic device and to a method of acquiring delivery information of a drug delivery device configured for delivery of a dose of a medicament. The drug delivery device includes a housing and a mechanically implemented post-dispensing indicator. A configuration of the post-dispensing indicator visible from outside the drug delivery device is indicative of a size of a dose previously delivered by the drug delivery device. An image of the post-dispensing indicator is captured after delivery of the dose. -The image is processed and the configuration of the post-dispensing indicator is recognized in the image. A dose size is derived from the recognized configuration of the post-dispensing indicator. The dose size is assigned with a timestamp, storing the dose size with the timestamp in a storage.

A system for medication delivery comprises a package containing a medication and a dosing device for delivering a dose of the medication, formulated as a multiparticulate, microspheres, a powder or a liquid. The package comprises a bottle, a bottle insert that covers a bottle opening and includes a dispense nozzle. The dispense nozzle is sealed using a valve that opens when the dosing device is engaged with the bottle. A closure covers the bottle insert and closes the bottle. The dosing device, similar to an oral syringe, comprises a barrel with a valve at a distal end of the barrel, a plunger and a dose control clip for attachment to the plunger. After the dosing device is connected to, the valve of the dispense nozzle, withdrawal of the plunger causes the dosing device to receive the dose of the medication, a user pushes the plunger which pushes the medication through the valve of the barrel and into a patient's mouth.

An injection device is disclosed wherein a dose can be set by rotating a dose setting member, whereby a push button is elevated from one end of the device a distance proportional to the set dose from a position fixed relative to the housing, and wherein the set dose can then be injected by pressing the push button back to its non-elevated position, through which motion a screw will move approximately the same distance or a smaller distance. The invention provides a method of reducing the dose force and/or the push-button movement during injection.

A medication delivery device is disclosed including a rack-and-pinion plunger drive system. The drive system includes an output drive having a pawled end movably coupled with the ratchet teeth of the plunger, and a pinion drive coupled between the housing, the output drive and an actuator. Actuator is longitudinally movable between dose set and delivery positions. Movement of the actuator causes rotation of the pinion drive along the rack to translate the output drive member with the pawled end that is engaged with the plunger ratchet teeth to distally advance the plunger. The device may include one or more of an end of dose mechanism to limit travel of the actuator, a load brake system to stop travel of the plunger under high input forces, a dose detection system, and a dose selector to vary the amount of dose set.