A drive mechanism for a delivery device comprising, a rotator comprising an outer surface and an inner surface, the rotator configured to rotate from a first position to a second position. A needle cover comprising an inner surface that engages the outer surface of the rotation. A rotatable plunger rod comprising an outer surface configured to engage the inner surface of the rotator. When the rotator rotates from the first position to the second position, the rotatable plunger rod is rotated by the rotator and the plunger rod spring is released from a pre-tensioned state to exert a force on the rotatable plunger rod.

The present invention relates to a medicament delivery device that is reliable, safe and intuitive to use and configured to prevent a subsequent does from being administered before a previously initialized dose has been fully delivered. This is accomplished by mechanically interacting structures arranged as an interface between a lockable delivery button and a release member.

Drive and metering devices for injection devices include a dose display element with a helical dosage scale; an indicating means; a metering member, which can be rotated relative to the indicating means for dose setting; a discharge spring and an advancement member. The dose display element can be screwed relative to the indicating means about a longitudinal axis (L) and a value on the dose scale can be read via the indicating means corresponding to the set dose. The discharge spring causes the advancement member to discharge the product as it moves an overall discharge stroke length (Hg), where the overall discharge stroke length (Hg) comprises a first partial discharge stroke length (H1), during which the dose display element is rotationally secured in relation to the indicating means and where the dose display element can be rotated relative to the indicating means following the first partial discharge stroke length (H1).

A dosing device for an injection device, the dosing device including an actuating element for adjusting and/or dispensing a dose from the injection device, a thrust element for generating a forward movement for discharging a dose and a coupling to which the actuating element and the thrust element are coupled such that a rotational movement of the actuating element is transmitted directly to the thrust element and an axial movement of the actuating element is different than an axial movement of the thrust element.

A data collection device including an attachment assembly for attaching the data collection device to a dose setting dial of a medicament administration device, a light source configured to illuminate a portion of a surface of an internal component of the medicament administration device including a pattern of relatively reflective and non-reflecting regions formed on the surface of the internal component, and an optical sensor configured to receive light reflected by at least the relatively reflective regions.

A dispensing device is provided to dispense a designated amount of a material on every dose delivery operation. The dispensing device includes a thumb pad, a cam drum coupled to the thumb pad, and a pawl nut comprising a one-way pawl. The thumb pad may be pulled out in a direction away from a distal end of the dispensing device for setting a dose of the material to be dispensed out and may be pushed in towards the distal end for delivering the dose. The cam drum includes a plurality of linear cam profiles and a plurality of helical cam profiles that may be disposed on a surface of the cam drum. The one-way pawl may engage with a ratchet disposed at a distal end of the cam drum and may prevent a rotation of the cam drum in an undesired direction.

A drug delivery device for administering a predefined dose of a medicament comprising a housing is presented where the housing includes a body to accommodate a drive mechanism, a cartridge holder to accommodate a cartridge having a piston slidably disposed therein in an axial direction (z), and an interconnection between cartridge holder and body. The interconnection has, at least one displaceable or resiliently deformable latch element to mate with a corresponding bearing, and the latch element is displaceable or deformable in a direction (z, w) extending substantially parallel to a circumferential side wall of the body or cartridge holder.

A drug delivery assembly is used for delivering a medicament to a patient. The assembly includes a main body having a housing and defining a recess, with an actuator associated with the housing. An adhesive pad, configured to attach to a human body surface, is associated with a lower surface of the housing. The assembly also includes a cartridge configured to be at least partially inserted into the recess and having: a cartridge housing, a drug reservoir positioned within the cartridge housing, a stopper movably associated with the drug reservoir, and a needle movably associated with the drug reservoir. The actuator is manipulated to deploy the needle, with the actuator also engaging the cartridge to prevent removal of the cartridge from the recess during drug delivery. A rod of the body engages the stopper to move the stopper and dispense a medicament from the drug reservoir during drug delivery.

An injection device for delivering a predetermined fixed dose of liquid drug, comprising a base member, a piston rod a first tubular member, and a second tubular member.

Data collection devices for attachment to injection devices are disclosed. In one embodiment, the data collection device includes: a body attachable to a dial member of the injection device, a sensor arrangement comprising a sensor and a scale, and a processor. The sensor is configured to detect a rotation of the body relative to a trigger of the injection device. The processor is configured to detect a rotation of the body relative to the trigger. One of the sensor and the scale is arranged in or on the body and wherein the other one of the sensor and the scale is located on the trigger or is rotationally lockable to the trigger configured to detect a rotation of the body relative to the trigger.