A therapeutic product delivery device is described which comprises a device body and a cartridge for holding a therapeutic product. An engagement structure is provided for releasably engaging the cartridge with the device body. A fault detector is provided for detecting a fault in the delivery of the therapeutic product from the cartridge. A release trigger is responsive to the detection of a fault to cause the engagement structure to release the cartridge from the device body. In this way, a fault causes the cartridge to be released from the device body, which will prevent any further delivery of the therapeutic product to the patient. This solution is strongly preferable to a solution in which a product delivery mechanism (e.g. a pump) is merely paused or stopped, since when the cartridge separates then no further delivery is possible at all, until the cartridge is reattached (or more probably replaced with a new cartridge in case the fault is with the cartridge).

A medicament container holder for a medicament delivery device is presented having a C-shaped tubular body having a longitudinal gap extending along the entire axial extension of the C-shaped tubular body, which C-shaped tubular body is configured to be placed around a medicament container, wherein the C-shaped tubular body has a first axial end provided with an end flange extending radially inwards and configured to bear against a neck of a medicament container, and wherein the first axial end is provided with a lip extending proximally from the end flange.

A medicament delivery device is presented for expelling medicament from a mechanically flexible medicament container where the delivery device has a housing having a proximal housing end, a distal housing end, and a central channel extending through the proximal housing end and towards the distal housing end, the central channel being configured to receive the medicament container, wherein the housing has an inner surface provided with a first axial channel and a second axial channel arranged on opposite sides of the central channel, a drive member arranged to move linearly towards the proximal end of the housing, a plurality of first segments arranged one after the other in the first axial channel, and a plurality of second segments arranged one after the other in the second axial channel, wherein the drive member has a first leg and a second leg are configured to move.

An injection device for dispensing a product, the injection device including a moveable element which is moved for a dispensing operation, a spring, a product container holder and a product container, wherein the spring pushes against the moveable element to move the moveable element to an initial position after the dispensing operation has ended and against the product container to seat the product container in the product container holder.

An autoinjector for dispensing a liquid product includes a housing; a product container arranged in the housing, particularly, a syringe comprising a displaceable piston; a drive member; a first spring which acts on the drive member and the piston to dispense the product from the container; signal element releasably axially coupled with the drive member so that the signal element is transported in the dispensing direction as said drive member is displaced; and a second spring, which exerts a spring force on the signal element against the dispensing direction and is tensioned as the signal element is transported in the dispensing direction. When the signal element is released or detached from the axial coupling, the second spring causes the signal element to accelerate opposite the dispensing direction and strike against a signal stop and generate an acoustic and/or tactile signal.

A cartridge holder (4) for retaining a cartridge (5) comprising a distal end and a proximal end being spaced apart from one another in the direction of an axis, an interior (50) which is suitable to receive and retain a cartridge (5) in a cartridge retaining section (47B) of the interior (50), and a main part (47) and at least one protrusion (39) which is moveably connected to the main part (47). The protrusion (39) is arranged to define the radial extension of a subsection (10) of the interior (50), wherein the subsection (10) is arranged at an axial position which is further away from the distal end than the cartridge retaining section (47B). Furthermore, the protrusion (39) is arranged to vary the radial extension of the subsection (10) when the protrusion (39) is moved with respect to the main part (47). Moreover, a method for securing a cartridge (5) in a cartridge holder (4) is proposed.

A cartridge retainer comprises a sleeve having a distal end a proximal end and a longitudinal axis extending between the distal end and the proximal end. One or more tabs extend radially from the sleeve toward the longitudinal axis and are configured to radially deflect away from the longitudinal axis. One or more deformable members extend axially from the distal end of the sleeve toward the one or more tabs and are configured to deform in a longitudinal direction toward the distal end.

A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.

An autoinjector for dispensing a liquid product includes a housing; a product container arranged in the housing, particularly, a syringe comprising a displaceable piston; a drive member; a first spring which acts on the drive member and the piston to dispense the product from the container; a signal element releasably axially coupled with the drive member so that the signal element is transported in the dispensing direction as the drive member is displaced; and a second spring, which exerts a spring force on the signal element against the dispensing direction and is tensioned as the signal element is transported in the dispensing direction. When the signal element is released or detached from the axial coupling, the second spring causes the signal element to accelerate opposite the dispensing direction and strike against a signal stop and generate an acoustic and/or tactile signal.

The disclosure is directed to a differential gear mechanism for a drug delivery device with a primary drug delivery assembly and a secondary drug delivery assembly, wherein the primary drug delivery assembly comprises a primary dose dial sleeve and wherein the secondary drug delivery assembly comprises a secondary drive sleeve. The disclosure is also directed to a respective drug delivery device.