Abstract: A drug delivery device is proposed, the drug delivery device comprising: a housing; a drive mechanism; a cartridge containing a drug, the cartridge being retained in a defined position relative to the housing, wherein the drive mechanism is configured to dispense the drug from the cartridge; a cartridge bias system, which comprises at least one resilient member and at least one rigid force transfer body, wherein the at least one rigid force transfer body is movably located within the housing, wherein the cartridge bias system is arranged and configured to exert a force on the cartridge to maintain the cartridge in the defined position, wherein the force is provided by the at least one resilient member, and wherein the at least one rigid force transfer body is operatively connected to the at least one resilient member such that the force is reacted by the at least one rigid force transfer body. Further, a method to modify a drug delivery device is disclosed.

Abstract: 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.

Abstract: A cartridge assembly for a drug delivery device can include: a cartridge holder, a cartridge containing a drug, and a fixing member, wherein the cartridge holder includes an interior cartridge holding section, the cartridge being arranged in the cartridge holding section, wherein the fixing member is axially secured to the cartridge holder and secures the cartridge permanently in the cartridge holder.

Abstract: A drug delivery device comprising a housing with an opening, a piston rod having a proximal end and a distal end, and a bearing. The piston rod is adapted to engage the opening for guiding the piston rod during a movement of the piston rod relative to the housing. The piston rod also includes a first attachment element located at the distal end. The bearing has a second attachment element for rotatable attachment of the bearing at the distal end of the piston rod. The first attachment element and/or the second attachment element is elastically deformable in a radial direction for snap engagement of the piston rod and the bearing. The opening is adapted to receive the first attachment element and the second attachment element if attached to each other but preventing disengagement of the first attachment element and the second attachment element if received in the opening.

Abstract: A cartridge assembly for a drug delivery device can include: a cartridge holder, a cartridge containing a drug, and a fixing member, wherein the cartridge holder includes an interior cartridge holding section, the cartridge being arranged in the cartridge holding section, wherein the fixing member is axially secured to the cartridge holder and secures the cartridge permanently in the cartridge holder.

Abstract: A cartridge assembly for a drug delivery device is described. The cartridge assembly includes a cartridge containing a drug, the cartridge including a dispensing end; a cartridge holder, the cartridge holder defining an interior cartridge holding section, where the cartridge is arranged within the cartridge holding section; and a fixing feature. The fixing feature includes a fixing surface, in particular a radially oriented surface, which is arranged to abut a cartridge surface of the cartridge, in particular a radially oriented surface, to prevent removal of the cartridge from the cartridge holder such that the cartridge is permanently secured in the cartridge holder. The cartridge surface is a proximal surface which faces away from the dispensing end of the cartridge, wherein the cartridge surface is arranged between the dispensing end of the cartridge and the end opposite of the dispensing end, and wherein the fixing feature is integrated into the cartridge holder.

Abstract: 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.

Abstract: An arrangement of drug delivery devices is provided with interchangeable members and non-interchangeable members.

Abstract: The present disclosure relates to a drug delivery device for setting and dispensing doses of a liquid drug. The device comprises a housing and a dose setting and drive mechanism with a dose setting member. The dose setting and drive mechanism is, at least partially, arranged within the housing and is configured to perform a dose setting operation for selecting a dose to be delivered by the drug delivery device by moving the dose setting member relative to the housing and a dose delivery operation for delivering the set dose by axially displacing the dose setting member along an axis. The maximum radial extension perpendicular to the axis of the dose setting member is smaller than the maximum radial extension of a region of the housing located adjacent to the dose setting member.

Abstract: A cartridge assembly for a drug delivery device is described. The cartridge assembly includes a cartridge containing a drug, the cartridge including a dispensing end; a cartridge holder, the cartridge holder defining an interior cartridge holding section, where the cartridge is arranged within the cartridge holding section; and a fixing feature. The fixing feature includes a fixing surface, in particular a radially oriented surface, which is arranged to abut a cartridge surface of the cartridge, in particular a radially oriented surface, to prevent removal of the cartridge from the cartridge holder such that the cartridge is permanently secured in the cartridge holder.

Abstract: The present disclosure refers to a drug delivery device for setting and dispensing doses of a liquid drug which may be used together with a module for detecting the amount of a dose selected and/or delivered. The device comprises a housing and a dose setting and drive mechanism with a dose setting member. The dose setting and drive mechanism is configured to perform a dose setting operation for selecting a dose to be delivered by rotating the dose setting member relative to the housing and a dose delivery operation for delivering the set dose by pushing the dose setting member axially towards the housing without relative rotation therebetween. The dose setting member comprises a set of axially directed stop teeth formed at its distal end which are configured to engage with a set of counterstop teeth located on the housing at the end of the dose delivery operation.

Abstract: A drug delivery device for setting and dispensing doses of a liquid drug. The device comprises a housing and a dose setting and drive mechanism with a dose setting member and a dose setting drum. The dose setting and drive mechanism is configured to perform a dose setting operation for selecting a dose to be delivered, and a dose delivery operation for delivering the set dose. The dose setting drum comprises a set of clutch teeth that are engagable with a mating set of teeth on the dose setting member. The clutch teeth and the mating teeth are engaged during a dose setting operation to prevent rotation therebetween and the clutch teeth and the mating teeth are disengaged during a dose delivery operation allowing relative rotation between the dose setting drum and the dose setting member. The clutch teeth are formed on an external surface of the dose setting drum.

Abstract: A sensor device removably attachable to a drug delivery device includes a sensing arrangement arranged within the sensor device and circuitry configured to process signals provided by the sensing arrangement. The sensing arrangement is configured such that, when the sensor device is attached to the drug delivery device, the sensing arrangement is operable to read encoded information present on a rotatable component internal to the drug delivery device and that is able to be sensed through a window or aperture of the drug delivery device, and is operable to sense through the window or aperture at least a part of a drive mechanism of the drug delivery device. The circuitry is configured to determine information relating to a set dose, and to determine information relating to whether the drug delivery device is in a dose setting mode or whether the device is in a dose delivery mode.

Abstract: The disclosure relates to an injection device for setting and injecting pre-set or user-selectable doses of a medicament, the injection device comprising an elongated housing defining a longitudinal direction and configured to accommodate a cartridge containing the medicament, and a detector arrangement operable to detect a relative movement between a first element and a second element. The first element is subject to a first movement relative to the second element along a first longitudinal direction for setting of a dose, the first element is subject to a second movement relative to the second element along a second longitudinal direction for dispensing of the dose, one of the first movement and the second movement is a helical movement, and the other one of the first movement and the second movement is a sliding movement in the longitudinal direction. The second element comprises at least one reference element fixed to the second element.

Abstract: An arrangement of drug delivery devices is provided with interchangeable members and non-interchangeable members.

Abstract: The disclosure relates to an injection device for setting and injecting pre-set or user-selectable doses of a medicament, the injection device comprising an elongated housing defining a longitudinal direction and configured to accommodate a cartridge containing the medicament, and a detector arrangement operable to detect a relative movement between a first element and a second element. The first element is subject to a first movement relative to the second element along a first longitudinal direction for setting of a dose, the first element is subject to a second movement relative to the second element along a second longitudinal direction for dispensing of the dose, one of the first movement and the second movement is a helical movement, and the other one of the first movement and the second movement is a sliding movement in the longitudinal direction. The second element comprises at least one reference element fixed to the second element.

Abstract: A method for associating dose related data captured with and stored in an add-on device to a drug delivery device by means of an external computing device is described. The method includes: providing a drug delivery device comprising identification information, providing an add-on device, comprising communication means allowing the add-on device to communicate with an external computing device, means for capturing and storing dose related data, wherein the add-on device is adapted to be releasably mounted on and in engagement with the drug delivery device, providing an external computing device comprising, means for receiving the identification information from the drug delivery device, communication means allowing the external control device to communicate with the add-on device, processor means, and storage means comprising a computer program.

Abstract: An electronic system for a drug delivery device is provided, the electronic system comprising at least one user interface member configured to be manipulated by a user for performing a dose operation, e.g.

Abstract: A supplemental device for attachment to an injection device, the supplemental device having a housing containing at least two electromechanical switches each having an open state and a closed state and a protrusion associated with each switch configured to protrude from the housing so as to contact a rotatable surface of the injection device while the supplemental device is attached to the injection device; and a processor arrangement configured to detect a change in the state of each of the switches; and to determine a direction of rotation of the rotatable surface of the injection device from the detected state changes.

Abstract: An electronic system for a drug delivery device is disclosed. The electronic system comprises a dose setting and drive mechanism. The dose setting and drive mechanism comprises a first member and a button module. The dose setting and drive mechanism is configured such that, at least in the dose delivery operation and/or in the dose setting operation, the first member moves relative to the button module. The electronic system has at least a first low power consumption state and a second high power consumption state. A rotation and/or axial movement of the button module relative to the first member generates a movement component of the at least one switch member relative to the button module and the first member, which triggers switching between the first low power consumption state and the second high power consumption state.