Abstract: An assembly for a drug delivery device is presented. The assembly comprises a housing and a piston rod having a longitudinal axis, a distal end and a proximal end. The piston rod further comprises a piston rod interaction feature, and a piston rod guide being movable with respect to the piston rod, the piston rod guide further comprising a guide interaction feature corresponding to the piston rod interaction feature, the piston rod guide being movable with respect to the piston rod to switch between a first state and a second state of the assembly, the second state being different from the first state.

Abstract: A method and an assembly for providing a drug delivery device is presented. The assembly includes a housing and an end of dose feedback connection provides the user with an audible and/or tactile signal to indicate that the drug delivery is completed. A first section of the end of dose feedback connection is located on a distal portion of an inner sleeve and a second section of the end of dose feedback connection is located on the mid-body.

Abstract: Described is a needle assembly comprising a needle and a needle hub adapted to carry the needle. The needle hub includes a proximal portion adapted to engage a medicament delivery device having a first thread and a cover portion adapted to abut a distal surface of the delivery device. The proximal portion includes a second thread adapted to engage the first thread, and the second thread is offset from the cover portion by a first distance.

Abstract: A spring assisted drug delivery device is provided comprising a housing and a lead screw having a longitudinal axis, a distal end and a proximal end that is rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing. The device further comprises a drive nut threadedly engaged and screwable along the lead screw threaded shaft and a number sleeve threadedly engaged with the housing to be screwable relative to the housing. A dial link is connected with the drive nut and axially movable and rotatably fixed relative to the drive nut and an inner sleeve is threadedly engaged with the number sleeve, the inner sleeve being axially movable and rotatably fixed relative to the housing. A mid-body is axially fixed inside of the housing. A spring is provided that assists a user of the device during a dose administration step.

Abstract: A spring assisted drug delivery device comprising: a housing; a piston rod having a longitudinal axis, a distal end and a proximal end that is axially movable in a distal direction relative to the housing, a mid-body fixed inside of the housing and coupled to the piston rod in such a manner that the piston rod is axially movable in a distal direction relative to the mid-body, and wherein a preloaded spring is operatively coupled to the piston rod in such a manner that the spring is released and the stored force in the spring supports driving the piston rod in the distal direction during a dose administration step.

Abstract: The present disclosure provides for a drive assembly for a drug delivery device, the drive assembly at least comprising: a housing; a number sleeve threadedly engaged with the housing to be screwable relative to the housing, where the number sleeve has inner and outer proximal sections; a dial link rotatably fixed with the number sleeve when the dial link and number sleeve are in a first axial arrangement relative to each other, the number sleeve being rotatable relative to the dial link when the dial link and number sleeve are in a second axial arrangement; a clutch component connected to the inner proximal section of the number sleeve through a plurality of flexible assembly fingers, the clutch component being configured to engage the number sleeve with the dial link in the first axial arrangement of dial link and number sleeve and to disengage the number sleeve from the dial link in the second axial arrangement of dial link and number sleeve.

Abstract: Described is an injection device (1) for administering a drug, the injection device (1) comprising a cartridge holder (2) adapted to receive a drug cartridge (3), a hollow injection needle (6) having a proximal tip (6.2) adapted to pierce a septum (4) of the cartridge (3) so as to establish a fluid communication between the cartridge (3) and the needle (6),and a cap (7) arrangeable over the cartridge holder (2) in a manner to cover the needle (6). In an initial state the cartridge (3) is arranged within the cartridge holder (2) with the septum (4) axially spaced from the proximal tip (6.2) of the needle (6). The cap (7) is adapted to move the needle (6) relative to the septum (4) for piercing it on movement of the cap (7) relative to the cartridge holder (2).

Abstract: The present invention concerns an assembly for a drug delivery device (1) comprising a drive assembly (3) and a cartridge holder (41). The drive assembly (3) comprises a first engagement member (43) and the cartridge holder (41) comprises a second engagement member (44). The drive assembly (3) is configured to be arranged inside a body (2) of the drug delivery device (1). The drive assembly (3) is engageable to the cartridge holder (41) by an engagement of the first and the second engagement member (43, 44). Moreover, the present invention concerns a method for assembling the drug delivery device (1).

Abstract: An assembly (30) for a drug delivery device (1) is provided, the assembly comprising an actuator (16) which is configured to perform a setting movement in order to set a dose of medication, and which is configured to perform a dispense movement in order to dispense a dose of medication. The assembly (30) further comprises a stop mechanism (31) which is configured to allow a setting movement of the actuator (16) after a maximum amount of medication has been delivered and to inhibit a dispense movement of the actuator (16) after a setting movement when a maximum amount of a medication has been delivered.

Abstract: An assembly for a drug delivery device (1) is provided comprising a first member (10) comprising a main body (14) and an elastically displaceable feature (13) connected to the main body, and an attenuation member (22), wherein the attenuation member mechanically cooperates with the elastically displaceable feature to influence the force which has to be exerted on the elastically displaceable feature to displace the elastically displaceable feature elastically with respect to the main body. Further using an attenuation member (22) in a drug delivery device (22) is proposed to tune the force required to elastically displace an elastically displaceable feature (13) of a first member (10) of the drug delivery device by bringing the attenuation member into mechanical cooperation with the elastically displaceable feature.

Abstract: A drug delivery device for injecting a dose of a medicament, comprising at least one housing component housing a cartridge containing the medicament. The housing component comprises at least one disaggregating means comprising a perforated structure or comprising a structurally weakened portion visibly disposed on the outer circumference of the at least one housing component. The disaggregating means further having at least one bendable and/or pivot-mounted lug adapted as a gripping means and integrally formed with the housing component for dividing the housing component into at least two separate pieces, or for at least partially dividing the housing component into at least two mutually interconnected pieces that can be pivoted with respect to each other.

Abstract: The present invention relates to a piston for a cartridge for a drug delivery device comprising: at least one annular sealing surface to radially abut against an inner side wall of a cartridge, a distal surface to confine a drug receiving volume of the cartridge, a thrust receiving surface adapted to receive a thrust exerting plunger of a drug delivery device for displacing the piston in a proximal direction relative to the side wall, wherein the thrust receiving surface comprises numerous centering elements protruding from the thrust receiving surface towards the plunger and wherein the centering elements comprise an outer shape and geometry that matches with a corresponding receptacle of the plunger, and wherein the centering elements are arranged and aligned on the circumference of an imaginary annular or circular structure.

Abstract: A drive mechanism of a drug delivery device is presented comprising of a piston rod extending in an axial direction to be operably engaged with a piston of a cartridge, the piston rod being adapted to exert distally directed pressure to the piston for expelling a liquid medicament from the cartridge. A housing component to accommodates the piston rod and has a guiding member extending in a lateral plane and being engaged with piston rod for guiding the same in axial direction relative to the housing component. At least one actuation lock is used to engage with the piston rod to inhibit a proximally directed movement of the piston rod relative to the housing component.

Abstract: A method for securing a cartridge (4) in a cartridge holder (3) is provided, the method comprising the steps of inserting the cartridge (4) into the cartridge holder (3), the cartridge holder (3) having a proximal end and a distal end, axially displacing the cartridge (4) in a proximal direction with respect to the cartridge holder (3) from a distal initial position to a proximal end position and securing the cartridge (4) in the end position against displacement in the distal direction with respect to the cartridge holder (3). An assembly for a drug delivery device (1) is provided comprising a cartridge (4), an adjusting member (12, 25, 28, 34) and a cartridge holder (3). The cartridge holder (3) has a distal end and a proximal end. The adjusting member (12, 25, 28, 34) is secured to the cartridge holder (3). The adjusting member (12, 25, 28, 34) holds a distal portion of the cartridge (4) at a distance with respect to a distal portion of the cartridge holder (3).

Abstract: A cartridge holder for a drug delivery device. The cartridge holder comprises a proximal portion for receiving a cartridge filled with a medicinal fluid to be dispensed by the drug delivery device, and a distal portion comprising a mount for a piercing assembly. The piercing assembly is adapted to provide a fluid-transferring connection with the inner volume of the cartridge by way of a piercing element pointing in distal direction with a pointed free end section. Retaining means adapted to substantially prevent the cartridge from displacing in proximal direction with respect to the proximal portion distal portion.

Abstract: An assembly for a drug delivery device is provided, the assembly having a compression spring, wherein the compression spring is compressed during the setting of a dose of a drug. The assembly further comprises a sleeve member, wherein the compression spring is in direct contact with the sleeve member and wherein the compression spring and the sleeve member are configured such that a relaxation of the compression spring effects a rotational and an axial movement of the sleeve member in a proximal direction, thereby causing a dispensing of a dose from the drug delivery device.

Abstract: A needle assembly for a drug delivery device includes a cup-shaped receptacle of non-circular cross-section having a bottom section supporting a needle element. The needle element is adapted to penetrate a pierceable seal of a cartridge to be disposed in a cartridge holder of the drug delivery device. The receptacle includes a fastening mechanism adapted to engage with a fastening mechanism of a support section of the cartridge holder for releasably fastening the needle assembly. The fastening mechanisms are convertible into a release configuration by changing the distance between mutually corresponding fastening mechanisms through twisting the receptacle with respect to the support section.

Abstract: An assembly for a drug delivery device is provided, the assembly comprising an actuator which is configured to perform a setting movement in a proximal direction in order to set a dose of a drug, and which is configured to perform a dispense movement in a distal direction in order to dispense a dose of a drug. The assembly further comprises stop mechanism acting after a maximum amount of a drug has been delivered, which is configured to axially constrain the setting movement of the actuator such that the setting of a dose is inhibited, wherein a limited axial movement of the actuator is allowed.

Abstract: An assembly for a drug delivery device is provided, wherein the assembly comprises an actuator which is configured to perform a setting movement in order to set a dose and which is configured to perform a dispense movement in order to dispense a dose and a piston rod which is configured to be moved in a distal direction in order to dispense a dose, and a snap feature which is configured to snap into engagement with the piston rod. The snap feature may be configured to inhibit a dispense movement of the actuator and/or a setting movement of the actuator when a maximum amount of medication has been delivered.

Abstract: The drive mechanism is suitable for a permanent delivery of a drug from a compact drug delivery device, which may be carried on the body. The drive mechanism comprises a flexible advance cable bearing a coupling feature of longitudinal extension. The advance cable is guided by a guide means. A drive means engages the coupling feature and thus enables an advancement of the advance cable according to the guide means. An end piece is provided to push a plug or bung of a cartridge containing a drug, and the end piece is driven by the advance cable. The drive means is permanently engaged with the coupling feature. This allows a permanent advancement of the plug or bung by means of the drive mechanism.