Abstract: An assembly for a drug delivery device includes a guide track and a spring member. A first section of the guide track defines an angular start position for a guide feature of the dose member and a second section of the guide track defines an axial stop position for the guide feature. When the dose member is rotated in a dose setting direction, the guide feature is angularly displaced from the angular start position towards a connection region of the guide track, the spring member is torsionally biased by the spring member towards the angular start position. When the guide feature passes the connection region, the guide feature enters the second section and is axially displaced towards the axial stop position in which reduction of the torsional bias is prevented by mechanical cooperation of the guide feature and the second section.

Abstract: A piston rod is arranged in a body and provided with a helical element and an axial element. A guide element, which is arranged in the body and fixed relatively to the body, is coupled to the helical element to guide a helical movement of the piston rod and coupled to the axial element to guide an axial movement of the piston rod. The axial movement allows a priming of the device preceding the helical movement of the piston rod.

Abstract: A cartridge holder, which has a distal end and a proximal end, comprises a coupling housing portion in which a cartridge can be inserted at least partly. The coupling housing portion is configured to be coupled to a part of a drug delivery device. The cartridge holder further comprises a fixing member which is connected with the coupling housing portion. The fixing member is moveable radially inwardly to a position in which the fixing member is suitable for securing the cartridge against distal displacement of the cartridge.

Abstract: An assembly for a drug delivery device comprises a drive member which is adapted and arranged to be displaced in a dose setting direction for setting a dose of a drug and to be displaced in a dose delivery direction for delivering the set dose of the drug. The assembly comprises a piston rod which is adapted and arranged to be displaced in the dose delivery direction via mechanical interaction with the drive member for delivering the set dose. The assembly comprises at least one resilient pre-delivery element, wherein the assembly is configured such that the resilient pre-delivery element is biased when the drive member is displaced in the dose setting direction for setting the dose, the biased resilient pre-delivery element relaxes before the drive member is displaced in the dose delivery direction for delivering the dose. When the resilient pre-delivery element relaxes, the piston rod is displaced with respect to the resilient pre-delivery element in the dose delivery direction by a pre-delivery distance.

Abstract: The present invention relates to a drug delivery device, in particular to the dose display mechanism of a drug delivery device comprising: a housing of substantially tubular shape and having at least a first dose displaying window, a dose setting dial rotatably arranged in the housing) and comprising a first and a second helical dose indicating scale on its peripheral surface, wherein the information contents of the first dose indicating scale and the second dose indicating scale are arranged in different orientations.

Abstract: An assembly for a drug delivery device (1), comprises a housing (2), a dose member (22), a guide track (42) and a spring member (26). The dose member (22) is adapted to be rotated in a dose setting direction with respect to the housing (2) for setting a dose of a drug (5) and to be rotated in a dose delivery direction with respect to the housing (2) for delivering the set dose. The dose member (22) comprises a guide feature (46). The guide track (42) is configured to mechanically cooperate with the guide feature (46). The guide track (42) comprises a first section (43A) and a second section (43B) which are connected to each other via a connection region (55). The first section (43A) defines an angular start position (54) for the guide feature (46) and the second section (43B) defines an axial stop position (56) for the guide feature (46).

Abstract: An assembly for a drug delivery device (1), comprises a housing (2), a dose member (22), a guide track (42) and a spring member (26). The dose member (22) is adapted to be rotated in a dose setting direction with respect to the housing (2) for setting a dose of a drug (5) and to be rotated in a dose delivery direction with respect to the housing (2) for delivering the set dose. The dose member (22) comprises a guide feature (46). The guide track (42) is configured to mechanically cooperate with the guide feature (46). The guide track (42) comprises a first section (43A) and a second section (43B) which are connected to each other via a connection region (55). The first section (43A) defines an angular start position (54) for the guide feature (46) and the second section (43B) defines an axial stop position (56) for the guide feature (46).

Abstract: An assembly for a drug delivery device comprises a drive member which is adapted and arranged to be displaced in a dose setting direction for setting a dose of a drug and to be displaced in a dose delivery direction for delivering the set dose of the drug. The assembly comprises a piston rod which is adapted and arranged to be displaced in the dose delivery direction via mechanical interaction with the drive member for delivering the set dose. The assembly comprises at least one resilient pre-delivery element, wherein the assembly is configured such that the resilient pre-delivery element is biased when the drive member is displaced in the dose setting direction for setting the dose, the biased resilient pre-delivery element relaxes before the drive member is displaced in the dose delivery direction for delivering the dose. When the resilient pre-delivery element relaxes, the piston rod is displaced with respect to the resilient pre-delivery element in the dose delivery direction by a pre-delivery distance.

Abstract: A cartridge holder, which has a distal end and a proximal end, comprises a coupling housing portion in which a cartridge can be inserted at least partly. The coupling housing portion is configured to be coupled to a part of a drug delivery device. The cartridge holder further comprises a fixing member which is connected with the coupling housing portion. The fixing member is moveable radially inwardly to a position in which the fixing member is suitable for securing the cartridge against distal displacement of the cartridge.

Abstract: The present invention relates to a drug delivery device, in particular to the dose display mechanism of a drug delivery device comprising: a housing of substantially tubular shape and having at least a first dose displaying window, a dose setting dial rotatably arranged in the housing) and comprising a first and a second helical dose indicating scale on its peripheral surface, wherein the information contents of the first dose indicating scale and the second dose indicating scale are arranged in different orientations.

Abstract: A piston rod is arranged in a body and provided with a helical element and an axial element. A guide element, which is arranged in the body and fixed relatively to the body, is coupled to the helical element to guide a helical movement of the piston rod and coupled to the axial element to guide an axial movement of the piston rod. The axial movement allows a priming of the device preceding the helical movement of the piston rod.

Abstract: An assembly for a drug delivery device (1), comprises a housing (2), a dose member (22), a guide track (42) and a spring member (26). The dose member (22) is adapted to be rotated in a dose setting direction with respect to the housing (2) for setting a dose of a drug (5) and to be rotated in a dose delivery direction with respect to the housing (2) for delivering the set dose. The dose member (22) comprises a guide feature (46). The guide track (42) is configured to mechanically cooperate with the guide feature (46). The guide track (42) comprises a first section (43A) and a second section (43B) which are connected to each other via a connection region (55). The first section (43A) defines an angular start position (54) for the guide feature (46) and the second section (43B) defines an axial stop position (56) for the guide feature (46).