Abstract: The present invention relates to a drive mechanism for a drug delivery device and to a respective drug delivery device, wherein the drive mechanism comprises: —an elongated housing (20) extending in an axial direction (1, 2), a piston rod (70) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in an axial distal direction (1), —a drive sleeve (50) rotatably supported in the housing (20) and being operably releasable from the piston rod (70) for setting of a dose and being operably engageable with the piston rod (70) for dispensing of the dose, —a dose limiting member (60) engaged with the drive sleeve (50) and engaged with the piston rod (70) in such a way, that it is displaced in axial direction (1, 2) relative to the drive sleeve (50) when the drive sleeve (50) rotates relative to the piston rod (70) during a dose setting procedure, and at least one stop (42, 56; 78) to engage with the dose limiting member (60) for limiting the axial displacement of the dose limiting membe

Abstract: Handheld drug injection device (10) for setting and dispensing of a dose of a medicament, having a housing (20) extending in an axial direction (1, 2) and a dose setting and drive mechanism (3) comprising: —a rotatable dose setting member (50) in a sidewall of the housing and engaging two dose indicating wheels (54,56), —a drive member (70) axially displaceable relative to a drive spindle (80) and the housing against the action of a spring element (78) during dose setting and having a sleeve-shaped part (72) being threadedly engaged with the drive spindle (80) to form a spindle gear, and having a rack portion (71) engaged with a gear wheel (58) of the dose setting member, —the drive spindle (80) being linked on its proximal end to a ratchet mechanism (140,150) which is releasable via an axially shiftable trigger button (40) for dose dispensing, and on its distal end via a pinion (86) to a —drive sleeve (90), the latter being axially shiftable to form a clutch for engagement with —a threaded piston rod (120),

Abstract: The present invention relates to a drive mechanism of a drug delivery device for dispensing of dose of a medicament, the mechanism comprising: —an elongated housing (30) extending in an axial direction (1, 2), —a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in a distal axial direction (1), —a drive sleeve (50) extending in axial direction (1, 2) and being rotatable against the action of a spring (68) during a dose setting procedure, —a dispensing sleeve (70) rotatably engaged with the piston rod (80) and being displaceable in axial direction (1, 2) relative to the drive sleeve (50) to engage with the drive sleeve (50) in a torque transmissive way during a dose dispensing procedure.

Abstract: The present invention relates to a drive mechanism of a drug delivery device for dispensing of a dose of a medicament, the mechanism comprising:—a housing (30, 120) extending in an axial direction (1, 2),—a piston rod (90) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in an axial distal direction (1),—a drive sleeve (40) extending in axial direction (1, 2) and being rotatable in a dose incrementing direction (4) against the action of a spring (48) enclosing at least an axial portion of the drive sleeve (40),—a dose limiting member (110) threadedly engaged with the drive sleeve (40), rotatably locked to the housing (30, 120) and at least partially extending radially between the drive sleeve (40) and the spring (48),—at least one stop (44, 47, 113, 114) located on at least one of dose limiting member (110) and drive sleeve (40) for limiting an axial displacement of the dose limiting member (110) relative to the drive sleeve (40).

Abstract: The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the mechanism comprising: a housing (20), a piston rod (120) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in a distal direction (1), a rotatable member (80) arranged on an axially extending axis of rotation (4) in the housing (20), said rotatable member (80) being rotatable in a dose incrementing direction (5) against the action of a spring element (78) and being operably engageable with the piston rod (120) during dose dispensing, a clutch member (150) comprising at least one radially displaceable clutch element (153) to engage with a rim (82) of the rotatable member (80) with variably adjustable strength.

Abstract: The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicament, and to a respective drug delivery device, wherein the drive mechanism comprises: an elongated housing (20) extending in an axial direction (1, 2), a piston rod (160) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in axial distal direction (1), a drive wheel (110) axially fixed to the housing (20), engaged with the piston rod (160) and rotatable relative to the housing (20) for driving the piston rod (160) in distal direction (1), a drive sleeve (30) axially displaceable relative to the drive wheel (110) to rotatably engage with the drive wheel (110) in a distal dose dispensing position and to disengage from the drive wheel (110) in a proximal dose setting position, wherein the drive sleeve (30) is rotatably secured to the housing (20) in the proximal dose setting position by means of a ratchet member (32).

Abstract: The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicament, and to a respective drug delivery device, wherein the drive mechanism comprises: an elongated housing (30) extending in an axial direction (1, 2), a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in axial distal direction (1), a drive sleeve (60) extending in axial direction (1, 2) and being rotatably supported in the housing (30), a dose setting member (40) rotatably supported on a side wall portion (31) of the housing (30) and being rotatable with respect to an axis (41) extending in radial direction (r), wherein the drive sleeve (60) is operably releasable from the piston rod (80) and rotatably engageable with the dose setting member (40) for setting of the dose.

Abstract: The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the mechanism comprising: —a housing (20), —a piston rod (120) to operably engage with a piston (14) of a cartridge (12) for displacing the piston (14) in a distal direction (1), —a dose indicating member (40) with a dose size information (48) thereon, connected to a spring element (100) and being rotatable in a dose incrementing direction (5) against the action of the spring element (100) for setting of a dose, —a drive wheel (130) operably engaged with the piston rod (120) for displacing the piston rod (120) in distal direction (1) for dose dispensing, —wherein the dose indicating member (40) is engageable with the drive wheel (130) during dose dispensing to transfer a driving force to the drive wheel (130) when driven by the relaxing spring element (100) in a dose decrementing direction (6).

Abstract: The present invention relates to a drive mechanism for a drug delivery device and to a respective drug delivery device, wherein the drive mechanism comprises: —an elongated housing (20) extending in an axial direction (1, 2), an actuation member (30) rotatably supported on the housing (20) for setting of the dose, —a last dose sleeve (110) directly rotatably engaged with the actuation member (30) and having at least one stop (112, 114), a last dose member (120) threadedly engaged with the last dose sleeve (110), further being rotatably fixed to the housing (20) and being operable to engage with the at least one stop (112, 114) to limit a rotation of the last dose sleeve (110).

Abstract: The present invention relates to a drive mechanism of a drug delivery device for dispensing of a dose of a medicament, the mechanism comprising: an elongated housing (20) extending in an axial direction (1, 2), a piston rod (160) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in axial distal direction (1), a dose setting member (120; 220) rotatably arranged at a proximal end of the housing (20) for setting of a dose, a base member (60; 260) having a proximally extending shaft portion (61; 261) at least partially enclosed by the dose setting member (120; 220), a last dose limiting member (140; 240) radially disposed between the dose setting member (120; 220) and the base member (60; 260) and having at least one radial stop (143; 243a, 243b) to limit a rotational displacement of the dose setting member (120; 220) relative to the base member (60; 260), wherein the last dose limiting member (140; 240) is rotatably locked but axially displaceable to one of the base member (60

Abstract: Drive Mechanisnn of a Drug Delivery Device The present invention relates to a drive mechanism of a drug delivery device for dispensing of a dose of a medicament, the mechanism comprising: —a housing (30) extending in an axial direction (1, 2), —a piston rod (90) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in an axial distal direction (1), a last dose sleeve (100) rotatably supported in the housing (30) and being selectively engageable with a dose setting mechanism for setting of a dose, —a last dose member (105) threadedly engaged to the housing (30), rotatably locked to the last dose sleeve (100) and axially displaceable relative to the last dose sleeve (100).