摘要:
The invention relates to a drug delivery device for selecting and dispensing a number of user variable doses of a medicament including a dose limiter for preventing the setting of a dose, which exceeds the amount of liquid left in a cartridge of the drug delivery device. The device comprises a housing (10, 20), a dose selector (140) for selecting a dose by rotation relative to the housing (10, 20), a dosing element (40, 130), and a releasable clutch (45, 143) for rotationally coupling the dosing element (40, 130) to the dose selector (140) during dose selecting and for rotationally decoupling the dosing element (40, 130) from the dose selector (140) during dose dispensing. The clutch comprises a male spline (45), a corresponding female spline (143) and a curved or inclined surface (142) which is orientated such that re-engagement of the clutch guides the male spline (45) into a predefined rotational orientation with respect to the female spline (143).
摘要:
A drive mechanism for a delivery device or a positioning mechanism comprising a rod (5), a rotatable cam member (9), and a follower member (6) being coupled to the cam member (9) in such a manner that a rotation of the cam member (9) is transferred to a reciprocating movement of the follower member (6) or a part thereof (7), the follower member (6) being coupled to the rod (5) via a ratchet mechanism (62, 64) in such a manner that the reciprocating movement of the follower member (6) or the part thereof (7) drives the rod (5).
摘要:
Provided is a medicament delivery device (100) comprising a tubular housing (110), having a proximal end (111) and an opposite distal end (112), an actuator means (119, 120), slidably and coaxially arranged inside the tubular housing (110) wherein is provided an inter-locking mechanism (119, 413) between the a cap (410) and the housing (110), enabling the cap (410) to freely spin, i.e. it is impossible to open the cap (410), until the medicament delivery device (100) has been properly activated by an activator means (160).
摘要:
The present invention relates to a handheld automatic injection device comprising a housing (10, 30, 40; 40′), a piston rod (80) located within the housing (10, 30, 40; 40′), a drive member (70) permanently coupled to the piston rod (80), a dose setting member (50), which during dose setting rotates relative to the housing (10, 30, 40; 40′) in a first direction and which during dose dispensing rotates relative to the housing (10, 30, 40; 40′) in a second opposite direction, and a power reservoir (100) for driving the drive member (70). The drive member (70) is axially movable between a dose setting position, in which the drive member (70) is rotationally constrained to the housing, and a dose dispensing position, in which the drive member (70) is rotationally decoupled from the housing (10, 30, 40; 40′). The power reservoir comprises a reverse wound flat spiral spring (100) having a first end attached to a first spool (101) and a second end attached to a second spool (102), with one of the spools (102) being coupled to the drive member (70).
摘要:
The present invention relates to a pen type drug delivery device having a dose setting limiter mechanism. The mechanism comprises a housing (10, 30, 40; 40′), a dose setting member (50), which during dose setting rotates relative to the housing (10, 30, 40; 40′) in a first direction and which during dose dispensing rotates relative to the housing (10, 30, 40; 40′) in a second opposite direction, and a limiting element (60) limiting the rotational movement of the dose setting member between a zero dose position and a maximum dose position. The limiting element (60) is rotationally constrained but axially displaceable relative to one of the housing (10, 30, 40; 40′) or the dose setting member (50) and is movable helically (53) relative to the other of the housing (10, 30, 40; 40′)or the dose setting member (50). These movements have end stops (54, 55) limiting the relative movement of the limiting element (60) and thus the dose setting member.
摘要:
The invention refers to an injection device comprising a housing (10; 410), a resilient member (90; 510) adapted to provide a force necessary for ejecting a dose from the injection device, and a dose setting member (80, 60) operatively connected to a dose indicator (120; 480) which is positioned within the housing (10; 410). The dose setting member (80, 60; 420, 440) and the dose indicator (120; 480) cooperate to set the dose to be ejected from the injection device. The dose indicator (120; 480), during dose setting, is adapted to undergo a mere rotational movement within the housing (10; 410) and relative to the housing (10; 410).
摘要:
The invention refers to an injection device comprising a housing (10) containing a cartridge (20) containing a medicament and a movable bung (21), wherein the housing (10) comprises an inner thread (17), a piston rod (30) for moving the bung (21) during dose dispensing, wherein the piston rod (30) comprises an outer thread (31) engaging the inner thread (17) of the housing (10) a bearing (33) at its end facing the bung (21), and a driver (40) coupled to the piston rod (30) for driving the piston rod (30) during dose dispensing. In the unused delivery state of the device, the bearing (33) abuts the bung (21). The invention further refers to an assembly method for such an injection device.
摘要:
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.
摘要:
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; 260) and the dose setting member (120; 220) and wherein the last dose limiting member (140; 240) is threadedly engaged with the other one of the base member (60; 260) and the dose setting member (120; 220).
摘要:
A drug delivery assembly comprises a drug delivery device, an electronic dose logging module releasably attachable to the drug delivery device, and a cap releasably attachable to the logging module to cover an outlet portion of a mounted drug reservoir. The logging module and the drug delivery device comprise mating snap coupling means. The logging module comprises locking means acting on the locking module snap coupling means, wherein the locking means is actuated from the unlocked to the locked state when the cap is attached to the logging module in a first direction, and the locking means is actuated from the locked to the unlocked state when the cap is detached from the logging module in a second direction opposed to the first direction.