摘要:
The present invention is generally directed to a trigger mechanism for initiating dispensing doses of a medicament from a drug delivery device. The trigger mechanism comprises a trigger element (70) movable in a first direction relative to a counter element (10; 60b). To provide a feedback to a user of the trigger mechanism, the trigger element (70) comprises a first interference member (72) and the counter element (10; 60b) comprises a second interference member (61) which is located with respect to the first interference member (72) such that upon movement of the trigger element (70) relative to the counter element (10; 60b) the first interference member (72) contacts and passes over the second interference member (61), thereby generating an audible and/or tactile feedback. Further, the invention refers to a drug delivery device for selecting and dispensing a number of user variable doses of a medicament comprising such a trigger mechanism.
摘要:
An assembly (30) for a drug delivery device (1) is provided, the assembly (30) comprising an actuator (16) 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 (30) further comprises stop mechanism (40) acting after a maximum amount of a drug has been delivered, which is configured to axially constrain the setting movement of the actuator (16) such that the setting of a dose is inhibited, wherein a limited axial movement of the actuator (16) is allowed.
摘要:
The invention refers to a drug delivery device (1) with a piston rod (6) which extends along a longitudinal axis of the drug delivery device (1), wherein the piston rod (6) is adapted to apply an axial load in the distal direction to a cartridge bung (27) in order to dispense a medicament contained in the cartridge (25). In order to improve the convenience of the injection process and to mitigate the risk of underdosing due to a blocked needle a cartridge bung load indicator (40, 60, 70) is provided, located at the distal end of the piston rod (6) and adapted to abut against the cartridge bung (27), wherein the cartridge bung load indicator (40, 60, 70) comprises an indicator element (53, 62, 71) that audibly, tangibly and/or visually indicates a load state of the piston rod (6) to the user.
摘要:
A dose setting mechanism comprising a first element (60) and a second element (110); the first element (110) being moveable with respect to the second element (60); the first element (60) and the second element (110) being coupled by a ratchet mechanism (220) allowing motion of the first element (60) with respect to the second element (110) from a first position to a second position only in a first direction while preventing motion in a second direction that is opposite to the first direction; once passing the second position, the first element (60) being moveable with respect to the second element (60) in the first direction and in the second direction.
摘要:
The present invention concerns a mechanism for setting a dose of a medicament for a variable dose drug delivery device, comprising: a housing (10), a sleeve component (60) configured to rotate relative to the housing (10) during a dose setting operation, and a stop member (200) which is configured to limit a total amount of possible rotation of the sleeve component (60) to a maximum and, thereby, to limit a maximum settable dose, wherein the stop member (200) is configured to allow varying the maximum which determines the total amount of possible rotation of the sleeve component.
摘要:
The present invention is generally directed to a drug delivery device for selecting and dispensing a number of user variable doses of a medicament and to a non-numerical display for such a device. The display comprises a housing (10) with at least one window (11 a, 11 b, 11 c), a dosing element (60) movable relative to the housing (10) during dose setting and/or dose dispensing, and a movable indicator element (110) visible through the at least one window (11 a, 11 b, 11 c). The indicator element (110) is coupled to the dosing element (60) and/or to the housing such that it moves not proportional to the dosing element (60).