摘要:
The autoinjector (1) includes: a housing (2) extending along a longitudinal axis A; a needle cover (5) coupled to and axially movable with respect to said housing (2) between a first extended position, a retracted position, and a second extended position in which the needle cover (5) moves back in the distal direction to shield an injection needle; a plunger rod (4) axially movable inside the housing (2) between a storage position and an injection end position; a retainer (8), movable with respect to the plunger rod (4) between a blocking position, in which the retainer (8) blocks the plunger rod (4) in the storage position, and a release position, in which the retainer (8) is moved away from the plunger rod (4) to allow axial displacement of the plunger rod (4) from the storage to the injection end position; a locker (9), movable with respect to the retainer (8) between a locking position, in which the locker (9) locks the retainer (8) in the blocking position, and a release position, in which the locker (9) allows movement of the retainer (8) to the release position, movement of the locker (9) from the locking position to the release position being caused by the needle cover (5) moving from the first extended position to the retracted position; and a controller (7), movable with respect to the housing (2), between a storage position which the controller (7) prevents activation of the autoinjector (1) and an activated position allowing for activation of the autoinjector (1), said controller (7) including a grasping member (73) configured for allowing a user to move the controller (7) from the storage position to the activated position. The locker (9) is connected to the controller (7) such that movement of the controller (7) with respect to the housing (2) between the storage and activated position entails movement of the locker (9) with respect to the housing (2) between a corresponding storage and an activated position. The locker (9) includes a blocking member (96) configured for abutting against a stop (281) of the housing (2) as long as the locker (9) is in the storage position, and the blocking member (96) of the locker (9) is moved away from said stop (281) of the housing (2) when the locker (9) is moved to the activated position.
摘要:
The present disclosure relates to a drug delivery device (10), in particular pen-type injectors, wherein a number or pre-set doses can be administered. In particular, the present disclosure relates to such drug delivery devices, where a user may activate the dose injection process and wherein the user is still able to control the dose injection process even after a dose injection process has been activated. The process of injecting a dose is supported by some kind of energy storing means (22) as well as by a force to be exerted by a user. Moreover, the disclosure characterizes by a reduced amount of mechanical components.
摘要:
A medicament delivery device configured to provide a variable single dose of medicament is disclosed. The medicament delivery device includes a main body and a syringe arranged in the main body, where the syringe comprises a medicament. The medicament delivery device further includes a delivery member shield unit slidably arranged in the main body and a removable cap releasably coupled to the delivery member shield unit. The medicament delivery device also includes a dose knob configured to rotate with respect to the main body for setting a dose of the medicament. Prior to a dose of the medicament being set, the delivery member shield unit and the removable cap are axially locked with respect to the main body. Further, after a dose of the medicament is set, the delivery member shield unit and the removable cap are axially moveable with respect to the main body.
摘要:
The present disclosure relates to a drug delivery device having a case adapted to retain a medicament container, a plunger disposed within the case and slidable from a proximal position into a distal position for delivering a medicament from the medicament container, and at least one feedback mechanism that is in operative connection with the plunger. The feedback mechanism includes a collar, a needle shroud, and a control spring biasing the needle shroud in a distal direction relative to the collar. The collar is operatively coupled to the case in an axial direction and prevented from axially decoupling from the case by the plunger when in the proximal position. The plunger, during movement from the proximal position towards the distal position, allows axial decoupling of the collar from the case driven by the control spring until the collar's movement is halted, which creates an audible and/or tactile feedback.
摘要:
A resettable drive mechanism for a medication delivery device comprises a housing (13,17,40), a drive member (20) rotatable with respect to the housing in a second direction for delivering a dose of a medication, a piston rod (12) adapted to be driven in a distal direction with respect to the housing by the drive member, when the drive member rotates in the second direction, a stop member (26) adapted to prevent rotation of the drive member in a first direction opposite to the second direction with respect to the housing, when the stop member engages the drive member, and a clutch member (58) movable with respect to the housing between a delivery position and a reset position, wherein, when the clutch member is in the delivery position, the stop member and the drive member are engaged and the drive member is prevented from rotating in the first direction with respect to the housing, and when the clutch member is in the reset position, the drive member and the stop member are disengaged, the drive member is rotatable in the first direction with respect to the housing and the piston rod is movable in the proximal direction with respect to the housing.
摘要:
In a piston for a syringe, in particular an injection syringe, which has a hollow body receiving the piston, comprising a piston head for fluid-tight delimitation of a liquid chamber of the syringe, and a piston rod firmly connected to the piston head and having an actuation portion on which the piston can be actuated for insertion into the hollow body, wherein the piston rod is formed by a plurality of axial webs which extend in the longitudinal direction and which have a radial axial extent outwards from the longitudinal axis and open radially into a common intersection portion receiving the longitudinal axis, wherein at least one free excitation edge protruding radially beyond the radial axial extent is provided on the piston rod, which excitation edge can be brought into engagement with an oscillation exciter of the hollow body upon insertion of the piston, in such a way that an acoustic signal is emitted, provision is made that an oscillation arm body arranged between two axial webs couples the excitation edge to the intersection portion in such a way that, in the event of oscillatory excitation in the axial direction, the oscillation arm body has a radial oscillation arm length, between the excitation edge and the intersection portion, of at least 40% of the radial axial extent.