摘要:
An assembly for a drug delivery device (1) is provided, the assembly (60) comprising an actuator (5) which is configured to be operated in order to dispense a dose of medication and a feedback feature (2) being configured to give a feedback signal to a user at the end of a dwell period after the actuator (5) has reached an end position.
摘要:
The present invention is generally directed to an assembly for a drug delivery device comprising a first threaded member (50, 50'), a second threaded member (40, 60') with a longitudinal axis and a thread (61), having at least two consecutive portions (62, 63, 64) with different leads. The first threaded member (50, 50') and the second threaded member (40, 60') are adapted and arranged to rotate with respect to one another about the longitudinal axis of the second threaded member (40, 60') during dose setting operation of the assembly, the first threaded member (50, 50') thereby being axially displaced along the second threaded member (40, 60') from a start position to an end position with respect to the second threaded member (40, 60') due to the mechanical cooperation of the first threaded member (50, 50') with the thread (61). According to the invention, a fast portion (62, 64) of the thread (61), having a greater lead than a slow portion (63) of the thread (61), comprises a multi-start thread and the slow portion (63) comprises less starts than the fast portion (62, 64). The invention is further directed to a drug delivery device for setting and dispensing a number of user variable doses of a medicament comprising such an assembly.
摘要:
An assembly for a drug delivery device is provided, the assembly comprising at least one feedback feature. The feedback feature is configured to indicate the end of a dispense operation to a user by giving an audible and/or tactile feedback.
摘要:
The piston rod arrangement is in an assembled state before use and comprises a piston rod (1 ), a bung (2), which is intended to be driven by the piston rod, a body member (5), and a drive member (6). The piston rod is threadedly engaged with the body member, and the drive member is threadedly engaged with the piston rod and movable relative to the body member. A mechanism is provided defining unit steps of movement of the drive member (6) and corresponding unit steps of movement of the piston rod (1 ). The piston rod is arranged in contact with the bung or at a distance from the bung that is less than a distance of one corresponding unit step of movement. When the piston rod, the bung and the drive member are assembled in the body member, the piston rod is advanced with respect to the body member towards the bung, until the piston rod is stopped by the bung. The drive member is rotated until the piston rod begins to advance again and the drive member is then stopped, and the piston rod is fixed at or near the position obtained.
摘要:
An assembly (60) for a drug delivery device (1) is provided, the assembly comprising a feedback feature (2). The feedback feature (2) is configured to indicate an end of the dispense operation to a user by giving an audible and/or tactile feedback.