摘要:
A drive member for driving a piston rod in a drug delivery device is provided. The drive member is configured to be driven in a rotational movement by an actuating member. The drive member comprises a track for transmitting a driving load from the actuating member to the drive member. The track comprises both sections running in a distal and sections running in a proximal direction of the drive member. Moreover, a drug delivery device comprising such a drive member is provided.
摘要:
An assembly of a drug delivery device with a longitudinal axis (L) is given, comprising a body (1) with a proximal end (2) and a distal end (3). The drug delivery device further comprises a drive assembly and a first button member (4). The drive assembly is at least partially arranged within the body (1) and is adapted to facilitate dispense of a medicinal product. The first button member (4) acts on the drive assembly to prepare the drug delivery device for dispensing the medicinal product. The first button member (4) is adapted to be detachable from the body (1) after the preparation of the drug delivery device is completed.
摘要:
An assembly of a drug delivery device comprises a body (10) having a distal end (11) and a proximal end (12), a drive assembly (4) arranged substantially within the body (10) to facilitate dispense of a medicinal product and a button member (5) arranged at the proximal end (12) of the body (10) and adapted to act upon the drive assembly (4). The drive assembly (4) has an initial pre-ready state, a transient state and a ready state; in the pre-ready and transient states the button member (5) is twistable with respect to the body (10) to act upon the drive assembly (4) and wherein in the ready state the button member (5) is axially moveable but not substantially twistable with respect to the body (10) to act upon the drive assembly (4) to dispense a dose of the medicinal product.
摘要:
A drive member for driving a piston rod in a drug delivery device is provided. The drive member is configured to be driven in a rotational movement by an actuating member. The drive member comprises a track for transmitting a driving load from the actuating member to the drive member. The track comprises both sections running in a distal and sections running in a proximal direction of the drive member. Moreover, a drug delivery device comprising such a drive member is provided.
摘要:
A first input member and a second input member are arranged along a first axis and coupled in such a manner that a movement of the first input member along the first axis is converted into a rotational movement of the second input member with respect to the body . A first output member and a second output member are arranged along a second axis and coupled in such a manner that a rotational movement of the first output member is converted into a movement of the second output member along the second axis with respect to the body. The second input member and the first output member are releasably rotationally coupled.
摘要:
A drug delivery device comprising: a device body, an operating member which is configured to be movable relative to the device body for operating the drug delivery device, a preventing member which prevents movement of the operating member relative to the device body for operating the drug delivery device, wherein the preventing member is removable to allow movement of the operating member relative to the device body for operating the drug delivery device.
摘要:
A first input member (6) and a second input member (7) are arranged along a first axis (4) and coupled in such a manner that a movement of the first input member along the first axis is converted into a rotational movement of the second input member with respect to the body (1). A first output member (8) and a second output member (9) are arranged along a second axis (5) and coupled in such a manner that a rotational movement of the first output member is converted into a movement of the second output member along the second axis with respect to the body. The second input member and the first output member are releasably rotationally coupled.
摘要:
According to one aspect, a resettable drive assembly for a drug delivery device is provided for. The resettable drive assembly may comprise a housing having a proximal end and a distal end, a piston rod being rotatable with respect to the housing and being axially displaceable with respect to the housing between a proximal start position and a distal end position, a drive member for distally displacing the piston rod towards the end position when dispensing a dose, and a stop member. The drive assembly may be configured such that the drive member is operable to interact with the piston rod for forming an unlockable first interlock, the first interlock being operable to block proximal movement of the piston rod with respect to the drive member. The drive assembly may be configured such that the stop member is operable to interact with the piston rod for forming an unlockable second interlock, the second interlock being operable to block proximal movement of the piston rod with respect to the housing. The drive assembly may be configured such that, when the drive assembly is in a drive mode, the first and second interlocks are locked such that proximal movement of the piston rod from the end position to the start position is prevented by the first interlock and the second interlock. The drive assembly may be configured such that, for switching the drive assembly from the drive mode to a reset mode, the piston rod is rotatable with respect to the drive member for unlocking the first interlock and the stop member and the piston rod are rotatable with respect to each other for unlocking the second interlock. The drive assembly may be configured such that, when the drive assembly is in the reset mode, the first interlock and the second interlock are unlocked such that proximal movement of the piston rod to the start position is allowed. Further, a drug delivery device and a use of a spring are provided for.
摘要:
A resettable drive assembly for a drug delivery device (1) is provided. The drive assembly comprises a drive unit (3) for driving a piston rod (5) in a dispense operation of the device (1). The drive unit (3) comprises a first drive member (35), a second drive member (37) and locking means preventing a relative rotational movement of the first (35) and the second drive member (37) during a dispense operation and allowing a relative rotational movement for enabling a resetting of the device (1). Moreover, a drug delivery device (1) comprising a resettable drive assembly is provided.
摘要:
According to one aspect, a drive assembly for a drug delivery device is provided for. The drive assembly may comprise a housing (10A, 10B, 10C) having a proximal end (100P) and a distal end (100D), a piston rod (20) being axially displaceable and rotatable with respect to the housing (10A, 10B, 10C) between a first angular position and a second angular position, a drive member (30) being axially displaceable, and a rotational bias member (50) being operable to transfer a resilient bias to the piston rod (20). The drive assembly may be configured such that, for setting a dose, the drive member (30) is proximally axially displaceable with respect to the housing (10A, 10B, 10C) and the piston rod (20) from a rest position to a dose set position. When setting the dose, the piston rod (20) may be rotated in a first rotational direction and, subsequent to the rotation in the first rotational direction, rotated in a second rotational direction with respect to the housing and the drive member. For setting the dose, the drive member (30) may interact with the piston rod (20) to convert proximal axial movement of the drive member (30) with respect to the housing (10A, 10B, 10C) into rotational movement of the piston rod (20) in the first rotational direction towards the second angular position against the resilient bias and the rotational bias member (50) may interact with the piston rod (20) such that the piston rod (20) is rotated in the second rotational direction towards the first angular position with respect to the drive member (30) and the housing (10A, 10B, 10C) by means of the resilient bias. Further, a piston rod (20) and a use of a spring (80) are provided for.