摘要:
The present invention relates to an assembly forming a piston rod for advancing a cartridge bung in a drug delivery device, the assembly comprising a first member and a second member wherein in a first state, the first and the second member are moveable with respect to each other to adjust the length of the piston rod and wherein in a second state the first member is locked in position with respect to the second member in order to define a fixed length of the piston rod. Furthermore, it relates to a drug delivery device comprising the assembly and to a method for assembling such a drug delivery device.
摘要:
The present invention relates to drug delivery devices. The drug delivery device according to the invention includes a housing with a needle holder suitable for attaching a needle unit to the housing at the distal end, and a cap being capable of covering the distal end of the drug delivery device and comprising a retaining member capable of securing the cap by engaging with the housing, the retaining member is prevented from engaging with the housing with the needle unit being attached to the needle holder. Furthermore, using a cap for covering the distal end of the drug delivery device is disclosed.
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 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 method and system for priming a drug delivery device are provided. The drug delivery device includes a dose dial sleeve and an internal housing portion. The dose dial sleeve is coupled to the internal housing. The dose dial sleeve rotates on a substantially circumferential rotational path during priming of the drug delivery device. Further, the dose dial sleeve rotates on a helical path during dose setting of the drug delivery device.
摘要:
The present invention relates to injectors, such as pen-type injectors, that provide for administration of medicinal products from a multidose-cartridge and permit a user to set the delivery dose. The injector may include a housing, a piston rod adapted to operate through the housing, a dose dial sleeve located between the housing and the piston rod, and a drive sleeve located between the dose dial sleeve and the piston rod. The dose dial sleeve may have a helical thread of first lead and the drive sleeve may have a helical groove of second lead. The first lead of the helical thread and the second lead of the helical groove may be the same.
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 drug delivery device (4) for dispensing one or more doses of a drug is provided. The device (4) comprises a drive member (1) for driving a piston rod (5) and a dose member (46) for actuating the drive member (1). The piston rod (5) is coupled to the drive member (1) such that a relative translational movement of the drive member (1) and the piston rod (5) is allowed and a relative rotational movement is prevented. The drive member (1) is configured to be driven by the dose member (46) around the longitudinal axis in a first (110) and a second rotational direction (111) opposite to each other. Furthermore, a drug delivery device (4) is provided, wherein the drive member (1) has stable and unstable states and wherein in an unstable state the drive member (1) is biased by biasing means (3) towards a stable state.
摘要:
A lead screw (5) with a screw thread (6) is arranged in a body (1) along an axis (4) and coupled to a lead screw nut (7) with a drive feature (8), so that the lead screw is helically rotatable in the lead screw nut. The lead screw and the lead screw nut are provided with stop features (9) interfering with a rotation of the lead screw in the lead screw nut when a force is applied to the lead screw in an axial direction. The lead screw nut has a surface area facing a guide feature (10) of the body. This surface area has a slope (12) varying around the axis. The assembly interacts such that the lead screw nut rotates in one rotational direction when a force is applied to the lead screw in the axial direction.
摘要:
A lead screw (5) with a screw thread (6) is arranged in a body (1) along an axis (4) and coupled to a lead screw nut (7) with a drive feature (8), so that the lead screw is helically rotatable in the lead screw nut. The lead screw and the lead screw nut are provided with stop features (9) interfering with a rotation of the lead screw in the lead screw nut when a force is applied to the lead screw in an axial direction. The lead screw nut has a surface area facing a guide feature (10) of the body. This surface area has a slope (12) varying around the axis. The assembly interacts such that the lead screw nut rotates in one rotational direction when a force is applied to the lead screw in the axial direction.