Drive mechanism for a drug delivery device

    公开(公告)号:US10376645B2

    公开(公告)日:2019-08-13

    申请号:US14770848

    申请日:2014-03-10

    IPC分类号: A61M5/31 A61M5/315

    摘要: The present disclosure concerns a drive mechanism for a drug delivery device, having a first and a second state and comprising a piston rod configured to be moved in a distal direction when the drive mechanism is operated and an adjusting member, wherein the adjusting member is rotatable relative to a body of the drug delivery device in the first state of the drive mechanism and is prevented from rotating relative to the body in the second state of the drive mechanism, and wherein the adjusting member is configured to adjust an axial position of the piston rod in the first state of the drive mechanism.

    Drug delivery device and method for eliminating a clearance of the piston rod for drug delivery devices

    公开(公告)号:US10195358B2

    公开(公告)日:2019-02-05

    申请号:US14773326

    申请日:2014-03-10

    摘要: The piston rod arrangement is in an assembled state before use and comprises a piston rod, a bung, which is intended to be driven by the piston rod, a body member, and a drive member. 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 and corresponding unit steps of movement of the piston rod. 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.

    DRIVE MECHANISM FOR A DRUG DELIVERY DEVICE
    6.
    发明申请
    DRIVE MECHANISM FOR A DRUG DELIVERY DEVICE 审中-公开
    用于药物递送装置的驱动机构

    公开(公告)号:US20160008548A1

    公开(公告)日:2016-01-14

    申请号:US14770848

    申请日:2014-03-10

    IPC分类号: A61M5/31 A61M5/315

    摘要: The present disclosure concerns a drive mechanism for a drug delivery device, having a first and a second state and comprising a piston rod configured to be moved in a distal direction when the drive mechanism is operated and an adjusting member, wherein the adjusting member is rotatable relative to a body of the drug delivery device in the first state of the drive mechanism and is prevented from rotating relative to the body in the second state of the drive mechanism, and wherein the adjusting member is configured to adjust an axial position of the piston rod in the first state of the drive mechanism.

    摘要翻译: 本公开涉及一种用于药物输送装置的驱动机构,具有第一和第二状态,并且包括当驱动机构被操作时构造成在远侧方向上移动的活塞杆和调节构件,其中调节构件可旋转 相对于处于驱动机构的第一状态的药物输送装置的主体,并且在驱动机构的第二状态下防止相对于主体旋转,并且其中调节构件被配置为调节活塞的轴向位置 杆处于驱动机构的第一状态。

    Assembly for a drug delivery device and drug delivery device with such an assembly

    公开(公告)号:US11013863B2

    公开(公告)日:2021-05-25

    申请号:US16126763

    申请日:2018-09-10

    IPC分类号: A61M5/31 A61M5/315

    摘要: The present disclosure pertains to an assembly for a drug delivery device having a housing part, a piston rod displaceable relative to the housing part, a first sleeve member and a second sleeve member. First and second sleeve members are coupled to the housing part. In an initial state of the assembly the first sleeve member is movable from an initial position to a second position relative to the second sleeve member which allows the piston rod to axially travel from an initial position to a predetermined second position such that the assembly is in a primed state. Moreover, in the primed state of the assembly, with the first sleeve member being in the second position relative to the second sleeve member, first and second sleeve members are permanently rotationally and axially locked to each other by a first engagement feature such that first and second sleeve members together form a sleeve.

    Assembly for a Drug Delivery Device and Drug Delivery Device with Such an Assembly

    公开(公告)号:US20190001066A1

    公开(公告)日:2019-01-03

    申请号:US16126763

    申请日:2018-09-10

    IPC分类号: A61M5/31 A61M5/315

    摘要: The present disclosure pertains to an assembly for a drug delivery device having a housing part, a piston rod displaceable relative to the housing part, a first sleeve member and a second sleeve member. First and second sleeve members are coupled to the housing part. In an initial state of the assembly the first sleeve member is movable from an initial position to a second position relative to the second sleeve member which allows the piston rod to axially travel from an initial position to a predetermined second position such that the assembly is in a primed state. Moreover, in the primed state of the assembly, with the first sleeve member being in the second position relative to the second sleeve member, first and second sleeve members are permanently rotationally and axially locked to each other by a first engagement feature such that first and second sleeve members together form a sleeve.

    Assembly for a drug delivery device and drug delivery device with such an assembly

    公开(公告)号:US10099014B2

    公开(公告)日:2018-10-16

    申请号:US14770847

    申请日:2014-03-10

    IPC分类号: A61M5/31 A61M5/315

    摘要: The present disclosure pertains to an assembly for a drug delivery device having a housing part, a piston rod displaceable relative to the housing part, a first sleeve member and a second sleeve member. First and second sleeve members are coupled to the housing part. In an initial state of the assembly the first sleeve member is movable from an initial position to a second position relative to the second sleeve member which allows the piston rod to axially travel from an initial position to a predetermined second position such that the assembly is in a primed state. Moreover, in the primed state of the assembly, with the first sleeve member being in the second position relative to the second sleeve member, first and second sleeve members are permanently rotationally and axially locked to each other by a first engagement feature such that first and second sleeve members together form a sleeve.