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    • 7. 发明申请
    • MEDICATION DELIVERY DEVICE
    • 药物递送装置
    • WO2011154481A1
    • 2011-12-15
    • PCT/EP2011/059565
    • 2011-06-09
    • SANOFI-AVENTIS DEUTSCHLAND GMBHSMITH, Christopher, JamesHEALD, MichaelBUTLER, Stephen, DavidHORLOCK, Mark, Philip
    • SMITH, Christopher, JamesHEALD, MichaelBUTLER, Stephen, DavidHORLOCK, Mark, Philip
    • A61M5/24A61M5/315
    • A61M5/24A61M5/31543A61M5/31555A61M5/31585
    • A medication delivery device (1) is provided which is switchable between an operational state and a resetting state and which comprises a housing (13) having a proximal end (8) and a distal end (7), a piston rod (12) being moveable in a distal direction with respect to the housing (13) for medication delivery, a conversion element (38) adapted to at least partially convert a rotational movement of the piston rod (12) into an axial movement of the piston rod (12), coupling means (39) prevented from rotational movement with respect to the housing (13) and adapted to engage with the conversion element (38) in the operational state, a drive assembly (3) comprising at least two drive assembly members and adapted for moving the piston rod (12) in the distal direction, and a resilient member (31) adapted to provide a force on the drive assembly (3) for engagement of the drive assembly members. In the operational state of the device (1) the coupling means (39) is engaged with the conversion element (38), the conversion element (38) thereby being prevented from rotation with respect to the housing (13). In the resetting state of the device (1) the coupling means (39) is disengaged from the conversion element (38) under force of the resilient member (31), the conversion element (38) thereby being allowed to rotate with respect to the housing (13) and thereby allowing a resetting of the device (1).
    • 提供了一种药物输送装置(1),其可在操作状态和复位状态之间切换,并且包括具有近端(8)和远端(7)的壳体(13),活塞杆(12) 相对于用于药物输送的壳体(13)在远端方向上可移动的转换元件(38)适于至少部分地将活塞杆(12)的旋转运动转换成活塞杆(12)的轴向运动, ,联接装置(39)防止相对于壳体(13)旋转运动并且适于在操作状态下与转换元件(38)接合;驱动组件(3),其包括至少两个驱动组件,并适于 沿远端方向移动活塞杆(12),以及适于在驱动组件(3)上提供力以用于驱动组件的接合的弹性构件(31)。 在装置(1)的操作状态下,联接装置(39)与转换元件(38)接合,从而防止转换元件(38)相对于壳体(13)旋转。 在装置(1)的复位状态下,联接装置(39)在弹性构件(31)的作用下与转换元件(38)脱离接合,转换元件(38)因此被允许相对于 壳体(13),从而允许装置(1)的复位。