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    • 17. 发明申请
    • NEEDLE INSERTION AND RETRACTION MECHANISM
    • 针插入和回收机制
    • WO2018070978A1
    • 2018-04-19
    • PCT/US2016/056238
    • 2016-10-10
    • WEST PHARMA. SERVICES IL, LTD.WEST PHARMACEUTICAL SERVICES, INC.
    • CABIRI, OzHEZKIAHU, RanHAMMER, Tal
    • A61M5/142A61M5/145
    • A needle insertion and retraction mechanism for a drug delivery device, comprises a motion source, a user-operated control for the motion source, an interrupter for stopping motion of the motion source at a predetermined location and thereby dividing the motion into two parts which are continuous relative to each other. A motion translation mechanism connects the source of continuous motion to a needle, to extend the needle during the first motion part and to retract the needle during the second motion part. The needle is thus extended and retracted by continued operation of a single tension source rather than two tension sources operating in opposition to each other. The motion source may be a spring, and a winding mechanism may be provided to wind the spring. The second motion part may be initiated by pulling the adhered delivery device from the skin.
    • 用于药物输送装置的针插入和缩回机构包括运动源,用于运动源的用户操作控制器,用于停止运动源在预定位置处的运动的中断器 将运动分成彼此连续的两部分。 运动平移机构将连续运动源连接至针,以在第一运动部分期间延伸针并且在第二运动部分期间缩回针。 因此,通过单一张力源的持续操作而不是两个彼此相反操作的张力源来伸缩针。 运动源可以是弹簧,并且可以设置卷绕机构来卷绕弹簧。 第二运动部件可以通过从皮肤拉动粘附的输送装置来启动。