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    • 3. 发明申请
    • DELAY MECHANISM FOR AUTOMATIC INJECTION DEVICE
    • 自动注射装置延时机构
    • WO2008112472A2
    • 2008-09-18
    • PCT/US2008/055892
    • 2008-03-05
    • ELI LILLY AND COMPANYJAMES, Adrian, BentonLISTER, Robert, IanSILBERSCHATZ, Paul, JosephMASON, Brian, Joseph
    • JAMES, Adrian, BentonLISTER, Robert, IanSILBERSCHATZ, Paul, JosephMASON, Brian, Joseph
    • A61M5/20
    • A61M5/2033A61M5/3202A61M5/3204A61M5/326A61M2005/206A61M2005/2073A61M2005/3143
    • A delay mechanism for staging the operation of an automatic injection apparatus to ensure medication contents are properly delivered prior to the needled syringe of the apparatus being retracted. In one form, the delay mechanism includes a shuttle, a follower, a locking member, a damping compound, and a driver and a driver biasing element. The shuttle is for a needled syringe of the apparatus and includes a first latching element. The follower includes a second latching element and a cammable surface, which second latching element is for cooperating with the first latching element to limit motion of the shuttle relative to the follower in a second direction opposite the first direction. The locking member is movable from a locking position to a release position by engagement with the syringe plunger during an injection, the locking member, when in the locking position, preventing rotation of the follower relative to the shuttle, the locking member, when in the release position, allowing rotation of the follower relative to the shuttle. The damping compound is between the follower and a supporting surface to dampen rotation of the follower relative to the shuttle. The driver is rotatably fixed relative to the shuttle and includes a camming surface. The driver biasing element is for forcing the driver from a first position to a second position when the locking member moves to the release position, whereby during movement of the driver to the second position, the driver camming surface engages the follower cammable surface to force the follower to rotate relative to the shuttle from a latching position, at which the first and second latching elements cooperate, to an unlatching position, at which the second latching element is disengaged from the first latching element to allow movement of the shuttle for retracting the syringe needle into the housing of the automatic injection apparatus after injection. X-17598
    • 用于分级自动注射装置的操作以确保药物内容物的延迟机构在装置的针刺注射器被收回之前被适当地递送。 在一种形式中,延迟机构包括梭子,从动件,锁定构件,阻尼构件以及驱动器和驱动器偏置元件。 梭子是针对该设备的针刺注射器,并且包括第一闭锁元件。 从动件包括第二闩锁元件和可视表面,该第二闩锁元件用于与第一闩锁元件配合,以在与第一方向相反的第二方向上限制梭相对于从动件的运动。 锁定构件可在注射期间通过与注射器柱塞的接合而从锁定位置移动到释放位置,当处于锁定位置时,锁定构件防止随动件相对于梭子的旋转,当处于锁定位置时 释放位置,允许从动件相对于梭子的旋转。 阻尼复合物在从动件和支撑表面之间,以阻尼从动件相对于梭的转动。 驱动器相对于梭子可旋转地固定并且包括凸轮表面。 当锁定构件移动到释放位置时,驾驶员偏置元件用于迫使驾驶员从第一位置到第二位置,由此在驾驶员移动到第二位置时,驾驶员凸轮表面接合随动可调表面以迫使驾驶员 随动件相对于梭子相对于第一和第二闩锁元件协作的闩锁位置旋转到解锁位置,第二闩锁元件与第一闩锁元件脱离第一闩锁元件,以允许梭子的移动以缩回注射器 针头注入注射器后进入自动注射装置的外壳。 X-17598