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    AUTO-INJECTION DEVICE WITH NEEDLE PROTECTING CAP HAVING OUTER AND INNER SLEEVES
    2.
    发明申请
    AUTO-INJECTION DEVICE WITH NEEDLE PROTECTING CAP HAVING OUTER AND INNER SLEEVES 审中-公开
    自动注射装置，具有内外保护盖

    公开(公告)号：US20110098656A1

    公开(公告)日：2011-04-28

    申请号：US10578807

    申请日：2004-05-28

    申请人： Rosie L. Burnell ,  David M. Johnston

    发明人： Rosie L. Burnell ,  David M. Johnston

    IPC分类号： A61M5/32

    CPC分类号： A61M5/2033 ,  A61M5/3202 ,  A61M5/3204 ,  A61M5/326 ,  A61M2005/2013 ,  A61M2005/206 ,  A61M2005/208 ,  A61M2005/3109 ,  A61M2005/312 ,  A61M2005/3215

    摘要： An injection device 110 is described having a housing 112 that receives a syringe 114 having a sealed boot 123 that covers its needle 118. The syringe 114 is biased by a return spring 126 from an extended position in which the needle 118 extends from the housing 112 through an exit aperture 128 to a retracted position in which it does not. A drive spring 130 acts via a drive to advance the syringe 114 from its retracted position to its extended position and discharge its contents through the needle 118 and a return spring 126, brought into play when the drive has reached a nominal return position, restores the syringe 114 to its retracted position. A releasable locking mechanism retains the syringe 114 in its retracted position. A sleeve 119 projects from the exit aperture 128 and can be depressed to release the locking mechanism. A removable threaded cap 111 closes the housing 112, covers the exit aperture 128 and the sleeve 119, thus preventing the locking mechanism from being released, and engages the boot 123 on the syringe 114. When the cap 111 is removed, it takes the boot 123 with it, no longer closes the exit aperture 128 and no longer prevents the locking mechanism from being released. Then, the locking mechanism can be released and the injection cycle begun.

    摘要翻译： 注射装置110被描述为具有容纳具有覆盖其针118的密封套123的注射器114的壳体112.注射器114由复位弹簧126从其中针118从壳体112延伸的延伸位置偏置 通过出口孔128到达未退出位置。 驱动弹簧130通过驱动器作用，以将注射器114从其缩回位置推进到其延伸位置，并且通过针头118将其内容物排出，并且当驱动器达到标称返回位置时使复原弹簧126起作用，恢复弹簧 注射器114到其缩回位置。 可释放的锁定机构将注射器114保持在其缩回位置。 套筒119从出口孔128突出并且可被按压以释放锁定机构。 可拆卸的螺纹盖111关闭壳体112，覆盖出口孔128和套筒119，从而防止锁定机构被释放，并且与针筒114上的护罩123接合。当帽111被移除时，它需要靴子 123，不再关闭出口孔128，并且不再防止锁定机构被释放。 然后，可以释放锁定机构并开始注射循环。