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    • 8. 发明授权
    • Automatic injection and retraction devices for use with pre-filled syringe cartridges
    • 自动注射和收缩装置,用于预充注射器药筒
    • US07988675B2
    • 2011-08-02
    • US11669452
    • 2007-01-31
    • Richard D. Gillespie, IIIDoug Owen Crow
    • Richard D. Gillespie, IIIDoug Owen Crow
    • A61M5/00
    • A61M5/2033A61M5/24A61M5/3204A61M5/46A61M2005/206A61M2005/2073A61M2005/2086A61M2005/2418
    • An automatic injection and retraction device having a longitudinal axis is provided that includes an injection assembly, a retraction assembly, and a pre-filled syringe cartridge. The injection assembly has an activation-prevention feature moveable between an on position and an off position. The retraction assembly has a needle guard that is removable in a direction along the longitudinal axis upon application of a removal force. The pre-filled syringe cartridge has a hypodermic needle with a needle sheath thereon. The retraction and injection assemblies are secured to one another so that the pre-filled syringe cartridge is in the retraction assembly with the needle sheath secured to the needle guard. The retraction and injection assemblies are configured so that, upon application of a twisting torque to the injection and retraction assemblies, the activation-prevention feature moves from the on position to the off position simultaneous with applying the removal force to the needle guard.
    • 提供具有纵向轴线的自动注射和收回装置,其包括注射组件,缩回组件和预填充的注射器药盒。 喷射组件具有可在打开位置和关闭位置之间移动的防启动特征。 退回组件具有针护罩,其在施加移除力时沿着纵向轴线方向可移除。 预填充的注射器药筒具有其上具有针护套的皮下注射针。 收缩和注射组件彼此固定,使得预填充的注射器药盒处于缩回组件中,针鞘固定到针头护套上。 缩回和注射组件被构造成使得当向注射和缩回组件施加扭转扭矩时,防止激活功能从打开位置移动到关闭位置,同时将去除力施加到针护罩。