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    • 9. 发明授权
    • Pre-filled safety vial injector
    • 预填充安全注射器
    • US07470258B2
    • 2008-12-30
    • US10099864
    • 2002-03-13
    • John M BarkerThor R. HalsethJoseph KovalskiRobert T. McWethyBernardo Challiol
    • John M BarkerThor R. HalsethJoseph KovalskiRobert T. McWethyBernardo Challiol
    • A61M5/32
    • A61M5/3234A61M5/2429A61M5/2448A61M2005/3235
    • A method and apparatus for injecting medicine from a pre-filled container into a patient through an injection needle. After use, the needle is automatically shielded to prevent inadvertent contact with the needle. The device operates by pumping medicine out of the vial and into a transfer chamber. The medicine is then expelled from the transfer chamber into a patient during an injection stroke. At the end of the injection stroke, the needle is released for retraction, and the spring retracts the needle for shielding. The device can include an injector assembly and a vial holder assembly. The injector assembly has a needle retainer for releasably retaining the needle in a projecting position against the bias of a spring. The vial holder assembly is attachable with the injector assembly and is operable to transfer fluid from the vial and into the transfer chamber for an injection.
    • 一种通过注射针将药物从预先填充的容器注入患者体内的方法和装置。 使用后,针头自动屏蔽,以防止与针头无意接触。 该装置通过将药物从小瓶中抽出并进入传送室来操作。 然后药物在注射冲程期间从转移室排出到患者体内。 在注射行程结束时,针头被释放用于缩回,弹簧缩回针头进行屏蔽。 该装置可以包括注射器组件和小瓶保持器组件。 注射器组件具有针保持器,用于将针可释放地保持在抵抗弹簧的偏压的突出位置。 小瓶保持器组件可与喷射器组件连接并且可操作以将流体从小瓶传送到传送室中用于注射。