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    • 10. 发明授权
    • Needle safety device with tortuous path
    • 针安全装置具有曲折路径
    • US07670318B2
    • 2010-03-02
    • US09920860
    • 2001-08-03
    • Daniel E. AlesiDavid R. MacLean
    • Daniel E. AlesiDavid R. MacLean
    • A61M5/00
    • A61M5/3216A61B5/15003A61B5/150328A61B5/150389A61B5/150473A61B5/150572A61B5/150671A61B5/150717A61B5/150732A61B5/154
    • A prepackaged safety needle device has fitted to a holder a double-ended needle assembly and a needle protection housing pivotally connected to the neck of the housing. The hub of the double-ended needle is mated to the neck of the holder. A circumferential sleeve extending from the neck of the holder envelops the hub so that when the needle that extends away from the holder is capped by a sheath, the lower portions of the sheath would coact with the sleeve to form a relatively tight fit. The configurations of the sleeve and the sheath with respect to the needle hub, at their respective interacting portions are such that a tortuous path is established which allows sterilizing gas to pass into the space capped by the sheath, but yet prevents bacteria or other contaminants from intruding into the space. The opening at the end of the holder away from the needle assembly is sealed by a porous cover that allows sterilizing gas to pass into the interior of the holder while acting as a barrier to prevent bacteria from entering into the holder. Thus, configured, the prepackaged device is a convenient to use device that remains sterile until use.
    • 预先包装的安全针装置已经装配到保持器上,双头针组件和枢轴连接到壳体的颈部的针保护壳体。 双头针的轮毂与保持架的颈部配合。 从保持器的颈部延伸的周向套筒包围轮毂,使得当远离保持器延伸的针被护套覆盖时,护套的下部将与套筒共同构成相对紧密的配合。 套筒和护套相对于针座在其各自的相互作用部分的构型使得建立了曲折的路径,其允许消毒气体进入由鞘覆盖的空间中,但是防止细菌或其它污染物 侵入空间。 保持器远离针组件的端部处的开口由多孔盖密封,多孔盖可以使消毒气体进入保持器的内部,同时作为屏障以防止细菌进入保持器。 因此,配置后,预先包装的装置是使用方便的使用装置,其保持无菌状态。