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    • 7. 发明授权
    • Injection device
    • 注射装置
    • US07476217B2
    • 2009-01-13
    • US10513159
    • 2003-05-02
    • Jeffrey MartinMartin Lawrence Hughes
    • Jeffrey MartinMartin Lawrence Hughes
    • A61M5/00
    • A61M5/31511A61M5/2033A61M5/286A61M5/326A61M2005/206A61M2005/3143A61M2005/3152
    • An injection device is for use with a syringe having a bore extending from an end surface, a needle communicating with the bore through the end surface and a dispensing piston movable in the bore towards the end surface. The injection device includes a housing having an opening, a resilient member for biasing the syringe and needle inwardly of the housing, a drive element movable towards the one end so as to move the needle out of the opening against the bias of the resilient member, a delatch mechanism operable to release the syringe such that the needle moves inwardly of the housing, and a drive coupling. The drive coupling gradually reduces in length such that, after the drive element has moved the dispensing piston to the end surface, the drive element continues to move to the dispensing piston at the end surface.
    • 注射装置用于具有从端面延伸的孔的注射器,通过端表面与孔连通的针和可在孔中朝向端表面移动的分配活塞。 注射装置包括具有开口的壳体,用于将注射器和针向内偏压的弹性构件,可朝向一端移动的驱动元件,以克服弹性构件的偏压将针移出开口, 可操作以释放注射器使得针向壳体向内移动的脱钩机构和驱动联接器。 驱动联接器的长度逐渐减小,使得在驱动元件将分配活塞移动到端表面之后,驱动元件在端面处继续移动到分配活塞。