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    • 7. 发明授权
    • Self retracting needle apparatus and method for phlebotomy
    • 自动收缩针装置和静脉切开术的方法
    • US06063040A
    • 2000-05-16
    • US8036
    • 1998-01-16
    • Charles V. OwenDavid L. ThorneGale H. ThorneRoy L. Barrus
    • Charles V. OwenDavid L. ThorneGale H. ThorneRoy L. Barrus
    • A61B5/15A61M5/31A61M5/32A61B5/00
    • A61B5/150656A61B5/15003A61B5/150389A61B5/150519A61B5/150717A61B5/150732A61B5/150908A61B5/1545A61M2005/3104A61M2005/3227A61M2005/3242A61M5/3232
    • A practical, low cost safety device for phlebotomy. Preparation for operation of the device involves elongating an otherwise shortened-for-transport apparatus to extend a medical assembly and needle from a housing for use in a medical procedure. The act of elongating energizes an energy storing component and cocks a releasable latch. The energy storing component is preferably a vacuum drawing plunger and tube combination. When the medical procedure is complete, distortion of a portion of the housing causes powered retraction of the needle. After retraction, the needle is fully contained, permitting the device to be laid aside without fear of an inadvertent needle stick. The housing comprises a proximal barrel and a distal needle containment section. The barrel comprises a sampling tube stopper piercing cannula. The distal section is disposed in-line, but off-axis from the barrel and comprises an enclosed conduit which communicates with the cannula and with a pathway to the medical needle through the medical needle assembly. Construction of the device requires only three injection molded parts, the housing, a needle hub and a needle cover. Further, as the needle is retracted, communication from the conduit is severed and the pathway to the needle is closed to reduce likelihood of blood spatter. The conduit may be used as a blood flash visualization chamber.
    • 一种实用,低成本的静脉注射安全装置。 用于装置的操作的准备包括延长另一种缩短的运输装置以将医疗组件和针从壳体延伸以用于医疗过程。 伸长的动作激励储能部件并使可释放的闩锁旋转。 储能部件优选为真空拉拔柱塞和管组合。 当医疗程序完成时,壳体的一部分的变形导致针的电力回缩。 收回后,针头完全收纳,允许将装置放在一边,而不用担心无意的针刺。 外壳包括近端针筒和远端针头容纳部分。 枪管包括一个取样管塞刺穿套管。 远端部分成直线设置,但是离开筒体离轴,并且包括与套管连通并且通过医疗针组件到医疗针的通路的封闭导管。 该装置的构造仅需要三个注射成型部件,壳体,针座和针头盖。 此外,当针回缩时,来自导管的连通被切断,并且到针的路径被关闭以减少飞溅的可能性。 导管可以用作血液闪光可视化室。