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    • 2. 发明授权
    • Needle assembly
    • 针组装
    • US06926700B2
    • 2005-08-09
    • US10391832
    • 2003-03-19
    • Peter W. BresslerJohn ColemanMathieu Turpault
    • Peter W. BresslerJohn ColemanMathieu Turpault
    • A61B5/15A61M5/32A61M25/06A61M5/00
    • A61M25/0625A61B5/15003A61B5/150389A61B5/150503A61B5/150656A61B5/15074A61B5/153A61M5/3269A61M2005/325
    • The present invention is directed to a shieldable blood collection set and a needle assembly. The needle assembly includes a needle cannula having a puncture tip at a distal end, and a needle retraction mechanism including a hub portion at a proximal end which supports the needle cannula, a shield portion at a distal end, and an extendable member hingedly connected therebetween. The hub portion includes a lateral hub extension extending toward a distal end of the needle cannula, and the shield portion includes a lateral shield extension extending toward a proximal end of said needle cannula. Opposing lateral forces applied against the extendable member and an opposing lateral side of the needle retraction mechanism cause relative axial movement between the hub portion and the shield portion between a first sampling state with the puncture exposed, and a second shielded state with the puncture tip contained within the shield portion.
    • 本发明涉及一种可屏蔽血液采集装置和针组件。 针组件包括在远端具有穿刺末端的针套管,以及针回缩机构,其包括在支撑针管的近端处的毂部分,在远端处的屏蔽部分和铰链地连接在其上的可延伸部件 。 所述轮毂部分包括向所述针插管的远端延伸的侧向轮毂延伸部分,并且所述屏蔽部分包括朝向所述针插管的近端延伸的侧面屏蔽延伸部。 施加在可延伸构件上的相对的侧向力和针回缩机构的相对的侧面在引起暴露的穿刺的第一取样状态和包含穿刺尖端的第二屏蔽状态之间引起毂部与屏蔽部之间的相对轴向运动 在屏蔽部分内。