Flashback Blood Collection Needle
    4.
    发明申请
    Flashback Blood Collection Needle 有权
    闪回采血针

    公开(公告)号:US20120330187A1

    公开(公告)日:2012-12-27

    申请号:US13606569

    申请日:2012-09-07

    IPC分类号: A61B5/153

    摘要: A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end, a flashback chamber, and a venting mechanism therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing so as to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle on withdrawal from the patient.

    摘要翻译: 针组件包括具有流体入口端的透明或半透明壳体,流体出口端,回流室和它们之间的排气机构。 基本上轴向对准的入口和出口插管从壳体延伸并与腔室连通。 可密封套筒覆盖出口插管的外端。 插管,腔室和套管的相对体积被选择以提供指示静脉入口的快速可靠闪回,其中内部通气口位于壳体内,以便将内部分成第一和第二腔室,第二腔室适于 在其中保持相对于外部环境的负压,以便在从患者撤出时抑制血液从针头泄漏。

    Flashback blood collection needle
    6.
    发明授权
    Flashback blood collection needle 有权
    闪回采血针

    公开(公告)号:US08585653B2

    公开(公告)日:2013-11-19

    申请号:US13606569

    申请日:2012-09-07

    IPC分类号: A61M5/178

    摘要: A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end, a flashback chamber, and a venting mechanism therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing so as to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle on withdrawal from the patient.

    摘要翻译: 针组件包括具有流体入口端的透明或半透明壳体,流体出口端,回流室和它们之间的排气机构。 基本上轴向对准的入口和出口插管从壳体延伸并与腔室连通。 可密封套筒覆盖出口插管的外端。 插管,腔室和套管的相对体积被选择以提供指示静脉入口的快速可靠闪回,其中内部通气口位于壳体内,以便将内部分成第一和第二腔室,第二腔室适于 在其中保持相对于外部环境的负压,以便在从患者撤出时抑制血液从针头泄漏。

    Flashback blood collection needle
    7.
    发明授权
    Flashback blood collection needle 有权
    闪回采血针

    公开(公告)号:US08282605B2

    公开(公告)日:2012-10-09

    申请号:US12824818

    申请日:2010-06-28

    IPC分类号: A61M5/178

    摘要: A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end, a flashback chamber, and a venting mechanism therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing so as to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle on withdrawal from the patient.

    摘要翻译: 针组件包括具有流体入口端的透明或半透明壳体,流体出口端,回流室和它们之间的排气机构。 基本上轴向对准的入口和出口插管从壳体延伸并与腔室连通。 可密封套筒覆盖出口插管的外端。 插管,腔室和套管的相对体积被选择以提供指示静脉入口的快速可靠闪回,其中内部通气口位于壳体内,以便将内部分成第一和第二腔室,第二腔室适于 在其中保持相对于外部环境的负压,以便在从患者撤出时抑制血液从针头泄漏。

    Flashback blood collection needle
    10.
    发明授权
    Flashback blood collection needle 有权
    闪回采血针

    公开(公告)号:US08795198B2

    公开(公告)日:2014-08-05

    申请号:US12206273

    申请日:2008-09-08

    IPC分类号: A61B5/00 B65D81/00 A61B5/15

    摘要: A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end, a flashback chamber, and a venting mechanism therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing so as to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle on withdrawal from the patient.

    摘要翻译: 针组件包括具有流体入口端的透明或半透明壳体,流体出口端,回流室和它们之间的排气机构。 基本上轴向对准的入口和出口插管从壳体延伸并与腔室连通。 可密封套筒覆盖出口插管的外端。 插管,腔室和套管的相对体积被选择以提供指示静脉入口的快速可靠闪回,其中内部通气口位于壳体内,以便将内部分成第一和第二腔室,第二腔室适于 在其中保持相对于外部环境的负压,以便在从患者撤出时抑制血液从针头泄漏。