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    Needle shield assembly having a single-use cannula lock
    3.
    发明授权
    Needle shield assembly having a single-use cannula lock 失效
    针罩组件具有一次性插管锁

    公开(公告)号：US5681295A

    公开(公告)日：1997-10-28

    申请号：US675751

    申请日：1996-07-03

    申请人： Sandor Gyure ,  Tracy R. Hottovy ,  Alex S. Wallace ,  Jay E. Booth ,  Bronwen Walters ,  Marian Gravel

    发明人： Sandor Gyure ,  Tracy R. Hottovy ,  Alex S. Wallace ,  Jay E. Booth ,  Bronwen Walters ,  Marian Gravel

    IPC分类号： A61M5/32 ,  A61M5/00

    CPC分类号： A61M5/3216 ,  A61M5/3202

    摘要： A needle shield assembly having a single-use cannula lock of the present invention includes a needle cannula having a proximal end, a distal end and a lumen therethrough. A hub includes a proximal end for connection to a fluid transfer device and a distal end connected to the proximal end of the needle cannula. A collar is rotationally connected to the hub so that the collar can be rotated around the hub. An elongate needle cover removably engages the hub and covers the needle cannula. An elongate needle shield having a proximal end and a distal end is hingedly connected, through its proximal end, to the collar. The needle shield includes two sidewalls defining a longitudinal opening and a back wall between said side walls defining a recess having an interior surface. The needle shield is capable of pivoting from an open position wherein the needle cannula is exposed, to a closed needle protecting position wherein at least part of the needle cannula is within the longitudinal opening of the needle shield. The needle shield assembly further includes structure for preventing the needle shield from pivoting into the closed position unless the needle cover is removed, and structure for locking the needle shield in the closed needle protecting position when the needle shield is pivoted into the closed position. The structure for locking traps the needle cannula in the longitudinal opening of the needle shield.

    摘要翻译： 具有本发明的一次性插管锁的针罩组件包括具有近端，远端和通过其的内腔的针插管。 毂包括用于连接到流体输送装置的近端和连接到针插管的近端的远端。 套环旋转地连接到轮毂，使得套环可以围绕轮毂旋转。 细长的针盖可拆卸地接合毂并覆盖针插管。 具有近端和远端的细长针护罩通过其近端铰接地连接到套环。 针护罩包括限定纵向开口的两个侧壁和限定具有内表面的凹部的所述侧壁之间的后壁。 针护罩能够从针套暴露的打开位置枢转到封闭的针保护位置，其中针套的至少一部分在针护罩的纵向开口内。 针护罩组件还包括用于防止针护罩枢转到关闭位置的结构，除非除去针罩，以及当针护罩枢转到关闭位置时将针护罩锁定在闭合针保护位置的结构。 用于锁定的结构将针管插入针护罩的纵向开口中。