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    Single use syringe having safety shield
    1.
    发明授权
    Single use syringe having safety shield 有权
    单用注射器，带安全防护罩

    公开(公告)号：US07387615B2

    公开(公告)日：2008-06-17

    申请号：US10530847

    申请日：2003-10-02

    申请人： Eduardo Pinto Coelho ,  Delmar Francisco Goncalves Da Silva ,  Amir A. Sharifi-Mehr ,  Gene Fleischer ,  Robert K. Cipoletti ,  Robert B. Odell

    发明人： Eduardo Pinto Coelho ,  Delmar Francisco Goncalves Da Silva ,  Amir A. Sharifi-Mehr ,  Gene Fleischer ,  Robert K. Cipoletti ,  Robert B. Odell

    IPC分类号： A61M5/00 ,  A61M5/32

    CPC分类号： A61M5/3216 ,  A61M5/31513 ,  A61M5/347 ,  A61M5/502 ,  A61M5/5066 ,  A61M2005/5073

    摘要： A single use syringe assembly includes a barrel having a chamber for retaining fluid, an open proximal end and a distal end including an elongate tip extending distally therefrom having a passageway therethrough in fluid communication with the chamber. A needle cannula having a lumen therethrough is connected to the elongate tip so that the lumen is in fluid communication with the passageway. An elongate needle shield having a longitudinal opening therein is hingedly connected to the barrel. A needle shield is capable of pivoting from an open position or a closed needle protecting position. The plunger including an elongate body portion and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel. Structure is provided for locking the plunger in the barrel by applying distally directed force to the plunger after fluid has been delivered from the chamber.

    摘要翻译： 一次性注射器组件包括具有用于保持流体的腔室的筒，敞开的近端和远端，其包括从其向远侧延伸的细长末端，其具有与腔室流体连通的通道。 具有穿过其中的内腔的针插管连接到细长尖端，使得内腔与通道流体连通。 在其中具有纵向开口的细长针护罩铰接地连接到筒体上。 针护罩能够从打开位置或闭合的针保护位置枢转。 包括细长主体部分和塞子的柱塞可滑动地定位成与筒体的内表面流体密封接合。 提供了结构，用于通过在从腔室输送流体之后向柱塞施加向远侧的力而将柱塞锁定在筒体中。

    Retracting needle assembly for a syringe
    2.
    发明授权
    Retracting needle assembly for a syringe 有权
    缩回注射器的针组件

    公开(公告)号：US06689106B2

    公开(公告)日：2004-02-10

    申请号：US10353392

    申请日：2003-01-29

    申请人： Charles L. Bush, Jr. ,  Roger Hoeck ,  Amir A. Sharifi-Mehr

    发明人： Charles L. Bush, Jr. ,  Roger Hoeck ,  Amir A. Sharifi-Mehr

    IPC分类号： A61M500

    CPC分类号： A61M5/508 ,  A61M5/3234 ,  A61M5/349 ,  A61M5/502

    摘要： A retracting needle assembly for use with a syringe barrel having a distally-facing annular sealing surface includes an outer hub having a conduit therethrough, a proximally facing annular sealing surface and means for connecting the outer hub to the syringe barrel. An inner hub having a passageway therethrough is provided. The inner hub includes a distally extending stem and a proximal flange for releasably engaging the outer hub. A needle having a sharp distal end and a proximal end is mounted in the passageway of the inner hub so that the sharp distal end projects distally outwardly. An elongate spring is disposed about the stem of the inner hub and is deflected to provide a bias between the inner hub and the outer hub. A hollow sleeve sized to fit within the conduit of the outer hub over the spring is provided. The sleeve has a sharp edge at its distal end for cutting through the flange to activate the retracting needle feature.

    摘要翻译： 一种与具有朝向远端的环形密封表面的注射器筒一起使用的回缩针组件包括具有穿过其中的导管的外部毂，面向近侧的环形密封表面和用于将外部毂与注射器筒连接的装置。 提供具有通过其的通道的内部毂。 内毂包括远侧延伸的杆和用于可释放地接合外轮毂的近侧凸缘。 具有尖锐远端和近端的针安装在内毂的通道中，使得尖锐的远端向远侧突出。 细长弹簧设置在内毂的杆周围并且被偏转以在内毂和外毂之间提供偏压。 提供了一种中空的套筒，其尺寸适于在弹簧上装配在外毂的导管内。 套筒在其远端具有锋利的边缘，用于切割法兰以启动回缩针特征。