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    • 7. 发明申请
    • NEEDLE GUARD MECHANISMS
    • 针防守机制
    • WO2007018824A3
    • 2007-11-01
    • PCT/US2006025530
    • 2006-06-28
    • SMITHS MEDICAL ASD INCBIALECKI DENNIS MSUTTON THOMAS KALBERT SEAN JGORAL DAVID JLILLEY THOMAS F JRKING ALAN D
    • BIALECKI DENNIS MSUTTON THOMAS KALBERT SEAN JGORAL DAVID JLILLEY THOMAS F JRKING ALAN D
    • A61M5/32A61M25/06
    • A61M25/0606A61M5/3273A61M25/0618A61M2005/3247A61M2005/325
    • A needle guard (10) includes a clip (12) with a canting wall (16) to grip the needle shaft (56) and a distal wall (20) to block the tip (58) thereof, wherein the canting and distal walls may be interconnected by an angled strut (24), a spring member (14), such as a leaf spring, may have a portion extending past an edge (27) of the strut to bias the clip to grip the needle shaft, and the distal wall may be or include a stylus (38) and have an L-shape to define a lip (36) to help block the needle tip. The clip may have a depending heel (34) to help pivot the clip about a ledge (72) to grip the needle shaft. A needle support (80) may be provided to limit flexure of the needle which might otherwise allow the needle to come loose from the clip. Arrangements (300, 302) for limiting rotation of the needle hub and needle guard housing are provided, as is a protective shroud (320) to reduce the risk of inadvertent activation of the needle guard. Further, the needle guard may be used with a catheter assembly (200). Also provided is an improved duckbill release mechanism (260, 268).
    • 护针器(10)包括具有用于夹持针轴(56)的倾斜壁(16)的夹子(12)和用于阻挡其的尖端(58)的远端壁(20),其中倾斜壁和远端壁可以 通过成角度的支柱(24)相互连接,诸如片簧的弹簧构件(14)可以具有延伸超过支柱的边缘(27)的部分以偏压夹以夹持针轴,并且远端 壁可以是或包括触针(38)并且具有L形以限定唇部(36)以帮助阻挡针尖。 夹子可具有悬垂的脚跟(34)以帮助围绕凸缘(72)枢转夹子以夹持针轴。 可以设置针支撑件(80)以限制针的弯曲,否则可能会使针从夹子上松脱。 提供了用于限制针座和针头罩壳体的旋转的装置(300,302),如同保护罩(320)一样,以减少无意中启动针头罩的风险。 此外,护针器可以与导管组件(200)一起使用。 还提供了改进的鸭嘴形释放机构(260,268)。