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    • 2. 发明申请
    • SAFETY NEEDLE ASSEMBLY
    • 安全针组件
    • US20110288491A1
    • 2011-11-24
    • US12922776
    • 2009-03-13
    • Craig NewmanStephen RichardsVadim GoykhmanTieming Ruan
    • Craig NewmanStephen RichardsVadim GoykhmanTieming Ruan
    • A61M5/32
    • A61M5/5086A61M5/326A61M5/3293A61M5/347A61M2005/3247A61M2005/3254A61M2005/3263
    • A safety needle assembly is provided herein which includes a hub; a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end; a first shield having a tubular body at least partially encircling a portion of the needle, wherein in an initial state, the first shield extends from the hub; a second shield having a tubular body at least partially encircling a portion of the needle; a biasing element disposed to urge the second shield distally towards the distal end of the needle; and, a releasable retaining arrangement for releasably retaining the second shield in a first state. Upon a predetermined extent of proximal movement of the first shield relative to the hub, the second shield is released thereby allowing the biasing element to urge the second shield to a second state in which the distal end of the needle is covered. Advantageously, with the arrangement of the subject invention, two shields are provided for at least partially covering a needle with one of the shields acting as a trigger.
    • 本文提供了一种安全针组件,其包括毂; 固定到所述轮毂的针,所述针具有用于插入患者体内的远端,以及近端; 第一屏蔽,其具有至少部分地环绕所述针的一部分的管状体,其中在初始状态下,所述第一屏蔽从所述毂延伸; 第二屏蔽件,其具有至少部分地环绕所述针的一部分的管状体; 偏置元件,设置成朝向针的远端向远侧推动第二屏蔽件; 以及用于将第二屏蔽件可释放地保持在第一状态的可释放保持装置。 在第一屏蔽件相对于轮毂的预定程度的近端运动时,第二屏蔽件被释放,从而允许偏置元件将第二屏蔽件推动到针的远端被覆盖的第二状态。 有利地,通过本发明的布置,提供两个屏蔽件,用于至少部分地覆盖针,其中一个屏蔽件用作触发器。