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Invention Grant
US07658725B2 Enclosed needle device with duckbill release mechanism 有权
带鸭嘴释放机构的封闭针装置

Enclosed needle device with duckbill release mechanism
Abstract:
An enclosed needle catheter insertion device (10) includes a catheter (12) and a needle insertion device (14) which are held together by cooperating arms (52, 53) with one or more detents (56) cooperating with a radially projecting surface (26) of the catheter hub (16). Insertion device (14) includes a guard housing (30) to enclose a needle (34) in a shielded position and a support housing (32) supporting the needle (34) for movement between a ready position, with the tip (36) of the needle (34) exposed, to the shielded position. Cooperating lock elements (47, 78) are provided for the housings (30, 32) which are positioned to define a lock actuation stage between the ready and shielded positions, whereat the needle is still within a passageway (54) defined by the cooperating arms (52, 53).
Abstract(Chinese):

封闭的针导管插入装置（10）包括导管（12）和针插入装置（14），它们通过配合的臂（52,53）与一个或多个与径向突出的表面配合的棘爪（56） 26）。 插入装置（14）包括用于将针（34）封闭在屏蔽位置的保护壳体（30）和支撑针（34）的支撑壳体（32），用于在就绪位置与准备位置之间移动，该就绪位置与尖端 针（34）暴露于屏蔽位置。 为壳体（30,32）设置合作的锁定元件（47,78），所述壳体（30,32）被定位成在准备位置和屏蔽位置之间限定锁定致动台，其中针仍在由协作臂限定的通道（54）内 （52,53）。

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