| 摘要 |
A safety needle assembly including a needle (40) with an intravenous puncture tip, a shield (140) in pivotal engagement with respect to the needle (40), and a hub (60) in the form of a collar (90) providing pivotal engagement between the needle (40) and the shield (140) is provided. The shield (140) is pivotally movable between an unshielded position and a shielded position in which a portion of the shield (140) encompasses the intravenous puncture tip for shielding the needle (40) for safety purposes. The collar (90) and the shield(140) include locking structure (118,194) providing locking engagement therebetween for locking the shield in the shielded position for preventing pivotal movement to the unshielded position. The collar (90) further includes at least one collar flange (120) extending laterally along a portion of the collar (90) for preventing disengagement of the locking structure. <IMAGE>A safety needle assembly including a needle (40) with an intravenous puncture tip, a shield (140) in pivotal engagement with respect to the needle (40), and a hub (60) in the form of a collar (90) providing pivotal engagement between the needle (40) and the shield (140) is provided. The shield (140) is pivotally movable between an unshielded position and a shielded position in which a portion of the shield (140) encompasses the intravenous puncture tip for shielding the needle (40) for safety purposes. The collar (90) and the shield(140) include locking structure (118,194) providing locking engagement therebetween for locking the shield in the shielded position for preventing pivotal movement to the unshielded position. The collar (90) further includes at least one collar flange (120) extending laterally along a portion of the collar (90) for preventing disengagement of the locking structure. <IMAGE> |
