| 摘要 |
A safety needle device (20) includes a barrel (21) having an inside surface (22) defining a chamber (23) and an open proximal end (25). A distal end (27) includes a needle cannula (28) attached thereto. The needle cannula (28) includes a distal tip (31) and a lumen therethrough in fluid communication with the chamber (23). A needle guard (32) is mounted on the barrel (21) for movement relative to the barrel from a retracted position in which the needle guard (32) does not materially obstruct access to the distal tip (31) of the needle cannula (28) and an extended position in which the needle guard (32) obstructs access to the distal tip (31). The safety needle device (20) includes structure for releasably retaining the needle guard in the retracted position and for locking the needle guard in the extended position. A safety indicator (39) is provided on the distal end of the barrel for visually indicating that the needle guard (32) is not in the locked extended position and an obscurement means (41) is provided on the needle guard (32) for obscuring or changing the appearance of the safety indicator (39) when the needle guard (32) is in the locked extended position. <IMAGE> |
