| 摘要 |
A safety device for use with a conventional hypodermic syringe including a needle shield for connection to the hypodermic syringe having a tubular housing slidably connected to a retractable needle sheath. The needle sheath is selectively lockable in a retracted position within the tubular housing so that a needle held by the hypodermic extension can be exposed for use. A handle can be used for retracting the needle sheath within the tubular housing to a locked position. A release tab is located on the exterior of the tubular housing for unlocking the needle from the retracted position, and allowing said needle sheath to automatically lock in the closed position.
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