| 摘要 |
The disclosure herein describes a needle assembly for use with a syringe which includes a needle device having a holder and a needle, and a needle guard which is defined by a hollow cylindrical sheath that partially surrounds the needle; the guard has a first end mounted to the needle holder and an opposite closed end in proximity to the needle pointed end. Elongated slots and pivot pins cooperate to anchor the needle guard to the holder. In one embodiment, the slots are provided on the needle guard and the pins on the holder while, in a second embodiment, the slots are provided on the holder and the pins on the guard. This cooperating arrangement of the slot and pins allows the sheath to be pivoted back at substantially 180 DEG relative to its needle surrounding initial position thus removing the presence of the sheath as much as possible from the needle puncturing operation.
|
