| 摘要 |
A syringe and needle assembly having a protective needle shield, which is structurally simple and provides greater safety in use, is disclosed. The syringe and needle assembly comprises a barrel; a plunger disposed slidably inside the barrel; a needle unit including a needle hub and a needle securely affixed to the needle hub; and a cap disposed about the needle unit and the barrel as a protective cover. The cap has a curved wall covering the needle unit and the barrel, the wall having an open end adjacent to the barrel, a closed end adjacent to the needle, and an opening extending longitudinally from the open end to the closed end for lateral insertion of the barrel and the needle unit into the cap. The opening is in communication with the open end and has a width sufficient to permit passage of the barrel along a direction transverse to the opening.
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