| 摘要 |
<p>Disclosed are hypodermic syringes having special safety features for preventing the user from inadvertently pricking himself with the needle. In the preferred embodiment the barrel (11) of, for example, a syringe (10) is provided with a sleeve (16) that can be drawn out over the needle (13) and firmly locked into position to prevent accidental contact of the user with the needle.</p> |
