| 摘要 |
A safety hypodermic syringe having a thin breakable wall portion (16) at the front wall (15) of the barrel (1) thereof that is breakable with the plunger (3) of the syringe when the user forcing the barbed front tip (34) of the plunger into engagement with the tubular front neck (14) of the barrel after the service of the syringe, for enabling the plunger to carry the separated tubular front neck and the attached needle assembly (2) to the inside of the barrel after the service of the syringe to prevent contamination. |
