| 摘要 |
<p>The invention relates to a plastic syringe for injections and blood sampling, of which the needle cannula, which is fixed on the plunger, remains within its barrel both before and after use, said barrel being a useful sheath and providing ideal protection. The needle cannula comes out and, after use, returns inside the barrel of the syringe where it is locked by suitable protrusions or by internal locking rings within the barrel of the syringe. The invention is intended to prevent accidental jabs and the drawing of blood which can often lead to serious infections illnesses such as tetanus, AIDS and viral hepatitis.</p> |
