| 摘要 |
A pre-filled injection syringe safety assembly comprising a tubular sleeve in which the syringe barrel can be axially moved to deploy or retract the needle is new. A new pre-filled injection syringe safety assembly comprises a tubular barrel (K) forming a reservoir for a liquid to be injected, a needle (A) and a plunger (P). The barrel can be moved axially inside a tubular sleeve (1) between a safety position in which the needle is retracted inside the sleeve and an active position with the needle deployed. A spring (R) urges the barrel towards the safety position, while catches (6) allow it to be locked in the deployed state. After use the spring returns the barrel and needle to the retracted position. |
