| 摘要 |
The present invention relates to a safety device ( 2 ) for a prefilled syringe ( 1 ), the syringe comprising a body ( 3 ), a needle carrier ( 4 ), a piston ( 6 ) movable inside the body, and a piston rod ( 7 ) suitable for pushing the piston inside the body towards the needle carrier. The device comprises a protective sheath ( 10 ) in which the syringe body can slide between an injection position and a safe position in which the needle is withdrawn inside the sheath, said device ( 2 ) comprising a resilient element ( 15 ) suitable for acting on the syringe to bring in into its safe position after injection, said resilient element presenting two axial ends and comprising at least two elastically-deformable arms extending between said two axial ends, one of the ends ( 20 ) being arranged so as to be capable of sliding freely relative to the piston rod ( 7 ) prior to injection, and/or one of the ends being arranged in such a manner as to be capable of being fixed to the protective sheath ( 10 ) in a position of adjustable height.
|
