Patent ID: 8337467

Claim:
A safety device for a syringe, the device comprising: (a) a protective sheath presenting at a distal portion, an opening, which is suitable for allowing the syringe to project beyond the sheath, and the protective sheath presenting at the distal portion a radial resilience suitable for enabling the sheath to receive a cylinder of a diameter greater than that of said opening, (b) means for enabling the syringe to slide in the sheath between a first position enabling injection to be performed and a second position in which the needle of the syringe is withdrawn into the inside of the sheath, (c) a sleeve radially inward from said protective sheath along a portion of the sheath, the sleeve being suitable for receiving the syringe, and (d) a resilient element acting between the sheath and the sleeve, the resilient element enabling the sleeve to move, at the end of injection, from the first position into the second position by a rearward movement of the sleeve relative to the sheath.