RETRACTABLE SAFETY SYRINGE, NOT REUSABLE, AND METHOD FOR DELIVERING A FLUID TO A PATIENT USING A HYPODERMAL SYRINGE NEEDLE AND THEN RETRACT THE NEEDLE

摘要

The invention relates to a single-use retractable safety syringe. BR/ It comprises a hollow plunger (200) carrying a sealing element (600). Their presence relative to the body (100) of the syringe makes it possible to apply to the plunger sufficient pressure to force a drug or other fluid into the body of a patient, while ensuring a maximum seal at the end of the plunger where the sealing member is disposed. The plunger is manipulated from an extended position to an end-of-use position from which it is then moved to a third retracted position. BR/ Application area: medical syringes, etc. / P