pre filled syringe designed to be sterilisee steam autoclaving and

摘要

the syringe (1) comprises: a body having a cylindrical side wall (3) having an upstream end open to an internal annular bead (9) and a lower end closed by a transverse wall provided with an orifice; a shaft (10) with a piston (11) with at least two annular sealing lips (12, 13)(14) between which is defined at least one annular chamber (16, 17). the stem, which can slide in the body, the body defining an internal chamber in which at least partially filled with a material (18).passage means (21) arranged in the body are configured to be in communication with the annular chamber of the plunger out of the body or with the inner chamber of the body, when the plunger is in abutment against the annular pad.