Abstract: Hypodermic syringe having a barrel which with an inner wall thereof defines a reservoir, a closing-off device near the first end of the barrel, and a plunger that is movably placed in the second end of the barrel, wherein the closing-off device comprises a circumferential wall that sealingly abuts the inner wall of the barrel, at the side facing away from the nozzle is provided with a recess extending along a centre line of the closing-off device and over the full width thereof, which recess merges into the through-opening, with in the recess two diametrically opposite flexible locking members, extending in the longitudinal direction of the recess and towards the inner wall, which locking members engage into diametrically placed locking grooves in the inner wall, and at the side facing away from the nozzle, at a circumferential part of the closing-off device situated outside of the recess, is provided with two diametrically opposite and radially outwardly extending blocking members, that engage in diametrical

Abstract: Hypodermic syringe having a barrel which with an inner wall thereof defines a reservoir, a closing-off device near the first end of the barrel, and a plunger that is movably placed in the second end of the barrel, wherein the closing-off device comprises a circumferential wall that sealingly abuts the inner wall of the barrel, at the side facing away from the nozzle is provided with a recess extending along a centre line of the closing-off device and over the full width thereof, which recess merges into the through-opening, with in the recess two diametrically opposite flexible locking members, extending in the longitudinal direction of the recess and towards the inner wall, which locking members engage into diametrically placed locking grooves in the inner wall, and at the side facing away from the nozzle, at a circumferential part of the closing-off device situated outside of the recess, is provided with two diametrically opposite and radially outwardly extending blocking members, that engage in diametrical

Abstract: A safety syringe is provided having a retractable needle assembly. The retractable needle assembly includes a hub that releasably connects to the distal end of the syringe barrel. An anchor inside the hub is fixedly connected to the needle. The anchor includes a plurality of flexible legs adapted for coupling to the plunger when the plunger is fully displaced to its distal end position within the syringe barrel. The anchor also includes a plurality of notches extending outwardly from the flexible legs. When the plunger is retracted, the plunger carries the needle and anchor assembly (the anchor and needle fixedly connected thereto) along inside the barrel as a result of the coupling between the end portion of the plunger and the anchor. The needle is therefore harbored inside the barrel for safe transport and disposal, thus minimizing needlestick injuries and reuse of the needle.