A hypodermic syringe

Details A hypodermic syringe A hypodermic syringe

A - Human Necessities

61

M

A61M 5/50 (2006.01)

Patent

CA 2548722

A syringe (110) having a barrel (111) that receives a rod assembly (117). Mounted at the forward end of the Barrel (111) is a needle mounting (121) that receives a s needle (124). The mounting (121) is releasably attached to the barrel (111). The rod assembly (117) includes a hollow rod (118) that has at its forward end a gripper device (135) that engages the mounting (121) so that upon release of the mounting (121) with respect to the barrel (111) and release of the device (135) with respect to the rod (118), the mounting (121) and device (135) are propelled into the rod (118) by a spring (138).

La présente invention concerne une seringue (110) qui possède un cylindre (111), lequel reçoit un ensemble tige (117). Monté à l'extrémité avant du cylindre (111), un support d'aiguille (12)1 reçoit une aiguille (124). Ce support (121) est fixé de façon démontable au cylindre (111). L'ensemble tige (117) comprend une tige creuse (118) qui possède au niveau de son extrémité avant un dispositif de pince (135) qui entre en contact avec le support (121) de sorte que lorsqu'on libère ce support (121) par rapport au cylindre (111) et lorsqu'on libère le dispositif (135) par rapport à la tige (118), ce support (121) et ce dispositif (135) sont propulsés dans la tige (118) par un ressort (138).

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