Syringe with disabling mechanism

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/50 (2006.01)

Patent

CA 2727398

A syringe assembly (100) having a passive disabling system to prevent reuse are provided. According to the embodiment, the syringe assembly comprises a barrel (420), plunger rod (440) and stopper (460) wherein the plunger rod further comprises a flexible protrusion (444) that locks the plunger rod within the barrel. The embodiment further includes a frangible portion (443) on the plunger rod that breaks when reuse is attempted. The embodiment includes a plunger rod and stopper attachment (446) that prevents disassembly of the syringe assembly prior to use. The syringe assembly also includes visual indicators or markers indicating whether a syringe assembly is used or the plunger rod is locked within the barrel.

La présente invention concerne un ensemble de seringue (100) ayant un système passif de mise hors de fonction pour empêcher la réutilisation. Selon le mode de réalisation, lensemble de seringue comprend un cylindre (420), une tige de piston (440) et une butée (460), la tige de piston comprenant en outre une protubérance flexible (444) qui la verrouille à lintérieur du cylindre. Le mode de réalisation comprend en outre une partie cassable (443) sur la tige de piston qui se rompt lorsquune réutilisation est tentée. Le mode de réalisation comprend un équipement de tige de piston et de butée (446) qui empêche le désassemblage de lensemble de seringue avant lutilisation. Lensemble de seringue comprend également des indicateurs ou marqueurs visuels indiquant si un ensemble de seringue est usagé ou si la tige de piston est verrouillée à lintérieur du cylindre.

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