Single use syringe

Details Single use syringe Single use syringe

A - Human Necessities

61

M

A61M 5/315 (2006.01) A61M 5/32 (2006.01) A61M 5/50 (2006.01)

Patent

CA 2406567

A single use retractable syringe and plunger are provided. The syringe has a barrel having a collar with one or two projections that slidably engage a plurality of interconnected slots of the plunger. The slots of the syringe include one or more gates or abutments that restrict slidable movement of the projections within the slots to thereby prevent re-use of the syringe after injection and subsequent retraction of the needle.

L'invention concerne une seringue et un piston rétractables à usage unique. La seringue comprend un cylindre possédant un collet pourvu d'une ou de deux projections entrant en prise, de manière coulissante, avec plusieurs fentes interconnectées du piston. Les fentes de la seringue comprennent au moins une porte ou butée servant à restreindre le coulissement des projections dans les fentes, et ce afin d'éviter que la seringue soit réutilisée après injection et après qu'on ait retiré l'aiguille.

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