Syringe usable for a limited number of injections

Details Syringe usable for a limited number of injections Syringe usable for a limited number of injections

A - Human Necessities

61

M

A61M 5/50 (2006.01) A61M 5/32 (2006.01) A61M 5/34 (2006.01)

Patent

CA 2154665

Syringe consisting of a body in which is disposed a piston (2) of the kind including at least two racks (53, 54) fitted onto the body and at least one lug carried by the piston (2), each of the racks being capable of being shifted in a single direction in relation to a lug. According to the invention, the syringe includes two lugs (63, 64) carried by a yoke (6) which straddles the piston (2), and is rotatably movable about the piston's axis. The lugs (63, 64) are driven into translation by the piston (2) while rotating freely in relation to the latter.

Seringue formée d'un corps dans lequel se déplace un piston (2), du genre comportant au moins deux crémaillères (53, 54) fixées sur le corps et au moins un ergot porté par le piston (2), chacune desdites crémaillères pouvant avoir vis-à-vis d'un ergot un déplacement relatif dans une seule direction. Selon l'invention la seringue comporte deux ergots (63, 64) portés par un étrier (6) chevauchant le piston (2) et mobile en rotation autour de l'axe dudit piston (2), lesdits ergots (63, 64) étant entraînés en translation par le piston (2) tout en étant libres en rotation par rapport à celui-ci.

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