Injection syringe with movable needle protector

Details Injection syringe with movable needle protector Injection syringe with movable needle protector

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61M 5/34 (2006.01) A61M 5/50 (2006.01) A61M 5/28 (2006.01) A61M 5/31 (2006.01) A61M 5/315 (2006.01)

Patent

CA 2275350

The invention concerns an injection syringe (10) comprising a syringe body (12) bearing an injecting needle (22) and a rear actuating piston (14) movably mounted in the body (12). It further comprises a mobile protector (36) of the end (22A) of the injecting needle, movable between a retracted position in the body (12) and an active protecting position in which the front end or the protector (36) is in front of the injecting end (22A). The protector (36) and the syringe body (12) comprise protuberances associated (44, 102) by projections and recesses for maintaining the protector (36) in its active protecting position. The syringe comprises a member (66) for positively retaining in locked position the protuberances associated (44, 102) by projections and recesses when the needle protector (36) is in active protecting position.

La seringue d'injection (10) comporte un corps de seringue (12) portant une aiguille d'injection (22) ainsi qu'un piston arrière d'actionnement (14) monté déplaçable dans le corps (12). Elle comporte en outre un protecteur mobile (36) de l'extrémité (22A) d'injection de l'aiguille, déplaçable entre une position escamotée dans le corps (12) et une position active de protection dans laquelle l'extrémité avant du protecteur (36) se trouve en avant de l'extrémité d'injection (22A). Le protecteur (36) et le corps de seringue (12) comportent des reliefs associés (44, 102) en saillie et en creux de maintien du protecteur (36) dans sa position active de protection. Elle comporte un organe (66) de retenue positive de l'engagement desdits reliefs associés (44, 102) en saillie et en creux lorsque le protecteur d'aiguille (36) est dans sa position active de protection.

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