Plunger for syringe

Details Plunger for syringe Plunger for syringe

A - Human Necessities

61

M

A61M 5/315 (2006.01)

Patent

CA 2379409

A gasket 7 used for a prefilled syringe 1 in which liquid 3 is filled, having a constriction 8 on its circumferential side face in contact with an inner surface of a syringe barrel 2 and having a bottom face 7c which is not in contact with the liquid 3 whose circumference is formed in a tapered shape.

L'invention concerne un piston (1) pour seringue utilisé pour déplacer un joint d'étanchéité (25) inséré dans un cylindre (20) de seringue. Grâce à l'alignement aisé de l'axe central du cylindre (20) sur l'axe central du piston (1), le joint (25) peut être placé sur la partie filetée au bout du piston.

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