Prefilled syringe and method for sterilizing prefilled...

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/28 (2006.01) A61L 2/04 (2006.01) A61L 2/07 (2006.01) A61M 5/31 (2006.01) A61M 5/34 (2006.01)

Patent

CA 2215177

A prefilled syringe provided with a cylinder (1), one or more rubber stoppers (5) and plungers (6) inserted into the cylinder (1) at given distances from each other, and a needle holder (2) that communicates with the tip of the cylinder (1) in a hermetically sealed state and has a needle-mounting section (2a) integrally attached to the tip of an injection cylinder section (20) having in the inner surface thereof passages (25) formed along the direction of flow of an injection in a state wherein the rubber stopper (5) has been inserted into the cylinder section, which syringe contains an injection prefilled in the space between the rubber stopper (5) and the plunger (6) in the cylinder (1) and which is provided with means for hermetically sealing the holder (2) on the side of the mounting section (2a); and a method of heat sterilizing a prefilled injection in such a hermetically sealed state. The prefilled injection can be sterilized with steam or hot water without allowing the steam to penetrate into the injection cylinder section.

L'invention concerne une seringue pré-remplie qui se compose d'un cylindre (1) contenant un ou plusieurs bouchons (5) et pistons (6) en caoutchouc séparés les uns des autres, et d'un porte-aiguille (2) communiquant avec l'extrémité du cylindre (1) de façon hermétique. La seringue comprend une partie réservée à l'aiguille (2a) qui prolonge l'extrémité du cylindre (20) à l'intérieur duquel sont aménagés des passages (25), parallèles au sens d'écoulement et au sens de déplacement du bouchon (5). Le liquide contenu dans la seringue se trouve dans l'espace compris entre le bouchon de caoutchouc (5) et le piston (6), dans le cylindre (1) de telle sorte que le porte-aiguille est hermétiquement scéllé dans la section destinée à l'aiguille (2a). L'invention concerne en outre une méthode de stérilisation à chaud, au moyen de vapeur ou d'eau chaude, qui préserve absolument l'intégrité du contenu du cylindre.

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