Syringe with a barrel holding a fluid medium and having a...

A - Human Necessities – 61 – M

Patent

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A61M 5/31 (2006.01)

Patent

CA 2416565

A syringe is provided with a barrel 1 holding a fluid medium and a sealing cap that is put on the outlet end of the barrel. The barrel 1 in the section that can be inserted into the cap has a first locking element 8 on the outside. The sealing cap 2 in the corresponding section has interactive second locking elements 12 on the inside. In order that the sealing cap can be put onto barrel with little force and thus less cracking occurring, the cap has a plurality of second locking elements 12 that are arranged peripherally. In each case, an expansion section 13 is provided in the wall of cap 2 between each pair of adjacent locking elements 12.

L'invention concerne une seringue composée d'un cylindre (1) recevant un milieu liquide et d'un capuchon de fermeture logé côté sortie. Le cylindre (1) présente un premier élément d'encastrage (8) sur l'extérieur de la partie destinée à être introduite dans le capuchon. Le capuchon (2) présente sur l'intérieur de ladite partie des deuxièmes éléments d'encastrage (12) interagissant avec le premier. L'invention vise à permettre une mise en place avec une force réduite du capuchon de fermeture sur le cylindre (1), et à réduire par conséquent le risque de rupture. A cet effet, le capuchon (2) présente une pluralité de deuxièmes éléments d'encastrage (12) logés dans le sens périphérique. Une partie d'expansion (13) est prévue dans la paroi du capuchon (2) respectivement entre deux éléments d'encastrage (12) adjacents.

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