Sterile vial connector assembly for efficient transfer of...

A - Human Necessities – 61 – J

Patent

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Details

A61J 1/20 (2006.01) A61J 1/00 (2006.01)

Patent

CA 2212283

A connector assembly is provided for efficient flow of liquid into and/or out of a vial, such as a vial containing a lyophilized drug. The connector assembly includes a spike and a stopper sleeve, both slidably mounted in the open top of the vial. The connector assembly includes a stopper affixed to the stopper sleeve and sealingly engaged in the open top of the vial. The stopper is slidably moveable in response to axial movement of the stopper sleeve. Movement of the stopper sleeve relative to the vial will move the stopper into or out of sealing engagement with the vial. The connector assembly further includes a spring for generating a small amount of axial movement of the spike, stopper sleeve and stopper after the stopper has been moved into the opened position in the vial. Movement of the spike, stopper sleeve and stopper generated by the spring will cause a sufficient change in pressure to overcome surface tension and initiate an efficient flow of fluid into or out of the vial.

Un ensemble-raccord est prévu pour permettre un écoulement efficace de liquide vers l'intérieur ou l'extérieur d'une fiole qui contient, par exemple, un médicament lyophilisé. Il comporte un perforateur et une gaine de joint, tous deux montés de façon coulissante dans la partie supérieure de la fiole. Il comprend un joint fixé à la gaine et s'engageant de façon étanche dans la partie supérieure de la fiole. Le joint peut coulisser en réponse au déplacement axial de la gaine du joint. Le déplacement de la gaine du joint par rapport à la fiole fera bouger le joint, ce qui permettra d'ouvrir la fiole ou de la refermer de façon étanche. De plus, l'ensemble-raccord comprend un ressort permettant de générer un léger déplacement axial du perforateur, de la gaine du joint et du joint, une fois le joint placé en position ouverte dans la fiole. Le déplacement du perforateur, de la gaine du joint et du joint au moyen du ressort entraînera une modification suffisante de la pression pour surmonter la tension superficielle et amorcer un écoulement efficace de liquide vers l'intérieur ou l'extérieur de la fiole.

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