Vented vial adapter with filter for aerosol retention

A - Human Necessities – 61 – J

Patent

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Details

A61J 1/20 (2006.01)

Patent

CA 2666242

A vented vial adapter has a filter attached to a vent arm that includes at least two filter media for suppressing aerosolized medicaments from leaving the vial and suppressing bacteria and other contaminants from entering the vial during reconstitution activities of the medication in the vial. The filter media allows the passage of air to the atmosphere outside the vial for pressure equalization. In another aspect, a third filter medium is used in the vent of the adapter to allow gas to pass in either direction through it, but prevents bacteria and particulate matter in the atmosphere from reaching the second filter device. A first filter is hydrophobic and prevents non-dispersed liquid from reaching the second filter, while conducting liquid dispersed in gas. The second filter absorbs the liquid dispersed in gas.

L'invention concerne un adaptateur de flacon avec aération comportant un filtre fixé à un bras d'aération qui inclut au moins deux supports de filtres permettant d'empêcher des médicaments transformés en aérosol de s'échapper du flacon et permettant d'empêcher à des bactéries et autres agents contaminants d'entrer dans le flacon pendant les activités de reconstitution de la médication dans le flacon. Les supports de filtres permettent le passage d'air vers l'atmosphère à l'extérieur du flacon en vue d'une égalisation des pressions. Selon un autre aspect, un troisième support de filtre est utilisé dans l'aération de l'adaptateur afin de permettre le transfert de gaz dans les deux sens à travers celui-ci, mais il empêche à des bactéries et à de la matière en particules se trouvant dans l'atmosphère d'atteindre le second dispositif de filtre. Un premier filtre est hydrophobe et empêche le liquide non diffusé d'atteindre le second filtre tout en dirigeant le liquide diffusé en gaz. Le second filtre absorbe le liquide diffusé en gaz.

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