Solid drug formulation and device for storage and controlled...

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/00 (2006.01) A61K 38/09 (2006.01)

Patent

CA 2523432

Devices and methods are provided for the storage and controlled release of a solid form of a drug. The device comprises a body portion; one or more reservoirs located in and defined by the body portion; a solid matrix which comprises a drug and which is contained in each of the one or more reservoirs; and one or more excipient materials dispersed throughout pores or interstices within the solid matrix and substantially filling any space not otherwise occupied by the solid matrix within each of the one or more reservoirs, wherein the excipient material enhances stability of the drug while stored in the one or more reservoirs or enhances release of the drug from each reservoir. In an alternative embodiment, the device provides for the storage and controlled exposure of a chemical sensor material.

La présente invention concerne des dispositifs et des procédés destinés au stockage et à la distribution contrôlée d'une forme solide d'un médicament. Ce dispositif comporte un corps, un ou plusieurs réservoirs situés dans et définis par le corps, une matrice solide qui comprend un médicament et qui est renfermée dans chacun des différents réservoirs, et un ou plusieurs excipients dispersés dans des pores ou des interstices à l'intérieur de la matrice solide et remplissant sensiblement n'importe quel espace autrement inoccupé par la matrice solide à l'intérieur de chacun des différents réservoirs. En l'occurrence, l'excipient renforce la stabilité du médicament pendant qu'il est stocké dans les différents réservoirs, ou renforce la distribution du médicament à partir de chaque réservoir. Pour un autre mode de réalisation, le dispositif assure le stockage et le dégagement contrôlé d'un matériau de détection chimique.

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