Apparatus and methods for dispersing dry powder medicaments

A - Human Necessities – 61 – M

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A61M 15/00 (2006.01) B05B 7/14 (2006.01)

Patent

CA 2200727

A method for aerosolizing a powdered medicament comprises coupling a powder inlet end of a feed tube (14) with a penetration in a receptacle (12) containing the powder. Powder is drawn upward through the tube and dispersed in a high pressure gas stream flowing past a portion of the feed tube. Apparatus comprises the feed tube mounted within a base enclosure proximate a holder for one or more receptacles, which may be formed in a continuous web placed in a cartridge (22). A separate piercing mechanism (26) may be provided.

La présente invention concerne un procédé de diffusion aérosol d'un médicament pulvérisé consistant à brancher l'extrémité d'entrée de poudre d'un tube d'alimentation (14) sur un élément pénétrant dans un réceptacle (12) contenant la poudre. La poudre est entraînée vers le haut au travers du tube et dispersée dans un courant de gaz haute pression circulant devant une partie du tube d'alimentation. L'appareil comporte un tube d'alimentation monté dans une enceinte de base, au voisinage d'un support destiné à un ou plusieurs réceptacles, qui peuvent être rassemblés en une bande continue disposée dans une cartouche (22). L'invention peut également comporter un mécanisme de perforation (26).

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