A spacer for inertial removal of the non-respirable fraction...

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2481095

The invention comprises a medicinal inhaler spacer (100, 200) OR actuator comprising a chamber (130, 230) having a proximal end (132, 232) closed by a proximal plate (140, 240), a tangentially aligned inlet (110, 210) on the proximal end (132, 232) of the chamber (130, 230), a tapered distal end (134, 234), and an outlet (120, 220) extending through the proximal plate (140, 240) into and communicating with the chamber (130, 230). Spacers (100, 200) of the present invention may be used to increase the respirable fraction of a medicinal aerosol inhaler. The invention also comprises medicinal aerosol inhalers and methods of delivering drug to the lung of a mammal employing these spacers.

Cette invention concerne un spacer ou actionneur d'inhalateur de médicaments (100, 200), qui comprend une chambre (130, 230) présentant une extrémité proximale (132, 232) fermée par une plaque proximale (140, 240); un orifice d'admission à alignement tangentielle (110, 210) ménagé sur l'extrémité proximale (132, 232) de la chambre (130, 230); une extrémité distale conique (134, 234); et un orifice de sortie (120, 220) traversant la plaque proximale (140, 240) pour pénétrer dans la chambre (130, 230) et communiquer avec celle-ci. Les spacers (100, 200) de l'invention peuvent être utilisés pour augmenter la fraction respirable d'un inhalateur de médicaments en aérosol. L'invention concerne en outre des inhalateurs de médicaments en aérosol, et des méthodes utilisant ces spacers pour administrer des médicaments dans les poumons d'un mammifère.

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