Powder inhaler

Details Powder inhaler Powder inhaler

A - Human Necessities

61

M

A61M 15/00 (2006.01)

Patent

CA 2190496

A device for dispensing single doses of powdered medicament has a housing (304) for holding a container (342) which has a number of sealed apertures (344) containing individual encapsulating doses of medicament. The container (342) can move relative to the housing (304) to allow each aperture (344) in succession to be brought into registry with an airway which communicates with a mouthpiece (310). The device includes apiercing member, such as a pin (328), which can be inserted into a selected aperture to break its respective seals. The configuration and movement of the pin (328) are such that this action expels substantially no powder from the aperture.

Dispositif servant à distribuer des doses uniques de médicament en poudre et possédant un boîtier (304) conçu pour supporter un réservoir (342) comportant plusieurs ouvertures scellées (344) contenant des doses individuelles et encapsulées du médicament. Le réservoir (342) peut se déplacer par rapport au boîtier (304), ce qui permet d'aligner successivement chaque ouverture (344) avec un passage communiquant avec une ouverture (310). Le dispositif comprend un élément de perçage, tel qu'une aiguille (328) pouvant s'introduire dans une ouverture sélectionnée, afin de casser son élément de scellement. La configuration et le déplacement de l'aiguille (328) permettent de n'expulser pratiquement pas de poudre de puis l'ouverture.

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