Dry powder inhaler

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2353938

A metering device suitable for use in a dry powder inhaler comprises a housing defining a reservoir. The reservoir contains a powder. A rotatable auger, having a first and second end, has one or more flutes extending between the ends. The first end of the auger communicates with the reservoir. A dosing member, defining a dosing recess having a desired volume, is positionable adjacent said second end of said auger. Rotation of said auger causes the powder to be transferred through the flutes and into the dosing recess to fill the recess volume with a specific dose of powder.

La présente invention concerne un dispositif de dosage s'utilisant avec un inhalateur de poudre sèche, comprenant un logement qui forme un réservoir de poudre. Une vis rotative, pourvue d'une première et d'une seconde extrémité, présente une ou plusieurs cannelures s'étendant entre ses extrémités. La première cannelure communique avec le réservoir. Un doseur, formant un évidement de dosage avec un volume désiré, peut être placé à proximité de ladite seconde extrémité de la vis. La rotation de la vis provoque le transfert de la poudre à travers les cannelures et dans l'évidement de dosage, pour remplir le volume de l'évidement avec une dose spécifique de poudre.

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