Improvements in treatment of dry powder formulations

A - Human Necessities – 61 – M

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A61M 15/00 (2006.01) B01F 11/02 (2006.01) B65B 1/24 (2006.01)

Patent

CA 2646420

The present invention relates to the treatment of dry powder formulations, doses of which are measured out and placed into receptacles such as blisters or capsules, to be dispensed by a dry powder inhaler device (DPI). In particular, the present invention relates to methods of agitating a dose of a dry powder formulation to ensure that any compacted powder is broken up. It is easier to extract a loose powder from a receptacle than it is to extract powder which is compacted and so ensuring that the powder in a receptacle is not compacted can, in turn, lead to improvements in the administration of the powder formulation to the lung of the patient.

La présente invention concerne le traitement de formules de poudre sèche dont les doses sont mesurées et placées dans des réceptacles tels que des blisters ou des capsules, pour être libérées par un dispositif d'inhalation de poudre sèche (IPS). En particulier, la présente invention concerne des méthodes d'agitation d'une dose de formule de poudre sèche pour s'assurer que la poudre est bien décompactée. Il est plus simple d'extraire d'un réceptacle une poudre décompactée qu'une poudre compactée ; ainsi, s'assurer que la poudre du réceptacle n'est pas compactée peut alors entraîner des améliorations de l'administration de la formule de poudre au niveau du poumon du patient.

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