A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 15/00 (2006.01)
Patent
CA 2325530
A powder inhaler for administering powder by inhalation, comprising a chamber (58) which includes a base member (12) and a peripheral wall member (48), wherein the chamber (58) includes a first inlet (36) through which a first stream of air containing powder is in use drawn on inhalation by a user and a plurality of second inlets (66, 67, 68, 69, 100) at the junction between the base member (12) and the peripheral wall member (48) through which a plurality of second streams of air of combined lesser flow than the first stream of air are in use drawn on inhalation by the user so as to minimise retention of powder at the junction between the base member (12) and the peripheral wall member (48).
Cet inhalateur permettant l'administration de poudre, comporte une chambre (58) comprenant une base (12) et une paroi périphérique (48). Cette chambre (58) est pourvue d'un premier orifice d'admission (36), par lequel un utilisateur aspire à chaque inhalation un premier jet d'air contenant de la poudre, et de plusieurs autres orifices d'admission (66, 67, 68, 69, 100) situés au point de jonction entre la base (12) et la paroi périphérique (48), par lesquels l'utilisateur aspire, à chaque inhalation, plusieurs jets d'airs d'un débit combiné inférieur à celui du premier jet susmentionné, ce qui permet de réduire la retenue de poudre au point de jonction entre la base (12) et la paroi périphérique (48).
Astrazeneca Ab
Fetherstonhaugh & Co.
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