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A - Human Necessities – 61 – M

Patent

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A61M 15/00 (2006.01)

Patent

CA 2304792

A spacer for use with a powdered medicament inhaler. The spacer comprises a slender curved body, which defines a chamber, an inlet communicating with the chamber and an outlet communicating with the chamber. The inlet and outlet are arranged so that in use an airstream passing from the inlet through the chamber to the outlet is caused by the slender curved body to following a rotational flow path. This selectively extracts particles of powdered medicament entrained in the airstream.

On décrit un spacer qui s'utilise avec un inhalateur de médicament en poudre. Le spacer comprend un corps mince incurvé délimitant une chambre, une entrée communiquant avec la chambre et une sortie communiquant avec la chambre. Ladite entrée et ladite sortie sont disposées de sorte que, pendant l'utilisation, le corps mince incurvé provoque le passage d'un courant d'air de l'entrée à la sortie à travers la chambre suivant un circuit d'écoulement rotationnel. Ainsi, des particules du médicament en poudre sont extraites sélectivement et entraînées dans le courant d'air.

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