Powder inhalator

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2179202

A device for dispensing doses of powdered material comprises a housing (12, 10; 100) which houses a cylindrical container (20: 158). The container has a number of helically arranged compartments (159) each of which contains a respective dose of powdered material. In order to dispense the material from a compartment, that compartment is moved into registry with an airway in the device by means of an indexing mechanism, and the user sucks on a mouthpiece (10, 102) on the housing, which mouthpiece communicates with an air inlet (34, 180) via the airway. The flow of air through the airway ejects the dose of material. The container can constitute a replaceable cartridge. The device isparticularly suitable for use as an inhaler for dispensing powdered medicament.

Un dispositif destiné à distribuer des doses d'une substance pulvérulente comprend un boîtier (12, 10; 100) logeant un contenant cylindrique (20; 158) doté d'un certain nombre de compartiments (159) disposés en hélice et contenant chacun une dose respective de substance pulvérulente. Pour distribuer cette substance depuis un compartiment, ce compartiment est déplacé de sorte qu'il soit mis en regard d'un passage à air situé dans le dispositif, au moyen d'un mécanisme d'indexage, et l'utilisateur aspire sur l'embout buccal (10, 102) du boîtier, cet embout communiquant avec une arrivée d'air (34, 180) par l'intermédiaire d'un passage d'air. La circulation de l'air dans le passage d'air provoque l'éjection d'une dose de substance. Le contenant cylindrique peut être une cartouche remplaçable. Ce dispositif est particulièrement conçu pour être utilisé en tant qu'inhalateur destiné à distribuer un médicament pulvérulent.

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