Devices and methods for nebulizing fluids for inhalation

Details Devices and methods for nebulizing fluids for inhalation Devices and methods for nebulizing fluids for inhalation

A - Human Necessities

61

M

A61M 11/00 (2006.01) A61M 11/06 (2006.01) A61M 15/00 (2006.01) B05B 1/26 (2006.01) B05B 7/00 (2006.01) B05B 7/30 (2006.01) B05B 7/32 (2006.01) B05B 11/02 (2006.01) B05B 17/06 (2006.01) A61M 16/00 (2006.01)

Patent

CA 2472644

A nebulizer comprising an aerosol generator (100) and a titration mechanism (20) comprising a dosing mechanism (30), a screw assembly (50), a plunger (60) and an actuator (40), wherein the dosing mechanism is rotatably mounted in the nebulizer and the plunger is mounted in the nebulizer to travel along a longitudinal axis (62) substantially perpendicular to the plane of rotation of the dosing mechanism. The actuator is mounted to the nebulizer to travel in the direction (42) of the longitudinal axis. The screw mechanism allows the rotation of the dosing mechanism to fix a variable distance of travel of the plunger based on the selected dose, without moving the plunger longitudinally. This allows the user to verify and if necessary correct the selected dose prior to any drug being released from the vial. Operation of the actuator causes longitudinal movement, through the screw mechanism, to the plunger.

L'invention concerne un nébuliseur qui comporte: un générateur d'aérosol (100); un mécanisme de titration (20) comprenant un système de dosage (30); un ensemble vis (50); un plongeur (60); et un actionneur (40). Le système de dosage est monté rotatif dans le nébuliseur, et le plongeur est monté dans le nébuliseur pour un déplacement le long d'un axe longitudinal (62) sensiblement perpendiculaire au plan de rotation du système de dosage. L'actionneur est monté sur le nébuliseur pour un déplacement dans le sens (42) de l'axe longitudinal. L'ensemble vis permet la rotation du système de dosage, donnant une distance de déplacement variable pour le plongeur en fonction de la dose établie, sans déplacement longitudinal du plongeur. Ainsi, on peut vérifier et éventuellement corriger ladite dose avant la libération du médicament depuis le flacon. L'actionneur engendre un mouvement longitudinal transmis au plongeur via l'ensemble vis.

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