Nebulizer device for medical aerosols

A nebulizer device including a mesh aerosol generator combined with an inhalation chamber and a container designed to contain the medicine in liquid form with mesh connected to the container and in contact with the medicine and allowing the passage of the medicine then the generation of particles of medicine on the other side of the mesh in the inhalation chamber, characterized in that the inhalation chamber is formed with three openings and one single valve, said valve being a one-way expiratory valve, a said first opening being connected to the patient and used for the transport and administration of the particles from the device to the patient, the said first opening being placed upstream of the aerosol generator, a second opening placed upstream of the device aerosol generator and allowing the passage of air from the outside of the chamber to the inside of the inhalation chamber, and allowing the complete ventilation of the inside of the inhalation chamber, a third opening, placed downstream of the aerosol generator and upstream of the said first opening, provided with a single one-way expiratory valve allowing the exhalation of the air from the patient through this third opening, the said third opening being closed by means of the one-way expiratory valve during the inhalation phases and open during the exhalation phases, and whereby the resistance of the said third opening, combined with that of the expiratory valve is less than the resistance of the said second opening in order to limit the escape of the particles produced in the inhalation chamber, through the said second opening, and whereby the second opening is designed to resist the air inhaled by the patient and limit the rate of the air inhaled by the patient.