Device for oral administration of an aerosol for the rhinopharynx, the nasal cavities or the paranasal sinuses

摘要

A device for administration of an aerosol includes a generator of particles of size between 10 nm and 200 um, a mouthpiece or mouth mask for oral administration of the aerosol during the nasal exhalation phase or during the respiratory pause phase preceding nasal exhalation, and a source of gas or pressure for conveying the particles. The mouthpiece is airtight, extends beyond the teeth of the patient by a maximum length of 4 cm, and administers the aerosol for the nasal cavities, the rhinopharynx or the paranasal sinuses during aerosol administration phases, such that the is successively applied to the mouth, the rhinopharynx and then the nasal fossae and the sinuses, and then the aerosol escapes via one or both of the patient's nostrils. The device does not allow exhalation via the mouth during aerosol administration phases, and the aerosol particles not being directed to the lungs.

主权项

1. Aerosol administration device comprising a generator of particles of size between 10 nm and 200 μm for forming an aerosol, a mouthpiece or oral mask for oral administration of the aerosol initially into a mouth of a patient during a nasal expiration phase or during a respiratory pause phase preceding nasal expiration, and a source of gas or pressure for conveying the particles, wherein the particle generator is operated manually or automatically, the mouthpiece and particle generator constitute an airtight assembly adapted to be connected to the mouth of the patient during aerosol administration phases, the mouthpiece penetrates beyond teeth of the patient by a maximum length of 4 cm and administers aerosol, starting in the mouth, for the nasal cavities, rhinopharynx or paranasal sinuses during the aerosol administration phases, such that the aerosol is successively conveyed from the mouthpiece to the mouth, then the rhinopharynx, then the nasal fossae and sinuses, and then said aerosol escapes through one or both nostrils of the patient, and the device does not allow expiration through the mouth of the patient during the aerosol administration phases.