METHOD AND DEVICE FOR DELIVERING AEROSOLIZED MEDICAMENTS

摘要

A device for accurately delivering aerosolized doses of a medicament dispers es a measured amount of drug (40) in a measured volume of carrier gas (22) and transfers the resulting aerosol to a chamber (42) prior to inhalation by a patient. The chamber (42) is filled efficiently with the aerosol, and inhalation by the patient draws the aerosol dose into the lungs. This is followed by the inhalation of atmospheric air (96) that will push the initial dose we ll into the lung interior. The apparatus optimally includes a dose regulator (13a), a counter (13c), a clock (13e), a dose memo ry (30) and a signal (32) to indicate when a dose is ready by inhalation. Optimal chamber designs are disclosed.