UNIT DOSE CARTRIDGE AND DRY POWDER INHALER

摘要

A dry powder inhaler having improved aerodynamic properties for diluting, dispersing, and metering drug particles for increasing the efficiency of pulmonary drug delivery to a patient is described. The inhaler comprises, in general, a housing (20) having an air intake (15), an air flow-control/check - valve (180), a mixing section (30) and a mouthpiece (40). A cartridge loaded with a single dose of medicament can be installed in the mixing section.