Patent ID: 7708011

Claim:
A dry powder inhaler, comprising: a mouthpiece for dispersing pharmaceutical drug formulations, a Laval nozzle communicating with the mouthpiece, an inlet channel, whereby inhalation air is drawn in through the inlet channel, and a swirling flow of the inhalation air is created between the inlet channel and the mouthpiece, a multidose blister container for supplying a powder formulation in communication with the Laval nozzle, and an auxiliary energy source in the form of a pressure medium system in communication with the multidose blister container for supplying the powder formulation, wherein upon activation of the pressure medium system, a gaseous pressure medium is released into the multidose blister container for supplying the powder formulation, and forms an aerosol with the powder formulation in such a way that powder particles are present in dispersed form within the gaseous pressure medium prior to entering the Laval nozzle, entering the mouthpiece, and leaving the dry powder inhaler.