Patent ID: 6892727

Claim:
A device for de-aggregating and into air dispersing particles of a finely divided dry medication powder loaded onto a substrate member, the powder made available for inhalation by means of a dry powder inhaler, wherein the device, referred to as a powder Air-razor, has a nozzle with a nozzle outlet and a nozzle inlet and a nozzle inlet aperture positioned adjacent to the available powder; a suction of air, when applied to the nozzle outlet, creates a local, high velocity air stream into said nozzle inlet aperture and out through said nozzle outlet; a relative motion, when introduced between the nozzle and powder onto the substrate member, is arranged such that the nozzle inlet, and the local, high velocity air stream going into the nozzle inlet aperture, traverses the available medication powder, thereby amounting to a powder Air-razor in releasing and dispersing the powder; particle aggregates within the finely divided medication powder are de-aggregated by being subjected to shearing stresses, inertia and turbulence of air in the local, high velocity air stream going into said nozzle inlet aperture, whereby the particles of the finely divided medication powder are gradually dispersed into the air as available powder is gradually accessed by the local, high velocity air stream of the powder Air-razor when the nozzle and the powder are moved in relation to each other.