Patent ID: 7832397
Filing Date: 2010-11-16
Classification: A61M

Abstract:
1. An aerosol powder delivery device, comprising: a hollow device; aerosolizable powder adapted to produce aerosol particles within the hollow device, wherein at least a portion of the aerosol particles comprise the same material as the aerosolizable powder; a secondary powder within the hollow device, wherein at least a portion of the aerosolizable powder, the secondary powder, or both are about 1.0 mm to about 4.0 mm in at least one dimension, an upstream filter adapted to prevent escape of the aersolizable powder and the secondary powder from the hollow device; a downstream filter adapted to prevent escape of the aersolizable powder and the secondary powder from the hollow device; and a secondary filter positioned adjacent to the downstream filter and adapted to control the size of aerosol particles passing therethrough.