Aerosol forming device for use in inhalation therapy

Abstract

The present invention relates to the inhalation delivery of aerosols containing small particles. Specifically, it relates to a device that forms drug containing aerosols for use in inhalation therapy. In a device aspect of the present invention, a device for delivering drug containing aerosols for inhalation therapy is provided. The device includes a housing and an airway that has a gas/vapor mixing airway. The airway further includes a subassembly, which has a metallic substrate coated on its surface with a composition comprising a drug.

1 . A device for delivering drug containing aerosols for inhalation therapy including: a housing; and, an airway including a gas/vapor mixing area, wherein the airway includes a subassembly, and wherein the subassembly includes a metallic substrate, and wherein a composition comprising a drug is coated on the substrate. 
     
     
         2 . The device according to  claim 1 , wherein the device further includes a heater system. 
     
     
         3 . The device according to  claim 1 , wherein the airway contains a restricted cross-sectional area along the gas/vapor mixing area. 
     
     
         4 . The device according to  claim 1 , wherein the metallic substrate comprises stainless steel. 
     
     
         5 . The device according to  claim 2 , wherein the heater system is an inductive heater system. 
     
     
         6 . The device according to  claim 3 , wherein the airway includes means for causing turbulence as air moves through the airway. 
     
     
         7 . The device according to  claim 5 , wherein the inductive heater system includes a ferrite toroid. 
     
     
         8 . The device according to  claim 6 , wherein the device further includes an inductive heater system. 
     
     
         9 . The device according to  claim 8 , wherein the drug in the composition is an antiparkinsonian drug. 
     
     
         10 . The device according to  claim 8 , wherein the drug in the composition is an opioid. 
     
     
         11 . The device according to  claim 8 , wherein the drug in the composition is an anxiolytic.