Multiple dose condensation aerosol devices and methods of forming condensation aerosols

Abstract

Devices and methods of entraining a substance within an airflow are disclosed. Condensation aerosol delivery devices and methods of consistently producing multiple doses of a substance, such as a drug, having high purity, high yield, characterized by a particle size distribution appropriate for pulmonary delivery, and which can be administered to a user in a single dose are also disclosed.

1 . A device for producing a condensation aerosol comprising:
 an electrically resistive heating element comprising a metal foil configured to vaporize a substance disposed thereon; and   means for condensing the vaporized substance to produce a condensation aerosol comprising the substance.   
     
     
         2 . The device of  claim 1 , wherein the metal foil is stainless steel. 
     
     
         3 . The device of  claim 1 , wherein the thickness of the metal foil is less than 0.01 inches. 
     
     
         4 . The device of  claim 1 , wherein the surface area of the metal foil ranges from 0.01 cm 2  to 50 cm 2 . 
     
     
         5 . The device of  claim 1 , wherein the metal foil comprises a metal layer plated on the metal foil. 
     
     
         6 . The device of  claim 5 , wherein the metal layer is chosen from gold, silver, nickel, and copper. 
     
     
         7 . The device of  claim 1 , wherein the metal foil is arched.