Patent ID: 6799571
Filing Date: 2004-10-05
Classification: A61M

Abstract:
A medicinal powder delivery system utilizing a gaseous propellant source, comprising:a. a nozzle including an entrance and an exit for passing the medicinal powder therethrough; b. a conduit, said conduit including an entrance and an exit for passing the gaseous propellant therethrough, said conduit exit lying adjacent said nozzle exit; c. means for shaping the flow characteristics of the gaseous propellant emanating from the gaseous propellant source, said means for shaping the flow characteristics of said gaseous propellant comprising a tube having an inner bore and an outer surface, said bore of said tube communicating with said conduit, said outer surface of said tube including a plurality of recesses for interacting with gaseous propellant emanating from the gaseous propellant source; d. a vessel, said vessel including an entrance, an exit, and a chamber, said vessel entrance positioned adjacent said nozzle exit and said conduit exit to receive the medicinal powder, said plurality of recesses at said outer surface of said tube passing gaseous propellant to said chamber for mixing with the medicinal powder, said exit of said vessel permitting egress of said gaseous propellant and said medicinal powder.