Aerosol producing device

Details Aerosol producing device Aerosol producing device

1984-09-18

1987-10-27

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Including mixing or combining with air, gas or steam

12820018, 12820021, 239 11, 239338, 239370, 239426, 239434, 2395891, 261 782, 261DIG65, A61M 1106

Patent

active

047024151

ABSTRACT:
An apparatus and method are disclosed for applying an active ingredient as an aerosol. A transducer (22) for creating an aerosol includes a propellant inlet (96) and a chamber defined by at least one chamber wall (128) confluent with the propellant inlet. A bluff body (112) is provided for creating at least one vortex (152) in the chamber when the propellant enters the propellant inlet in a supersonic flow condition. An orifice (118, 146) spaced apart from the bluff body and separated therefrom by the chamber wall is provided for creating an exiting vortex (154).

REFERENCES:
patent: 2582805 (1952-01-01), Trumbour et al.
patent: 3230924 (1966-01-01), Hughes
patent: 4109862 (1978-08-01), Hughes
patent: 4241877 (1980-12-01), Hughes
"Metered-Dose Aerosol Administration", by Martin Tobin, MD (paper presented at American Assn. of Respiratory Therapy 28th Annual Convention and Exposition, Oct. 30-Nov. 2, 1982, New Orleans, La.), pp. 16-20.
"Aerosolized Drug Delivery Accessories", by A. J. Curie, S. Ertefaie & J. J. Sciarra, Aerosol Age, Mar. 1984, pp. 24-26.

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