Patent ID: 6345617
Filing Date: 2002-02-12
Classification: A61M

Abstract:
An aerosol medication delivery apparatus for use with a pressurized metered dose inhaler canister having medication and a propellant contained therein under pressure, where the pressurized metered dose inhaler canister has a discharge orifice from which the medication and the propellant can be discharged forming an aerosol, the apparatus comprising:a chamber housing having an input end and an output end and defining an interior space, wherein said input end is adapted to receive a medication discharged from the discharge orifice of a pressurized metered dose inhaler canister into said interior space and said chamber housing having a central axis and a downstream end; and a containment baffle located at said downstream end of said chamber housing to partially block said output end, wherein said containment baffle has a curved portion located along and intersecting said central axis of said chamber housing, wherein said curved portion of said containment baffle remains fixed along said central axis relative to said output end of said chamber housing, and wherein said curved portion has a concave surface facing said input end of said chamber housing.