Importance

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Abstract

An inhalation device of the type adapted to receive and locate an aerosol container designed to administer a multiplicity of metered doses, said aerosol container having a composition under pressure therein and having metering valve means including a valve stem and associated metering means, the valve stem having an axial discharge tube extending therethrough for discharge of a metered dose upon actuation of said metering valve means by depression of said valve stem, said inhalation device comprising a body having a skirt adapted to receive and locate said aerosol container in a first end thereof and a head-piece connected to a second end of said skirt, a mouth-piece extending from said head-piece and in communication therewith, and an audible signal generating means, said head-piece having actuating means for said metering valve means and a discharge passageway leading to a discharge orifice directed towards said mouth-piece, said actuating means being engageable with the valve stem upon location of the container within the skirt and operable to actuate the metering valve means whereby a metered dose is discharged through the valve stem discharge tube and the discharge passageway and discharge orifice into the mouth-piece, wherein said audible signal generating means is located in said air-passageway within the body upstream of said discharge orifice and surrounds the actuating means for the metering valve means, and is actuatable upon inhalation through said mouth-piece when said inhalation device is in engagement with said container.

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First Claim