Aerosol container and a method for storage and administration of a pre-determined amount of a pharmaceutically active aerosol
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United States of America Patent
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Feb 21, 2012
Grant Date -
Oct 16, 2003
app pub date -
Apr 28, 2003
filing date -
Aug 27, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an aerosol container for pharmaceutically active aerosols that are to be administered in predetermined amounts and that are supplied in the container in the form of a suspension, the suspension also comprising, in addition to a pharmaceutically active substance, at least a propellant gas. The aerosol container has a metering valve that comprises a metering chamber and a valve stem. In a first position of the valve stem, the metering chamber is in communication with the interior of the container and has been filled with a predetermined amount of the aerosol. In a second position of the valve stem, the amount of aerosol disposed in the metering chamber is released. The propellant gas is an alternative propellant gas that is free of fluorochlorohydrocarbons, preferably a propellant gas that comprises only fluorohydrocarbons, and the inner wall of the container is coated with a plastics coating.
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