Powder inhaler
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United States of America Patent
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-
Feb 19, 2002
Grant Date -
N/A
app pub date -
Jun 18, 1999
filing date -
Dec 18, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dry powder inhaler comprises a body 1 defining a storage chamber for a powder and further defining an inhalation passage 2 through which air is drawn via a mouthpiece 3. A flow duct passing through the mouthpiece includes a circulatory section 25 in which the flow duct is in the form of one or more passageways. The flow duct further includes a cyclone chamber 35 between the circulatory section and the outlet of the mouthpiece.
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Family
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