Unit dose cartridge and dry powder inhaler
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United States of America Patent
Stats
-
Dec 16, 2008
Grant Date -
Sep 23, 2004
app pub date -
Sep 4, 2003
filing date -
Jul 23, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dry powder inhaler having improved aerodynamic properties for diluting, dispersing, and metering drug particles for increasing the efficiency of pulmonary drug delivery to a patient is described. The inhaler comprises, in general, a housing having an air intake, an air flow-control/check-valve, a mixing section and a mouthpiece. A cartridge loaded with a single dose of medicament can be installed in the mixing section.
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Family
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