Powder inhalator
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United States of America Patent
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Jun 14, 1994
Grant Date -
N/A
app pub date -
Aug 14, 1992
filing date -
Feb 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A powder inhaler includes a housing with a reservoir for a powdery drug and a gas passage duct extending through the housing. A metering device is provided for supplying metered quantities of the powdery drug from the reservoir to the gas passage duct. A secondary flow separating chamber is arranged in communication with the gas passage duct.
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