Device for flow rate limitation at low differential pressures
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United States of America Patent
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Apr 1, 2014
Grant Date -
Feb 10, 2011
app pub date -
Aug 3, 2010
filing date -
Aug 6, 2009
priority date (Note) -
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Abstract
A device for the flow rate limitation at low differential pressures, in particular for the limitation of the inhalation volume flow during the inhalation of therapeutic aerosols, comprising a housing with at least an inlet opening, at least an outlet opening and a flow channel arranged therebetween, wherein the flow channel is restricted by a flexible wall extending along the flow channel, characterized in that the flexible wall has a control area of less than 100 mm2.
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