Patent ID: 6123070
Filing Date: 2000-09-26
Classification: A61M

Abstract:
A powder dispenser comprising:a metering chamber (10);an expulsion channel (20) passing through said metering chamber (10); andmeans for delivering an air flow intended, when the dispenser is actuated, to pass along said expulsion channel (20) to empty said metering chamber (10),flowing means (100) adapted to configure the air flow in such a manner that it empties said metering chamber (10) completely, and wherein said flowing means (100) is disposed in the expulsion channel (20) outside and upstream from said metering chamber (10) in the flow direction of said air flow, wherein said flowing means is independent of the dimensions of said metering chamber,wherein said metering chamber (10) includes at least one portion of cross-sectional area greater than the cross-sectional area of said expulsion channel (20), forming at least one side zone (11), said flowing means (100) being adapted to direct at least a portion of the air flow into said at least one side zone (11) of said metering chamber (10) in such a manner as to empty said metering chamber (10) completely including in said at least one side zone.