Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Avraham Shekalim0
Date of Patent
December 25, 2007
Patent Application Number
11379791
Date Filed
April 23, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A drug delivery device includes a pressurized reservoir in communication with a flow path to an outlet. The flow path includes two normally-closed valves and a flow restriction. A pressure measurement arrangement measures a differential fluid pressure between two points along the flow path which span at least part of the flow restriction, one of the points being between the valves. A controller selectively opens the valves to deliver a defined quantity of the liquid medicament to the outlet.
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