Disposable dispensing cartridge for medical assay instrumentation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 25, 2015
Grant Date -
Oct 6, 2011
app pub date -
Mar 24, 2011
filing date -
Apr 6, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A disposable dispensing cartridge comprises a reservoir adapted to contain a solution to be dispensed; a chamber in fluidic communication with the reservoir through a first unidirectional valve. The chamber comprises an outlet portion with a second unidirectional valve allowing passage of the solution out of the chamber. The disposable cartridge is connectable via a second connecting portion to a pressurizing device. The pressurizing device is adapted to apply a reduced pressure within the chamber; drawing a predetermined volume of solution from the reservoir, through the first unidirectional valve, into the chamber; and to apply a raised pressure within the chamber, drawing the determined volume of solution out of the chamber, through the second unidirectional valve. The second connecting portion comprises a check valve being arranged to allow gas, but not the solution, to flow in and/or out of the chamber via the second connecting portion. The disposable cartridge is simple and inexpensive to manufacture.
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