Method and System for Quantitative Hemoglobin Determination
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United States of America Patent
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Issued Date -
Mar 19, 2009
app pub date -
Apr 27, 2007
filing date -
May 5, 2006
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Abandoned
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Abstract
A method for quantitative hemoglobin determination in undiluted, unhemolyzed whole blood is provided which comprises: acquiring a sample of unaltered whole blood into a capillary cuvette, presenting the cuvette to a set-up for an absorption measurement, delaying absorption measurement for a determined period of time, performing a first absorption measurement at a first wavelength in the range 490-520 nm directly on the sample in the cuvette, further conducting a second absorption measurement at a second wavelength different from the first wavelength and at which the absorption is substantially smaller than at the first wavelength, and processing results of the first and second absorption measurements to determine the concentration of hemoglobin in the sample. A system for implementing the method also is provided.
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