Optics: measuring and testing – Blood analysis
Reexamination Certificate
2009-03-20
2011-12-20
Stafira, Michael P (Department: 2886)
Optics: measuring and testing
Blood analysis
C356S040000
Reexamination Certificate
active
08081303
ABSTRACT:
A method for analyzing a blood sample is provided that includes the steps of: a) providing a blood sample having one or more first constituents and one or more second constituents, which second constituents are different from the first constituents; b) depositing the sample into an analysis chamber adapted to quiescently hold the sample for analysis, the chamber defined by a first panel and a second panel, both of which panels are transparent; c) admixing a colorant with the sample, which colorant is operative to cause the first constituents and second constituents to fluoresce upon exposure to predetermined first wavelengths of light, and which colorant is operative to absorb light at one or more predetermined second wavelengths of light; d) illuminating at least a portion of the sample containing the first constituents and the second constituents at the first wavelengths and at the second wavelengths; e) imaging the at least a portion of the sample, including producing image signals indicative of fluorescent emissions from the first constituents and the second constituents and the optical density of the first constituents and the second constituents; f) determining a fluorescence value for each the first constituents and second constituents using the image signals; g) determining an optical density value for each of the first constituents and second constituents, which optical density is a function of the colorant absorbed by the constituents, using the image signals; and h) identifying the first constituents and the second constituents using the determined fluorescence and optical density values.
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Lalpuria Niten V.
Levine Robert A.
Unfricht Darryn W.
Wardlaw Stephen C.
Abbott Point of Care Inc.
O'Shea Getz P.C.
Stafira Michael P
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