Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Particle count or volume standard or control
Reexamination Certificate
2007-10-15
2010-02-09
Wallenhorst, Maureen M (Department: 1797)
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
Particle count or volume standard or control
C436S008000, C436S016000, C436S017000, C436S018000, C436S063000, C436S174000, C436S175000, C435S002000
Reexamination Certificate
active
07659122
ABSTRACT:
Disclosed is a single population of simulated leukocyte granules prepared from mammalian whole white blood cells, which is useful in calibrators for a hematology analyzer, a calibrator which includes the single population of simulated leukocyte granules. Disclosed is also a method of preparing the single population of simulated leukocyte granules. The method of preparing single population of simulated leukocyte granules includes the actions of: obtaining mammalian whole white blood cells; treating the mammalian whole white blood cells with a hemolytic agent and a leukocyte treating liquid which includes an isotonic saline solution. The isotonic saline solution may include a fixative, an oxidizer, and a carbohydrate compound; fixing the treated mammalian whole white blood cells with a fixative; and suspending the fixed cells in a preservation medium for long-term preservation of fixed cells.
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Wallenhorst Maureen M
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