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    • 151. 发明申请
    • Method of preventing white blood cell interferences to red blood cell measurements of a blood sample
    • 防止白细胞干扰血液样本红细胞测量的方法
    • US20070054403A1
    • 2007-03-08
    • US11210346
    • 2005-08-24
    • Min ZhengJing LiYi LiMichael Switzer
    • Min ZhengJing LiYi LiMichael Switzer
    • G01N33/48
    • G01N33/491Y10T436/10Y10T436/101666Y10T436/107497Y10T436/25Y10T436/25125
    • Methods of prevention and correction of white blood cell interferences to the measurements of mean cell volume (MCV), red blood cell concentration (RBC) and hematocrit (Hct) of a blood sample are disclosed. The interference to MCV can be prevented by identifying a valley between the red blood cell and white blood cell modes on the red blood cell distribution histogram, defining a red blood cell region using the valley and calculating MCV within the defined region. Alternatively, a curve fit of the white blood cell population on the red blood cell distribution histogram can be used to exclude the white blood cells. RBC can be corrected by subtracting the white blood cell concentration obtained from the analysis of a second aliquot sample, when the white blood cell concentration (WBC) exceeds a predetermined criterion. Hct of the blood sample can be calculated using the obtained MCV and RBC.
    • 公开了对血液样本的平均细胞体积(MCV),红细胞浓度(RBC)和血细胞比容(Hct)的测量的白细胞干扰的预防和校正方法。 通过在红细胞分布直方图上识别红细胞和白细胞模式之间的谷,可以防止对MCV的干扰,使用谷定义红细胞区域并计算定义区域内的MCV。 或者,可以使用白细胞群体对红细胞分布直方图的曲线拟合来排除白细胞。 当白细胞浓度(WBC)超过预定标准时,可通过减去从第二等份样品的分析获得的白细胞浓度来校正RBC。 可以使用获得的MCV和RBC计算血液样品的Hct。
    • 159. 发明授权
    • Method for measurement of nucleated red blood cells
    • 有核红细胞测定方法
    • US06673618B1
    • 2004-01-06
    • US10226800
    • 2002-08-23
    • Yi LiJing LiTed W. Britton
    • Yi LiJing LiTed W. Britton
    • G01N3100
    • G01N15/12G01N15/14G01N33/80G01N2015/0069G01N2015/0073G01N2015/008G01N2015/1062Y10T436/10Y10T436/101666Y10T436/107497
    • A method for differentiating and enumerating nucleated red blood cells in a blood sample is described. The method includes the steps of lysing red blood cells of a blood sample with a lytic reagent, measuring nucleated blood cells by DC impedance measurement in a non-focused flow aperture, differentiating nucleated red blood cells from other cell types, and reporting nucleated red blood cells in the blood sample. The method further includes subtracting nucleated red blood cells and other interference materials from the count of remaining blood cells, and reporting a corrected white blood cell count of the blood sample. Additionally, the method further includes measuring spectrophotometric absorbance of the sample mixture at a predetermined wavelength of a hemoglobin chromogen formed upon lysing the blood sample, and reporting hemoglobin concentration of the blood sample.
    • 描述了一种用于分离和计数血液样品中有核红细胞的方法。 该方法包括用溶解试剂裂解血液样品的红细胞的步骤,通过非聚焦流动孔中的直流阻抗测量测量有核血细胞,将有核红细胞与其他细胞类型区分开,并报告有核红血 血样中的细胞。 该方法还包括从剩余血细胞计数中减去有核红细胞和其他干扰物质,并报告血样的校正白细胞计数。 此外,该方法还包括在裂解血液样品时形成的血红蛋白色原体的预定波长测量样品混合物的分光光度吸光度,并报告血液样品的血红蛋白浓度。