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    • 10. 发明申请
    • METHOD FOR DETERMINING CAUSE OF THE PROLONGATION OF BLOOD COAGULATION TIME
    • 用于确定血液凝聚时间延长的原因的方法
    • US20110129862A1
    • 2011-06-02
    • US12999527
    • 2009-06-16
    • Remi NakamuraChizuru MorikawaHiroyuki SunagaHirokazu Yago
    • Remi NakamuraChizuru MorikawaHiroyuki SunagaHirokazu Yago
    • C12Q1/56G01N33/86
    • G01N33/86
    • Provided is a method of accurately and easily determining a cause of the prolongation of blood coagulation time.The method of determining a cause of the prolongation of blood coagulation time in test plasma includes (1) measuring the blood coagulation time of samples including (a) the test plasma only, (b) normal plasma only, and (c) the test plasma and the normal plasma mixed at least at a mixing ratio, (2) drawing a polygonal line graph by plotting the measurement results of the samples (a), (b) and (c), with the vertical axis representing the blood coagulation time or the prolongation ratio of blood coagulation time and the horizontal axis representing the mixing ratio or mixing proportion of the test plasma or the normal plasma, and thereby determining the area A under the polygonal line and the area B under a line segment that connects the plotted measurement results of the samples (a) and (b), (3) calculating the ratio of the area (A−B) obtained by subtracting the area B from the area A, with respect to the area B, ((A−B)/(B)):area ratio X), (4) performing the steps of (1) and (2) for a coagulation factor inhibitor-positive plasma, and thereby determining in advance a standard area ratio Y, and (5) comparing the area ratio X and the standard area ratio Y, and determining the test plasma as a coagulation factor inhibitor type in the case where Y≦X, or as a coagulation factor deficient type in the case where Y>X.
    • 提供了准确且容易地确定凝血时间延长的原因的方法。 测定血浆凝血时间延长的原因的方法包括:(1)测定样品的凝血时间,包括(a)仅测试血浆,(b)只有正常血浆,(c)测试血浆 和至少以混合比混合的正常等离子体,(2)通过绘制样品(a),(b)和(c)的测量结果绘制折线图,​​垂直轴代表凝血时间,或 血液凝固时间的延长率和横轴表示试验等离子体或正常等离子体的混合比例或混合比例,由此确定在折线下面积A和连接图形测量值的线段下的面积B 样品(a)和(b)的结果,(3)计算通过从面积A减去面积B而获得的面积(A-B)相对于面积B的比例((A-B) /(B)):面积比X),(4)进行(1)和(2)的步骤 凝血因子抑制剂阳性血浆,由此预先确定标准面积比Y,和(5)比较面积比X和标准面积比Y,并将测试血浆确定为凝血因子抑制剂类型, Y,X,或作为Y> X的情况下的凝血因子缺陷型。