Method to determine the concentration of anticoagulants
    3.
    发明授权
    Method to determine the concentration of anticoagulants 失效
    确定抗凝剂浓度的方法

    公开(公告)号:US5702912A

    公开(公告)日:1997-12-30

    申请号:US564986

    申请日:1995-11-30

    IPC分类号: C12Q1/56 G01N33/53 G01N33/86

    摘要: The present invention relates to a method to determine the concentration of anticoagulants as a function of the inhibition of thrombin formation in an assay mixture. The assay mixture is composed of two reagents and the diluted plasma sample. The diluted plasma sample containing an anticoagulatory substance is mixed with a clotting factor reagent, which is a combination of an excess amount of purified coagulation factors of the endogenous system, phospholipids and a weak thrombin inhibitor, which can be potentiated by an anticoagulatory substance. Then a coagulation cascade activator and calcium chloride, an activator reagent, is added to the mixture and formed thrombin is measured after a chosen incubation time. A proportionality between the inhibition of the thrombin formation and the anticoagulatory active components allows for a determination of the concentration of anticoagulatory active components in the sample.

    摘要翻译: 本发明涉及一种确定抗凝血剂浓度作为测定混合物中凝血酶形成抑制的函数的方法。 测定混合物由两种试剂和稀释的血浆样品组成。 含有抗凝物质的稀释血浆样品与凝血因子试剂混合,凝血因子试剂是过量的内源性系统的纯化凝血因子,磷脂和弱凝血酶抑制剂的组合,其可以被抗凝物质加强。 然后将凝血级联活化剂和氯化钙(活化剂)加入到混合物中,并在选择的孵育时间后测量形成的凝血酶。 抑制凝血酶形成与抗凝活性成分之间的比例允许测定样品中抗凝活性成分的浓度。

    Sample tube carrier
    4.
    发明授权
    Sample tube carrier 失效
    样品管载体

    公开(公告)号:US5651941A

    公开(公告)日:1997-07-29

    申请号:US488894

    申请日:1995-05-17

    摘要: A self-adjusting linkable carrier for sample tubes, cuvettes, cells and the like comprising a longitudinally symmetrical vertically oriented polygonal body having two pairs of orthogonally disposed opposed vertical faces and a horizontal bottom sliding surface is disclosed. The top surface of the body is provided with a central bore opening into a vertical cavity adapted to releasably receive and retain a wide variety of sample tube configurations in a stable vertical orientation. Machine readable indicia may be provided on the external surface and vertical slots are provided in each external face to provide access to the central vertical cavity. A releasably locking horizontally aligned dovetail feature is provided to link adjacent carriers into conveniently handled racks or magazines which may be assembled and disassembled by machine. Additional horizontally sliding indexing elements are provided to facilitate the stable storage and transport of the carrier.

    摘要翻译: 公开了一种用于样品管,比色皿,电池等的自调节可连接载体,其包括纵向对称的垂直取向的多边体,其具有两对正交设置的相对的垂直面和水平底部滑动表面。 本体的顶表面设置有一个中心孔,该中心孔开放到垂直腔中,适于可释放地接收和保持在稳定的垂直方向上的各种样品管构型。 可以在外表面上提供机读标记,并且在每个外表面中设置垂直槽以提供对中心垂直腔的通路。 提供可释放地锁定的水平对准的燕尾形特征,以将相邻的托架连接到可由机器组装和拆卸的便利处理的机架或杂志中。 提供附加的水平滑动分度元件以便于载体的稳定的储存和运输。

    Measurement of color reactions by monitoring a change of fluorescence
    6.
    发明授权
    Measurement of color reactions by monitoring a change of fluorescence 失效
    通过监测荧光的变化来测量显色反应

    公开(公告)号:US5565328A

    公开(公告)日:1996-10-15

    申请号:US579089

    申请日:1995-12-27

    IPC分类号: C12Q1/04 C12Q1/26 H01L21/306

    CPC分类号: C12Q1/04 Y10S435/968

    摘要: The present invention relates to a method to determine the concentration of an unknown substance in a colorimetric reaction using a fluorometric reader. The change in color can be monitored by observing the change of fluorescence of a known amount of a suitable fluorophore in the reaction chamber. Under appropriate conditions the absorption spectrum of the chromophore overlaps with the emission spectrum of the fluorophore thereby allowing the change in fluorescence to be proportional to the intensity of color in the reaction and thus, proportional to the quantity of the substance of interest. Specifically, 8-methoxypyrene tri-sulfonic acid is used as the fluorophore.

    摘要翻译: 本发明涉及使用荧光读数器确定比色反应中未知物质的浓度的方法。 可以通过观察已知量的合适的荧光团在反应室中的荧光变化来监测颜色变化。 在合适的条件下,发色团的吸收光谱与荧光团的发射光谱重叠,从而允许荧光的变化与反应中颜色的强度成比例,因此与感兴趣的物质的数量成比例。 具体地说,使用8-甲氧基芘三磺酸作为荧光团。

    Inter-laboratory performance monitoring system
    8.
    发明授权
    Inter-laboratory performance monitoring system 失效
    实验室间性能监测系统

    公开(公告)号:US5532941A

    公开(公告)日:1996-07-02

    申请号:US272239

    申请日:1994-07-08

    申请人: Lawrence I. Lin

    发明人: Lawrence I. Lin

    摘要: A system and method for producing quality control evaluation information for each instrument in a large group of instruments making up a peer group which periodically (such as daily) run a set of control samples from a common lot of control materials. The control data from all instruments is reported electronically to a central station which collects all of the data and stores it along with identification information. The central station selects a golden peer group of the instruments which meet certain minimum operating criteria, and determines control targets from the golden peer group using techniques which assure horizontal and vertical robustness, so as to eliminate the need for any manual editing of the control data. A concordance correlation coefficient is determined for each instrument against the control targets, with the CCC covering an interval (such as a month). The distribution of CCC's for all instruments in the peer group is determined, and each instrument is rated with respect to the distribution. The CCC evaluation is also used to select the golden peer group for the next interval.

    摘要翻译: 在构成对等组织的大型仪器组中每个仪器生产质量控制评估信息的系统和方法,其定期(例如每天)从一大批控制材料运行一组对照样品。 来自所有仪器的控制数据以电子方式报告给收集所有数据并将其与识别信息一起存储的中心站。 中央电视台选择符合某些最低运作标准的黄金同伴组,并通过确保水平和垂直稳健性的技术确定黄金同伴组的控制目标,从而消除对控制数据的任何手动编辑的需要 。 每个仪器针对控制目标确定一致性相关系数,CCC覆盖间隔(如一个月)。 确定了CCC对同行群体中所有工具的分配情况,并对每个工具进行分配评估。 CCC评估也用于在下一个时间间隔内选择黄金对等体组。

    In situ assay of amplified intracellular mRNA targets
    10.
    发明授权
    In situ assay of amplified intracellular mRNA targets 失效
    扩增细胞内mRNA靶的原位测定

    公开(公告)号:US5506105A

    公开(公告)日:1996-04-09

    申请号:US216233

    申请日:1994-03-22

    申请人: Paul V. Haydock

    发明人: Paul V. Haydock

    IPC分类号: C12Q1/68 C12Q1/70 C12P19/34

    摘要: In an in situ hybridization assay, cells are fixed under conditions which preserve essential morphology, followed by transcription-based nucleic acid amplification of intracellular mRNA targets. The amplified targets are visualized by hybridizing labelled probes to the target sequences. The assay thereby provides a convenient method for detecting specific gene expression associated with morphologic characteristics of diagnostic significance.

    摘要翻译: 在原位杂交测定中,细胞在保持基本形态,然后是基于转录的核酸扩增细胞内mRNA靶标的条件下固定。 通过将标记的探针杂交到靶序列来显现扩增的目标。 因此,该测定提供了用于检测与具有诊断意义的形态学特征相关的特异性基因表达的方便方法。