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    • 6. 发明申请
    • HYBRID SPECTROPHOTOMETRIC MONITORING OF BIOLOGICAL CONSTITUENTS
    • 生物组分的混合分光光度法监测
    • WO2012096825A3
    • 2012-09-07
    • PCT/US2012020319
    • 2012-01-05
    • O2 MEDTECH INCZHANG WEIYU ZENGPINWANG SHIH-PING
    • ZHANG WEIYU ZENGPINWANG SHIH-PING
    • A61B5/1477
    • A61B5/1455
    • Systems, methods, and related computer program products for non-invasive NIR spectrophotometric (NIRS) monitoring of total blood hemoglobin levels and/or other blood constituent levels based on a hybrid combination of phase modulation spectrophotometry (PMS) and continuous wave spectrophotometry (CWS) are described. PMS-based measurements including both amplitude and phase information used in the determination of a non-pulsatile component of an absorption property for each of at least three distinct wavelengths are processed to compute PMS-derived intermediate information at least partially representative of a scattering characteristic. CWS-based measurements including amplitude information is processed in conjunction with the PMS-derived intermediate information to compute a pulsatile component of the absorption property. A metric representative of at least one chromophore level, such as the total blood hemoglobin level, is computed from the pulsatile component of the absorption property at the at least three wavelengths and displayed on an output display.
    • 基于相位调制分光光度法(PMS)和连续波分光光度法(CWS)的混合组合,用于非侵入式近红外分光光度(NIRS)监测总血红蛋白水平和/或其他血液成分水平的系统,方法和相关计算机程序产品, 被描述。 处理包括用于确定至少三个不同波长中的每一个的吸收特性的非脉动分量的振幅和相位信息的基于PMS的测量值,以计算至少部分表示散射特性的PMS导出的中间信息。 结合PMS导出的中间信息处理包括幅度信息的基于CWS的测量值,以计算吸收特性的脉动分量。 从至少三个波长处的吸收特性的脉动分量计算代表至少一个发色团水平的量度,例如总血红蛋白水平,并显示在输出显示器上。
    • 7. 发明申请
    • DETERMINING THE CONCENTRATION OF A BLOOD CONSTITUENT IN TUBING
    • 测定血液成分的浓度在软管组件
    • WO2012003989A3
    • 2012-03-08
    • PCT/EP2011003401
    • 2011-07-08
    • FRESENIUS MEDICAL CARE DE GMBHZHANG WEI
    • ZHANG WEI
    • A61B5/1455
    • A61B5/14557G01N21/31G01N21/359G01N21/51G01N33/49G01N2021/3144G01N2021/3181
    • The invention relates to a method and a device for determining the concentration of a blood constituent in tubing, in particular tubing (5) of an extracorporal blood circuit (I) of an extracorporal blood treatment unit. The invention also relates to an extracorporal blood treatment device comprising a device (11) for determining the concentration of a blood constituent. The claimed method and the claimed device relate to the correction of the influence of the tubing on the determination of the concentration of the blood constituent. In order to determine the correction factor k, a reference measurement is carried out with a liquid other than blood, in order to be able to determine the correlation between the intensity of emitted electromagnetic radiation in tubing which is filled with blood containing the blood constituent in a defined concentration, and in tubing which is filled with a liquid other than blood. The correction factor is then determined on the basis of the previously determined correlation between the intensity of the emitted electromagnetic radiation in tubing filled with blood and in tubing filled with a liquid other than blood and on the basis of the previously measured intensity of the electromagnetic radiation which is emitted by the tubing filled with a liquid other than blood.
    • 本发明涉及一种用于确定血液的成分的浓度中的软管线,在体外血液处理装置的体外血液回路(I)的特定的软管管线(5)的方法和装置。 此外,本发明涉及一种具有用于确定血液成分的浓度的装置(11)的体外血液处理的设备。 本发明的方法和本发明的装置是基于所述软管线到血液成分的浓度的确定的影响的校正。 为了确定校正因子K,参考测量与液体以外的血液进行以在一个管道,其填充有含有给定浓度的血液成分的血液的软管线输出耦合的电磁辐射的强度之间的关系,并 填充有血液以外的液体,可以被确定。 校正因子的确定,然后在输出耦合的电磁辐射的强度之间预先确定的关系的基础上进行了血液填充,并用比在一方面与电磁辐射的从先前测量的强度的基础上,血管线以外的液体填充 填充比血管线之外的液体耦合。