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    • 1. 发明申请
    • DETERMINATION OF BLOOD PUMP SYSTEM PERFORMANCE AND SAMPLE DILUTION USING A PROPERTY OF FLUID BEING TRANSPORTED
    • 使用流体输送物质确定血液泵系统性能和样品浓度
    • US20110060199A1
    • 2011-03-10
    • US12884175
    • 2010-09-16
    • Mark Ries RobinsonMike BorrelloRichard P. ThompsonStephen VanslykeShonn HendeeGreg KnipsteinDan Welsh
    • Mark Ries RobinsonMike BorrelloRichard P. ThompsonStephen VanslykeShonn HendeeGreg KnipsteinDan Welsh
    • A61B5/157
    • A61B5/14557A61B5/14532A61B5/15003A61B5/150213A61B5/150221A61B5/150229A61B5/150946A61B5/150961A61B5/150992A61B5/153A61B5/155A61B5/157A61M1/1692A61M1/34A61M1/341A61M1/3621A61M1/3639A61M1/3663A61M5/16831A61M2005/1404A61M2205/3306A61M2205/331A61M2205/3331A61M2205/3334A61M2205/3368A61M2230/201
    • The use of an optical or other measurement in a blood access system enables the determination of a fluid sample appropriate for measurement on a real time basis. This information can be used to control the blood access system and related measurement processes. The determination can be based on, for example, at least one of: optical density, optical scatter, analyte level, temperature, the absolute level of any of the preceding, the stability of any of the preceding, the rate of change of any of the preceding, or the value of any of the preceding relative to another determination. The determination can be made using, for example, at least one of: electrochemical sensor, ion specific electrode, capacitance measurement, impedance measurement, inductance measurement, conductivity measurement, optical measurement, and ultrasound measurement. The present invention relates to determination of the quality of a biological sample in which determination of an analyte concentration is to be made, and various methods and apparatuses related thereto. An evaluation of sample quality can be made by monitoring the temporal changes in the sample properties or characteristics as the biological sample is procured or measured. The methods and apparatuses described herein can be used to evaluate the temporal characteristics of a sample during sample acquisition and/or during determination of the sample analyte or parameter of interest. The sample quality assurance methods and apparatuses described herein can thus be used to ensure that a valid sample has been procured by or presented to an instrument or measurement system for analyte determination, thereby preventing the measurement and reporting of analyte values for a sample that is unstable or otherwise non-representative of the biological system from which the sample was obtained.
    • 在血液存取系统中使用光学或其他测量能够实时地确定适于测量的流体样品。 该信息可用于控制血液存取系统和相关测量过程。 该测定可以基于例如光密度,光学散度,分析物水平,温度,前述任一项的绝对水平,前述任一项的稳定性,任何变化率 前一个或前一个相对于另一个确定的任何值的值。 可以使用例如电化学传感器,离子专用电极,电容测量,阻抗测量,电感测量,电导率测量,光学测量和超声测量中的至少一个来进行确定。 本发明涉及要进行测定分析物浓度的生物样品的质量的确定以及与其相关的各种方法和装置。 通过监测采购或测量生物样品的样品性质或特性的时间变化,可以对样品质量进行评估。 本文描述的方法和装置可以用于在样品获取期间和/或在样品分析物或感兴趣的参数的确定期间评估样品的时间特征。 因此,本文所述的样品质量保证方法和装置可以用于确保有效样品已经由用于分析物测定的仪器或测量系统获得或呈现给样品,从而防止对不稳定的样品的分析物值的测量和报告 或以其他方式代表获得样品的生物系统。
    • 6. 发明申请
    • Detecting Cross-contamination in Blood Measurements with a Multilumen Catheter
    • 用多次导管检测血液测量中的交叉污染
    • US20090048535A1
    • 2009-02-19
    • US11860545
    • 2007-09-25
    • Mark Ries RobinsonMike BorrelloJohn O'MahonyRichard ThompsonV. Gerald Grafe
    • Mark Ries RobinsonMike BorrelloJohn O'MahonyRichard ThompsonV. Gerald Grafe
    • A61B5/155
    • A61B5/150961A61B5/14532A61B5/15003A61B5/150213A61B5/150221A61B5/150229A61B5/155A61B5/157
    • The present invention comprises methods and apparatuses that can provide accurate measurement of glucose or other analytes from a multilumen catheter in the presence of infusion of substances, including glucose. Examples of “multilumen catheters” include central venous catheters having multiple lumens, midline catheters having multiple lumens, multiple catheters configured or emplaced such that their lumens are in proximity to each other, and, in the case of indwelling analyte sensors, a catheter with a lumen for infusion and an indwelling sensor spaced apart from the infusion lumen. For blood withdrawal, anti-cross contamination controls can prevent the entrainment of blood which might be contaminated with feeding fluids or medications that are administered through other lumens within the catheter and in proximity of the blood sampling port. Cross contamination can occur under various situations, and is known to occur when the patient is connected to a ventilator. The ventilator cyclically raises the intra-thoracic pressure and diminishes blood flow rate in the central veins returning to the heart. The diminished flow can increase the chances for cross-contamination when additional lumens are introducing fluids during a draw sample.
    • 本发明包括在存在输入物质(包括葡萄糖)的情况下可以提供来自多腔导管的葡萄糖或其它分析物的精确测量的方法和装置。 “多腔导管”的实例包括具有多个内腔的中心静脉导管,具有多个腔的中线导管,多个导管被配置或放置成使得它们的内腔彼此靠近,并且在留置分析物传感器的情况下, 用于输注的内腔和与输液腔间隔开的留置传感器。 为了取血,反交叉污染控制可以防止可能被导管内和在血液采样端口附近通过其他管腔给药液体或药物而被污染的血液夹带。 交叉污染可以在各种情况下发生,并且已知当患者连接到通气机时发生交叉污染。 呼吸机周期性地升高胸腔内压,并减少返回心脏的中央静脉血流量。 减少的流量可以增加在抽取样品期间附加管腔引入流体时交叉污染的机会。
    • 8. 发明申请
    • HEMODYNAMIC MONITORING DURING AUTOMATED MEASUREMENT OF BLOOD CONSTITUENTS
    • 血液自动测量期间的血液动力学监测
    • US20100094113A1
    • 2010-04-15
    • US12576121
    • 2009-10-08
    • Mark Ries RobinsonMike BorrelloWilliam R. Patterson
    • Mark Ries RobinsonMike BorrelloWilliam R. Patterson
    • A61B5/1473A61B5/02A61B5/021
    • A61B5/0215A61B5/14532A61B5/14546
    • The present invention provides methods and apparatuses that can provide measurement of analytes such as glucose with a variety of sensors in connection with hemodynamic monitoring. Some embodiments of the present invention enable the use of a single arterial access site for automated blood glucose measurement as well as hemodynamic monitoring. Some embodiments of the present invention can reduce or eliminate nuisance hemodynamic alarms. Some embodiments of the present invention can provide hemodynamic monitoring during an automated analyte measurement process. An example apparatus according to the present invention comprises a blood access system, adapted to remove blood from a body and infuse at least a portion of the blood back into the body. Such an apparatus also comprises an analyte sensor, mounted with or integrated into the blood access system such that the analyte sensor measures the analyte in the blood that has been removed from the body by the blood access system.
    • 本发明提供了可以提供诸如葡萄糖等分析物与血液动力学监测相结合的各种传感器的测量方法和装置。 本发明的一些实施例使得能够使用单个动脉进入部位进行自动血糖测量以及血液动力学监测。 本发明的一些实施例可以减少或消除麻烦的血液动力学警报。 本发明的一些实施方案可以在自动分析物测量过程中提供血液动力学监测。 根据本发明的示例性装置包括血液存取系统,其适于从身体去除血液并将至少一部分血液注入体内。 这样的装置还包括安装有或集成到血液存取系统中的分析物传感器,使得分析物传感器测量血液中已被血液存取系统从体内除去的分析物。