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    MEDICAL SENSOR AND TECHNIQUE FOR USING THE SAME
    101.
    发明申请
    MEDICAL SENSOR AND TECHNIQUE FOR USING THE SAME 审中-公开
    医疗传感器及其使用技术

    公开(公告)号：WO2007041217A2

    公开(公告)日：2007-04-12

    申请号：PCT/US2006/037852

    申请日：2006-09-29

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED ,  HOARAU, Carine

    Inventor： HOARAU, Carine

    IPC: A61B5/00

    CPC classification number: A61B5/14552 ,  A61B5/4523 ,  A61B5/6816 ,  A61B5/6826 ,  A61B5/6838

    Abstract: A sensor may be adapted to account for factors that cause irregularities in sensor measurements. A sensor may selectively absorb light from outside sources. A sensor may selectively absorb light near a region of tissue having relatively large subcutaneous anatomic structures, such as large blood vessels, and selectively reflect light near a region of tissue that is relatively free of large blood vessels or other structures. The sensor is adapted to reduce the effect of large subcutaneous anatomic structures and outside light on measurements for pulse oximetry or other spectrophotometric techniques.

    Abstract translation: 传感器可适于考虑导致传感器测量不规则的因素。 传感器可以选择性地吸收来自外部源的光。 传感器可以选择性地吸收具有相对大的皮下解剖结构（例如大血管）的组织区域附近的光，并且选择性地反射组织相对没有大血管或其他结构的区域附近的光。 该传感器适用于减少大量皮下解剖结构和外界光线对脉搏血氧仪或其他分光光度技术测量的影响。

    METHOD AND APPARATUS FOR OPTICAL DETECTION OF MIXED VENOUS AND ARTERIAL BLOOD PULSATION IN TISSUE
    106.
    发明申请
    METHOD AND APPARATUS FOR OPTICAL DETECTION OF MIXED VENOUS AND ARTERIAL BLOOD PULSATION IN TISSUE 审中-公开
    用于光学检测混合气道和组织血液脉冲组织的方法和装置

    公开(公告)号：WO2005087096A1

    公开(公告)日：2005-09-22

    申请号：PCT/US2005/007407

    申请日：2005-03-07

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED ,  BAKER, Clark, R., Jr.

    Inventor： BAKER, Clark, R., Jr.

    IPC: A61B5/00

    CPC classification number: A61B5/14551

    Abstract: A method and device for detecting the presence of mixed venous and arterial blood pulsation in tissue, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to infrared and red wavelengths of light, obtaining a measure of a phase difference between the first and second electromagnetic radiation signals, comparing the measure with a threshold value to form a comparison, and detecting the presence or absence of venous pulsation using the comparison.

    Abstract translation: 一种用于检测组织中混合的静脉和动脉血脉搏的存在的方法和装置，包括从对应于红外和红色波长的光的血液灌注的组织部分接收第一和第二电磁辐射信号，获得 第一和第二电磁辐射信号，将测量与阈值进行比较以形成比较，并使用比较来检测是否存在静脉脉动。

    PULSE OXIMETER WITH SEPARATE ENSEMBLE AVERAGING FOR OXYGEN SATURATION AND HEART RATE
    107.
    发明申请
    PULSE OXIMETER WITH SEPARATE ENSEMBLE AVERAGING FOR OXYGEN SATURATION AND HEART RATE 审中-公开
    具有独立稳定的氧气饱和度和脉率的脉冲氧化剂

    公开(公告)号：WO2005087094A1

    公开(公告)日：2005-09-22

    申请号：PCT/US2005/007388

    申请日：2005-03-07

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED ,  BAKER JR., Clark R.

    Inventor： BAKER JR., Clark R.

    IPC: A61B5/00

    CPC classification number: A61B5/14551 ,  A61B5/6843 ,  A61B5/725

    Abstract: The use of two separate ensemble averagers for processing a detected waveform for use in calculating oxygen saturation and a pulse rate. The ensemble averager used for calculating oxygen saturation operates on a signal which has been normalized, while the ensemble averager for the pulse rate calculation operates on a signal which has not been normalized. The metrics chosen for the two paths through the two ensemble averagers can be varied to optimize the ensemble averaging for oxygen saturation or pulse rate calculations.

    Abstract translation: 使用两个单独的集成平均器来处理用于计算氧饱和度和脉率的检测波形。 用于计算氧饱和度的整体平均器对已经被归一化的信号进行操作，而用于脉冲率计算的整体平均器对未被归一化的信号进行操作。 可以改变通过两个整体平均器的两条路径所选择的度量，以优化氧饱和度或脉搏率计算的整体平均。

    DELTA-SIGMA MODULATOR FOR OUTPUTTING ANALOG REPRESENTATION OF PHYSIOLOGICAL SIGNAL
    108.
    发明申请
    DELTA-SIGMA MODULATOR FOR OUTPUTTING ANALOG REPRESENTATION OF PHYSIOLOGICAL SIGNAL 审中-公开
    用于输出生理信号的模拟表示的DELTA-SIGMA调制器

    公开(公告)号：WO2005082237A1

    公开(公告)日：2005-09-09

    申请号：PCT/US2005/005934

    申请日：2005-02-24

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED ,  PETERSEN, Ethan ,  SHEA, William ,  CHEW, Bradford, B.

    Inventor： PETERSEN, Ethan ,  SHEA, William ,  CHEW, Bradford, B.

    IPC: A61B5/00

    CPC classification number: A61B5/14551 ,  H03M7/3028 ,  H03M7/3042

    Abstract: A method and apparatus for providing a substantially real-time representation of an analog representation of a physiological signal. The waveform signal from the sensor is converted into digital form. A delta-sigma modulator is used as a simple Digital-to-analog Converter (ADC). The output can then be provided through a simple hardware filter to give an analog output signal in nearly real-time, which can be used for other instruments, synchronization, display, etc.

    Abstract translation: 一种用于提供生理信号的模拟表示的基本上实时表示的方法和装置。 传感器的波形信号转换为数字形式。 Δ-Σ调制器用作简单的数模转换器（ADC）。 然后可以通过简单的硬件滤波器提供输出，几乎实时提供模拟输出信号，可用于其他仪器，同步，显示等。

    HEADBAND WITH TENSION INDICATOR
    109.
    发明申请
    HEADBAND WITH TENSION INDICATOR 审中-公开
    头带指示器

    公开(公告)号：WO2005079663A1

    公开(公告)日：2005-09-01

    申请号：PCT/US2005/004582

    申请日：2005-02-11

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED ,  HANNULA, Don ,  COAKLEY, Joseph ,  MANNHEIMER, Paul D.

    Inventor： HANNULA, Don ,  COAKLEY, Joseph ,  MANNHEIMER, Paul D.

    IPC: A61B5/00

    CPC classification number: A61B5/14552 ,  A41D13/1281 ,  A41D20/00 ,  A61B5/6814 ,  A61B5/6843

    Abstract: A headband having a low stretch segment sized to fit around a wearer's head, and an elastic segment being smaller than the low stretch segment, and having a free end and an attached end, where the elastic segment is attached at its attached end with the low stretch segment. The headband also includes a tab portion having a first end and a second end, the first end of the tab portion being connected with the free end of the elastic portion, the second end of the tab portion configured to form a closed loop with the low stretch segment, around the wearer's head. The headband also includes visual indicator configured for monitoring the extended position of elastic segment and optionally a stop portion that is configured to engage against the elastic segment to limit its stretch. When having a stop portion, the tab portion also includes an indicator portion between its first end and the stop portion such that the indicator portion when visible indicates that the headband needs re-tightening; and when the indicator portion is not visible it indicates an adequate level of tension corresponding with delivering a pressure in the range higher than the venous pressure and lower than the capillary pressure to the forehead of the wearer.

    Abstract translation: 具有尺寸适合于佩戴者头部周围的低拉伸段的头带以及比所述低拉伸段更小的弹性段，并且具有自由端和附接端，其中所述弹性区段在其附着端附接有低 拉伸段。 头带还包括具有第一端和第二端的突片部分，突片部分的第一端与弹性部分的自由端连接，突出部分的第二端构造成形成具有低的 拉伸段，围绕佩戴者的头部。 头带还包括视觉指示器，其构造成用于监测弹性段的延伸位置和可选地阻挡部分，其被构造成与弹性区段接合以限制其伸展。 当具有止动部分时，突片部分还包括在其第一端和止挡部分之间的指示器部分，使得当可见的指示器部分指示头带需要重新紧固时; 并且当指示器部分不可见时，其指示适当的张力水平，其对应于在高于静脉压力并且低于穿过佩戴者前额的毛细管压力的范围内输送压力。

    BLIND SOURCE SEPARATION OF PULSE OXIMETRY SIGNALS
    110.
    发明申请
    BLIND SOURCE SEPARATION OF PULSE OXIMETRY SIGNALS 审中-公开

    公开(公告)号：WO2003039340A3

    公开(公告)日：2003-05-15

    申请号：PCT/US2002/035223

    申请日：2002-10-31

    Applicant: NELLCOR PURITAN BENNETT INCORPORATED

    Inventor： STETSON, Paul, F.

    IPC: A61B5/00

    Abstract: A method and apparatus for the application of Blind Source Separation (BSS), specifically Independent Component Analysis (ICA) to mixture signals obtained by a pulse oximeter sensor. In pulse oximetry, the signals measured at different wavelengths represent the mixture signals, while the plethysmographic signal, motion artifact, respiratory artifact and instrumental noise represent the source components. The BSS is carried out by a two-step method including an ICA. In the first step, the method uses Principal Component Analysis (PCA) as a preprocessing step, and the Principal Components are then used to derive sat and the Independent Components, where the Independent Components are determined in a second step. In one embodiment, the independent components are obtained by high-order decorrelation of the principal components, achieved by maximizing the sum of the squares of the higher-order cumulants of the plurality of mixture signals.

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