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    Non-invasive oximeter and method
    1.
    发明授权
    Non-invasive oximeter and method 失效
    非侵入性血氧计和方法

    公开(公告)号：US4824242A

    公开(公告)日：1989-04-25

    申请号：US912993

    申请日：1986-09-26

    Applicant: Gene Frick ,  Rex McCarthy

    Inventor： Gene Frick ,  Rex McCarthy

    IPC: A61B5/00 ,  G01N21/31 ,  G01N33/49 ,  G01N21/35

    CPC classification number: A61B5/14551 ,  G01N21/3151 ,  G01N2021/3144 ,  G01N2021/3181

    Abstract: The present invention relates to an oximeter for monitoring oxygen saturation of arterial blood. Light of two wavelengths is transmitted through a specimen. Detectors measure the attenuation of light through the specimen to produce two modulating data streams. The data streams are thereafter processed, evaluated, and compared to determine oxygen saturation. A novel method to process, evaluate and compare the two data streams is disclosed.

    Abstract translation: 本发明涉及一种用于监测动脉血氧饱和度的血氧计。 两个波长的光透过一个样本。 检测器通过样本测量光的衰减，产生两个调制数据流。 之后处理，评估和比较数据流以确定氧饱和度。 公开了一种处理，评估和比较两个数据流的新方法。

    Wave form filter pulse detector and method for modulated signal
    2.
    发明授权
    Wave form filter pulse detector and method for modulated signal 失效
    波形滤波器脉冲检测器和调制信号的方法

    公开(公告)号：US4867571A

    公开(公告)日：1989-09-19

    申请号：US317097

    申请日：1989-02-28

    Applicant: Gene Frick ,  Rex McCarthy ,  Michael Pawlowski

    Inventor： Gene Frick ,  Rex McCarthy ,  Michael Pawlowski

    IPC: A61B5/024 ,  G01N21/31

    CPC classification number: G01N21/3151 ,  A61B5/02416 ,  G01N2021/3159 ,  G01N2021/3181

    Abstract: A device and method for determining pulses in a modulated signal is disclosed. The modulated signal is processed and converted into a quantized analog type of digital data stream. The data stream is evaluated over time by considering preceeding and subsequent values in the data stream to generate a filtered wave form. By using extreme values in the filtered wave form pulse detection is accurately determined regardless of whether the modulated signal has complicating features, such as dicrotic notch, or high noise levels, or both.

    Abstract translation: 公开了一种用于确定调制信号中的脉冲的装置和方法。 调制信号被处理并转换成量化的模拟类型的数字数据流。 通过考虑数据流中的先前和后续值以生成滤波波形来随时间评估数据流。 通过在滤波波形中使用极值，无论调制信号是否具有复杂特征，例如重触切口，或高噪声电平，或两者都精确地确定脉冲检测。

    Signal processing apparatus and method
    7.
    发明授权
    Signal processing apparatus and method 有权
    信号处理装置及方法

    公开(公告)号：US08180420B2

    公开(公告)日：2012-05-15

    申请号：US11842128

    申请日：2007-08-20

    Applicant: Mohamed K. Diab ,  Rex McCarthy

    Inventor： Mohamed K. Diab ,  Rex McCarthy

    IPC: A61B5/1455 ,  A61B5/02

    CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

    Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

    Abstract translation: 一种用于分析被建模为包含期望和不期望的部分（例如噪声，FM和AM调制）的两个测量信号的方法和装置。 系数根据根据本发明定义的模型关联两个信号。 在一个实施例中，使用变换来评估两个测量信号的比率以找到适当的系数。 然后将测量的信号馈送到信号洗涤器中，该信号洗涤器使用系数去除不需要的部分。 信号擦除在时域或频域中进行。 该方法和装置对于血氧饱和度测量和脉动测量是特别有利的。 在另一个实施例中，通过将一组规则应用于经擦除的信号的频谱变换来获得脉冲发生器的估计。 在另一个实施例中，通过将擦除的信号从第一光谱域变换成第二光谱域来获得脉冲发生器的估计。 通过识别第二个光谱域中最大的光谱峰值来发现脉冲发生器。

    Multipurpose sensor port
    10.
    发明申请
    Multipurpose sensor port 有权
    多功能传感器端口

    公开(公告)号：US20050075548A1

    公开(公告)日：2005-04-07

    申请号：US10898680

    申请日：2004-07-23

    Applicant: Ammar Al-Ali ,  Robert Smith ,  Rex McCarthy

    Inventor： Ammar Al-Ali ,  Robert Smith ,  Rex McCarthy

    IPC: A61B5/00 ,  A61B5/024 ,  G06F19/00

    CPC classification number: A61B5/14552 ,  A61B5/0002 ,  A61B5/02416 ,  A61B5/14551 ,  A61B2560/045 ,  A61B2562/08 ,  G05B19/02 ,  G16H40/63

    Abstract: A sensor port is adapted to connect to either a sensor or a data source. A reader is configured to identify which of the sensor and the data source is connected to the sensor port. A data path is configured to communicate an analog signal associated with the sensor and digital data associated with the data source to a signal processor according to the identification made by the reader.

    Abstract translation: 传感器端口适于连接到传感器或数据源。 读取器被配置为识别传感器和数据源中的哪一个连接到传感器端口。 数据路径被配置为根据读取器所做的识别将与传感器相关联的模拟信号和与数据源相关联的数字数据传送到信号处理器。

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