Method, apparatus and system for removing motion artifacts from measurements of bodily parameters
    7.
    发明申请
    Method, apparatus and system for removing motion artifacts from measurements of bodily parameters 失效
    用于从身体参数测量中去除运动伪影的方法,装置和系统

    公开(公告)号:US20050033129A1

    公开(公告)日:2005-02-10

    申请号:US10873758

    申请日:2004-06-22

    IPC分类号: A61B5/00 G06F17/00

    摘要: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SPO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used. The above method may be applied to red and infrared pulse oximetry signals prior to calculating pulse rate and/or pulsatile blood oxygen concentration. Apparatus and systems disclosed are configured to perform methods disclosed according to the invention.

    摘要翻译: 一种用于从用于感测身体参数的装置和用于实现其的设备和系统的装置中去除运动假象的方法。 该方法包括分析表示身体参数和可能的运动伪影噪声的测量数据的段。 测量数据的每一段可对应于通过身体组织透射或反射后传输和检测的单个光信号。 对每个数据段进行频率分析,以确定最多三个候选峰进行进一步分析。 可以对最多三个候选频率中的每一个进行滤波,并且计算与最多三个候选频率中的每一个相关联的各种参数。 通过使用根据预定准则的计算参数来仲裁候选频率来确定最佳频率(如果存在)。 如果找到最佳频率,则可能会输出脉搏率和SPO2。 如果没有发现最佳频率,则可以使用用于计算脉率和SpO2的其它常规技术。 在计算脉搏率和/或脉动血氧浓度之前,上述方法可以应用于红色和红外脉搏血氧饱和度信号。 公开的设备和系统被配置为执行根据本发明公开的方法。

    Method, apparatus, and system for removing motion artifacts from measurements of bodily parameters
    9.
    发明申请
    Method, apparatus, and system for removing motion artifacts from measurements of bodily parameters 失效
    用于从身体参数测量中去除运动伪影的方法,装置和系统

    公开(公告)号:US20060258927A1

    公开(公告)日:2006-11-16

    申请号:US11408604

    申请日:2006-04-21

    IPC分类号: A61B5/00

    摘要: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same that includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Up to three candidate frequencies may be filtered and various parameters associated with each candidate frequency are calculated. A pulse-estimate input may also be accepted from an external source. The best frequency, if one exists, is determined by arbitrating the candidate frequencies and the pulse-estimate input using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SpO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used.

    摘要翻译: 一种用于从用于感测身体参数的装置和装置和系统中去除运动假象的方法,用于实现该运动伪影,其包括分析代表身体参数和可能的运动伪影噪声的测量数据的段。 对每个数据段进行频率分析,以确定最多三个候选峰进行进一步分析。 可以过滤多达三个候选频率,并且计算与每个候选频率相关联的各种参数。 也可以从外部来源接受脉冲估计输入。 如果存在最佳频率,则通过使用根据预定准则的计算参数来仲裁候选频率和脉冲估计输入来确定。 如果找到最佳频率,则可以输出脉搏率和SpO <2> 。 如果没有找到最佳频率,则可以使用用于计算脉率和SpO 2 2的其它常规技术。