Improved method and apparatus for detecting optical pulses
    1.
    发明公开
    Improved method and apparatus for detecting optical pulses 失效
    Verbaffees Verfahren undGerätzur Messung optischer Impulse。

    公开(公告)号:EP0335357A2

    公开(公告)日:1989-10-04

    申请号:EP89105502.2

    申请日:1989-03-29

    Abstract: A method and apparatus for improving the calculation of oxygen saturation and other blood constituents by non-invasive pulse oximeters. The method and apparatus permit more accurate determina­tion of blood flow by collecting time-measures of the absorption signal at two or more wavelengths and processing the collected time-measure to obtain composite pulsatile flow data from which artifacts have been filtered. The processing occurs in the frequency domain. The time-measure is Fourier trans­formed into its spectral components to form the composite information.

    Abstract translation: 一种用于通过非侵入式脉搏血氧计改善氧饱和度和其他血液成分的计算的方法和装置。 该方法和装置允许通过收集在两个或更多个波长处的吸收信号的时间测量来更准确地确定血流,并且处理所采集的时间测量以获得从其中过滤伪影的复合脉冲流数据。 处理发生在频域。 时间量度被傅里叶变换成其光谱分量以形成复合信息。

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