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The development and implementation of an adaptive filter technique for the assessment of circulatory collapse.

机译:评估循环衰竭的自适应滤波技术的发展与实现。

摘要

An apparatus for indicating cardiac output comprises means for monitoring a patient's transthoracic impedance and generating a corresponding impedance signal, and signal processing means for (a) deriving a signal S1 which is a measure of the average amplitude of the impedance signal, (b) filtering the impedance signal at a plurality of different wavelengths within a predetermined frequency band, (c) for each filter deriving a signal S2 which is a measure of the average amplitude of the respective filter output, (d) calculating the ratio of the maximum one of the signals S2 derived from step (c) to the signal S1 derived from step (a), and (e) using the ratio from step (d) in a decision tree to provide a signal indicating cardiac output or not.
机译:用于指示心输出量的设备包括:用于监视患者的经胸阻抗并产生相应的阻抗信号的装置;以及用于(a)导出作为阻抗信号的平均幅度的量度的信号S1的信号处理装置,(b)滤波在预定频带内的多个不同波长处的阻抗信号,(c)对于每个滤波器,得出信号S2,该信号是各个滤波器输​​出的平均幅度的度量,(d)计算最大从步骤(c)导出的信号S2到从步骤(a)导出的信号S1,以及(e)使用决策树中来自步骤(d)的比率来提供是否表示心输出量的信号。

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