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11. 发明申请

US20060183988A1 Pulse oximeter with parallel saturation calculation modules 有权
标题翻译：具有并联饱和度计算模块的脉搏血氧计
公开(公告)号：US20060183988A1
公开(公告)日：2006-08-17
申请号：US11406188
申请日：2006-04-18
申请人： Clark Baker , Thomas Yorkey
发明人： Clark Baker , Thomas Yorkey
IPC分类号： A61B5/00
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/7239 , A61B5/725 , G06F19/00 , H03H21/003
摘要： A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting and averaging a series of measurements. Varying weights are assigned different measurements, measurements are rejected, and the averaging period is adjusted according to the reliability of the measurements. Similarly, calculated values derived from analyzing the measurements are also assigned varying weights and averaged over adjustable periods. More specifically, a general class of filters such as, for example, Kalman filters, is employed in processing the measurements and calculated values. The filters use mathematical models which describe how the physiological parameters change in time, and how these parameters relate to measurement in a noisy environment. The filters adaptively modify a set of averaging weights to optimally estimate the physiological parameters.
摘要翻译：一种用于减少噪声对用于测量生理参数的系统的影响的方法和装置，例如脉搏血氧计。本发明的方法和装置考虑到当加权和平均一系列测量时监测的各种生理参数的物理限制。不同的权重被分配不同的测量，测量被拒绝，平均期间根据测量的可靠性进行调整。类似地，从分析测量得到的计算值也被赋予变化的权重并且在可调周期上平均。更具体地，在处理测量值和计算值时，采用一般的滤波器类，例如卡尔曼滤波器。过滤器使用描述生理参数如何随时间变化的数学模型，以及这些参数如何与嘈杂环境中的测量相关。滤波器自适应地修改一组平均权重以最佳地估计生理参数。

12. 发明申请

US20060030764A1 Method and circuit for indicating quality and accuracy of physiological measurements 有权
标题翻译：用于指示生理测量的质量和准确度的方法和电路
公开(公告)号：US20060030764A1
公开(公告)日：2006-02-09
申请号：US11241635
申请日：2005-09-30
申请人： Charles Porges , Clark Baker , Thomas Yorkey , Michael Bernstein , Paul Mannheimer
发明人： Charles Porges , Clark Baker , Thomas Yorkey , Michael Bernstein , Paul Mannheimer
IPC分类号： A61B5/00
CPC分类号： A61B5/14551 , A61B5/7221 , G06F19/00 , Y10T29/49117
摘要： Sensors and monitors for a physiological monitoring system having capability to indicate an accuracy of an estimated physiological condition. The sensor senses at least one physiological characteristic of a patient and is connectable to a monitor that estimates the physiological condition from signals detected by the sensor. The sensor includes a detector for detecting the signals from the patient which are indicative of the physiological characteristic. The sensor is associated with a memory configured to store data that defines at least one sensor signal specification boundary for the detected signals. The boundary is indicative of a quality of the signals and an accuracy of the physiological characteristic estimated from the signals by the monitor. The sensor further includes means for providing access to the memory to allow transmission of the data that defines the at least one sensor boundary to the monitor.
摘要翻译：用于具有指示估计的生理状态的准确性的能力的生理监测系统的传感器和监视器。感测器感测到患者的至少一个生理特征，并且可连接到由传感器检测到的信号估计生理状态的监视器。传感器包括用于检测来自患者的指示生理特征的信号的检测器。传感器与被配置为存储为检测信号定义至少一个传感器信号规范边界的数据的存储器相关联。边界表示信号的质量以及由监视器根据信号估计的生理特性的准确度。传感器还包括用于提供对存储器的访问以允许将限定至少一个传感器边界的数据传输到监视器的装置。

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