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1. 发明申请

US20050085735A1 Method and apparatus for estimating a physiological parameter 有权
标题翻译：用于估计生理参数的方法和装置
公开(公告)号：US20050085735A1
公开(公告)日：2005-04-21
申请号：US10964249
申请日：2004-10-12
申请人： Clark Baker , Thomas Yorkey
发明人： Clark Baker , Thomas Yorkey
IPC分类号： A61B5/00 , A61B5/02 , A61B5/024 , H03H21/00
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： In a physiological monitor, a method and an apparatus for determining a patient's pulse rate using data corresponding to a plurality of wavelengths of electromagnetic energy transmitted through the tissue of the patient. The method includes tracking the pulse rate in the data using an adaptive comb filter, the data having signal portions corresponding to the pulse rate and signal portions corresponding to noise, periodically calculating a frequency power spectrum of one of the wavelengths, and using the frequency power spectrum in a pulse rate calculator to determine the pulse rate or to verify the pulse rate calculated by the pulse rate calculator.
摘要翻译：在生理监视器中，使用与通过患者组织透射的电磁能量的多个波长对应的数据来确定患者脉搏率的方法和装置。该方法包括使用自适应梳状滤波器跟踪数据中的脉率，该数据具有对应于脉冲速率的信号部分和对应于噪声的信号部分，周期性地计算波长之一的频率功率谱，并使用频率功率频谱计算器中确定脉搏速率或验证由脉率计算器计算的脉搏率。

2. 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。

3. 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。

4. 发明申请

US20050124871A1 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：US20050124871A1
公开(公告)日：2005-06-09
申请号：US11039529
申请日：2005-01-19
申请人： Clark Baker , Thomas Yorkey
发明人： Clark Baker , Thomas Yorkey
IPC分类号： A61B5/00 , A61B5/02 , A61B5/024 , H03H21/00
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。

5. 发明申请

US20050143634A1 Method and apparatus for estimating a physiological parameter 有权
标题翻译：用于估计生理参数的方法和装置
公开(公告)号：US20050143634A1
公开(公告)日：2005-06-30
申请号：US11070629
申请日：2005-03-01
申请人： Clark Baker , Thomas Yorkey
发明人： Clark Baker , Thomas Yorkey
IPC分类号： A61B5/00 , A61B5/02 , A61B5/024 , H03H21/00
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。

6. 发明申请

US20070073121A1 Medical sensor for reducing motion artifacts and technique for using the same 有权
公开(公告)号：US20070073121A1
公开(公告)日：2007-03-29
申请号：US11241375
申请日：2005-09-29
申请人： Carine Hoarau , Clark Baker , Edward Karst
发明人： Carine Hoarau , Clark Baker , Edward Karst
IPC分类号： A61B5/00
CPC分类号： A61B5/6886 , A61B5/14552 , A61B5/6826 , A61B5/6838 , A61B5/6844 , Y10T29/49826
摘要： A sensor for pulse oximetry or other applications utilizing spectrophotometry may be adapted to reduce motion artifacts by fixing the optical distance between an emitter and detector. A flexible sensor is provided with a stiffening member to hold the emitter and detector of the sensor in a relatively fixed position when applied to a patient. Further, an annular or partially annular sensor is adapted to hold an emitter and detector of the sensor in a relatively fixed position when applied to a patient. A clip-style sensor is provided with a spacer that controls the distance between the emitter and detector.

7. 发明申请

US20050203357A1 Pulse oximetry motion artifact rejection using near infrared absorption by water 有权
标题翻译：使用近红外吸收的脉搏血氧饱和度运动伪影抑制
公开(公告)号：US20050203357A1
公开(公告)日：2005-09-15
申请号：US10797475
申请日：2004-03-09
申请人： Martin Debreczeny , Clark Baker
发明人： Martin Debreczeny , Clark Baker
IPC分类号： A61B5/00 , A61B5/024 , A61B5/02
CPC分类号： A61B5/7207 , A61B5/02416 , A61B5/14551
摘要： A method and an apparatus for measuring a physiological parameter, functioning based on obtaining a first signal derived from electromagnetic energy transmitted through a tissue portion at a first wavelength, the first signal including a signal portion corresponding with motion-related events and a signal portion corresponding with arterial pulsation events, where at the first wavelength water is a dominant absorber of electromagnetic energy in the tissue portion; obtaining a second signal derived from electromagnetic energy transmitted through a tissue portion at a second wavelength, the second signal including a signal portion corresponding with motion-related events and a signal portion corresponding with arterial pulsation events, where at the second wavelength hemoglobin is a dominant absorber of electromagnetic energy in the tissue portion; and combining the first signal and the second signal to generate a combined plethysmograph signal, such that the combined signal has a signal portion corresponding with motion-related events that is smaller than that present in the first signal or the second signal.
摘要翻译：一种用于测量生理参数的方法和装置，其基于获得从通过组织部分以第一波长传输的电磁能导出的第一信号，所述第一信号包括对应于运动相关事件的信号部分和对应于信号部分的信号部分伴随动脉搏动事件，其中在第一波长处，水是组织部分中电磁能的主要吸收体; 获得从通过组织部分以第二波长传输的电磁能导出的第二信号，所述第二信号包括对应于运动相关事件的信号部分和对应于动脉脉动事件的信号部分，其中在第二波长血红蛋白是主要的吸收组织部分中的电磁能; 以及组合所述第一信号和所述第二信号以产生组合的体积描记信号，使得所述组合信号具有对应于小于在所述第一信号或所述第二信号中存在的运动相关事件的信号部分。

8. 发明申请

US20050197549A1 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 有权
标题翻译：基于信号质量度量来选择脉搏血氧计的集合平均权重
公开(公告)号：US20050197549A1
公开(公告)日：2005-09-08
申请号：US10796559
申请日：2004-03-08
申请人： Clark Baker
发明人： Clark Baker
IPC分类号： A61B5/00
CPC分类号： A61B5/14552 , A61B5/7203 , A61B5/7221
摘要： A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to two different wavelengths of light, obtaining an assessment of the signal quality of the electromagnetic signals, selecting weights for an ensemble averager using the assessment of signal quality, and ensemble averaging the electromagnetic signals using the ensemble averager.
摘要翻译：一种用于在脉搏血氧计中对信号进行整体平均的方法和系统，包括从对应于两个不同波长的光的血液灌注的组织部分接收第一和第二电磁辐射信号，获得对电磁信号的信号质量的评估，对于使用信号质量评估的整体平均器，以及使用整体平均器对电磁信号进行整体平均。

9. 发明授权

US06675031B1 Method and circuit for indicating quality and accuracy of physiological measurements 有权
公开(公告)号：US06675031B1
公开(公告)日：2004-01-06
申请号：US09545170
申请日：2000-04-06
申请人： Charles Porges , Clark Baker , Thomas J. Yorkey , Michael Bernstein , Paul Mannheimer
发明人： Charles Porges , Clark Baker , Thomas J. Yorkey , Michael Bernstein , Paul Mannheimer
IPC分类号： A61B500
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.

10. 发明申请

US20070208242A1 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 有权
标题翻译：基于信号质量度量来选择脉搏血氧计的集合平均权重
公开(公告)号：US20070208242A1
公开(公告)日：2007-09-06
申请号：US11701173
申请日：2007-02-01
申请人： Clark Baker
发明人： Clark Baker
IPC分类号： A61B5/00
CPC分类号： A61B5/14552 , A61B5/7203 , A61B5/7221
摘要： A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to two different wavelengths of light, obtaining an assessment of the signal quality of the electromagnetic signals, selecting weights for an ensemble averager using the assessment of signal quality, and ensemble averaging the electromagnetic signals using the ensemble averager.
摘要翻译：一种用于在脉搏血氧计中对信号进行整体平均的方法和系统，包括从对应于两个不同波长的光的血液灌注的组织部分接收第一和第二电磁辐射信号，获得对电磁信号的信号质量的评估，对于使用信号质量评估的整体平均器，以及使用整体平均器对电磁信号进行整体平均。

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