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11. 发明授权

US09693736B2 Systems and methods for determining respiration information using historical distribution 有权
公开(公告)号：US09693736B2
公开(公告)日：2017-07-04
申请号：US13307531
申请日：2011-11-30
申请人： Clark R. Baker, Jr. , James Ochs , James H. Dripps , Paul S. Addison
发明人： Clark R. Baker, Jr. , James Ochs , James H. Dripps , Paul S. Addison
IPC分类号： A61B5/08 , A61B5/00 , A61B5/1455
CPC分类号： A61B5/7246 , A61B5/0816 , A61B5/14552 , A61B5/7278 , G06F19/00
摘要： A patient monitoring system may generate an autocorrelation sequence for a physiological signal such as a photoplethysmograph signal. A series of peak values may be identified for the autocorrelation sequence. The peak values may be modified based on a historical distribution of a physiological parameter. A physiological parameter such as respiration rate may be determined based on the modified peak values.

12. 发明授权

US08777867B2 Detection of oximetry sensor sites based on waveform characteristics 有权
标题翻译：基于波形特征检测血氧测定传感器位点
公开(公告)号：US08777867B2
公开(公告)日：2014-07-15
申请号：US13526287
申请日：2012-06-18
申请人： Clark R. Baker, Jr.
发明人： Clark R. Baker, Jr.
IPC分类号： A61B5/02 , A61B5/0205 , A61B5/024
CPC分类号： A61B5/024 , A61B5/0205 , A61B5/02416 , A61B5/061 , A61B5/14551 , A61B5/14552 , A61B5/1495
摘要： In accordance with an embodiment of the present technique, there is provided methods and systems for detecting the location of a sensor and determining calibration algorithms and/or coefficients for calculation of physiological parameters based on the detected location. An exemplary embodiment includes receiving a signal corresponding to absorption of at least one wavelength of light by a patient's tissue, generating a plethysmographic waveform from the signal, determining an identifying characteristic of the plethysmographic waveform, and determining a location of the sensor based on a comparison of the identifying characteristic with at least one defined criterion.
摘要翻译：根据本技术的实施例，提供了用于检测传感器的位置并且基于检测到的位置确定用于计算生理参数的校准算法和/或系数的方法和系统。示例性实施例包括接收对应于由患者组织吸收至少一个波长的光的信号，从信号产生体积描记图波形，确定体积描记图波形的识别特性，以及基于比较确定传感器的位置具有至少一个定义的标准的识别特征。

13. 发明授权

US08696593B2 Method and system for monitoring intracranial pressure 有权
标题翻译：监测颅内压的方法和系统
公开(公告)号：US08696593B2
公开(公告)日：2014-04-15
申请号：US11528218
申请日：2006-09-27
申请人： Shannon E. Campbell , Clark R. Baker, Jr.
发明人： Shannon E. Campbell , Clark R. Baker, Jr.
IPC分类号： A61B5/00
CPC分类号： A61B5/031 , A61B5/0205 , A61B5/1455 , A61B5/6814
摘要： Embodiments of the present invention relate to a system and method for monitoring intracranial pressure. Embodiments of the present invention include emitting an electromagnetic wavelength into forehead tissue of a patient and detecting characteristics of the electromagnetic wavelength after the electromagnetic wavelength has been scattered by the tissue. The characteristics may include variations in the electromagnetic wavelength corresponding to a pulse. Further, embodiments of the present invention include analyzing the variations to identify venous pulsations, and determining whether intracranial pressure is elevated in the patient based on a correlation between the venous pulsations and levels of intracranial pressure.
摘要翻译：本发明的实施例涉及一种用于监测颅内压的系统和方法。本发明的实施例包括将电磁波长发射到患者的前额组织中，并且在电磁波长被组织散射之后检测电磁波长的特性。特征可以包括对应于脉冲的电磁波长的变化。此外，本发明的实施例包括分析变异以识别静脉脉动，并且基于静脉脉动与颅内压水平之间的相关性来确定患者中颅内压是否升高。

14. 发明授权

US08690770B2 Method and system for determining when to reposition a physiological sensor 有权
标题翻译：确定何时重新定位生理传感器的方法和系统
公开(公告)号：US08690770B2
公开(公告)日：2014-04-08
申请号：US13323570
申请日：2011-12-12
申请人： Clark R. Baker, Jr.
发明人： Clark R. Baker, Jr.
IPC分类号： A61B5/00 , G06F19/00
CPC分类号： G06F19/3406 , A61B5/00 , A61B5/14551 , A61B5/6843 , A61B2560/0276 , G16H40/63 , Y10S128/905 , Y10S128/92
摘要： A sensor may be placed on a patient to obtain physiological measurements. The application of the sensor on the patient may start a timer set to run for a given time interval. If the sensor is repositioned before the interval is expired, the timer is reset. If the time expires without the sensor being repositioned, a caregiver is prompted to reposition the sensor.
摘要翻译：可以将传感器放置在患者身上以获得生理测量。传感器在患者身上的应用可以启动一个定时器，以在给定的时间间隔内运行。如果传感器在间隔期满之前重新定位，则定时器被复位。如果时间到期而没有传感器重新定位，则会提示护理员重新定位传感器。

15. 发明授权

US08290730B2 Systems and methods for assessing measurements in physiological monitoring devices 有权
标题翻译：用于评估生理监测装置中的测量的系统和方法
公开(公告)号：US08290730B2
公开(公告)日：2012-10-16
申请号：US12494971
申请日：2009-06-30
申请人： James N. Watson , Clark R. Baker, Jr. , Paul Stanley Addison
发明人： James N. Watson , Clark R. Baker, Jr. , Paul Stanley Addison
IPC分类号： G06F17/00 , G06F17/40
CPC分类号： A61B5/02255 , A61B5/02416 , A61B5/1455 , A61B5/7221 , A61B5/7239
摘要： Methods and systems are provided for deriving and analyzing shape metrics, including skewness metrics, from physiological signals and their derivatives to determine measurement quality, patient status and operating conditions of a physiological measurement device. Such determinations may be used for any number of functions, including indicating to a patient or care provider that the measurement quality is low or unacceptable, alerting a patient or care provider to a change in patient status, triggering or delaying a recalibration of a monitoring device, and adjusting the operating parameters of a monitoring system.
摘要翻译：提供了方法和系统，用于从生理信号及其衍生物导出和分析形状指标，包括偏度度量，以确定生理测量装置的测量质量，患者状态和操作条件。这样的确定可以用于任何数量的功能，包括向患者或护理提供者指示测量质量低或不可接受，警告患者或护理提供者改变患者状态，触发或延迟监视设备的重新校准，并调整监控系统的运行参数。

16. 发明授权

US08280469B2 Method for detection of aberrant tissue spectra 有权
标题翻译：检测异常组织光谱的方法
公开(公告)号：US08280469B2
公开(公告)日：2012-10-02
申请号：US11716777
申请日：2007-03-09
申请人： Clark R. Baker, Jr.
发明人： Clark R. Baker, Jr.
IPC分类号： A61B5/1455
CPC分类号： A61B5/6843 , A61B5/14551 , A61B5/14552 , A61B5/7203
摘要： A method is provided for determining contact of a sensor with a patient's tissue. The method comprises comparing the intensity of detected light at a first wavelength to a threshold, wherein the first wavelength is not used to determine a physiological characteristic of the patient, and determining if the sensor is in contact with the patient's tissue based on the comparison. In addition, a method is provided for determining the amount of light shunting during operation of the sensor. The method comprises comparing the intensity of detected light at a first wavelength to a threshold, wherein the first wavelength is not used to determine a physiological characteristic of the patient, and determining the amount of light shunting based on the comparison.
摘要翻译：提供了一种用于确定传感器与患者组织的接触的方法。该方法包括将第一波长的检测光的强度与阈值进行比较，其中第一波长不用于确定患者的生理特征，并且基于比较来确定传感器是否与患者组织接触。此外，提供了一种用于确定传感器操作期间的分流量的方法。该方法包括将第一波长的检测光的强度与阈值进行比较，其中第一波长不用于确定患者的生理特征，并且基于比较来确定分流量。

17. 发明授权

US08123695B2 Method and apparatus for detection of venous pulsation 有权
标题翻译：用于检测静脉脉动的方法和装置
公开(公告)号：US08123695B2
公开(公告)日：2012-02-28
申请号：US11528295
申请日：2006-09-27
申请人： Clark R. Baker, Jr.
发明人： Clark R. Baker, Jr.
IPC分类号： A61B5/02
CPC分类号： A61B5/14551 , A61B5/02416 , A61B5/7239
摘要： Methods and systems for detecting venous pulsation are provided. In one embodiment, a metric of the pulse shape of one or more plethysmographic signals is derived and the presence of venous pulsation is detected based on the metric of pulse shape. Examples, of metrics of pulse shape include a skew metric and a ratio of a minima-to-maxima time over a pulse period interval. In an exemplary embodiment, the presence of venous pulsation is detected based on a metric of the pulse shape of one or more plethysmographic signals and on a phase comparison of the plethysmographic signals.
摘要翻译：提供了检测静脉脉动的方法和系统。在一个实施例中，导出一个或多个体积描记信号的脉冲形状的度量，并且基于脉冲形状的度量检测静脉脉动的存在。脉冲形状度量的示例包括偏差度量和脉冲周期间隔中最小到最大时间的比率。在示例性实施例中，基于一个或多个体积描记信号的脉冲形状的度量以及体积描记信号的相位比较来检测静脉脉动的存在。

18. 发明授权

US08060171B2 Medical sensor for reducing motion artifacts and technique for using the same 有权
公开(公告)号：US08060171B2
公开(公告)日：2011-11-15
申请号：US11497089
申请日：2006-08-01
申请人： Carine Hoarau , Clark R. Baker, Jr. , Edward Karst
发明人： Carine Hoarau , Clark R. Baker, Jr. , Edward Karst
IPC分类号： A61B5/1455
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.

19. 发明授权

US07931599B2 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：US07931599B2
公开(公告)日：2011-04-26
申请号：US11070629
申请日：2005-03-01
申请人： Clark R. Baker, Jr. , Thomas J. Yorkey
发明人： Clark R. Baker, Jr. , Thomas J. Yorkey
IPC分类号： A61B5/024 , G06F17/00
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。

20. 发明授权

US06721584B2 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 有权
公开(公告)号：US06721584B2
公开(公告)日：2004-04-13
申请号：US09876004
申请日：2001-06-06
申请人： Clark R. Baker, Jr. , Thomas J. Yorkey
发明人： Clark R. Baker, Jr. , Thomas J. Yorkey
IPC分类号： A61B500
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.

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