公开(公告)号：US09801584B2

公开(公告)日：2017-10-31

申请号：US13598312

申请日：2012-08-29

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/1455 ,  A61B5/00

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.

公开(公告)号：US08862194B2

公开(公告)日：2014-10-14

申请号：US12165256

申请日：2008-06-30

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/00 ,  A61B5/1455

CPC分类号： A61B5/7203 ,  A61B5/14551 ,  A61B5/7264 ,  A61B5/7282 ,  A61B5/7405 ,  A61B5/742 ,  A61B5/7455

摘要： The present disclosure relates, according to some embodiments, to devices, systems, and methods for estimating a physiological parameter in the presence of noise. For example, the disclosure relates, in some embodiments, to devices, systems, and methods for assessing (e.g., estimating, measuring, calculating) oxygen saturation (SpO2). Methods of assessing SpO2 may include assessing a noise metric associated with motion artifact. In some embodiments, a percentage (e.g., an empirically determined percentage) of a noise metric may be simply added to the SpO2 estimate to produce a corrected SpO2 estimate. An oximetry algorithm may include, according to some embodiments, combining multiple internal SpO2 estimates and associated noise and/or signal quality metrics (e.g., using a radial basis neural network) to produce a modified (e.g., corrected) SpO2 estimate (e.g., rather than merely selecting the estimate from a finite number of candidates). A modified SpO2 estimate may include little or no movement-based error.

摘要翻译： 根据一些实施例，本公开涉及用于在存在噪声的情况下估计生理参数的装置，系统和方法。 例如，在一些实施例中，本公开涉及用于评估（例如，估计，测量，计算）氧饱和度（SpO2）的装置，系统和方法。 评估SpO2的方法可能包括评估与运动伪影相关的噪声指标。 在一些实施例中，噪声度量的百分比（例如经验确定的百分比）可以简单地添加到SpO2估计值以产生校正的SpO2估计。 根据一些实施例，血氧测定算法可以包括组合多个内部SpO2估计和相关联的噪声和/或信号质量度量（例如，使用径向基神经网络）以产生经修改（例如，校正的）SpO2估计（例如， 而不仅仅是从有限数量的候选人中选择估计）。 修改的SpO2估计可能包括很少或没有基于运动的错误。

公开(公告)号：US08792949B2

公开(公告)日：2014-07-29

申请号：US12399304

申请日：2009-03-06

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/1455

CPC分类号： A61B5/14552 ,  A61B5/14551 ,  A61B5/7221 ,  A61B5/746 ,  G06F19/00 ,  G06F19/3418 ,  G16H40/63

摘要： Embodiments disclosed herein may describe systems and methods for reducing nuisance alarms using probability and/or accuracy of a measured physiological parameter, such as the pulse rate or SpO2 measurement generated by a pulse oximeter. Embodiments may include methods for adjusting a predetermined alarm threshold based on the probability distribution of the estimated pulse rate and/or oxygen saturation of a patient's blood.

摘要翻译： 本文公开的实施例可以描述使用测量的生理参数（例如由脉搏血氧计产生的脉搏率或SpO2测量）的概率和/或精度来减少麻烦警报的系统和方法。 实施例可以包括基于患者血液的估计脉率和/或氧饱和度的概率分布来调整预定警报阈值的方法。

公开(公告)号：US08509869B2

公开(公告)日：2013-08-13

申请号：US12467003

申请日：2009-05-15

申请人： Clark R. Baker, Jr. ,  Paul D. Mannheimer

发明人： Clark R. Baker, Jr. ,  Paul D. Mannheimer

IPC分类号： A61B5/00

CPC分类号： A61B5/14551

摘要： The present disclosure is generally directed to identifying and/or analyzing high resolution variations in a measured physiologic parameter, such as blood oxygen saturation (SpO2) measured using pulse oximetry. Present embodiments may include a system including a sensor comprising an emitter capable of emitting light at different wavelengths into a tissue bed, and a detector capable of detecting the light from the emitter after dispersion and/or reflection by the tissue bed. Further, the system may include a pulse oximeter capable of receiving signals from the sensor that are indicative of characteristics of the light detected by the detector, and utilizing the signals to estimate blood oxygen saturation values over time at a high resolution to facilitate detection of variations in the blood oxygen saturation values that are smaller in magnitude than an accuracy, display precision, and/or calibration of the blood oxygen saturation values.

摘要翻译： 本公开通常涉及鉴定和/或分析测量的生理参数中的高分辨率变化，例如使用脉搏血氧测定法测量的血氧饱和度（SpO2）。 本实施例可以包括包括传感器的系统，该传感器包括能够将不同波长的光发射到组织床中的发射器，以及能够在由组织床分散和/或反射之后检测来自发射体的光的检测器。 此外，该系统可以包括能够接收来自传感器的信号的脉搏血氧计，其指示由检测器检测到的光的特性，并且利用该信号以高分辨率随时间推定血氧饱和度值，以便于检测变化 在血氧饱和度值的范围内比血氧饱和度值的精度，显示精度和/或校准更小。

公开(公告)号：US08457706B2

公开(公告)日：2013-06-04

申请号：US12467013

申请日：2009-05-15

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/00

CPC分类号： A61B5/7264 ,  A61B5/14551 ,  A61B5/7221 ,  A61B5/725 ,  G06F19/00 ,  G16H50/20

摘要： A neural network is used to combine one or more estimates of a physiologic parameter with one or more associated signal quality metrics, creating a more accurate estimate of said physiologic parameter, as well as a second estimate of the accuracy of said physiologic parameter estimate.

摘要翻译： 神经网络用于将生理参数的一个或多个估计与一个或多个相关联的信号质量度量相结合，产生对所述生理参数的更准确的估计，以及所述生理参数估计的准确度的第二估计。

公开(公告)号：US08400290B2

公开(公告)日：2013-03-19

申请号：US12689900

申请日：2010-01-19

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： G08B23/00

CPC分类号： G06F3/0484 ,  A61M16/0051 ,  A61M16/0063 ,  A61M16/024 ,  A61M16/12 ,  A61M2016/0018 ,  A61M2016/0039 ,  A61M2016/1025 ,  A61M2205/18 ,  A61M2205/505 ,  G16H40/63

摘要： This disclosure describes systems and methods for reducing nuisance alarms associated with monitoring non-physiological parameters in a ventilatory system. Non-physiological parameters may include, but are not limited to, parameters that are internally monitored by the ventilator based on pre-configured ranges dictated by the manufacturer, by an applicable protocol, or by the clinician. Embodiments described herein seek to mitigate nuisance alarms by basing alarm conditions, at least in part, on an integral threshold such that an alarm is not generated when a monitored parameter briefly falls outside an acceptable range by a slight degree, but such that an alarm is generated when a monitored parameter falls outside an acceptable range by a more significant magnitude and/or duration.

摘要翻译： 本公开描述了用于减少与在通气系统中监测非生理参数相关联的麻烦警报的系统和方法。 非生理参数可以包括但不限于由通过呼吸机内部监测的参数，所述参数基于由制造商指定的预先配置的范围，适用的协议或由临床医生指定。 本文描述的实施例旨在通过将警报条件至少部分地基于积分阈值来基于警报状况来减轻妨扰警报，使得当监视的参数短暂地略微落在可接受范围之外但是使得警报是 当监视的参数在可接受的范围内超出更大的幅度和/或持续时间时产生。

公开(公告)号：US08116852B2

公开(公告)日：2012-02-14

申请号：US11541010

申请日：2006-09-29

申请人： Clark R. Baker, Jr. ,  Shannon E. Campbell

发明人： Clark R. Baker, Jr. ,  Shannon E. Campbell

IPC分类号： A61B6/00

CPC分类号： A61B5/445 ,  A61B5/0059 ,  A61B5/444 ,  A61B5/4869

摘要： A system configured to provide feedback regarding fluid parameters in the skin and/or compartments of an individual to facilitate early diagnosis of skin wounds and compartment syndromes.

摘要翻译： 一种被配置为提供关于个体的皮肤和/或隔室中的流体参数的反馈以便于皮肤伤口和隔室综合征的早期诊断的系统。

公开(公告)号：US07922665B2

公开(公告)日：2011-04-12

申请号：US11528862

申请日：2006-09-28

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/02

CPC分类号： A61B5/02427 ,  A61B5/0205 ,  A61B5/14551 ,  A61B5/7221

摘要： Embodiments of the present invention relate to a method for analyzing pulse data. In one embodiment, the method comprises receiving a signal containing data representing a plurality of pulses, the signal generated in response to detecting light scattered from blood perfused tissue. Further, one embodiment includes performing a pulse identification or qualification algorithm on at least a portion of the data, the pulse identification or qualification algorithm comprising at least one constant, and modifying the at least one constant based on results obtained from performing the pulse identification or qualification algorithm, wherein the results indicate that a designated number of rejected pulses has been reached.

摘要翻译： 本发明的实施例涉及一种用于分析脉冲数据的方法。 在一个实施例中，该方法包括接收包含表示多个脉冲的数据的信号，该信号响应于检测从血液灌注组织散射的光而产生。 此外，一个实施例包括对数据的至少一部分执行脉冲识别或鉴定算法，所述脉冲识别或鉴定算法包括至少一个常数，并且基于从执行脉冲识别获得的结果修改所述至少一个常数， 鉴定算法，其中结果指示已经达到指定数量的拒绝脉冲。

公开(公告)号：US07534212B2

公开(公告)日：2009-05-19

申请号：US10796566

申请日：2004-03-08

申请人： Clark R. Baker, Jr.

发明人： Clark R. Baker, Jr.

IPC分类号： A61B5/02

CPC分类号： A61B5/02416

摘要： A pulse oximeter which determines multiple heart rates, and selects between them based on the metrics of only one of the heart rate calculations. A primary heart rate calculation method is selected, and is used unless its metrics indicate questionable accuracy, in which case an alternative rate calculation is available and is used instead.

摘要翻译： 脉搏血氧计，其确定多个心率，并且基于仅一个心率计算的指标在它们之间进行选择。 选择主心率计算方法，并且除非其度量指示有问题的准确性，否则使用主要心率计算方法，在这种情况下替代率计算可用并且被替代使用。

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.