公开(公告)号：US20090082651A1

公开(公告)日：2009-03-26

申请号：US12315449

申请日：2008-12-03

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 ,  A61B5/7203 ,  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。

公开(公告)号：US09675274B2

公开(公告)日：2017-06-13

申请号：US13243853

申请日：2011-09-23

申请人： Scott McGonigle ,  Paul S. Addison ,  James Ochs ,  James Watson

发明人： Scott McGonigle ,  Paul S. Addison ,  James Ochs ,  James Watson

IPC分类号： A61B5/08 ,  A61B5/1455 ,  A61B5/00

CPC分类号： A61B5/0816 ,  A61B5/14551 ,  A61B5/7232 ,  A61B5/7239

摘要： A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. The PPG signal may demonstrate morphology changes based on respiration. The system may calculate morphology metrics from the PPG signal, the first derivative of the PPG signal, the second derivative of the PPG signal, or any combination thereof. The morphology metrics may demonstrate amplitude modulation, baseline modulation, and frequency modulation of the PPG signal that is related to respiration. Morphology metric signals generated from the morphology metrics may be used to determine respiration information such as respiration rate.

公开(公告)号：US09378332B2

公开(公告)日：2016-06-28

申请号：US14020732

申请日：2013-09-06

申请人： Nellcor Puritan Bennett Ireland

发明人： James Nicholas Watson ,  Paul Stanley Addison

IPC分类号： G06G7/48 ,  G01N33/48 ,  G01N31/00 ,  G01N33/50 ,  G06F19/00 ,  G06F19/24 ,  G06F19/26 ,  G06F19/12 ,  A61B5/1455 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/1495

CPC分类号： A61B5/7282 ,  A61B5/0205 ,  A61B5/14551 ,  A61B5/1495 ,  A61B5/6814 ,  A61B5/6826 ,  A61B5/6838 ,  A61B5/726 ,  G06F19/00 ,  G06F19/12 ,  G06F19/24 ,  G06F19/26 ,  G06F19/34 ,  G16H40/40

摘要： Systems and methods for detecting the occurrence of events from a signal are provided. A signal processing system may analyze baseline changes and changes in signal characteristics to detect events from a signal. The system may also detect events by analyzing energy parameters and artifacts in a scalogram of the signal. Further, the system may detect events by analyzing both the signal and its corresponding scalogram.

摘要翻译： 提供了用于检测来自信号的事件的发生的系统和方法。 信号处理系统可以分析基线变化和信号特征的变化，以检测来自信号的事件。 该系统还可以通过分析信号的标尺中的能量参数和伪像来检测事件。 此外，系统可以通过分析信号及其对应的标尺来检测事件。

公开(公告)号：US09357934B2

公开(公告)日：2016-06-07

申请号：US12957546

申请日：2010-12-01

申请人： James N. Watson ,  Paul Stanley Addison ,  Rakesh Sethi ,  Keith Manning

发明人： James N. Watson ,  Paul Stanley Addison ,  Rakesh Sethi ,  Keith Manning

IPC分类号： A61B5/00 ,  G06F19/00 ,  A61B5/021 ,  A61B5/1455 ,  G01D18/00 ,  A61B5/024

CPC分类号： A61B5/02125 ,  A61B5/0031 ,  A61B5/024 ,  A61B5/02416 ,  A61B5/14551 ,  A61B5/746 ,  A61B2560/0223 ,  G01D18/008 ,  G06F19/00 ,  G16H50/20 ,  G16H50/30

摘要： Systems and methods are provided for storing event markers. The value of a monitored physiological metric may be monitored and compared to a reference value. A patient monitoring system may compute a difference between a monitored metric and a reference value, and compare the difference to a threshold value to determine whether a physiological event has occurred. Based on the determination, a patient monitoring system may store an event marker, trigger a response, update a metric value, or perform any other suitable function.

摘要翻译： 提供了系统和方法来存储事件标记。 监测的生理度量的值可以被监测并且与参考值进行比较。 患者监视系统可以计算所监视的度量和参考值之间的差异，并且将差异与阈值进行比较以确定是否已经发生生理事件。 基于该确定，患者监视系统可以存储事件标记，触发响应，更新度量值或执行任何其他合适的功能。

公开(公告)号：US09113815B2

公开(公告)日：2015-08-25

申请号：US13937080

申请日：2013-07-08

申请人： Nellcor Puritan Bennett Ireland

发明人： James Nicholas Watson ,  Paul Stanley Addison ,  David Clifton

IPC分类号： A61B5/08 ,  G06K9/00 ,  A61B5/1455 ,  A61B5/00

CPC分类号： A61B5/0806 ,  A61B5/0816 ,  A61B5/14551 ,  A61B5/726 ,  G06K9/0053

摘要： According to embodiments, systems, devices, and methods for ridge selection in scalograms are disclosed. Ridges or ridge components are features within a scalogram which may be computed from a signal such as a physiological (e.g., photoplethysmographic) signal. Ridges may be identified from one or more scalograms of the signal. Parameters characterizing these ridges may be determined. Based at least in part on these parameters, a ridge density distribution function is determined. A ridge is selected from analyzing this ridge density distribution function. In some embodiments, the selected ridge is used to determine a physiological parameter such as respiration rate.

摘要翻译： 根据实施例，公开了用于缩放图中的脊选择的系统，装置和方法。 脊或脊组件是可以从诸如生理（例如，光电体积描记号）信号的信号计算的标尺内的特征。 可以从信号的一个或多个缩放图来识别脊。 可以确定表征这些脊的参数。 至少部分地基于这些参数，确定脊密度分布函数。 从分析该脊密度分布函数中选择脊。 在一些实施例中，所选择的脊用于确定诸如呼吸速率的生理参数。

公开(公告)号：US09066691B2

公开(公告)日：2015-06-30

申请号：US12245425

申请日：2008-10-03

申请人： Paul Stanley Addison ,  James Nicholas Watson

发明人： Paul Stanley Addison ,  James Nicholas Watson

IPC分类号： A61B5/1455 ,  A61B5/00 ,  G06K9/64

CPC分类号： A61B5/726 ,  A61B5/14551 ,  A61B5/7203

摘要： According to embodiments, systems and methods for generating reference signals are provided. A signal may be transformed using a continuous wavelet transform. Regions of interest may be selected from a transform or the resulting scalogram that may be used to generate a reference signal to use in filtering the signal or other signals. Cross-correlation techniques may be used to cancel noise components or isolate non-noise components from the signal. A physiological parameter may then be determined from the filtered signal or isolated components in the signal.

摘要翻译： 根据实施例，提供了用于产生参考信号的系统和方法。 可以使用连续小波变换来变换信号。 感兴趣区域可以从可用于生成用于滤波信号或其他信号的参考信号的变换或生成的标尺中选择。 可以使用互相关技术来消除噪声分量或从信号中隔离非噪声分量。 然后可以从经滤波的信号或信号中的隔离分量确定生理参数。

公开(公告)号：US20140190479A1

公开(公告)日：2014-07-10

申请号：US13738834

申请日：2013-01-10

申请人： NELLCOR PURITAN BENNETT LLC

发明人： Kamlesh Sethiya ,  Emmet Bolger

IPC分类号： A61M16/04 ,  A61M16/20 ,  A61M16/06 ,  A61M16/10 ,  A61M16/14 ,  A61M16/00 ,  A61M16/08

CPC分类号： A61M16/0468 ,  A61M16/0051 ,  A61M16/0434 ,  A61M16/0472 ,  A61M16/0497 ,  A61M16/105 ,  A61M16/14 ,  A61M16/161 ,  A61M16/20 ,  A61M2205/584

摘要： A speaking valve includes a hollow body configured to be secured to a connector of a tracheostomy system disposed in a patient. The speaking valve further includes a cap that houses a valve member, which enables the speaking valve to act as a one-way check valve. The valve member, hollow body, or other components of the valve may include a material that undergoes a chemical changed when exposed to moisture, i.e., a hydrosensitive material. Particularly, the hydrosensitive material may exhibit a color change when exposed to moisture. As such, the hydrosensitive material may be useful in providing a visual indication of the saturation and/or moisture level of the speaking valve.

摘要翻译： 说话阀包括被配置为固定到设置在患者体内的气管造口术系统的连接器的空心体。 说话阀还包括容纳阀构件的盖，这使得说话阀能够用作单向止回阀。 阀构件，中空体或阀的其它部件可以包括在暴露于水分时经历化学变化的材料，即水敏材料。 特别地，当暴露于水分时，水敏材料可能表现出颜色变化。 因此，水敏材料可用于提供说话阀的饱和度和/或湿度水平的视觉指示。

公开(公告)号：US08696585B2

公开(公告)日：2014-04-15

申请号：US12242894

申请日：2008-09-30

申请人： Paul Stanley Addison ,  James Nicholas Watson

发明人： Paul Stanley Addison ,  James Nicholas Watson

IPC分类号： A61B5/02 ,  A61B8/14

CPC分类号： G06K9/527 ,  A61B5/14551 ,  A61B5/6843 ,  A61B5/726

摘要： According to embodiments, techniques for detecting probe-off events are disclosed. A sensor or probe may be used to obtain a plethysmograph or photoplethysmograph (PPG) signal from a subject. A wavelet transform of the signal may be performed and a scalogram may be generated based at least in part on the wavelet transform. One or more characteristics of the scalogram may be determined. The determined characteristics may include, for example, an energy decrease, a broadscale high-energy cone, a regular, repeated high-scale pattern, a low-scale information pattern; and a pulse band. The absence or presence of these and other characteristics, along with information about the characteristics, may be analyzed to detect a probe-off event. A confidence indicator may be calculated in connection with probe-off event detections and alarms may be generated when probe-off events occur.

摘要翻译： 根据实施例，公开了用于检测探测事件的技术。 可以使用传感器或探针来获得来自受试者的体积描记器或光电体积描记器（PPG）信号。 可以执行信号的小波变换，并且可以至少部分地基于小波变换来生成缩放图。 可以确定缩放图的一个或多个特征。 确定的特性可以包括例如能量减少，大尺度高能量锥，规则的，重复的高比例图案，低比例的信息图案; 和脉冲带。 可以分析这些和其他特征的缺失或存在以及关于特征的信息以检测探测事件。 可以结合探测事件检测计算置信指标，并且可以在发生探测事件时生成报警。

公开(公告)号：US20140081152A1

公开(公告)日：2014-03-20

申请号：US13619531

申请日：2012-09-14

申请人： Matt Clinton

发明人： Matt Clinton

IPC分类号： A61B6/00 ,  A61B5/021 ,  A61B5/024 ,  A61B5/02

CPC分类号： A61B5/02028 ,  A61B5/02416 ,  A61B5/02438 ,  A61B5/0402 ,  A61B5/7235 ,  A61B5/742 ,  A61B5/746 ,  A61B7/04 ,  A61B8/02

摘要： A PPG system for determining cardiac stability of a patient includes a PPG sensor configured to be secured to an anatomical portion of the patient, wherein the PPG sensor is configured to sense a physiological characteristic of the patient. The PPG system includes a monitor operatively connected to the PPG sensor. The monitor receives a PPG signal from the PPG sensor. The monitor includes a cardiac stability analysis module configured to determine an amplitude variance of the PPG signal over a predetermined time period and configured to determine a pulse period variance of the PPG signal over the time period. The cardiac stability analysis module is configured to determine cardiac stability as a function of the amplitude variance and the pulse period variance.

摘要翻译： 用于确定患者的心脏稳定性的PPG系统包括被配置为固定到患者的解剖部分的PPG传感器，其中所述PPG传感器被配置为感测患者的生理特征。 PPG系统包括可操作地连接到PPG传感器的监视器。 监视器从PPG传感器接收PPG信号。 监测器包括心脏稳定性分析模块，其被配置为在预定时间段内确定PPG信号的幅度方差，并且被配置为确定该时间段内的PPG信号的脉冲周期方差。 心脏稳定性分析模块被配置为根据幅度方差和脉搏周期方差来确定心脏稳定性。

公开(公告)号：US20140073975A1

公开(公告)日：2014-03-13

申请号：US13609431

申请日：2012-09-11

申请人： Pirow Engelbrecht ,  Fernando Rodriguez-Llorente ,  Nicholas James Wooder

发明人： Pirow Engelbrecht ,  Fernando Rodriguez-Llorente ,  Nicholas James Wooder

IPC分类号： A61B5/02 ,  A61B5/00

CPC分类号： A61B5/7246 ,  A61B5/02416 ,  A61B5/7203

摘要： A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.

摘要翻译： 生理监测系统可以处理来自受试者的生理信号，例如光体积描记信号。 系统可以从生理信号确定生理信息，例如生理速率。 系统可以使用搜索技术和鉴定技术来确定一个或多个初始化参数。 初始化参数可用于计算和鉴定生理速率。 该系统可以使用信号调节来减少生理信号中的噪声并改善生理信息的确定。 该系统可以使用鉴定技术来确认确定的生理参数。 当处理生理信号时，系统还可以使用自相关技术，互相关技术，快速启动技术和/或参考波形。