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173 条记录 (耗时 0.036 秒)

    Estimating transform values using signal estimates
    53.
    发明授权
    Estimating transform values using signal estimates 有权
    使用信号估计估算变换值

    公开(公告)号：US08364225B2

    公开(公告)日：2013-01-29

    申请号：US12469491

    申请日：2009-05-20

    申请人： Paul Stanley Addison ,  James Nicholas Watson ,  Braddon M. Van Slyke

    发明人： Paul Stanley Addison ,  James Nicholas Watson ,  Braddon M. Van Slyke

    IPC分类号： A61B5/00 ,  A61B5/02 ,  A61B5/08 ,  G01N33/48 ,  G01N33/50

    CPC分类号： A61B5/14551 ,  A61B5/726 ,  A61B2562/0233 ,  A61B2562/046

    摘要： According to embodiments, estimated values for a signal transform may be generated using estimated values for the signal. Signal parameters may then be determined based on the estimated signal transform. A first portion of a signal may be obtained. A second portion of the signal may be estimated. The second portion of the signal may correspond to a portion of the that is unknown, that is not yet available and/or that is obscured by noise and/or artifacts. A transform (e.g., a continuous wavelet transform) of both of the signal portions may be performed. One or more parameters corresponding to the signal may then be determined from transformed signal.

    摘要翻译： 根据实施例，可以使用信号的估计值来生成信号变换的估计值。 然后可以基于估计的信号变换来确定信号参数。 可以获得信号的第一部分。 可以估计信号的第二部分。 信号的第二部分可以对应于未知的部分，即尚不可用和/或被噪声和/或伪影遮蔽的部分。 可以执行两个信号部分的变换（例如，连续小波变换）。 然后可以从变换的信号确定对应于信号的一个或多个参数。

    Systems and methods for monitoring heart rate and blood pressure correlation
    55.
    发明授权
    Systems and methods for monitoring heart rate and blood pressure correlation 有权
    监测心率和血压相关的系统和方法

    公开(公告)号：US08216136B2

    公开(公告)日：2012-07-10

    申请号：US12398826

    申请日：2009-03-05

    申请人： Paul Stanley Addison ,  James Watson ,  Rakesh Sethi

    发明人： Paul Stanley Addison ,  James Watson ,  Rakesh Sethi

    IPC分类号： A61B5/02

    CPC分类号： G06F19/345 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/7264 ,  G06F19/00 ,  G06F19/3406 ,  G16H40/63 ,  G16H50/20

    摘要： Systems and methods are provided for monitoring a correlation between heart rate and blood pressure in a patient. When a characteristic of the correlation exceeds a threshold, a patient status indicator signal is sent to a monitoring device. In some embodiments, the patient status indicator signal indicates a particular medical condition or alerts a care provider to a change in status. In some embodiments, the heart rate signal is used to improve a blood pressure estimate generated by a different signal. In some embodiments, the heart rate, blood pressure and correlation signals are used in a predictive mathematical model to estimate patient status or outcome.

    摘要翻译： 提供了系统和方法来监测患者心率和血压之间的相关性。 当相关特性超过阈值时，将患者状态指示信号发送到监视装置。 在一些实施例中，患者状态指示符信号指示特定医疗状况或警告护理提供者改变状态。 在一些实施例中，心率信号用于改善由不同信号产生的血压估计。 在一些实施例中，在预测数学模型中使用心率，血压和相关信号来估计患者状态或结果。

    LOW PERFUSION SIGNAL PROCESSING SYSTEMS AND METHODS
    58.
    发明申请
    LOW PERFUSION SIGNAL PROCESSING SYSTEMS AND METHODS 有权
    低灌注信号处理系统和方法

    公开(公告)号：US20110307184A1

    公开(公告)日：2011-12-15

    申请号：US13215349

    申请日：2011-08-23

    申请人： James Nicholas Watson ,  Paul Stanley Addison ,  Edward M McKenna

    发明人： James Nicholas Watson ,  Paul Stanley Addison ,  Edward M McKenna

    IPC分类号： G06F19/10 ,  G01N33/48

    CPC分类号： G06F19/10 ,  A61B5/0261 ,  A61B5/1455 ,  A61B5/726 ,  G01N33/48

    摘要： In some embodiments, systems and methods for identifying a low perfusion condition are provided by transforming a signal using a wavelet transform to generate a scalogram. A pulse band and adjacent marker regions in the scalogram are identified. Characteristics of the marker regions are used to detect the existence of a lower perfusion condition. If such a condition is detected, an event may be triggered, such as an alert or notification.

    摘要翻译： 在一些实施例中，用于识别低灌注条件的系统和方法通过使用小波变换变换信号以产生缩放图来提供。 识别出标尺中的脉冲带和相邻的标记区域。 标记区域的特征用于检测较低灌注条件的存在。 如果检测到这种情况，则可能触发事件，例如警报或通知。

    Systems and methods for a wavelet transform viewer
    59.
    发明授权
    Systems and methods for a wavelet transform viewer 有权
    小波变换查看器的系统和方法

    公开(公告)号：US07944551B2

    公开(公告)日：2011-05-17

    申请号：US12249046

    申请日：2008-10-10

    申请人： Paul Stanley Addison ,  James Watson

    发明人： Paul Stanley Addison ,  James Watson

    IPC分类号： A61B5/1455

    CPC分类号： A61B5/726 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/7225 ,  A61B5/742 ,  G06F19/00 ,  G06T5/10 ,  G06T2207/20064 ,  G06T2207/30076 ,  G16H40/63

    摘要： Techniques for the display of a signal with a wavelet transform of that signal in a wavelet transform viewer are disclosed, according to embodiments. According to embodiments, the wavelet transform viewer can display a plot of physiological signals such as a photoplethysmograph (PPG) signal. A portion of the plot of the signal can be selected. A wavelet transform the selected portion of the signal can be calculated and a wavelet plot of the tranformed signal can be displayed simultaneously with that signal. A plot of the selected portion of the signal can also be simultaneously displayed with both the plot of the signal and the wavelet plot.

    摘要翻译： 根据实施例公开了用于在小波变换观察器中显示具有该信号的小波变换的信号的技术。 根据实施例，小波变换观察器可以显示诸如光电容积描记器（PPG）信号的生理信号的图。 可以选择信号图的一部分。 可以计算小波变换信号的选定部分，并且可以与该信号同时显示变换信号的小波图。 信号的所选部分的图也可以同时显示信号和小波图的绘图。

    SYSTEMS AND METHODS FOR HIGH-PASS FILTERING A PHOTOPLETHYSMOGRAPH SIGNAL
    60.
    发明申请
    SYSTEMS AND METHODS FOR HIGH-PASS FILTERING A PHOTOPLETHYSMOGRAPH SIGNAL 有权
    用于高通滤波的系统和方法光电子能谱信号

    公开(公告)号：US20110077531A1

    公开(公告)日：2011-03-31

    申请号：US12568946

    申请日：2009-09-29

    申请人： James N. Watson ,  Paul Stanley Addison

    发明人： James N. Watson ,  Paul Stanley Addison

    IPC分类号： A61B5/02 ,  G06F19/00

    CPC分类号： A61B5/725 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/02125 ,  A61B5/02416 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/1495 ,  A61B5/7225 ,  A61B5/7239 ,  A61B5/7278 ,  A61B2562/0238

    摘要： According to embodiments, systems and methods for high-pass filtering a plethysmograph or photoplethysmograph (PPG) signal are disclosed. A sensor or probe may be used to obtain a plethysmograph or PPG signal from a subject. The sensor may be placed at any suitable location on the body, e.g., the forehead, finger, or toe. The PPG signal generated by the sensor may be high-pass filtered to disambiguate certain features of the PPG signal, including one or more characteristic points. The cut-off frequency for the high-pass filter may be greater than 0.75 Hz and less than 15 Hz. The cut-off frequency for the high-pass filter may be selected to be greater than the subject's computed pulse rate. These characteristic points on the filtered PPG signal may be used to compute non-invasive blood pressure measurements continuously or on a periodic basis. For example, the time difference between two or more characteristic points in a high-pass filtered version of the generated PPG signal may be computed. The time difference may be used to compute non-invasive blood pressure measurements continuously or on a periodic basis.

    摘要翻译： 根据实施例，公开了用于高通滤波体积描记器或光电容积描记器（PPG）信号的系统和方法。 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PPG信号。 传感器可以放置在身体上的任何合适位置，例如前额，手指或脚趾。 由传感器产生的PPG信号可以被高通滤波以消除PPG信号的某些特征，包括一个或多个特征点。 高通滤波器的截止频率可以大于0.75Hz且小于15Hz。 高通滤波器的截止频率可以选择为大于被摄体的计算脉冲频率。 过滤的PPG信号上的这些特征点可用于连续地或周期地计算非侵入性血压测量。 例如，可以计算生成的PPG信号的高通滤波版本中的两个或更多个特征点之间的时间差。 时间差可用于连续地或周期性地计算非侵入性血压测量。