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    System and method for identifying autoregulation zones
    42.
    发明授权
    System and method for identifying autoregulation zones 有权

    公开(公告)号：US10463292B2

    公开(公告)日：2019-11-05

    申请号：US15293610

    申请日：2016-10-14

    Applicant: COVIDIEN LP

    Inventor： Paul Stanley Addison ,  James N. Watson ,  Dean Montgomery

    IPC: A61B5/00 ,  A61B5/1455 ,  A61B5/02 ,  A61B5/026 ,  A61B5/0205 ,  A61B5/021 ,  G16H50/20 ,  G16H40/63 ,  G16H50/30 ,  G16H20/40

    Abstract: A system configured to monitor autoregulation includes a medical sensor configured to be applied to a patient and to generate a regional oxygen saturation signal. The system includes a controller having a processor configured to receive the regional oxygen saturation signal and a blood pressure signal and to determine a cerebral oximetry index (COx) based on the blood pressure signal and the regional oxygen saturation signal. The processor is also configured to apply a data clustering algorithm to cluster COx data points over a range of blood pressures, identify a first cluster of COx data points that corresponds to an intact autoregulation zone for the patient, and provide a first output indicative of the intact autoregulation zone for the patient.

    System and method for cardiopulmonary resuscitation
    43.
    发明授权
    System and method for cardiopulmonary resuscitation 有权

    公开(公告)号：US10426695B2

    公开(公告)日：2019-10-01

    申请号：US15259668

    申请日：2016-09-08

    Applicant: COVIDIEN LP

    Inventor： Paul S. Addison ,  James N. Watson

    IPC: A61H31/00 ,  A61B5/0205 ,  A61B5/026 ,  A61B5/00 ,  A61N1/39 ,  A61B5/0402 ,  A61B5/1455

    Abstract: A method for determining an efficacy of cardiopulmonary resuscitation (CPR) includes receiving a plethysmography signal from an oximetry sensor and an electrocardiogram (ECG) signal from an ECG sensor at a processor associated with a patient monitor, the oximetry sensor, or the ECG sensor. The method includes determining a first indicator related to the efficacy of CPR based on the plethysmography signal, using the processor. The method also includes determining a second indicator related to the efficacy of CPR based on the ECG signal, using the processor. The method further includes combining the first indicator and the second indicator to determine a combination metric indicative of the efficacy of CPR, using the processor.

    System and method for cardiopulmonary resuscitation
    44.
    发明授权
    System and method for cardiopulmonary resuscitation 有权

    公开(公告)号：US10413476B2

    公开(公告)日：2019-09-17

    申请号：US15000770

    申请日：2016-01-19

    Applicant: COVIDIEN LP

    Inventor： David J. Giarracco ,  Paul S. Addison ,  James N. Watson ,  Daniel Lisogurski

    IPC: A61H31/00 ,  A61B5/00 ,  A61B5/026 ,  A61B5/1455 ,  A61B5/024 ,  A61B5/11

    Abstract: A medical monitoring system includes an oximetry sensor having a light emitter positioned to emit light into a patient and a photodetector positioned to generate a plethysmography signal. The system includes a monitor having a processor configured to receive the plethysmography signal from the oximetry sensor and to identify a non-cardiac pulse based on a first pulse shape metric, the non-cardiac pulse being generated by the administration of cardiopulmonary resuscitation (CPR) to the patient. The processor is also configured to measure an oxygen saturation of the patient from the identified non-cardiac pulse and to output the measured oxygen saturation to a visual display.

    Systems and methods for identifying a medically monitored patient
    45.
    发明授权
    Systems and methods for identifying a medically monitored patient 有权

    公开(公告)号：US09974468B2

    公开(公告)日：2018-05-22

    申请号：US13841235

    申请日：2013-03-15

    Applicant: Covidien LP

    Inventor： Paul S. Addison ,  James N. Watson

    IPC: G08B1/08 ,  A61B5/1171 ,  A61B5/117 ,  A61B5/00 ,  A61B5/1455 ,  G06K9/00

    CPC classification number: A61B5/1171 ,  A61B5/117 ,  A61B5/14551 ,  A61B5/726 ,  G06K9/00523 ,  G06K9/00885 ,  G06K2009/00939

    Abstract: Systems and methods provided relate to patient sensors and/or patient monitors that recognize and/or identify a patient with physiological signals obtained from the sensor. A scalogram may be produced by applying a wavelet transform for the physiological signals obtained from the sensor. The scalogram may be a three dimensional model (having time, scale, and magnitude) from which certain physiological information may be obtained. For example, unique human physiological characteristics, also known as biometrics, may be determined from the scalograms. More specifically, monitoring the changes in the morphology of the photoplethysmographic (PPG) waveform transforms (e.g., scalogram) may determine patient-specific information that may be used to recognize and/or identify the patient, and that may be used to determine a proper or improper association between the patient and the wireless sensor and/or patient monitor.

    SYSTEMS AND METHODS FOR REDUCING SIGNAL NOISE WHEN MONITORING AUTOREGULATION
    48.
    发明申请
    SYSTEMS AND METHODS FOR REDUCING SIGNAL NOISE WHEN MONITORING AUTOREGULATION 审中-公开
    监控自动化时减少信号噪声的系统和方法

    公开(公告)号：US20160367197A1

    公开(公告)日：2016-12-22

    申请号：US15184305

    申请日：2016-06-16

    Applicant: COVIDIEN LP

    Inventor： Paul S. Addison ,  Dean Montgomery ,  James N. Watson

    IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/145

    CPC classification number: A61B5/7246 ,  A61B5/02007 ,  A61B5/02028 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/02108 ,  A61B5/022 ,  A61B5/0261 ,  A61B5/0295 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/14553 ,  A61B5/6803 ,  A61B5/7221 ,  A61B5/7264 ,  A61B5/7282 ,  A61B2505/03 ,  A61B2562/0233

    Abstract: A method for monitoring autoregulation includes, using a processor, receiving a blood pressure signal, a regional oxygen saturation signal, and a blood volume signal from a patient. The method also includes determining a first linear correlation between the blood pressure signal and the regional oxygen saturation signal and determining a second linear correlation between the blood pressure signal and the blood volume signal. The method also includes determining a confidence level associated with the first linear correlation based at least in part on the second linear correlation and providing a signal indicative of the patient's autoregulation status to an output device based on the linear correlation and the confidence level.

    Abstract translation: 用于监测自动调节的方法包括使用处理器从患者接收血压信号，区域氧饱和度信号和血液体积信号。 该方法还包括确定血压信号和区域氧饱和度信号之间的第一线性相关性，并确定血压信号与血容量信号之间的第二线性相关。 该方法还包括至少部分地基于第二线性相关性来确定与第一线性相关性相关联的置信水平，并且基于线性相关性和置信水平向输出设备提供指示患者自动调节状态的信号。

    SYSTEM AND METHOD FOR SCALING A FLUID RESPONSIVENESS METRIC
    50.
    发明申请
    SYSTEM AND METHOD FOR SCALING A FLUID RESPONSIVENESS METRIC 审中-公开
    用于缩放流体响应公制的系统和方法

    公开(公告)号：US20140316278A1

    公开(公告)日：2014-10-23

    申请号：US14259812

    申请日：2014-04-23

    Applicant: COVIDIEN LP

    Inventor： Paul Stanley Addison ,  Rui Wang ,  Scott McGonigle ,  James N. Watson

    IPC: A61B5/00

    CPC classification number: A61B5/02416 ,  A61B5/0816 ,  A61B5/4848 ,  A61B5/7278

    Abstract: The present invention relates to physiological signal processing, and in particular to methods and systems for processing physiological signals to predict a fluid responsiveness of a patient. A medical monitor for monitoring a patient may include an input receiving a photoplethysmograph (PPG) signal representing light absorption by a patient's tissue, and a fluid responsiveness predictor (FRP) calculator programmed to calculate an FRP metric. The monitor also may include a memory storing a relationship between the FRP metric and a pulse pressure variation (PPV) metric. The FRP metric is calculated based on a respiratory variation of the PPG signal and based on the relationship.

    Abstract translation: 本发明涉及生理信号处理，特别涉及用于处理生理信号以预测患者的流体反应性的方法和系统。 用于监测患者的医疗监视器可以包括接收表示患者组织的光吸收的光电容积描记器（PPG）信号的输入端和被编程为计算FRP度量的流体响应性预测器（FRP）计算器。 监视器还可以包括存储FRP度量和脉冲压力变化（PPV）度量之间的关系的存储器。 基于PPG信号的呼吸变化并根据关系计算FRP度量。

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