公开(公告)号：US11844624B2

公开(公告)日：2023-12-19

申请号：US17029965

申请日：2020-09-23

Applicant: Covidien LP

Inventor： James N. Watson ,  Paul S. Addison

IPC: A61B5/00 ,  A61B5/369 ,  A61B5/1455 ,  G16H10/60 ,  G16H40/63 ,  G16H50/30

CPC classification number: A61B5/4821 ,  A61B5/14551 ,  A61B5/369 ,  A61B5/7221 ,  G16H10/60 ,  G16H40/63 ,  G16H50/30

Abstract: A patient monitor for monitoring cerebral activity of a patient may include a processor configured to determine a depth of consciousness index for the patient based on electroencephalography (EEG) data and determine regional oxygen saturation for the patient based on regional oximetry data. Additionally, the processor may be configured to determine a metric associated with cerebral activity of the patient based at least in part on the one or more values of the depth of consciousness index and the one or more regional oxygen saturation values and to provide the one or more values of a depth of consciousness index and the metric to an output device.

公开(公告)号：US11026586B2

公开(公告)日：2021-06-08

申请号：US15962438

申请日：2018-04-25

Applicant: Covidien LP

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

IPC: A61B5/0205 ,  A61B5/021 ,  A61B5/0295 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/024

Abstract: In some examples, a device includes processing circuitry configured to receive first and second signals indicative of first and second physiological parameters, respectively, of a patient. The processing circuitry is also configured to determine a first estimate of a limit of autoregulation of the patient based on the first and second signals. The processing circuitry is further configured to determine a difference between the first estimate of the limit of autoregulation and one or more other estimates of the limit of autoregulation. The processing circuitry is configured to determine a weighted average of the first estimate and a previous value of the limit of autoregulation based on the difference between the first estimate and the one or more other estimates. The processing circuitry is configured to determine an autoregulation status based on the weighted average and output, for display via the display, an indication of the autoregulation status.

公开(公告)号：US10932724B2

公开(公告)日：2021-03-02

申请号：US15184305

申请日：2016-06-16

Applicant: COVIDIEN LP

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

IPC: A61B5/02 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/1455 ,  A61B5/145 ,  A61B5/021

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.

公开(公告)号：US10251582B2

公开(公告)日：2019-04-09

申请号：US15971440

申请日：2018-05-04

Applicant: Covidien LP

Inventor： Paul S. Addison ,  James N. Watson

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

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.

公开(公告)号：US20180368761A1

公开(公告)日：2018-12-27

申请号：US16121436

申请日：2018-09-04

Applicant: Covidien LP

Inventor： Paul S. Addison ,  James N. Watson ,  Eric Morland

IPC: A61B5/00 ,  A61B5/053 ,  A61B5/0476 ,  A61B5/1455

Abstract: Systems, methods, sensors, and software for providing enhanced measurement and detection of patient pain response are provided herein. In a first example, a measurement system is provided that includes a capacitive system configured to measure a capacitance signal of tissue of the patient using a capacitive sensor applied to the tissue of the patient. The measurement system also includes a patient monitor configured to measure an electrical signal representing brain activity of the patient using a brain activity sensor applied to the tissue of the patient. The measurement system also includes a processing system configured to determine pain metrics based at least on the capacitance signal and the electrical signal, and determine a pain response of the patient based at least on the pain metrics and pain calibration information for the patient.

公开(公告)号：US20180249932A1

公开(公告)日：2018-09-06

申请号：US15971440

申请日：2018-05-04

Applicant: Covidien LP

Inventor： Paul S. Addison ,  James N. Watson

IPC: A61B5/1171 ,  A61B5/117

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.

公开(公告)号：US20180000360A1

公开(公告)日：2018-01-04

申请号：US15702112

申请日：2017-09-12

Applicant: Covidien LP

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

IPC: A61B5/0295 ,  A61B5/022 ,  A61B5/08 ,  A61B5/1455

CPC classification number: A61B5/0295 ,  A61B5/022 ,  A61B5/0816 ,  A61B5/14551

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 includes an input receiving a photoplethysmograph (PPG) signal representing light absorption by a patient's tissue. The monitor also includes a perfusion status indicator indicating a perfusion status of the PPG signal, and a fluid responsiveness predictor (FRP) calculator programmed to calculate an FRP value based on a respiratory variation of the PPG signal. The FRP calculator applies a correction factor based on the perfusion status indicator.

公开(公告)号：US20170069188A1

公开(公告)日：2017-03-09

申请号：US14848661

申请日：2015-09-09

Applicant: COVIDIEN LP

Inventor： Paul Stanley Addison ,  James N. Watson

IPC: G08B19/00 ,  A61B5/00 ,  G08B26/00

CPC classification number: G08B19/00 ,  A61B5/01 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/0245 ,  A61B5/0816 ,  A61B5/7282 ,  A61B5/746 ,  G08B25/14 ,  G08B26/008

Abstract: A method for reducing alarm fatigue, specifically, combining multiple physiological parameters, such as heart rate and respiratory rate, into one index number indicative of the patient's condition. The method includes detecting the severity of the patient's condition, generating, and displaying a scaled version of that index number relative to the severity of the patient's condition. The scaled index number is displayed on a patient monitor device. The scaled index number may have a size and color value.

Abstract translation: 一种降低警报疲劳的方法，特别是将诸如心率和呼吸频率的多个生理参数组合成指示患者状况的一个指数。 该方法包括检测患者状况的严重性，生成和显示相对于患者状况的严重性的该索引号的缩放版本。 缩放的索引号显示在病人监护仪上。 缩放的索引号可能具有大小和颜色值。

公开(公告)号：US20160278673A1

公开(公告)日：2016-09-29

申请号：US15064500

申请日：2016-03-08

Applicant: Covidien LP

Inventor： Paul S. Addison ,  Scott McGonigle ,  James N. Watson

IPC: A61B5/1455 ,  A61B5/00

CPC classification number: A61B5/14551 ,  A61B5/02416 ,  A61B5/7207 ,  A61B5/7275 ,  G16H20/40 ,  G16H50/30

Abstract: Methods and systems are provided for determining fluid responsiveness in the presence of noise. The system may determine an instantaneous value indicative of fluid responsiveness. In some embodiments, the system may determine a difference between an instantaneous value indicative of fluid responsiveness and a previous value indicative of fluid responsiveness, and select an update characteristic based on whether the difference indicates that the fluid responsiveness is increasing or decreasing. In some embodiments, the system may determine a parameter indicative of fluid responsiveness based on the update characteristic and a previously reported value indicative of fluid responsiveness.

Abstract translation: 提供了用于在存在噪声的情况下确定流体响应性的方法和系统。 系统可以确定指示流体响应性的瞬时值。 在一些实施例中，系统可以确定指示流体响应性的瞬时值与指示流体响应性的先前值之间的差异，并且基于该差异是否指示流体响应性正在增加或减小来选择更新特性。 在一些实施例中，系统可以基于更新特性和先前报告的指示流体响应性的值来确定指示流体响应性的参数。

公开(公告)号：US20150257643A1

公开(公告)日：2015-09-17

申请号：US14657678

申请日：2015-03-13

Applicant: Covidien LP

Inventor： James N. Watson ,  Paul S. Addison ,  James H. Dripps ,  George Keith Manning

IPC: A61B5/00 ,  A61B5/1455 ,  A61B5/0205

CPC classification number: A61B5/0002 ,  A61B5/02055 ,  A61B5/02433 ,  A61B5/02438 ,  A61B5/0816 ,  A61B5/11 ,  A61B5/14552 ,  A61B5/6814 ,  A61B5/6816 ,  A61B5/6826 ,  A61B5/7285 ,  A61B5/746 ,  A61B2560/0214 ,  A61B2560/029 ,  A61B2562/08 ,  H04B5/0037 ,  H04W52/0216 ,  H04W52/0251 ,  H04W52/0254 ,  H04W52/0258 ,  H04W52/0261 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/42

Abstract: Systems and method for utilizing energy harvesting techniques to power a battery-less wireless medical sensor to perform intermittent operations are disclosed. The systems may include one or more sensing components configured to generate data related to one or more physiological parameters by performing intermittent measurements on a patient. The systems and method may include wireless communication circuitry configured to wirelessly transmit the data to a monitor. The monitor may be configured to operate with the battery-less wireless medical sensor or may download required operational algorithms if needed. The intermittent measurement and transmission may be asynchronously executed. The systems and method may include a processing device configured to determine when to perform the intermittent measurement and transmit data based at least upon a power source energy level, a rate at which to perform the intermittent measurement and transmit data, a prioritization, or a triggering event.

Abstract translation: 公开了利用能量采集技术为无电池无线医疗传感器供电以执行间歇操作的系统和方法。 系统可以包括被配置为通过对患者进行间歇测量来生成与一个或多个生理参数有关的数据的一个或多个感测组件。 系统和方法可以包括被配置为将数据无线传输到监视器的无线通信电路。 监视器可以被配置为使用无电池无线医疗传感器进行操作，或者如果需要，可以下载所需的操作算法。 可以异步执行间歇测量和传输。 该系统和方法可以包括：处理装置，其被配置为基于至少基于电源能量级别，执行间歇测量和传输数据的速率，优先级或触发来确定何时执行间歇测量并发送数据 事件。