公开(公告)号：US20200046302A1

公开(公告)日：2020-02-13

申请号：US16535228

申请日：2019-08-08

Applicant: Covidien LP

Inventor： Dominique Jacquel ,  Paul S. Addison ,  David Ming Hui Foo

IPC: A61B5/00 ,  A61B5/08 ,  A61B5/1455 ,  A61B5/1171 ,  H04N13/204 ,  G06T7/55 ,  G06K9/20

Abstract: The present disclosure relates to the field of medical monitoring, and, in particular, to non-contact detecting and monitoring of patient breathing. Systems, methods, and computer readable media are described for calculating a change in depth of regions in one or more regions of interest (ROI's) on a patient and assigning one or more visual indicators to the regions based on the calculated changes in depth of the regions over time. In some embodiments, one or more breathing parameter signals corresponding to the regions can be generated and/or analyzed. In these and other embodiments, the one or more visual indicators can be displayed overlaid onto the regions in real-time. In these and still other embodiments, the systems, methods, and/or computer readable media (i) can display one or more generated breathing parameter signals in real-time and/or (ii) can trigger an alert and/or an alarm when a breathing abnormality is detected.

公开(公告)号：US20190328337A1

公开(公告)日：2019-10-31

申请号：US15962503

申请日：2018-04-25

Applicant: Covidien LP

Inventor： Paul S. Addison ,  Dean Montgomery ,  Andre Antunes

IPC: A61B5/00 ,  A61B5/03 ,  A61B5/021

Abstract: In some examples, a device includes a memory configured to store a first relationship between a blood pressure and another physiological parameter of a patient, the first relationship being indicative of cerebral autoregulation of the patient. The device also includes processing circuitry configured to receive first and second signals indicative of the blood pressure and the physiological parameter, respectively, of a patient. The processing circuitry is also configured to determine an expected value and an actual value of the physiological parameter at a particular blood pressure value of the first physiological signal. The processing circuitry is configured to determine, based on a difference between the actual value and the expected value, and store, in the memory, a second relationship between the blood pressure and the physiological parameter, the second relationship being indicative of a change in the cerebral autoregulation of the patient from the first relationship.

公开(公告)号：US20190328334A1

公开(公告)日：2019-10-31

申请号：US15962468

申请日：2018-04-25

Applicant: Covidien LP

Inventor： Paul S. Addison ,  Dean Montgomery

IPC: A61B5/00 ,  A61B5/0205 ,  G16H20/30

Abstract: In some examples, a device includes processing circuitry configured to determine a set of correlation coefficient values for first and second physiological parameters. The processing circuitry is further configured to determine a metric of the correlation coefficient values for a first plurality of bins and for a second plurality of bins, wherein each bin of the first plurality has a first bin parameter and each bin of the second plurality of bins has a second bin parameter different than the first bin parameter. The processing circuitry is also configured to determine a composite estimate of a limit of autoregulation of the patient based on the metric for the first plurality of bins and the metric for the second plurality of bins. The processing circuitry is configured to determine an autoregulation status based on the composite estimate and output, for display via the display, an indication of the autoregulation status.

公开(公告)号：US20190328241A1

公开(公告)日：2019-10-31

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 ,  A61B5/1455 ,  A61B5/00

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：US20190209046A1

公开(公告)日：2019-07-11

申请号：US16219360

申请日：2018-12-13

Applicant: Covidien LP

Inventor： Paul S. Addison ,  Dominique Jacquel ,  David Ming Hui Foo

IPC: A61B5/091 ,  G06T7/00 ,  G06T7/70

CPC classification number: A61B5/091 ,  A61B5/0077 ,  A61B5/1135 ,  A61B5/7485 ,  G06T7/0014 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/10028 ,  G06T2207/30196

Abstract: The present invention relates to the field of medical monitoring, and in particular non-contact video monitoring to measure tidal volume of a patient. Systems, methods, and computer readable media are described for determining a region of interest of a patient and monitoring that region of interest to determine tidal volume of the patient. This may be accomplished using a depth sensing camera to monitor a patient and determine how their chest and/or other body parts are moving as the patient breathes. This sensing of movement can be used to determine the tidal volume measurement.

公开(公告)号：US10219705B2

公开(公告)日：2019-03-05

申请号：US15146595

申请日：2016-05-04

Applicant: COVIDIEN LP

Inventor： Paul S. Addison ,  Dean Montgomery

IPC: A61B5/02 ,  A61B5/0205 ,  A61B5/1455 ,  A61B5/00 ,  G16H50/20 ,  A61B5/021 ,  G06F19/00

Abstract: A method for monitoring autoregulation includes using a processor for receiving one or more physiological signals, determining a correlation-based measure indicative of the patient's autoregulation based on the one or more physiological signals, calculating a data clustering metric indicative of a distribution of the correlation-based measure within a window of blood pressures, and determining whether the window of blood pressures is within an intact autoregulation zone or an impaired autoregulation zone based at least in part on the data clustering metric.

公开(公告)号：US10194870B2

公开(公告)日：2019-02-05

申请号：US15146548

申请日：2016-05-04

Applicant: COVIDIEN LP

Inventor： Dean Montgomery ,  Paul S. Addison

IPC: A61B5/02 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/1455 ,  G06F19/00

Abstract: A method for monitoring autoregulation includes receiving a blood pressure signal and a regional oxygen saturation signal from a patient. The method also includes determining one or more pairs of linear correlation lines between the blood pressure signal and the regional oxygen saturation signal based on one or more bins. Each of the one or more bins includes one or more regional oxygen saturation values derived from the regional oxygen saturation signal. The method also includes determining a value indicative of the patient's autoregulation status based on a first pair of linear correlation lines selected from the one or more pairs of linear correlation lines and providing a signal indicative of the patient's autoregulation status to an output device.

公开(公告)号：US20180256098A1

公开(公告)日：2018-09-13

申请号：US15926432

申请日：2018-03-20

Applicant: Covidien LP

Inventor： Paul S. Addison ,  James N. Watson

IPC: A61B5/00 ,  A61B5/04 ,  A61B5/048

CPC classification number: A61B5/4821 ,  A61B5/0006 ,  A61B5/04014 ,  A61B5/0476 ,  A61B5/048 ,  A61B5/7257 ,  A61B5/726

Abstract: Methods and systems are presented for determining physiological information in a physiological monitor. A physiological signal (e.g., an EEG signal) received from a subject is wavelet transformed and first and second related features that vary in scale over time are identified in the transformed signal. First and second coupled ridges of the respective first and second related features may also be identified in the transformed signal. A non-stationary relationship parameter is determined and is indicative of the relationship between the first and second features and/or between the first and second ridges. Physiological information, which may be indicative of a level of awareness of a subject, is determined based on the non-stationary relationship parameter. This physiological information may be used, for example, in an operating room to monitor/regulate the subject's anesthetic state while under general anesthesia or in an intensive care unit to monitor the subject's sedateness and administer medication accordingly.

公开(公告)号：US20180049649A1

公开(公告)日：2018-02-22

申请号：US15666167

申请日：2017-08-01

Applicant: COVIDIEN LP

Inventor： Paul S. Addison ,  Dean Montgomery

IPC: A61B5/021 ,  A61B5/0205 ,  A61B5/1455 ,  A61B5/145 ,  A61B5/026 ,  A61B5/00

CPC classification number: A61B5/021 ,  A61B5/002 ,  A61B5/0205 ,  A61B5/0261 ,  A61B5/14546 ,  A61B5/14552 ,  A61B5/14553 ,  A61B5/7246 ,  A61B5/7267 ,  A61B5/7278 ,  A61B5/7405 ,  A61B5/742 ,  A61B5/7445 ,  A61B5/746 ,  A61B2505/03 ,  A61B2505/07

Abstract: A monitor configured to monitor autoregulation includes a memory encoding one or more processor-executable routines and a processor configured to access and execute the one or more routines encoded by the memory. When executed, the routines cause the processor to receive one or more physiological signals from a patient, determine a measure indicative of an autoregulation status of the patient based on the one or more physiological signals, generate an autoregulation alarm indicative of an impaired autoregulation status when the measure exceeds a predetermined threshold for more than a predetermined period of time.

公开(公告)号：US20170065484A1

公开(公告)日：2017-03-09

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 ,  A61N1/39 ,  A61B5/00

CPC classification number: A61H31/005 ,  A61B5/0205 ,  A61B5/0261 ,  A61B5/0402 ,  A61B5/14551 ,  A61B5/4848 ,  A61B5/7264 ,  A61B5/7282 ,  A61H2201/5043 ,  A61H2201/5048 ,  A61H2201/5092 ,  A61H2230/06 ,  A61H2230/207 ,  A61H2230/40 ,  A61N1/3925

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.

Abstract translation: 用于确定心肺复苏（CPR）的功效的方法包括从与患者监测器，血氧测定传感器或ECG传感器相关联的处理器处接收来自血氧测定传感器的体积描记信号和来自ECG传感器的心电图（ECG）信号。 该方法包括使用处理器来确定与基于体积描记信号的CPR功效相关的第一指示符。 该方法还包括使用处理器来确定与基于ECG信号的CPR的功效相关的第二指示符。 该方法还包括使用处理器组合第一指示符和第二指示符以确定指示CPR的功效的组合度量。