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51.发明公开公开(公告)号：US20230386635A1
公开(公告)日：2023-11-30
申请号：US18249524
申请日：2021-11-17
Applicant: Covidien LP
Inventor： Paul S. Addison , Dean Montgomery
CPC classification number: G16H20/10 , A61B5/4827 , A61B5/7475
Abstract: In some examples, a patient monitoring system includes processing circuitry configured to detect an occurrence of a nociception event of a patient during a medical procedure. The processing circuitry may, for example, determine, based at least in part on a nociception parameter of the patient in an interrogation window, a nociception parameter level, determine, based at least in part on the nociception parameter of the patient in a baseline window that corresponds to the interrogation window, a baseline nociception parameter level, determine a difference in nociception parameter levels between the baseline nociception parameter level and the nociception parameter level, detect, based at least in part on the difference in nociception parameter levels, an occurrence of a nociception event, and in response to detecting the occurrence of the nociception event, provide an indication to adjust an amount of analgesic administered to the patient.
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52.发明公开公开(公告)号：US20230309841A1
公开(公告)日：2023-10-05
申请号：US18041428
申请日：2021-09-13
Applicant: Covidien LP
Inventor： Paul S. Addison , Dean Montgomery
CPC classification number: A61B5/021 , A61B5/02405 , A61M16/04 , A61B5/346
Abstract: A patient monitoring system may include processing circuitry configured to receive an indication of a medical event, determine a set of nociception parameters of a patient that corresponds to the medical event, determine a nociception threshold based at least in part on the set of nociception parameters of the patient, compare a nociception parameter of the patient to the nociception threshold to detect a nociception event, and in response to detecting the nociception event, providing an indication to adjust an amount of analgesic administered to the patient.
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53.发明公开公开(公告)号：US20230284914A1
公开(公告)日：2023-09-14
申请号：US18320400
申请日：2023-05-19
Applicant: Covidien LP
Inventor： Paul Stanley Addison , James N. Watson , Dean Montgomery
IPC: A61B5/0205 , A61B5/00 , A61B5/02 , G16H40/63 , G16H50/30 , G16H50/20 , A61B5/021 , A61B5/026 , A61B5/145 , A61B5/1455
CPC classification number: A61B5/0205 , A61B5/4064 , A61B5/742 , A61B5/02028 , G16H40/63 , G16H50/30 , G16H50/20 , A61B5/021 , A61B5/026 , A61B5/14546 , A61B5/14553 , A61B5/7246 , A61B5/7425 , A61B5/743 , A61B5/0261 , A61B5/031
Abstract: A method for monitoring autoregulation includes, using a processor, using a processor to execute one or more routines on a memory. The one or more routines include receiving one or more physiological signals from a patient, determining a correlation-based measure indicative of the patient's autoregulation based on the one or more physiological signals, and generating an autoregulation profile of the patient based on autoregulation index values of the correlation-based measure. The autoregulation profile includes the autoregulation index values sorted into bins corresponding to different blood pressure ranges. The one or more routines also include designating a blood pressure range encompassing one or more of the bins as a blood pressure safe zone indicative of intact regulation and providing a signal to a display to display the autoregulation profile and a first indicator of the blood pressure safe zone.
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公开(公告)号：US20220304598A1
公开(公告)日：2022-09-29
申请号：US17210222
申请日：2021-03-23
Applicant: Covidien LP
Inventor： Dean Montgomery , Paul S. Addison , Andre Antunes
IPC: A61B5/1455 , A61B5/00
Abstract: In some examples, a system is configured to determine, using a neural network algorithm of a cerebral autoregulation model, a cerebral autoregulation status of the patient based at least in part on a blood pressure of the patient over a period of time and regional cerebral oxygen saturation of the patient over the period of time.
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公开(公告)号：US20220287579A1
公开(公告)日：2022-09-15
申请号：US17201437
申请日：2021-03-15
Applicant: Covidien LP
Inventor： Paul S. Addison , Dean Montgomery , Andre S.M. Antunes
Abstract: The present technology relates to patient monitoring systems and methods using plural PPG sensors in contact with a patient at different locations, wherein a comparison of the PPG data is performed to calculate a differential pulse transit time (DPTT) between the first and second locations, followed by a determination of continuous non-invasive blood pressure (CNIBP) using the PPG data from the plural and the calculated DPTT.
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Patent Agency Ranking
公开(公告)号：US11219376B2
公开(公告)日：2022-01-11
申请号：US16169794
申请日：2018-10-24
Applicant: Covidien LP
Inventor： Dean Montgomery , Paul S. Addison , Andre Antunes
Abstract: In some examples, a device includes sensing circuitry configured to receive one or more signals from a patient and processing circuitry configured to determine a plurality of autoregulation state values associated with a plurality of blood pressure values based on the one or more signals. The processing circuitry is further configured to determine that a first autoregulation state value of the plurality of autoregulation state values is anomalous based on other autoregulation state values of the plurality of autoregulation state values. The processing circuitry is also configured to modify the first autoregulation state value in response to determining that the first autoregulation state value is anomalous and determine an autoregulation status of the patient based on the plurality of autoregulation state values including the modified first autoregulation state value.
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公开(公告)号：US11202580B2
公开(公告)日：2021-12-21
申请号：US16204061
申请日：2018-11-29
Applicant: Covidien LP
Inventor： Paul S. Addison , Dean Montgomery , Andre Antunes
IPC: A61B5/02 , A61B5/0225 , A61B5/021 , A61B5/00 , A61B5/11 , A61B5/0245 , A61B5/022 , A61B5/1455
Abstract: In some examples, devices, systems, and techniques are configured to compensate for changes in sensed blood pressure due to issues such as blood pressure sensor movement. For example, processing circuitry of a device may determine a difference value between a first blood pressure value representative of a blood pressure at a first time and a second blood pressure value representative of the blood pressure at a second time. Responsive to determining that the difference value is greater than or equal to a threshold value, the processing circuitry may generate updated blood pressure values by applying an offset value to the second blood pressure value and subsequently received blood pressure values that compensates for the difference value between the first blood pressure value and the second blood pressure value.
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公开(公告)号：US20210145366A1
公开(公告)日：2021-05-20
申请号：US17158746
申请日：2021-01-26
Applicant: Covidien LP
Inventor： Paul S. Addison , Dean Montgomery , James N. Watson
IPC: A61B5/00 , A61B5/0205 , A61B5/02 , A61B5/1455
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.
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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
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.
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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.
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