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公开(公告)号：US11903744B2
公开(公告)日：2024-02-20
申请号：US18049116
申请日：2022-10-24
Applicant: Covidien LP
Inventor： Andre Antunes , Paul S. Addison , Dean Montgomery
CPC classification number: A61B5/7278 , A61B5/021 , A61B5/7203 , A61B5/7257
Abstract: In some examples, a method includes receiving a signal indicative of a blood pressure of a patient and identifying at least one first portion of the signal comprising a first characteristic of the signal exceeding a first threshold. The method also includes identifying at least one first portion of the signal comprising a second characteristic of the signal exceeding a second threshold, the first characteristic being different than the second characteristic. The method further includes determining a filtered signal indicative of the blood pressure of the patient by excluding the at least one first portion and the at least one second portion from the signal. The method includes determining a set of mean arterial pressure values based on the filtered signal and determining an autoregulation status of the patient based on the set of mean arterial pressure values.
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公开(公告)号：US11605282B2
公开(公告)日：2023-03-14
申请号：US16838989
申请日：2020-04-02
Applicant: Covidien LP
Inventor： Dean Montgomery , Paul S. Addison , Andre Antunes
IPC: G08B21/04 , A61B5/0205 , A61B5/1455 , A61B5/00 , G06N3/08 , G06N3/04 , G08B21/18 , A61B5/024
Abstract: Implementations described herein disclose a method of determining how well predictions of an impending hypoxia are reported in real-time, so that a user has higher confidence in the reported predictions. Specifically, the method of predicting oxygen level desaturation disclosed herein includes generating an input sequence of oxygen levels based on an input signal sequence, the input signals indicative of a physiological condition of a patient, generating an input feature sequence based on at least one of the input signal sequence and the input sequence of oxygen levels, generating, using a neural network, a predicted value sequence of the oxygen levels based on the input feature sequence, comparing the predicted value sequence of the oxygen levels with the input sequence of oxygen levels for a predetermined temporal window to generate a predicted sequence confidence value, and generating, in response to determining that the predicted sequence confidence value is above a threshold confidence value, an oxygen level desaturation prediction based on the predicted value sequence.
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公开(公告)号：US20200229773A1
公开(公告)日：2020-07-23
申请号：US16838673
申请日：2020-04-02
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：US11839471B2
公开(公告)日：2023-12-12
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
CPC classification number: A61B5/14553 , A61B5/7264
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：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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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：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：US20240197265A1
公开(公告)日：2024-06-20
申请号：US18417850
申请日：2024-01-19
Applicant: COVIDIEN LP
Inventor： Andre Antunes , Paul S. Addison , Dean Montgomery
CPC classification number: A61B5/7278 , A61B5/021 , A61B5/7203 , A61B5/7257
Abstract: In some examples, a method includes receiving a signal indicative of a blood pressure of a patient and identifying at least one first portion of the signal comprising a first characteristic of the signal exceeding a first threshold. The method also includes identifying at least one first portion of the signal comprising a second characteristic of the signal exceeding a second threshold, the first characteristic being different than the second characteristic. The method further includes determining a filtered signal indicative of the blood pressure of the patient by excluding the at least one first portion and the at least one second portion from the signal. The method includes determining a set of mean arterial pressure values based on the filtered signal and determining an autoregulation status of the patient based on the set of mean arterial pressure values.
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公开(公告)号：US11478200B2
公开(公告)日：2022-10-25
申请号：US16218160
申请日：2018-12-12
Applicant: Covidien LP
Inventor： Andre Antunes , Paul S. Addison , Dean Montgomery
Abstract: In some examples, a method includes receiving a signal indicative of a blood pressure of a patient and identifying at least one first portion of the signal comprising a first characteristic of the signal exceeding a first threshold. The method also includes identifying at least one first portion of the signal comprising a second characteristic of the signal exceeding a second threshold, the first characteristic being different than the second characteristic. The method further includes determining a filtered signal indicative of the blood pressure of the patient by excluding the at least one first portion and the at least one second portion from the signal. The method includes determining a set of mean arterial pressure values based on the filtered signal and determining an autoregulation status of the patient based on the set of mean arterial pressure values.
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