Patient monitoring and exception notification
First Claim
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1. A method for providing dynamic-threshold-based exception notifications on behalf of a subject, the method comprising:
- periodically measuring, with a medical device attached to the subject for periodically measuring the subject'"'"'s respiration, a plurality of subsequent measurements of breathing parameters of the subject during a first period and a second period, the breathing parameters including a first and a second breathing parameter, wherein the first breathing parameter is an average tidal volume of the subject and the second breathing parameter is an apnea-hypopnea index of the subject;
determining, with a processor, statistical metrics of the measured plurality of subsequent measurements, wherein the statistical metrics include;
a first statistical metric corresponding to measurements taken during the first period, wherein the first statistical metric includes trend estimation of the measurements during the first period; and
a second statistical metric subsequent to the first statistical metric corresponding to measurements taken during the second period, wherein the second statistical metric includes trend estimation of the measurements during the second period, and wherein the second period is longer than the first period;
automatically adjusting a breathing parameter threshold for the measured first breathing parameter, wherein the breathing parameter threshold is a threshold of average tidal volume, such that the breathing parameter threshold changes from a first threshold value at a first time during the first period to a second threshold value at a second time during the first period or the second period, wherein the automatically adjusting includes increasing the breathing parameter threshold in response to an increase in variability of the measured second breathing parameters in the first period and/or the second period;
verifying, with a processor, whether the statistical metrics warrant a notification on behalf of the subject to a user based on (i) the automatically-adjusted breathing parameter threshold at a given time during the first period and (ii) a comparison between the first statistical metric and the second statistical metric; and
conveying, via a user interface, the notification on behalf of the subject to the user.
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Abstract
A monitoring system is used to measure various parameters of the sleep, respiration, and/or other bodily functions of a subject. One or more metrics are calculated that quantify deviation from the mean, trends, changes over time, and/or other changes in the parameters. The metrics are used to generate notifications of these changes that can be conveyed to caregivers and/or other users.
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Citations
9 Claims
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1. A method for providing dynamic-threshold-based exception notifications on behalf of a subject, the method comprising:
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periodically measuring, with a medical device attached to the subject for periodically measuring the subject'"'"'s respiration, a plurality of subsequent measurements of breathing parameters of the subject during a first period and a second period, the breathing parameters including a first and a second breathing parameter, wherein the first breathing parameter is an average tidal volume of the subject and the second breathing parameter is an apnea-hypopnea index of the subject; determining, with a processor, statistical metrics of the measured plurality of subsequent measurements, wherein the statistical metrics include; a first statistical metric corresponding to measurements taken during the first period, wherein the first statistical metric includes trend estimation of the measurements during the first period; and a second statistical metric subsequent to the first statistical metric corresponding to measurements taken during the second period, wherein the second statistical metric includes trend estimation of the measurements during the second period, and wherein the second period is longer than the first period; automatically adjusting a breathing parameter threshold for the measured first breathing parameter, wherein the breathing parameter threshold is a threshold of average tidal volume, such that the breathing parameter threshold changes from a first threshold value at a first time during the first period to a second threshold value at a second time during the first period or the second period, wherein the automatically adjusting includes increasing the breathing parameter threshold in response to an increase in variability of the measured second breathing parameters in the first period and/or the second period; verifying, with a processor, whether the statistical metrics warrant a notification on behalf of the subject to a user based on (i) the automatically-adjusted breathing parameter threshold at a given time during the first period and (ii) a comparison between the first statistical metric and the second statistical metric; and conveying, via a user interface, the notification on behalf of the subject to the user. - View Dependent Claims (2, 3)
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4. A system for providing dynamic-threshold-based exception notification on behalf of a subject, the system comprising:
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a medical device attached to the subject configured to periodically measure subsequent measurements of breathing parameters of the subject during a first period and a second period, the breathing parameters including a first and second breathing parameters, wherein the first breathing parameter is an average tidal volume of the subject and the second breathing parameter is an apnea-hypopnea index of the subject; a user interface configured to exchange information with a user, wherein the information includes notifications; electronic storage to store measurements from the measurement device; and a processor configured to execute computer program modules, the computer program modules comprising; a statistical module configured to determine statistical metrics of the subsequent measurements measured by the medical device, wherein the statistical metrics include; a first statistical metric corresponding to measurements taken during the first period, and wherein, the first statistical metric includes trend estimation of the measurements during the first period; and a second statistical metric subsequent to the first statistical metric corresponding to measurements measured during the second period, wherein the second period is longer than the first period, and wherein the second statistical metric includes trend estimation of the measurements during the second period; a verification module configured to automatically adjusting a breathing parameter threshold for the measured first breathing parameter, wherein the breathing parameter threshold is a threshold of average tidal volume, such that the breathing parameter threshold changes from a first threshold value at a first time during the first period to a second threshold value at a second time during the first period or the second period, wherein the automatically adjusting includes increasing the breathing parameter threshold in response to an increase in variability of the measured second breathing parameters in the first period and/or the second period; and verify whether the determined statistical metrics warrant a notification on behalf of the subject based on (i) the automatically-adjusted breathing parameter threshold at a given time during the first period and (ii) a comparison between the first statistical metric and the second statistical metric; and a user interface module configured to control the user interface to convey the notification on behalf of the subject to the user. - View Dependent Claims (5, 6)
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7. A system configured to provide dynamic-threshold-based exception notification on behalf of a subject, the system comprising:
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means for periodically measuring a plurality of subsequent measurements of breathing parameters of the subject during a first period and a second period, the breathing parameters including a first and second breathing parameters, wherein the first breathing parameter is an average tidal volume of the subject and the second breathing parameter is an apnea-hypopnea index of the subject; means for determining statistical metrics of the measured plurality of subsequent measurements, wherein the statistical metrics include; a first statistical metric corresponding to measurements taken during the first period, and wherein, the first statistical metric includes trend estimation of the measurements during the first period; and a second statistical metric subsequent to the first statistical metric corresponding to measurements measured during the second period, wherein the second statistical metric includes trend estimation of the measurements during the second period, and wherein the second period is longer than the first period; means for automatically adjusting a breathing parameter threshold for the measured first breathing parameter, wherein the breathing parameter threshold is a threshold of average tidal volume, such that the breathing parameter threshold changes from a first threshold value at a first time during the first period to a second threshold value at a second time during the first period or the second period, wherein the automatically adjusting includes increasing the breathing parameter threshold in response to an increase in variability of the measured second breathing parameters in the first period and/or the second period; and means for verifying whether the statistical metrics warrant a notification on behalf of the subject to a user based on (i) the automatically-adjusted breathing parameter threshold at a given time during the first period and (ii) a comparison between the first statistical metric and the second statistical metric; and means for conveying the notification on behalf of the subject to the user. - View Dependent Claims (8, 9)
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Specification