System and method for characterizing cardiac arrhythmia
First Claim
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1. A method comprising:
- obtaining one or more photoplethysmography (PPG) signals from one or more PPG sensors of a monitoring apparatus, the one or more PPG signals being generated based upon optically detecting pulsed variations in blood flow;
obtaining a motion sensor signal from a motion sensor in the monitoring apparatus;
identifying, based upon the motion sensor signal, one or more periods of motion of the monitoring apparatus;
selectively obtaining and storing segments of the one or more PPG signals based on a temporal relationship between the segments of the one or more PPG signals and the identified one or more periods of motion;
determining that at least one segment of the one or more PPG signals is indicative of an arrhythmia event; and
generating, responsive to determining that the at least one segment of the one or more PPG signals is indicative of the arrhythmia event, a notification indicating that a user of the monitoring apparatus should obtain an electrocardiogram (ECG) measurement.
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Abstract
In an embodiment, a data processing method comprises obtaining one or more photoplethysmography (PPG) signals from one or more PPG sensors of a monitoring apparatus, the PPG signals being generated based upon optically detecting pulsed variations in blood flow; obtaining a motion sensor signal from a motion sensor in the monitoring apparatus; identifying, based upon the motion sensor signal, one or more periods of motion (e.g., low motion) of the monitoring apparatus; and selectively obtaining and storing segments of the PPG signals based on a temporal relationship between the segments of the PPG signals and the identified periods of motion.
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Citations
30 Claims
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1. A method comprising:
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obtaining one or more photoplethysmography (PPG) signals from one or more PPG sensors of a monitoring apparatus, the one or more PPG signals being generated based upon optically detecting pulsed variations in blood flow; obtaining a motion sensor signal from a motion sensor in the monitoring apparatus; identifying, based upon the motion sensor signal, one or more periods of motion of the monitoring apparatus; selectively obtaining and storing segments of the one or more PPG signals based on a temporal relationship between the segments of the one or more PPG signals and the identified one or more periods of motion; determining that at least one segment of the one or more PPG signals is indicative of an arrhythmia event; and generating, responsive to determining that the at least one segment of the one or more PPG signals is indicative of the arrhythmia event, a notification indicating that a user of the monitoring apparatus should obtain an electrocardiogram (ECG) measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 30)
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24. A system comprising:
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one or more processors coupled to electronic digital memory, the electronic digital memory storing one or more sequences of programmed instructions which, when executed by the one or more processors, cause the one or more processors to; obtain one or more photoplethysmography (PPG) signals from one or more PPG sensors of a monitoring apparatus, the one or more PPG signals being generated based upon optical detection of pulsed variations in blood flow by the one or more PPG sensors; obtain a motion sensor signal from a motion sensor in the monitoring apparatus; identify, based upon the motion sensor signal, one or more periods of motion of the monitoring apparatus; selectively obtain and store segments of the one or more PPG signals based on a temporal relationship between the segments of the one or more PPG signals and the identified one or more periods of motion; determine that at least one segment of the one or more PPG signals is indicative of an arrhythmia event; and generate, responsive to determining that the at least one segment of the one or more PPG signals is indicative of the arrhythmia event, a notification indicating that a user of the monitoring apparatus should obtain an electrocardiogram (ECG) measurement. - View Dependent Claims (25, 26, 27, 29)
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28. One or more non-transitory computer-readable media storing one or more sequences of instructions which, when executed by one or more processors, cause the one or more processors to:
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obtain one or more photoplethysmography (PPG) signals from one or more PPG sensors of a monitoring apparatus, the one or more PPG signals being generated based upon optically detecting pulsed variations in blood flow; obtain a motion sensor signal from a motion sensor in the monitoring apparatus; identify, based upon the motion sensor signal, one or more periods of motion of the monitoring apparatus; selectively obtain and store segments of the one or more PPG signals based on a temporal relationship between the segments of the one or more PPG signals and the identified one or more periods of motion; determine that at least one segment of the one or more PPG signals is indicative of an arrhythmia event; and generate, responsive to determining that the at least one segment of the one or more PPG signals is indicative of the arrhythmia event, a notification indicating that a user of the monitoring apparatus should obtain an electrocardiogram (ECG) measurement.
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Specification