APPARATUS, SYSTEM, AND METHOD FOR MONITORING PHYSIOLOGICAL SIGNS
First Claim
1. An apparatus useful in detecting, analyzing, and displaying one or more of respiration, cardiac activity, and bodily function or movement of a living subject, the apparatus comprising:
- a processor configured to analyze a signal reflected from the subject without physical contact with or mechanical coupling to the subject and to derive measurements of said one or more of respiration, cardiac activity, and bodily function or movement therefrom; and
a display configured to provide the analyzed and derived measurements to a local or remote user of the apparatus.
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Accused Products
Abstract
An apparatus, system, and method monitors the motion, breathing, heart rate and sleep state of subjects, e.g., humans, in a convenient, non-invasive/non-contact, and low-cost fashion. More particularly, the motion, breathing, and heart rate signals are obtained through processing applied to a raw signal obtained in a non-contact fashion, typically using a radio-frequency sensor. Periods of sleep disturbed respiration, or central apnea can be detected through analysis of the respiratory signal. The mean heart rate, and derived information, such as the presence of cardiac arrhythmias can be determined from the cardiac signal. Motion estimates can be used to recognize disturbed sleep and periodic limb movements. The sleep state may be determined by applying a classifier model to the resulting streams of respiratory, cardiac and motion data. A means for display of the sleep state, respiratory, cardiac, and movement status may also be provided.
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Citations
37 Claims
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1. An apparatus useful in detecting, analyzing, and displaying one or more of respiration, cardiac activity, and bodily function or movement of a living subject, the apparatus comprising:
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a processor configured to analyze a signal reflected from the subject without physical contact with or mechanical coupling to the subject and to derive measurements of said one or more of respiration, cardiac activity, and bodily function or movement therefrom; and a display configured to provide the analyzed and derived measurements to a local or remote user of the apparatus. - 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, 36)
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24. A system for measuring, analyzing, and displaying one or more of a respiration parameter, cardiac activity, and bodily movement or function of a living subject, the system comprising:
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a transmitter arrangement configured to propagate a radio frequency (RF) signal toward the subject; a receiver arranged to receive an RF signal reflected from the subject and to determine a phase difference between the propagated RF signal and the reflected RF signal; a processor arranged to analyze the phase difference to produce measurements of one or more of a respiration parameter, cardiac activity, and a bodily movement or function, and a monitor to provide selected information to a local or remote user of the system by either an audible or visual indication, or both. - View Dependent Claims (25, 26)
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27. A method for measuring, analyzing, and displaying one or more physiological parameters of a living subject, the method comprising:
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sensing a signal reflected from the living subject; processing and analyzing the reflected signal by determining a phase difference associated with the signal reflected from the living subject; deriving said one or more physiological parameters pertaining to said living subject, said one or more physiological parameters comprising one or more of a respiration parameter, cardiac activity, and bodily movement or function of a subject; and making selected derived information available to a user. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A computer-readable medium containing computer instructions thereon which, when executed on a computer, carry out the functions of measuring, analyzing, and displaying one or more physiological parameters of a living subject by:
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processing and analyzing a signal reflected from the living subject by determining a phase difference associated with the reflected signal; deriving said one or more physiological parameters pertaining to said living subject, said one or more physiological parameters comprising one or more of a respiration parameter, cardiac activity, and bodily movement or function of a subject; and making selected derived information available to a user.
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37. An apparatus useful in detecting, analyzing, and displaying one or more of respiration, cardiac activity, and bodily function or movement of a living subject, the apparatus comprising:
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a processor configured to analyze a signal reflected from the subject and to derive measurements of said one or more of respiration, cardiac activity, and bodily function or movement therefrom, wherein said processor determines a phase difference associated with said signal reflected from the subject to derive one or more of said measurements; and a display configured to provide the analyzed and derived measurements to a local or remote user of the apparatus.
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Specification