System and method of extraction, identification, marking and display of heart valve signals
First Claim
1. A system for measuring cardiac time intervals, comprising:
- a non-invasive sensor unit comprising a transducer array for capturing electrical signals and composite vibration objects;
a processor configured to use the captured electrical signals and composite vibration objects to provide the operations of;
separating a plurality of individual heart vibrations of events of a cardiohemic system from the composite vibration objects by performing source estimation to separate the plurality of individual heart vibration events from the composite vibration objects as separated vibration sources;
identifying the plurality of individual heart vibration events from the composite vibration objects wherein identification of the separated vibration sources in individual heart beats of the cardiohemic events are associated with heart wall motion, blood motion, and heart valve events;
marking individual heart events from the plurality of individual heart vibration events with respect to an electrocardiogram signal; and
presenting the individual heart vibration events on a visual display extracted from body sounds from the composite vibration objects to aid in diagnosing one or more among pulmonary disease, respiratory disease, coronary artery disease, heart murmurs, valve abnormalities, heart failure, heart rhythm abnormalities or arrhythmias, vascular disease, congenital heart disease, cardiac resynchronization and risk factor modification.
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Accused Products
Abstract
A system (100) for monitoring and diagnosing heart conditions includes a sensor array (102) with accelerometers, an electrocardiogram sensor, and a system to synchronously capture and process (103, 105, or 106) composite heart signals. The system performs separation, identification and marking (201-205 or 501-509) of the signals, to extract information in cardiac vibrations. Machine learning, auditory scene analysis, or spare coding approaches can be used to resolve source separation problems. Analysis of the composite signals separates different vibration signals (302, 303, 304, 305), identifies streams for particular valve signal, and marks them with event time information with respect to a synchronous electrocardiogram signal (306). The psychoacoustic analysis mimics human auditory processing to enhance hearing of heart valve sounds by separating valve vibrations from the composite signal, and providing extraction, identification, marking and display of individual valve signals.
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Citations
13 Claims
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1. A system for measuring cardiac time intervals, comprising:
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a non-invasive sensor unit comprising a transducer array for capturing electrical signals and composite vibration objects; a processor configured to use the captured electrical signals and composite vibration objects to provide the operations of; separating a plurality of individual heart vibrations of events of a cardiohemic system from the composite vibration objects by performing source estimation to separate the plurality of individual heart vibration events from the composite vibration objects as separated vibration sources; identifying the plurality of individual heart vibration events from the composite vibration objects wherein identification of the separated vibration sources in individual heart beats of the cardiohemic events are associated with heart wall motion, blood motion, and heart valve events; marking individual heart events from the plurality of individual heart vibration events with respect to an electrocardiogram signal; and presenting the individual heart vibration events on a visual display extracted from body sounds from the composite vibration objects to aid in diagnosing one or more among pulmonary disease, respiratory disease, coronary artery disease, heart murmurs, valve abnormalities, heart failure, heart rhythm abnormalities or arrhythmias, vascular disease, congenital heart disease, cardiac resynchronization and risk factor modification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification