Cardiac monitor system and method for home and telemedicine application
First Claim
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1. A system for detecting aortic stenosis comprising:
- a monitoring device configured to be coupled to a patient, the monitoring device including a heart sound sensor configured to detect heart sounds of the patient, and a signal processor; and
a processor configured toreceive a signal representative of the detected heart sounds from the signal processor and process the signal representative of detected heart sounds to determine tested values of at least one of,peak frequencies of a first heart sound, a second heart sound, and a third heart sound of the patient, wherein the first heart sound is detected at closure of a mitral valve of the patient, the second heart sound is detected at the closure of an aortic valve and a pulmonary valve of the patient, and the third heart sound is detected at passive diastolic filling of ventricles of the patient,a ratio of a first time period from the second heart sound in a first cardiac cycle to the first heart sound in a second cardiac cycle and a second time period from the first heart sound in the second cardiac cycle to the second heart sound in the second cardiac cycle, anda heart beat cycle period including a systole period and a diastole period, andcompare at least one of the tested values to corresponding baseline values of the peak frequencies, the ratio, and the heart beat cycle periods stored in memory.
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Abstract
A system for detecting valvular malfunction includes a monitoring device and a processor. The monitoring device includes a heart sound sensor configured to detect heart sounds of the patient, and a signal processor. The processor is configured to receive a signal representative of the detected heart sounds from the signal processor, wherein the processor is configured to compare the signal to a baseline signal stored in memory. The processor may be part of the monitoring device or may be part of an external device, or both.
21 Citations
20 Claims
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1. A system for detecting aortic stenosis comprising:
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a monitoring device configured to be coupled to a patient, the monitoring device including a heart sound sensor configured to detect heart sounds of the patient, and a signal processor; and a processor configured to receive a signal representative of the detected heart sounds from the signal processor and process the signal representative of detected heart sounds to determine tested values of at least one of, peak frequencies of a first heart sound, a second heart sound, and a third heart sound of the patient, wherein the first heart sound is detected at closure of a mitral valve of the patient, the second heart sound is detected at the closure of an aortic valve and a pulmonary valve of the patient, and the third heart sound is detected at passive diastolic filling of ventricles of the patient, a ratio of a first time period from the second heart sound in a first cardiac cycle to the first heart sound in a second cardiac cycle and a second time period from the first heart sound in the second cardiac cycle to the second heart sound in the second cardiac cycle, and a heart beat cycle period including a systole period and a diastole period, and compare at least one of the tested values to corresponding baseline values of the peak frequencies, the ratio, and the heart beat cycle periods stored in memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for detecting valvular malfunction in a patient comprising the steps of:
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utilizing a cardiac monitor for in-home sensing of the patient'"'"'s heart sounds; processing the sensed heart sounds to determine tested values of at least one of, peak frequencies of a first heart sound, a second heart sound, and a third heart sound of the patient, wherein the first heart sound is detected at closure of a mitral valve of the patient, the second heart sound is detected at the closure of an aortic valve and a pulmonary valve of the patient, and the third heart sound is detected at passive diastolic filling of ventricles of the patient, a ratio of a first time period from the second heart sound in a first cardiac cycle to the first heart sound in a second cardiac cycle and a second time period from the first heart sound in the second cardiac cycle to the second heart sound in the second cardiac cycle, and a heart beat cycle period including a systole period and a diastole period, comparing at least one of the tested values the heart sound signals to corresponding baseline values of the peak frequencies, the ratio, and the heart beat cycle periods; and alerting the patient if at least one the tested values deviates from the corresponding baseline value in a pre-determined manner. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification