Non-invasive acoustic screening device for coronary stenosis
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United States of America Patent
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Apr 11, 2000
Grant Date -
N/A
app pub date -
Oct 1, 1998
filing date -
Oct 1, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for detecting coronary stenosis. The apparatus comprises an acoustic sensor and a microcomputer that identifies the standard S1 and S2 heart sounds, heart rate, and determines the diastolic interval of the subject and thereafter estimates the acoustic energy levels within a 2 octave band around approximately 20 Hz during diastole. Based upon such estimation, a diagnosis can be rendered as to the presence and degree of stenosis from the coronary artery.
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