Apparatus and method for detecting abnormal cardiac rhythms using an ultrasound sensor in an arrhythmia control system
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United States of America Patent
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Feb 2, 1993
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N/A
app pub date -
Mar 8, 1991
filing date -
Mar 8, 1991
priority date (Note) -
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Abstract
An antitachycardia pacer and pacing method automatically monitors and supports a patient's hemodynamic status by measuring cardiac output using an ultrasonic sensor. By analyzing cardiac output, the pacer determines whether the heart is beating normally or under conditions of exercise, bradycardia, tachycardia, or fibrillation. If the heart is functioning normally or in bradycardia or exercise, the pacer supports the patient's hemodynamic status by electrically stimulating the heart. The pacer analyzes cardiac output information, detects and classifies abnormal rhythms of tachycardia and fibrillation on the basis of this analysis, and initiates an appropriate therapy accordingly.
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