Heartbeat categorization
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United States of America Patent
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Jul 14, 2015
Grant Date -
Apr 30, 2015
app pub date -
Mar 19, 2014
filing date -
Oct 30, 2013
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Abstract
An automatic method for categorizing heartbeats using two or more selected ECG signals, the method comprising, when a heartbeat has been detected, the steps of: (a) determining a signal velocity for each selected signal at a categorization fiducial time tC within the detected heartbeat; (b) forming a vector F(tC) having as its components the velocities of each of the selected signals at time tC; (c) determining the angle between the vector F(tC) and a previously-stored template vector; (d) comparing the angle with a threshold angle; and (e) if the angle is less than the threshold angle, categorizing the heartbeat as similar to a heartbeat which corresponds to the template vector.
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