Apparatus and method for identifying atrial arrhythmia by far-field sensing
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United States of America Patent
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Sep 22, 2015
Grant Date -
Aug 7, 2014
app pub date -
Apr 4, 2014
filing date -
Nov 21, 2001
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Abstract
In a subcutaneous implantable cardioverter/defibrillator, cardiac arrhythmias are detected to determine necessary therapeutic action. Cardiac signal information is sensed from far field electrodes implanted in a patient. The sensed cardiac signal information is then amplified and filtered. Parameters such as rate, QRS pulse width, cardiac QRS slew rate, amplitude and stability measures of these parameters from the filtered cardiac signal information are measured, processed and integrated to determine if the cardioverter/defibrillator needs to initiate therapeutic action.
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