Apparatus and method of arrhythmia detection in a subcutaneous implantable cardioverter/defibrillator
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United States of America Patent
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Jun 22, 2004
Grant Date -
May 22, 2003
app pub date -
Nov 21, 2001
filing date -
Nov 21, 2001
priority date (Note) -
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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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