Methods and devices for tachyarrhythmia sensing and high-pass filter bypass
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United States of America Patent
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Feb 14, 2012
Grant Date -
Feb 8, 2007
app pub date -
Aug 4, 2005
filing date -
Aug 4, 2005
priority date (Note) -
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Abstract
The present invention, in illustrative embodiments, includes methods and devices for analyzing cardiac signals in an implantable cardiac stimulus system. Within the analysis, a threshold may be defined related to a cardiac event rate. If the cardiac event rate does not exceed the threshold, filtering of captured cardiac signals occurs, including attenuating T-waves. If the cardiac event rate does exceed the threshold, circuitry for analog filtering or programming for digital filtering is bypassed to avoid attenuating low frequency components of the captured cardiac signals.
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