Accurate cardiac event detection in an implantable cardiac stimulus device
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United States of America Patent
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Aug 16, 2022
Grant Date -
Jan 25, 2018
app pub date -
Sep 29, 2017
filing date -
Mar 7, 2008
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Abstract
Signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In some examples, detected events are analyzed to identify changes in detected event amplitudes. When detected event amplitudes are dissimilar from one another, a first set of detection parameters may be invoked, and, when detected event amplitudes are similar to one another, a second set of detection parameters may be invoked. Additional examples determine whether the calculated heart rate is “high” or “low,” and then may select a third set of detection parameters for use when the calculated heart rate is high.
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