Active implantable medical device including means for the evaluation of intracardiac volume
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United States of America Patent
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Aug 12, 2008
Grant Date -
Jun 1, 2006
app pub date -
Aug 18, 2005
filing date -
Aug 18, 2004
priority date (Note) -
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Abstract
An active implantable medical device having a plurality of connection terminals able to be connected to electrodes placed in at least three distinct respective sites in a myocardium; circuits for measuring an intracardiac bio-impedance, comprising circuits for injecting a current and circuits for collecting a voltage at respective poles of a configuration of said connection terminals, and circuits able to deliver at an output a dynamic impedance signal that is a function of the injected current and the collected voltage; and circuits for evaluating an intracardiac volume, receiving at in input the impedance signal and delivering at an output a dynamic value of volume representing an instantaneous absolute value of intracardiac volume.
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