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HEART MONITORING APPARATUS

  • US 20090299203A1
  • Filed: 06/03/2008
  • Published: 12/03/2009
  • Est. Priority Date: 06/03/2008
  • Status: Active Grant
First Claim
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1. A heart monitoring apparatus, comprising:

  • at least one sensing stage connected or connectable to at least one intracardiac electrode configured to pick up electric potentials of a myocardium of a heart'"'"'s ventricle or atrium, said at least one sensing stage being adapted to process electric signals representing a time course of said electric potentials;

    at least one mechanical action detection stage adapted to generate a geometry signal that reflects mechanical action of a heart chamber, said geometry signal having a time course that reflects a change of a heart chamber'"'"'s geometry;

    an evaluation unit coupled with said at least one sensing stage and to said at least one mechanical action detection stage, said evaluation unit adapted to determine a first fiducial point in the time course of said electric potentials and a second fiducial point in the time course of said geometry signal, said first fiducial point and said second fiducial point belonging to a same heart cycle, said evaluation unit further configured to determine a measured time delay between said first and said second fiducial points;

    said evaluation unit being further adapted to repeat said determination of said measured time delay between two fiducial points to thus determine a plurality of measured time delays and to determinea variance of said plurality of measured time delays ora divergence of statistical properties of cycle times that are based on said time course of said electric potentials versus cycle times that are based on said time course that reflect said change of said heart chamber'"'"'s geometry.

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