HEART MONITORING APPARATUS
First Claim
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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Accused Products
Abstract
Heart monitoring apparatus with sensing stage connectable to intracardiac electrode picking up electric potentials and adapted to process electric signals representing a time course of said potentials, a mechanical action detection stage adapted to generate a geometry signal having a time course reflecting heart chamber'"'"'s geometry change, an evaluation unit connected to sensing stage and impedance measuring stage and adapted to determine a first and second fiducial point in the time course of said potentials and geometry signal, respectively, both fiducial points belonging to same heart cycle, and to determine a measured time delay between said fiducial points. Evaluation unit adapted to repeat said determined time delay to determine plurality of measured time delays and variance thereof or divergence of the statistical properties of cycle times based on said time course of said electric potentials versus cycle times based on said time course reflecting a change of a heart chamber'"'"'s geometry.
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Citations
12 Claims
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1. A heart monitoring apparatus, comprising:
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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 determine a variance of said plurality of measured time delays or a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for monitoring a heart'"'"'s health state comprising:
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acquiring a signal representing a time course of electric potentials; acquiring a geometry signal having a time course reflecting a change of a heart chamber'"'"'s geometry; determining a first fiducial point in the time course of said electric potentials; determining a second fiducial point in the time course of said geometry signal, said first fiducial point and said second fiducial point belonging to the same heart cycle; determining a measured time delay between said first and said second fiducial point; repeating said determining said measured time delay between two fiducial points to thus determine a plurality of measured time delays; and determining a variance of said plurality of measured time delays or a 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 reflecting said change of said heart chamber'"'"'s geometry. - View Dependent Claims (12)
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Specification