System and method for classification of cardiac activity using multiple sensing locations
OwnerWilliam B. Rottenberg, Scott Mathisinventors
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Abstract
In a cardiac system with a multi-electrode lead, the intrinsic activity at each electrode is sensed and used to generate a wavefront profile. The timing, relative and absolute duration of events within the profile and the location of the first electrode at which an event is sensed during a cardiac cycle are used to generate a signal indicative of the cardiac condition of the patient.
Claims15
An implantable cardiac device for applying therapy to the heart of a patient, comprising:
- a lead having a proximal end and a distal end with a plurality of electrodes, said lead being adapted to be implanted with said plurality of electrodes being positioned at various locations within the heart;
- a sense detection circuit adapted to detect a plurality of sense signals from the respective electrodes;
- and
- a control circuit adapted to analyze a timing of said sense signals and to generate an indication signal indicative of a condition of the heart based on said timing.
An implantable cardiac device comprising:
- a plurality of at least three electrodes adapted to be disposed at different locations within the heart;
- a sensor circuit adapted to sense intrinsic activity through said electrodes and to generate corresponding sense signals;
- and
- a control circuit adapted to receive said sense signals and to detect from said sense signals a wavefront propagating through the heart tissues.
In an implantable cardiac device including a plurality of at least three electrodes constructed and arranged to be positioned at various locations within the cardiac chambers, and a control circuit connected to said electrodes, a method of diagnosing a condition of the heart, comprising the steps of:
- sensing an intrinsic event at each of a plurality of electrodes;
- generating a wavefront profile corresponding to said events;
- and
- analyzing said wavefront profile to determine a cardiac condition.
Dependencies are inferred from the claim text.