Implantable cardioverter/defibrillator and method employing cross-phase spectrum analysis for arrhythmia detection
AssigneeTelectronics Pacing Systems, Inc.
InventorsRichard Saumarez, Anthony Murphy
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Abstract
A method and apparatus for detecting and reverting pathological heart rhythms of a patient are disclosed. A plurality of electrical heart rhythm signals of the patient are sensed at two different locations within the heart. The cross-phase spectra of the sensed heart rhythm signals for each heartbeat are calculated and such heart rhythms are classified based upon the information contained in the cross-phase spectra. Appropriate therapy is then delivered to the patient's heart to revert those of the heart rhythms that are classified as pathological.
Claims17
A method of detecting and reverting pathological heart rhythms of a patient, comprising the steps of:
- sensing each of a plurality of electrical heart rhythm signals of the patient at two different locations;
- calculating cross-phase spectra of sensed heart rhythm signals;
- classifying the heart rhythms based upon information contained in said cross-phase spectra;
- and,
- delivering appropriate therapy to the patient's heart to revert heart rhythms classified as pathological.
Apparatus for detecting and reverting pathological heart rhythms of a patient, comprising:
- means for sensing each of a plurality of electrical heart rhythm signals of the patient at two different locations;
- means for calculating cross-phase spectra of the sensed heart rhythm signals;
- means for classifying heart rhythms based upon information contained in said cross-phase spectra;
- and,
- means for delivering appropriate therapy to the patient's heart to revert heart rhythms classified as pathological.
Apparatus according to cliam 15, wherein said apparatus includes two endocardial leads, and wherein each of said two paris of bipolar sensing electrodes includes two electrodes positioned on a distal portion of a corresponding one of said endocardial leads which is other than the endocardial lead that carries the two electrodes of the other of said two pairs of bipolar sensing electrodes.
Dependencies are inferred from the claim text.