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Class Information
Number: 600/516
Name: Surgery > Diagnostic testing > Cardiovascular > Heart > Detecting heartbeat electric signal > Detecting arrhythmia > Variation in duration of segment of pqrst signal waveform (e.g., qrs complex, etc.) detected
Description: Subject matter including means for detecting a variation in the time which lapses during the generation of a particular portion of the PQRST waveform representing the heartbeat electric signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7593764 |
System and method of serial comparison for detection of long QT syndrome (LQTS) |
Sep. 22, 2009 |
| 7580740 |
Atrial tachyarrhythmia detection using selected atrial intervals |
Aug. 25, 2009 |
| 7567836 |
ECG signal power vector detection of ischemia or infarction |
Jul. 28, 2009 |
| 7546160 |
Reduction of interaction with tachyarrhythmia detection by negative offset pacing |
Jun. 9, 2009 |
| 7515956 |
Template based AV/VA interval comparison for the discrimination of cardiac arrhythmias |
Apr. 7, 2009 |
| 7502644 |
System and method for distinguishing among cardiac ischemia, hypoglycemia and hyperglycemia using an implantable medical device |
Mar. 10, 2009 |
| 7483741 |
Reduction of interaction with tachyarrhythmia detection by negative offset pacing |
Jan. 27, 2009 |
| 7480529 |
Method and apparatus for cardiac arrhythmia classification using sample entropy |
Jan. 20, 2009 |
| 7477936 |
System and a method for analyzing ECG curvature |
Jan. 13, 2009 |
| 7463926 |
Automatic signal amplitude measurement system in the setting of abnormal rhythms |
Dec. 9, 2008 |
| 7460902 |
Monitoring of atrial activation |
Dec. 2, 2008 |
| 7400920 |
Detection of renal failure by cardiac implantable medical device |
Jul. 15, 2008 |
| 7376458 |
Method for defining signal templates in implantable cardiac devices |
May. 20, 2008 |
| 7361146 |
System and method for detecting abnormal respiration via respiratory parameters derived from intracardiac electrogram signals |
Apr. 22, 2008 |
| 7328066 |
Implantable cardiac stimulation device, system and method that identifies and prevents impending arrhythmias of the atria |
Feb. 5, 2008 |
| 7295874 |
Intermittent stress augmentation pacing for cardioprotective effect |
Nov. 13, 2007 |
| 7283864 |
Method and apparatus for identifying patients with wide QRS complexes |
Oct. 16, 2007 |
| 7280869 |
Arrhythmia termination detection based on beat pattern |
Oct. 9, 2007 |
| 7257443 |
Method and apparatus for detecting oscillations in cardiac rhythm with electrogram signals |
Aug. 14, 2007 |
| 7254440 |
Implantable ischemia and myocardial infarction monitor and method |
Aug. 7, 2007 |
| 7225014 |
Anti-arrhythmia therapy based on spatial and/or temporal information |
May. 29, 2007 |
| 7225015 |
System and method for detecting cardiac ischemia based on T-waves using an implantable medical device |
May. 29, 2007 |
| 7221976 |
Analysis of the alternans cycle to cycle and/or the variability of the ventricular repolarization wave in an ECG signal |
May. 22, 2007 |
| 7184815 |
System and method for selection of morphology templates |
Feb. 27, 2007 |
| 7177685 |
Classifying tachyarrhythmia using time interval between ventricular depolarization and mitral valve closure |
Feb. 13, 2007 |
| 7174204 |
Methods for quantifying the morphology and amplitude of cardiac action potential alternans |
Feb. 6, 2007 |
| 7171260 |
Ectopic beat detection algorithm for implantable cardiac rhythm management device |
Jan. 30, 2007 |
| 7123953 |
Method and system for evaluating arrhythmia risk with QT-RR interval data sets |
Oct. 17, 2006 |
| 7117031 |
Long term cardiac monitor |
Oct. 3, 2006 |
| 7076289 |
Methods and apparatus for discriminating polymorphic tachyarrhythmias from monomorphic tachyarrhythmias facilitating detection of fibrillation |
Jul. 11, 2006 |
| 7069069 |
Implantable cardiac device for and method of monitoring progression or regression of heart disease by quantifying morphological features |
Jun. 27, 2006 |
| 7047067 |
Apparatus, methods, and computer program products for evaluating a risk of cardiac arrhythmias from restitution properties |
May. 16, 2006 |
| 6999812 |
Arteriosclerosis detection system |
Feb. 14, 2006 |
| 6965686 |
Device for four-dimensional representation of a structural variation, in particular of the course of a disease |
Nov. 15, 2005 |
| 6945934 |
System and method for determining a reference baseline record for use in automated patient care |
Sep. 20, 2005 |
| 6915156 |
Intracardiac detection and control of repolarization alternans |
Jul. 5, 2005 |
| 6850795 |
Method of noninvasively determining a patient's susceptibility to arrhythmia |
Feb. 1, 2005 |
| 6847840 |
System and method for statistical analysis of QT interval as a function of changes in RR interval |
Jan. 25, 2005 |
| 6823213 |
Implantable medical device and method using integrated T-wave alternans analyzer |
Nov. 23, 2004 |
| 6804555 |
Multi-site ventricular pacing system measuring QRS duration |
Oct. 12, 2004 |
| 6735466 |
Analytical signal method for analysis of T-wave alternans |
May. 11, 2004 |
| 6735460 |
Biomagnetic field measuring method and apparatus |
May. 11, 2004 |
| 6728572 |
System and method for classifying cardiac complexes |
Apr. 27, 2004 |
| 6658286 |
Atrial and ventricular tachyarrhythmia detection system and method |
Dec. 2, 2003 |
| 6615083 |
Implantable medical device system with sensor for hemodynamic stability and method of use |
Sep. 2, 2003 |
| 6577894 |
Quantitative method and apparatus for measuring QT intervals from ambulatory electrocardiographic recordings |
Jun. 10, 2003 |
| 6564091 |
Method and memory means for storing cardiac rhythm information |
May. 13, 2003 |
| 6539245 |
Biomagnetic field measuring method and apparatus |
Mar. 25, 2003 |
| 6480733 |
Method for monitoring heart failure |
Nov. 12, 2002 |
| 6453192 |
Detection of ventricular ectopic beats using ventricular electrogram |
Sep. 17, 2002 |
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