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Class Information
Number: 600/517
Name: Surgery > Diagnostic testing > Cardiovascular > Heart > Detecting heartbeat electric signal > Detecting arrhythmia > Vertical variation of pqrst signal waveform (e.g., amplitude of qrs complex, etc.) detected
Description: Subject matter including means for detecting a variation in the height of a particular portion of the PQRST waveform which represents the heartbeat electric signal, height being measured from the base line between positive and negative portions of the waveform.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620449 |
Differentiating ischemic from non-ischemic T-wave inversion |
Nov. 17, 2009 |
| 7610086 |
System and method for detecting cardiac ischemia in real-time using a pattern classifier implemented within an implanted medical device |
Oct. 27, 2009 |
| 7567836 |
ECG signal power vector detection of ischemia or infarction |
Jul. 28, 2009 |
| 7558623 |
Means and method for the detection of cardiac events |
Jul. 7, 2009 |
| 7539535 |
Real-time, high frequency QRS electrocardiograph with reduced amplitude zone detection |
May. 26, 2009 |
| 7524287 |
System and method for distinguishing between hypoglycemia and hyperglycemia using an implantable medical device |
Apr. 28, 2009 |
| 7509159 |
Method and apparatus for detecting cardiac repolarization abnormality |
Mar. 24, 2009 |
| 7484129 |
Physiologic event monitoring device having robust internal control |
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 |
| 7460900 |
Method and apparatus for detecting ischemia using changes in QRS morphology |
Dec. 2, 2008 |
| 7412283 |
Method and system for processing electrocardial signals |
Aug. 12, 2008 |
| 7386340 |
System for the diagnosis and monitoring of coronary artery disease, acute coronary syndromes, cardiomyopathy and other cardiac conditions |
Jun. 10, 2008 |
| 7379771 |
Conduction based automatic therapy selection |
May. 27, 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 |
| 7289845 |
Curvature based method for selecting features from an electrophysiologic signal for purpose of complex identification and classification |
Oct. 30, 2007 |
| 7274959 |
System and method for detecting cardiac ischemia using an implantable medical device |
Sep. 25, 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 |
| 7236819 |
Separation of a subcutaneous cardiac signal from a plurality of composite signals |
Jun. 26, 2007 |
| 7225015 |
System and method for detecting cardiac ischemia based on T-waves using an implantable medical device |
May. 29, 2007 |
| 7218960 |
System and method for detecting cardiac ischemia based on T-waves using an implantable medical device |
May. 15, 2007 |
| 7197358 |
Identifying infants at risk for sudden infant death syndrome |
Mar. 27, 2007 |
| 7194299 |
Differentiating ischemic from non-ischemic T-wave inversion |
Mar. 20, 2007 |
| 7184816 |
Cardiac stimulating and detecting device, system and method for identifying far field signals |
Feb. 27, 2007 |
| 7184815 |
System and method for selection of morphology templates |
Feb. 27, 2007 |
| 7181269 |
Implantable device that diagnoses ischemia and myocardial infarction and method |
Feb. 20, 2007 |
| 7174204 |
Methods for quantifying the morphology and amplitude of cardiac action potential alternans |
Feb. 6, 2007 |
| 7123953 |
Method and system for evaluating arrhythmia risk with QT-RR interval data sets |
Oct. 17, 2006 |
| 7085599 |
Characterization of supraventricular rhythm using collected cardiac beats |
Aug. 1, 2006 |
| 7072708 |
Differentiating acute myocardial infarction from other ECG abnormalities |
Jul. 4, 2006 |
| 7072709 |
Method and apparatus for determining alternans data of an ECG signal |
Jul. 4, 2006 |
| 7069069 |
Implantable cardiac device for and method of monitoring progression or regression of heart disease by quantifying morphological features |
Jun. 27, 2006 |
| 7027867 |
Implantable cardiac device having a system for detecting T wave alternan patterns and method |
Apr. 11, 2006 |
| 6990372 |
Programmable signal analysis device for detecting neurological signals in an implantable device |
Jan. 24, 2006 |
| 6947789 |
Method for detecting, sizing and locating old myocardial infarct |
Sep. 20, 2005 |
| 6942622 |
Method for monitoring autonomic tone |
Sep. 13, 2005 |
| 6915158 |
Cardiac stimulating device with morphology sensitive detection and method for automatically creating a morphology template |
Jul. 5, 2005 |
| 6915156 |
Intracardiac detection and control of repolarization alternans |
Jul. 5, 2005 |
| 6850796 |
Method and apparatus to optimally measure cardiac depolarization/repolarization instability |
Feb. 1, 2005 |
| 6735460 |
Biomagnetic field measuring method and apparatus |
May. 11, 2004 |
| 6721592 |
Automatic electrogram measurement |
Apr. 13, 2004 |
| 6684100 |
Curvature based method for selecting features from an electrophysiologic signals for purpose of complex identification and classification |
Jan. 27, 2004 |
| 6668189 |
Method and system for measuring T-wave alternans by alignment of alternating median beats to a cubic spline |
Dec. 23, 2003 |
| 6615075 |
QRST subtraction using an adaptive template for analysis of TU wave obscured atrial activity |
Sep. 2, 2003 |
| 6539245 |
Biomagnetic field measuring method and apparatus |
Mar. 25, 2003 |
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