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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:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8712509 Virtual physician acute myocardial infarction detection system and method Apr. 29, 2014
8706201 Apparatus and method for analysis of high frequency QRS complexes Apr. 22, 2014
8682422 Acute ischemia detection based on parameter value range analysis Mar. 25, 2014
8676304 Ischemia monitoring system for patients having periods of left bundle branch block Mar. 18, 2014
8655434 Physician's programmer with ST-segment histogram display capability Feb. 18, 2014
8639318 Advanced patient management with composite parameter indices Jan. 28, 2014
8628478 Microphone for remote health sensing Jan. 14, 2014
8626280 Methods and devices for accurately classifying cardiac activity Jan. 7, 2014
8620415 Analysis of electrocardiogram signals Dec. 31, 2013
8620414 Detection of T-wave alternans phase reversal for arrhythmia prediction and sudden cardiac death risk stratification Dec. 31, 2013
8600485 Method of ventricular repolarization analysis Dec. 3, 2013
8600489 Methods and devices for accurately classifying cardiac activity Dec. 3, 2013
8600490 Two-dimensional refractory period Dec. 3, 2013
8600504 Physiologic demand driven pacing Dec. 3, 2013
8594775 Techniques for determining morphological stability of cardiac cycles Nov. 26, 2013
8588896 Methods and devices for accurately classifying cardiac activity Nov. 19, 2013
8588895 Robust rate calculation in an implantable cardiac stimulus or monitoring device Nov. 19, 2013
8588894 Determination of site of origin for a natural electrical pulse in a living body Nov. 19, 2013
8571644 Method, computer readable medium, and system for analyzing ECG morphology and time series Oct. 29, 2013
8571645 System and method for evaluating cardiovascular performance in real time and characterized by conversion of surface potential into multi-channels Oct. 29, 2013
8565865 Methods for the determination of T-shock vulnerable window from far-field electrograms in implantable cardioverter defibrillators Oct. 22, 2013
8554314 Device and method to detect the severity of ischemia and heart attack risk Oct. 8, 2013
8538510 Apparatus and method for identifying myocardial ischemia using analysis of high frequency QRS potentials Sep. 17, 2013
8521267 Methods and systems for trending ST segment changes over time Aug. 27, 2013
8491481 System and method for measuring the instantaneous period of a quasi-periodic signal Jul. 23, 2013
8467862 Systems and methods related to ST segment monitoring by an implantable medical device Jun. 18, 2013
8457727 Monitoring variation patterns in physiological parameters associated with myocardial instability Jun. 4, 2013
8442624 System for cardiac medical condition detection May. 14, 2013
8437841 Living body inspection apparatus, and relevant method and program product May. 7, 2013
8433398 Signal analysis system for heart condition determination Apr. 30, 2013
8428703 Acute ischemia detection based on parameter value range analysis Apr. 23, 2013
8417326 RR interval monitoring method and blood pressure cuff utilizing same Apr. 9, 2013
8406862 Ischemia detection based on combination of parameters associated with different sensors Mar. 26, 2013
8401627 Methods and systems for monitoring heart instabilities Mar. 19, 2013
8396551 Systems and methods for optimizing ventricular pacing delays during atrial fibrillation Mar. 12, 2013
8391962 Cardiac function circadian variation analysis system and method Mar. 5, 2013
8369938 Rhythm discrimination enhancement--chamber of tachy origination Feb. 5, 2013
8359091 Apparatus and method for detecting and filtering artifacts by analysis of a cardiac vectogram Jan. 22, 2013
8346351 Methods for quantifying QT-RR Jan. 1, 2013
8346359 Systems and methods for optimizing ventricular pacing delays during atrial fibrillation Jan. 1, 2013
8332018 Method and arrangement to predict at least one system event and a corresponding computer program and a corresponding machine-readable storage medium Dec. 11, 2012
8326407 Long-term monitoring for discrimination of different heart rhythms Dec. 4, 2012
8321001 Implantable P-wave dispersion detector Nov. 27, 2012
8315698 Method and apparatus for automatic analysis of T-wave alternans Nov. 20, 2012
8311618 Method and apparatus for quantitative assessment of cardiac electrical events Nov. 13, 2012
8287459 Interpolating left ventricular pressures Oct. 16, 2012
8273029 Pressure recovery index to assess cardiac function Sep. 25, 2012
8265739 Systems and methods for distinguishing cardiac ischemia from systemic influences on IEGM morphology using an implantable medical device Sep. 11, 2012
8249715 Implantable medical device configured as a pedometer Aug. 21, 2012
8241221 Systems and methods for use with an implantable medical device for detecting stroke based on electrocardiac signals Aug. 14, 2012

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