Matches 251 - 300 out of 380 < 1 2 3 4 5 6 7 8 >
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5365426 Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia  
Monopolar ECG signals are converted into the multichannel spectrum and autocorrelation domains, and different decision variables are identified from the autospectra. Statistically validated...
5357968 Diagnosing and treating subacute myocarditis  
A method for diagnosing subacute myocarditis is performed by electrocardiographically monitoring an ambulatory patient who has unexplainable fatigue and determining the frequency when the T-wave of...
5355891 ECG analyzer  
Apparatus for analyzing ECG signals from a patient in the form of a data stream comprises a data stream monitor to locate for each heart beat a trigger point (26,37,25) having a constant temporal...
5351696 Method and apparatus for intracardiac electrogram morphologic analysis  
A method and apparatus for morphologic analysis of an electrical signal, implementable in an implantable device such as a pacemaker, cardioverter, defibrillator or the like. The morphologic...
5351695 Wrist worn ECG monitor  
A compact, lightweight wrist-worn cardiac data and event monitor having dry skin electrodes integral with the monitor's housing is disclosed. Preferably, the skin electrodes are made of titanium...
5313954 Apparatus for shockwave treatment  
An apparatus for shockwave treatment of a patient, includes a shockwave generator and a detector of a cardiac signal which corresponds to the cardiac action of the patient. During the shockwave...
5309920 Ambulatory electrocardiographic patient monitoring system and method therefor  
An ambulatory patient monitoring system (100) is provided for measuring and storing predetermined diagnostic parameters of a patient. The monitoring system includes a personal type computer (120)...
5301677 Arrhythmia detector using delta modulated turning point morphology of the ECG wave  
An arrhythmia detector includes a delta modulator which digitizes the ECG signal and produces a serial digital signal that represents the input ECG signal. A microprocessor classifies the signal as...
5295484 Apparatus and method for intra-cardiac ablation of arrhythmias  
The present invention employs ultrasonic energy delivered to myocardial tissue at frequencies sufficient to destroy the myocardial tissue implicated in the arrhythmic. More specifically, the...
5291400 System for heart rate variability analysis  
A method and system for heart variability analysis is provided. A computer system generates various statistical and spectral measurements of heart rate variability based on user-specified...
5280792 Method and system for automatically classifying intracardiac electrograms  
The application is directed to a method for automatically classifying intracardiac electrograms, and a system for performing the method. In a further aspect, it concerns an implantable cardioverter...
5273050 ECG analysis system with multiple cassette loader  
An ECG analysis system is provided that automatically scans and classifies in sequence a plurality of long term recorded patient cassette tapes by first identifying and then inserting each tape...
5273049 Detection of cardiac arrhythmias using template matching by signature analysis  
A method and apparatus for detecting cardiac arrhythmias are disclosed. The detecting method and apparatus sense cardiac electrical signals when the heart is functioning in a known cardiac state,...
5271411 Method and apparatus for ECG signal analysis and cardiac arrhythmia detection  
A method and apparatus for arrhythmia detection comprise steps and means for acquiring at least one continuous analog signal produced by an ECG system, producing at least one digital signal based...
5267568 Stress level measuring device  
A stress level measuring instrument compares a base-line pulse value with other pulse values of the subject. The instrument includes a device for calculating the mean pulse frequency, a device for...
5240009 Medical device with morphology discrimination  
A medical device is provided for monitoring waveform complexes of intracardiac electrograms. The intracardiac electrogram is identified by determining, with respect to a waveform peak of the...
5217021 Detection of cardiac arrhythmias using correlation of a cardiac electrical signals and temporal data compression  
A method and apparatus for detecting cardiac arrhythmias in a patient's heart is disclosed. The monitoring method and apparatus sense cardiac electrical signals when the heart is functioning in a...
5215098 Data compression of cardiac electrical signals using scanning correlation and temporal data compression  
A method and apparatus for storing a representation of a cardiac signal by compressing the data using scan correlation and temporal data compression techniques. The method and apparatus sense...
5215099 System and method for predicting cardiac arrhythmia utilizing frequency informatiton derived from multiple segments of the late QRS and the ST portion  
Several hundred digitized ECG waveforms are averaged together (discarding abnormal waveforms) to form an array of digitized values. Then multiple overlapping subsegments are extracted from this...
5211179 System and method for analyzing selected signal components in electrocardiographic signals, particularly late potentials in electrocardiograms  
Disclosed is a system and a method for computer-supported analysis of arrhythmic potentials in ECG signals, particularly those of late potentials. Interference discrimination advantages of...
5201321 Method and apparatus for diagnosing vulnerability to lethal cardiac arrhythmias  
A method and apparatus for diagnosing the vulnerability of a patient's heart to lethal cardiac arrhythmias uses on-line comparison of the beat timing vectors with the stored vectors of a number of...
5197480 System and method for monitoring heart transplant rejection  
A pacemaker system and method for predicting cardiac allograft rejection noninvasively through the analysis of the T-wave amplitudes of evoked heartbeats. A pacemaker suitable for detecting the...
5193550 Method and apparatus for discriminating among normal and pathological tachyarrhythmias  
A method and apparatus for discriminating among the various normal and pathologic tachycardias. In response to the detection of tachycardia, far-field ventricular electrograms sensed using atrial...
5187657 Cardiac analyzer with REM sleep detection  
A compact, cardiac analyzer system provides for monitoring physiological indicators of rapid eye movement (REM) sleep, autonomic fluctuations and ischemia. When any of these "indicators" is...
5181519 Device for detecting abnormal heart muscle electrical activity  
A portable apparatus and method for monitoring heart muscle electrical activity includes a plurality of electrical contacts and a monitoring unit. The contacts receive the electrical signals...
5117833 Bi-spectral filtering of electrocardiogram signals to determine selected QRS potentials  
Method and apparatus for analyzing electrocardiogram signals to ascertain any defects or abnormalities in heart activity. Sensed, orthogonal x, y and z input signals are processed to obtain QRS...
5109862 Method and apparatus for spectral analysis of electrocardiographic signals  
A frequency domain signal processing and analysis method and apparatus displays, plots and makes measurements upon electrocardiographic signals (ECG) recorded from the body surface. Both the...
5092343 Waveform analysis apparatus and method using neural network techniques  
A waveform analysis assembly (10) includes a sensor (12) for detecting physiological electrical and mechanical signals produced by the body. An extraction neural network (22, 22') will learn a...
5092341 Surface ECG frequency analysis system and method based upon spectral turbulence estimation  
Frequency domain ECG signal processing systems and methods plot spectral maps and compute statistical parameters from surface electrocardiographic signals, which plots and parameters reveal...
5090418 Method and apparatus for screening electrocardiographic (ECG) data  
A time saving automatic screening system for detection, measurement, analysis and plotting of electrocardiographic (ECG) signals employing arrhythmia analysis programs on long term ambulatory...
5056527 Apparatus for analyzing vital signals based upon a feature selected from a plurality of vital signal features  
A vital signal measuring apparatus includes histogram forming device to prepare histograms of a plurality of feature values associated with vital signals, causes a feature value selecting device to...
5046504 Method and apparatus for analyzing and interpreting electrocardiograms using spectro-temporal mapping  
Method and apparatus for analyzing ECG signal data for diagnostic purposes by performing an incrementally moving, short window FFT analysis to produce a set of spectral templates representative of...
5042497 Arrhythmia prediction and prevention for implanted devices  
A system for predicting and preventing cardiac arrhythmias for use in combination with an implanted arrhythmia treatment device comprising means for sensing the neural activity of a patient and...
5027824 Method and apparatus for detecting, analyzing and recording cardiac rhythm disturbances  
Apparatus for detecting, analyzing and recording cardiac events includes a patient-wearable monitor detecting cardiac events and cardiac rhythm and processing information indicative of those events...
5020540 Cardiac biopotential analysis system and method  
Disclosed is a cardiac biopotential analysis system and method for detecting and quantifying in a noninvasive manner nonlinear dynamic patterns of depolarization and repolarization on a beat to...
5003983 Cardiac monitoring system  
A cardiac monitor system reads an EKG signal and conditions the EKG waveform in a manner that accentuates the information on ST segment location, within the waveform. ST segment location is used to...
5000189 Method and system for monitoring electrocardiographic signals and detecting a pathological cardiac arrhythmia such as ventricular tachycardia  
A method and system are provided for monitoring electrocardiographic signals and detecting a pathological cardiac arrhythmia, such as ventricular tachycardia wherein the zero crossings of the first...
4998535 Thrombolysis predictive instrument  
An instrument for predicting the benefit of using thrombolytic therapy to treat a patient with a heart condition including a first input port for receiving inputs derived from electrocardiograph...
4989610 Method and system of ECG data review and analysis  
A method and computerized system for ECG data review and analysis are provided. In preferred embodiments, a transformation is performed on beat data and the transformed data are categorized into...
4977899 Heart data monitoring method and apparatus  
Improved ambulatory heart data monitoring and recording apparatus and method are described. The apparatus provides a power partitioning and management circuit that enables the extended, continuous...
4979110 Characterizing the statistical properties of a biological signal  
The statistical properties of a biological signal intermittently obscured by a relatively independent biological process are estimated by noting the time intervals during which the obscuring...
4974598 EKG system and method using statistical analysis of heartbeats and topographic mapping of body surface potentials  
The Heart State Analyzer (HSA) is a system and method in medical non-invasive electrocardiographic (EKG) analysis of human heart beats for the early detection of certain heart diseases in which a...
4960123 Differentiating between arrhythmia and noise in an arrhythmia control system  
A method and apparatus for differentiating between arrhythmia and noise in an antiarrhythmia device. A noise detection criteria is applied to a detected signal so as to detect noise simultaneously...
4951680 Fetal monitoring during labor  
Apparatus for monitoring fetal health during labor detects the occurrence of a fetal ECG in digital signals derived from electrodes on a fetus using a matched filter routine to detect a QRS...
4920489 Apparatus and method for solid state storage of episodic signals  
A method and apparatus for digitally storing episodic signals, such as, electrocardiogram signals is disclosed. In a preferred embodiment, the apparatus includes, for each signal channel, an input...
4919144 Defibrillator ECG interpreter  
A defibrillator electrocardiogram (ECG) interpreter for indicating whether to treat a patient with a defibrillator. A sequence of digitized samples from a patient's ECG is periodically tested to...
4905707 Method for recognizing rejection of transplanted hearts  
A method is disclosed for monitoring the body reaction against a heart transplant. When a heart is newly transplanted, electrocardiac signals from the transplanted heart are detected. The analog...
4896675 Apparatus for monitoring degree of mental tension  
An apparatus for monitoring mental tension comprises a first measuring unit for measuring a periodic wave related to a contraction activity of the heart of a person to be monitored; a detecting...
4884345 Adjustable template for pacemaker ECG analysis and method of use  
An adjustable template device for pacemaker ECG analysis is similar to a slide rule with a transparent window portion which can be laid over an ECG trace to aid in its analysis. A frame for the...
4860762 Dual channel resolver for real time arrythmia analysis  
Apparatus for classifying beats in EKG signals from two sets of electrodes in which the respective signals are applied to different channels and the classification is derived from a simultaneous...
Matches 251 - 300 out of 380 < 1 2 3 4 5 6 7 8 >