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7630765 Safety pacing in multi-site CRM devices  
Safety pacing in multi-site cardiac rhythm management (CRM) devices is provided. According to various method embodiments, a first cardiac signal from a first cardiac region and a second cardiac...
7603172 System and method of using regression models to estimate vulnerable periods for heart stimulation parameters  
Heart stimulator that provides for timing a premature stimulation pulse for anti-tachycardia pacing outside the vulnerable phase of a ventricle, to terminate stable ventricular tachycardia while...
7580747 Inducing premature atrial contractions for the purpose of monitoring autonomic tone, risk of sudden cardiac death and ischemic events  
Implantable systems, and methods for use therein, perform at least one of a cardiac assessment and an autonomic assessment. Premature atrial contractions (PACs) are induced to thereby cause...
7548782 Method for reversal of myocardial remodeling with electrical stimulation  
A method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed region of the...
7546160 Reduction of interaction with tachyarrhythmia detection by negative offset pacing  
A device and method is disclosed for improving tachyarrhythmia detection when the ventricles are resynchronized by delivering paces to both ventricles separated by a specified negative offset...
7546161 Methods for loss of capture and fusion avoidance in biventricular pacing therapy  
An exemplary method includes delivering biventricular pacing therapy using one or more timing parameters, detecting loss of capture, deciding if fusion exists without adjusting the one or more...
7532928 Atrial defibrillator  
An atrial defibrillator has a stimulation pulse generator to generate pacing pulses, a sensing stage for sensing intrinsic ventricular events, (an R-wave having an amplitude). It also includes a...
7532929 Adaptive ventricular rate smoothing during atrial fibrillation  
An implantable cardiac device is provided for adaptive ventricular rate smoothing during atrial fibrillation (AF). When AF is detected, the operation of the device is switched to non-atrial...
7529580 Detection of renal failure by cardiac implantable medical device  
Morphological features within electrical cardiac signals are tracked and feature changes are monitored to detect renal failure. The morphological feature may be an interval between corresponding...
7526338 Implantable cardiac device for monitoring diastolic heart failure and method of operation and use thereof  
An implantable cardiac device is used to measure one or more parameters relating to cardiac activity of a patient's heart, from which diastolic heart failure (“DHF”) may be monitored and/or...
7499744 Statistical method for assessing autonomic balance  
A computationally efficient method for assessing a subject's autonomic balance by measurement of heart rate variability is disclosed which is particularly suitable for implementation by an...
7433736 Atrial capture detection via atrial-ventricular conduction  
Techniques for increasing the accuracy of detection of atrial capture may involve determining a ventricular sensing window for ventricular senses associated with atrial test pulses based on...
7424324 Identifying heart failure patients suitable for resynchronization therapy using QRS complex width from an intracardiac electrogram  
Methods and systems are disclosed for determining whether a patient is a responder to cardiac resynchronization therapy. The beginning and ending of the intrinsic ventricular depolarization are...
7353061 Biventricular stimulation device with shortened inter-ventricular delay  
A biventricular cardiac stimulation device has a pulse generator for delivering stimulation pulses at least to the ventricles of a patient's heart. An evoked response detector has independent first...
7346393 Implantable cardiac rhythm management system having multiple therapy modalities  
A cardiac rhythm management system for providing a plurality of therapy modalities. For example, the system may include a cardiac resynchronization therapy module for providing cardiac...
7336997 Heart treatment equipment and heart treatment method  
Heart treatment equipment and a heart treatment method directed to prevention of a fatal arrhythmia by detecting a physical exercise or a mental stress by using a sensor and thereafter controlling...
7328066 Implantable cardiac stimulation device, system and method that identifies and prevents impending arrhythmias of the atria  
An implantable cardiac stimulation device includes a system that identifies and prevents the occurrence of impending atrial arrhythmias. A sensing circuit senses atrial activity of a patient's...
7313439 Method and apparatus for predicting arrhythmias using diurnal heart rate  
A method of predicting an arrhythmia, such as ventricular tachycardia, for example, in a medical device using a quantitative measure in order to allow assessment of patient risk and to enable...
7308307 Implantable single-chamber atrial pacing device providing active ventricular far field sensing and rate limit  
A maximum pacing rate is dynamically established during single-chamber atrial pacing of a heart by a rate control system within a single-chamber or dual-chamber cardiac stimulation device which...
7280869 Arrhythmia termination detection based on beat pattern  
In general, the invention is directed to an apparatus and method for determining whether an identified atrial tachyarrhythmia episode has terminated. The invention enables determination of whether...
7254440 Implantable ischemia and myocardial infarction monitor and method  
An implantable ischemia detecting devices generates a plurality of electrograms for analysis. A processor integrates the ST segment and T wave of each electrogram and normalizes the resulting...
7254442 Apparatus and method for “LEPARS” interval-based fusion pacing  
Efficient provision of hemodynamic benefits and therapy for patients suffering from intraventricular conduction delays or conduction blockage. By effectively measuring conduction delay or block...
7248925 System and method for determining optimal atrioventricular delay based on intrinsic conduction delays  
A system and method for estimating optimal atrioventricular delay values for use in pacing the ventricles. Both the intrinsic inter-atrial conduction delay and the intrinsic atrioventricular...
7245968 Implantable cardiac device providing rapid pacing T wave alternan pattern detection and method  
An implantable cardiac device that delivers electrical therapy to a patient's heart determines if a T wave alternan pattern of the patient's heart exists. The device includes a sensing circuit that...
7242978 Method and apparatus for generating a template for arrhythmia detection and electrogram morphology classification  
An implantable medical device and associated method for automatically generating morphology templates during fast cardiac rhythms, confirming a provisional template as a confirmed template, and...
7225014 Anti-arrhythmia therapy based on spatial and/or temporal information  
Receiving an action potential signal associated with a myocardial contraction sensed at a myocardial site, receiving an action potential signal associated with the myocardial contraction sensed at...
7221976 Analysis of the alternans cycle to cycle and/or the variability of the ventricular repolarization wave in an ECG signal  
A device for the analysis of the alternans cycle to cycle and/or the variability of the ventricular repolarization wave in an ECG signal. This device extracts from an ECG signal, for each cardiac...
7215998 Synchronous pacemaker with AV interval optimization  
A system and method for use in an implanted cardiac pacing device, whereby an optimal AV delay is determined at or near lower rate (pacing) limit (LRL) by determining measuring the variance, or...
7215996 Bi-ventricular heart stimulating device, system and method  
In an implantable heart stimulating device, system and method, electrical stimulation pulses are delivered to first and second ventricles of a heart with a variable time interval therebetween, and...
7206634 Method and apparatus for optimizing cardiac pumping performance  
A cardiac rhythm and function management device configured to automatically adjust stimulation parameters used in delivering cardiac resynchronization therapy. Mechanical contraction intervals are...
7181269 Implantable device that diagnoses ischemia and myocardial infarction and method  
An implantable device detects and discriminates between ischemia and myocardial infarction. The device includes a plurality of electrodes that provide a plurality of cardiac activity sensing...
7181282 Implantable cardiac device with PVC density monitoring, and therapy control and method  
An implantable cardiac device provides a learned premature ventricular contraction density function responsive to detected premature ventricular contractions. A current premature ventricular...
7181284 Apparatus and methods of energy efficient, atrial-based Bi-ventricular fusion-pacing  
The bi-ventricular implantable pulse generator described and depicted herein enables hemodynamic efficiencies for patients suffering from intraventricular conduction delays or conduction blockage....
7177683 History-dependent pacing interval determination for antitachycardia pacing  
A method and device for delivering anti-tachycardia pacing pulses that may be used to treat episodes of atrial or ventricular tachycardia. Episodes of atrial or ventricular tachycardia can occur...
7177687 Implantable cardiac stimulator wherein AV-delay adjustment is limited during dynamic atrial overdrive  
A cardiac pacemaker has an algorithm for dynamic overdrive of a patient's atria in order to suppress atrial tachyarrhythmias. The device further has circuitry for adapting the AV-delay during...
7171260 Ectopic beat detection algorithm for implantable cardiac rhythm management device  
A method implemented in a dual chamber cardiac rhythm management device for identifying non-sinus ventricular depolarizations following an atrial event. The PR interval for a sensed ventricular...
7158829 Method and apparatus for improving specificity of atrial tachycardia detection techniques in dual-unipolar or dual-bipolar implantable cardiac stimulation systems  
Techniques are provided for allowing Automatic Mode Switching (AMS) to be exploited within dual unipolar systems employing Combipolar sensing. Relative refractory windows are opened within both the...
7142918 Apparatus and method for pacing mode switching during atrial tachyarrhythmias  
A method for operating a cardiac pacemaker in which the mode of operation of the pacemaker is altered in response to detecting an episode of atrial tachycardia. In accordance with the invention,...
7142922 Method and apparatus for predicting acute response to cardiac resynchronization therapy at a given stimulation site  
Response to cardiac resynchronization therapy is predicted for a given stimulation site so that an atrioventricular delay of an implantable device administering cardiac resynchronization therapy...
7130690 Atrial capture management during atrial and ventricular pacing  
In an atrial pacing system, the A-PACE pulse energy, defined by the pulse width and pulse amplitude, sufficient to reliably capture the atrium without being wasteful of battery energy is...
7130687 Implantable medical device and method for delivering therapy for sleep-disordered breathing  
An implantable medical device delivers augmentation therapy to intervene in a pattern of sleep-disordered breathing. Augmentation therapy includes the delivery of electrical stimulation to cardiac...
7130686 Selection of preventative arrhythmia therapy based on patient specific histogram data  
Methods and systems for providing cardiac therapy are described. In some embodiments, methods and systems are configured to deliver atrial tachyarrhythmia therapy by confirming that a patient is...
7127292 Addressing recurrent atrial fibrillation  
An implantable medical device is directed to techniques for applying overdrive pacing to one or both atria following termination of an AF episode, to prevent a recurrent AF episode. The implantable...
7107093 Use of activation and recovery times and dispersions to monitor heart failure status and arrhythmia risk  
A system and method for monitoring electrical dispersion of the heart is provided including an implantable medical device and associated electrode system for sensing cardiac signals from a...
7103410 Apparatus and method for reversal of myocardial remodeling with electrical stimulation  
An apparatus and method for reversing ventricular remodeling with electro-stimulatory therapy. A ventricle is paced by delivering one or more stimulatory pulses in a manner such that a stressed...
7089049 Removing polarization artifacts from electrical activity signals to detect cardiac evoked response  
A medical device is directed to techniques for removing polarization artifacts from electrical activity signals in order to detect presence of an evoked response. More specifically, a medical...
7043301 Implantable cardiac stimulation system providing high output far-field pacing and method  
An implantable cardiac stimulation device provides therapy for hearts having severe conduction abnormalities such as hearts suffering from congestive heart failure. The implantable cardiac...
7031771 Dual chamber method and apparatus for diagnosis and treatment of arrhythmias  
A method and apparatus are provided for improving the detection of certain cardiac rhythms by combining dual chamber interval-related detection methods with electrogram morphology analysis. A...
7027867 Implantable cardiac device having a system for detecting T wave alternan patterns and method  
A system and method for use in an implantable cardiac device that delivers electrical therapy to a patient's heart determines if a T wave alternan pattern of the patient's heart exists. The system...
7027865 Pacemaker with vasovagal syncope detection and therapy  
A method and apparatus for cardiac pacing are provided in which pacing pulses are delivered at an increased rate in response to a detected intrinsic heart rate drop and a special rate drop response...
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