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Match Document Document Title
7295873 Anti-tachycardia pacing method and apparatus for multi-chamber pacing  
Improved methods and devices perform tachycardia detection and anti-tachycardia pacing (ATP) to convert a tachycardia (e.g., VT or AT) to normal sinus rhythm. According to one embodiment, an...
7289847 Implantable cardiac device and method of treating atrial fibrillation  
An apparatus and method of treating atrial fibrillation (AF) are provided. The apparatus includes means for detecting AF in a heart of a patient, means for classifying the AF as one of a plurality...
7283865 Device and method for determining a cardiac condition using a complex signal formed from a detected cardiac signal  
In a device and a method for determining a cardiac condition from a detected cardiac signal, an input signal is formed from the detected cardiac signal and supplied to an analysis unit. The...
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...
7277756 Risk of death indicator  
A system comprising an implantable medical device (IMD). The IMD comprises a ventricular heart signal sensing circuit to provide a ventricular heart signal, at least one sensor operable to provide...
7277755 Subcutaneous cardiac stimulation device providing anti-tachycardia pacing therapy and method  
An implantable subcutaneous cardiac device includes at least two subcutaneous electrodes adapted for placement external to a heart beneath the skin of a patient. The device further includes an...
7277750 Method and apparatus for anti-tachycardia pacing and defibrillation  
An implantable cardioverter/defibrillator (ICD) includes an Anti-Tachycardia Pacing Before Charge (ATP-BC) mode according to which one or more high-voltage capacitors for storing defibrillation...
7272438 Mode switching heart stimulation apparatus and method  
In a heart stimulation device a mode of operation is switched in response to detection of atrial tachyarrhythmia such as atrial fibrillation. The stimulation device may initially operate in a...
7257443 Method and apparatus for detecting oscillations in cardiac rhythm with electrogram signals  
A cardiac rhythm management device is configured to detect oscillations in cardiac rhythm by comparing electrogram signals during successive heart beats. Upon detection of electrical alternans, the...
7251526 Active implantable medical device of the defibrillator, cardiovertor and/or antitachycardia pacemaker type, having a high maximum frequency for antibradycardia stimulation  
An active implantable medical device of the defibrillator, cardiovertor and/or antitachycardia pacemaker type having a high maximum frequency for antibradycardia stimulation. This device provides...
7248922 Timing refractory period for cardiac resynchronization pacing  
A device and method for cardiac rhythm management in which a heart chamber is paced in accordance with a pacing mode that employs sense signals from the opposite chamber. A sensing refractory...
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...
7245965 Implantable cardiac device providing mode switching and automatic atrial sensitivity control and method  
An implantable cardiac stimulation device, mode switchable between atrial tracking and atrial non-tracking pacing modes includes a threshold control for controlling atrial sensing threshold. The...
7245967 Parasympathetic nerve stimulation for termination of supraventricular arrhythmias  
Terminating supraventricular arrhythmias through parasympathetic nerve stimulation. The method comprises detecting a supraventricular arrhythmia, stimulating a parasympathetic nerve and determining...
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...
7233821 Method and apparatus for evaluating ventricular performance during isovolumic contraction  
A method of evaluating ventricular performance of a heart employing sensors to measure a ventricular dimension signal and deriving indices of ventricular performance therefrom. Premature Shortening...
7233824 Secure and efficacious therapy delivery for an extra-systolic stimulation pacing engine  
An extra-systolic stimulation (ESS) therapy addresses cardiac dysfunction including heart failure. ESS therapy employs atrial and/or ventricular extra-systoles via pacing-level stimulation to a...
7231248 Resynchronization method and apparatus based on intrinsic atrial rate  
A method and system for setting the operating parameters of a cardiac rhythm management device in which a plurality of parameter optimization algorithms are available. A measured feature of an...
7228176 Systems, devices, and methods for tachyarrhythmia discrimination or therapy decisions  
This document discusses, among other things, systems, devices, and methods for detecting or classifying tachyarrhythmias or making a therapy decision. In one example, a rate-dependent threshold is...
7228173 Cardiac tachyarrhythmia therapy selection based on patient response information  
Cardiac treatment methods and devices providing templates representative of past tachyarrythmia events, each template associated with a therapy. A cardiac waveform is detected, and if it...
7212859 Dual-chamber implantable cardiac stimulation system and device with selectable arrhythmia termination electrode configurations and method  
An implantable cardiac stimulation system delivers arrhythmia termination pulses to the ventricles and the atria of a heart. The system includes an implantable cardiac stimulation device, including...
7212860 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,...
7206633 Device and method to discriminate between supraventricular tachycardias and ventricular arrhythmias  
A method discriminates between ventricular arrhythmia and supraventricular tachycardia by detecting an earliest arriving electrical signal following anti-tachycardia pacing. An implantable cardiac...
7203538 Pacing therapy for extending atrial refractory period  
A device and method are presented for prolonging the atrial effective refractory period with pacing therapy. Such refractory period prolongation renders the atrial tissue less susceptible to the...
7200438 High frequency atrial burst pacing for improved ventricular rate control during atrial arrhythmias  
A method and device for delivering cardiac stimulation that includes a first electrode, positioned within a first chamber of a heart, sensing cardiac signals associated with the first chamber and...
7191002 Anti-tachycardia pacing methods and devices  
An improved method and device for performing anti-tachycardia pacing (ATP) to convert a ventricular tachycardia (VT) to normal sinus rhythm. Pairs of pacing/sensing electrodes are placed in or on...
7187972 Bi-ventricular pacing in the face of rapidly conducting atrial tachyarrhythmia  
Methods and devices (e.g., pacemakers or ICDs with pacemaker functions) are provided for maintaining a high percentage of bi-ventricular pacing after a pacemaker switches from an atrial tracking...
7184831 Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device  
A method and device for delivering a therapy in response to detection of abnormal cardiac rhythms that includes delivering a first therapy during a first delivery period, substantially simultaneous...
7184816 Cardiac stimulating and detecting device, system and method for identifying far field signals  
In an implantable heart stimulating device, system and method, a control circuit has first and second circuits for sensing and pacing. The first circuit can be connected to a first electrode member...
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...
7181277 Methods and systems for reducing the likelihood of arrhythmia onset  
Various embodiments are directed to providing systems and methods that can reduce the likelihood of arrhythmia onset by effecting a treatment, responsive to a detected premature event, that mimics...
7181281 ICD using MEMS for optimal therapy  
An exemplary method includes detecting movement of an in vivo oscillator using one or more in vivo sensors, receiving information from at least one of the one or more sensors, and deciding whether...
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...
7177685 Classifying tachyarrhythmia using time interval between ventricular depolarization and mitral valve closure  
A cardiac rhythm management system measures a time interval between a first fiducial marker indicative of a ventricular depolarization (e.g., a Q-wave, an R-wave, etc.) and a second fiducial marker...
7177682 Highly specific technique for discriminating atrial fibrillation from atrial flutter  
A cardiac rhythm management system including a highly sensitive technique for discriminating AF from AFL. An electrode disposed in or about a heart senses a cardiac signal. A controller through a...
7174209 Algorithm for discrimination of 1:1 tachycardias  
An algorithm for detection of tachycardias and for discriminating between supraventricular tachycardia (SVT) and ventricular tachycardia (VT) when a 1:1 tachycardia condition is present that can be...
7162300 Synchronized atrial anti-tachy pacing system and method  
A system and method for an implantable cardiac pacing device provide for delivery of anti-tachycardia pacing of the atrium upon detection of atrial tachycardia combined with automatic...
7162299 ICD with VF prevention  
A cardiac stimulation device includes a sensing unit for monitoring the electrical activity of a heart and a controller configured to predict the onset of an arrhythmia of the heart. The controller...
7149577 Apparatus and method using ATP return cycle length for arrhythmia discrimination  
An apparatus for discriminating between cardiac events that includes an input circuit receiving signals indicative of the cardiac events, a first output circuit generating pulses in response to the...
7146214 Anti-tachycardia pacing based on multi-site electrograms  
In one embodiment, a method includes sensing depolarizations of a heart at a plurality of different locations, and determining a sequence of the sensed depolarizations. The method may further...
7142911 Method and apparatus for monitoring drug effects on cardiac electrical signals using an implantable cardiac stimulation device  
An implantable cardiac stimulation device, such as a pacemaker or Implantable Cardioverter Defibrillator, is configured to automatically monitor the effects of antiarrhythmic drugs on cardiac...
7142917 Heart treatment equipment and method for preventing fatal arrhythmia  
In order to avoid a sudden cardiac death by a fatal arrhythmia, various living body information for generating a signal which shows a level of an autonomic tone is detected by a sensor or a VT/VF...
7139604 Cardiac stimulation system and method for discriminating sinus from non-sinus events  
A cardiac stimulation device and method discriminates sinus events from non-sinus events and provide a uniquely prescribed response upon detection of a specific event.
7139607 Arrhythmia discrimination  
Various exemplary methods include altering conduction and/or operation of the AV node and/or AV bundle to help classify arrhythmias.
7136700 System and method for delivering post-atrial arrhythmia therapy  
A system and method for applying atrial therapy to a human heart using a defibrillator includes detecting an atrial arrhythmia and delivering electrical energy to at least one atrium in response to...
7133721 Adjustable overdrive pacing  
An exemplary method includes providing an overdrive pacing rate, based at least in part on the overdrive pacing rate, determining an incidence limit for incidence of intrinsic atrial activity...
7133720 Cardiac rhythm management system synchronizing atrial shock to ventricular depolarization based on length of sensing refractory  
A cardiac rhythm management system synchronizes the delivery of an atrial defibrillation shock to a ventricular depolarization concluding a present RR interval since the occurrence of the last...
7130681 Use of accelerometer signal to augment ventricular arrhythmia detection  
A system and method for detecting and discriminating atrial arrhythmias based on mechanical signals of cardiac wall motion and electrical signals of cardiac depolarizations. A mechanical event rate...
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...
7120490 Cardiac rhythm management system with atrial shock timing optimization  
A cardiac rhythm management system includes atrial shock timing optimization. Because an atrial tachyarrhythmia, such as atrial fibrillation typically causes significant variability in the...
Matches 51 - 100 out of 390 < 1 2 3 4 5 6 7 8 >