Patent application number | Description | Published |
20100076519 | SYSTEM AND METHOD FOR REGULATING BLOOD PRESSURE AND ELECTROLYTE BALANCE - The present invention is an apparatus and method for controlling blood pressure by stimulating the cardiac afferent sympathetic nerves. The invention may be implemented in a medical device having a pressure sensor for sensing blood pressure, an electrode for providing electrical signals to the cardiac afferent sympathetic nerves, and a controller for providing signals to the electrode as a function of blood pressure signals received from the pressure sensor. | 03-25-2010 |
20100114254 | SUBCLAVIAN ANSAE STIMULATION - Techniques for improving cardiac performance by applying stimulation to the subclavian ansae nerve of a patient are disclosed. In one example, a method comprises identifying a human patient as having a cardiac condition, and delivering stimulation therapy to a subclavian ansae nerve of a human patient with a stimulation electrode. | 05-06-2010 |
20100241184 | POST LONG PAUSE OVERDRIVE PACING IN RESPONSE TO ATRIAL TACHARRHYTHMIA EPISODE - This disclosure provides for methods and apparatus for preventing an early recurring atrial fibrillation and atrial flutter (AF) episode (herein “ERAF”). Some aspects of the foregoing involve commencing atrial overdrive pacing therapy delivery at an overdrive pacing rate upon detection of one of: (i) an AF episode and (ii) a relatively long pause between successive sensed P-waves during an AF episode. The AF episode typically has a cycle length interval of between about 100 ms and 300 ms, and the relatively long pause has a duration of between about 40 ms and 100 ms longer than the cycle length of the AF episode. Atrial overdrive pacing is delivered for a relatively short period of time after successful termination of the AF episode. Subsequently, the atrial pacing rate is rapidly decreased until either normal sinus rhythm or a lower programmed pacing rate is reached. | 09-23-2010 |
20110022107 | AUTOMATIC ENABLING OF POST LONG PAUSE OVERDRIVE PACING - A method and apparatus for controlling an atrial overdrive pacing therapy include detecting an atrial arrhythmia episode and determining if the atrial arrhythmia episode is an early recurring episode. Delivery of the atrial overdrive pacing therapy is enabled in response to the early recurring episode and commences upon detection of an atrial arrhythmia episode or a long pause. | 01-27-2011 |
20110024186 | LEAD APPARATUS - A lead including one or more electrodes (e.g., electrodes, such as those having circuitry associated therewith). | 02-03-2011 |
20110105926 | HEART RATE VARIABILITY DISTINCTION - Systems, methods and devices for monitoring, analyzing, and processing a patient's heart rate signal for HRV characteristics are described herein. A first heart rate signal is acquired. The first heart rate signal includes at least one indication of an interval duration of cardiac activity. At least one accelerating portion and at least one decelerating portion of the first heart rate signal are identified. An average heart rate signal is acquired. The accelerating portion or the decelerating portion of the first heart rate signal is replaced with the average heart rate signal to produce a second heart rate signal. A frequency spectrum of the second heart rate signal may be obtained and utilized to predict or detect one or more autonomic conditions of a patient. Therapy may initiated or titrated in response to prediction or detection of the autonomic condition. | 05-05-2011 |
20110106195 | ARRHYTHMIA PREDICTION BASED ON HEART RATE TURBULENCE - In general, the disclosure describes techniques for predicting the occurrence of an arrhythmia based on an indication of heart rate turbulence. An example method comprises sensing a parameter indicative of heart rate turbulence, measuring heart rate turbulence based on the sensed parameter, and predicting an occurrence of an arrhythmia based on the measured heart rate turbulence. | 05-05-2011 |
20110270332 | THERAPY USING PERTURBATION AND EFFECT OF PHYSIOLOGICAL SYSTEMS - Methods for treating a patient and further to devices for performing such treatment, e.g., methods and devices to perturb at least one physiological system and deliver therapy to the patient based on the effects of such perturbation. For example, a method for using an implantable medical device is disclosed that involves delivering electrical stimuli to an efferent nerve associated with the selected organ. Afferent electrical activity is monitored during delivery of electrical stimuli to the efferent nerve, the monitored afferent electrical activity includes an indirect component of a compound action potential (CAP). A status of the selected organ is assessed based upon the indirect component. A determination is made as to whether to deliver therapy to the selected organ in response to assessing the status of the selected organ. | 11-03-2011 |
20110270342 | THERAPY USING PERTURBATION AND EFFECT OF PHYSIOLOGICAL SYSTEMS - Methods for treating a patient and further to devices for performing such treatment, e.g., methods and devices to perturb at least one physiological system and deliver therapy to the patient based on the effects of such perturbation. For example, a method for using an implantable medical device is disclosed that involves delivering electrical stimuli to an efferent nerve associated with the selected organ. Afferent electrical activity is monitored during delivery of electrical stimuli to the efferent nerve, the monitored afferent electrical activity includes an indirect component of a compound action potential (CAP). A status of the selected organ is assessed based upon the indirect component. A determination is made as to whether to deliver therapy to the selected organ in response to assessing the status of the selected organ. | 11-03-2011 |
20110270343 | THERAPY USING PERTURBATION AND EFFECT OF PHYSIOLOGICAL SYSTEMS - Methods for treating a patient and further to devices for performing such treatment, e.g., methods and devices to perturb at least one physiological system and deliver therapy to the patient based on the effects of such perturbation. For example, a method for using an implantable medical device is disclosed that involves a method for using an implantable medical device delivering electrical stimuli to an afferent nerve associated with the selected organ. The efferent electrical activity is monitored in an efferent nerve responsive to delivering electrical stimuli to the afferent nerve, the monitored efferent electrical activity includes an indirect component of a compound action potential (CAP). A status of the selected organ is assessed based upon the indirect component. | 11-03-2011 |
20120029587 | NERVE SIGNAL DIFFERENTIATION IN CARDIAC THERAPY - Methods of nerve signal differentiation, methods of delivering therapy using such nerve signal differentiation, and to systems and devices for performing such methods. Nerve signal differentiation may include locating two electrodes proximate nerve tissue and differentiating between efferent and afferent components of nerve signals monitored using the two electrodes. | 02-02-2012 |
20120029600 | NERVE SIGNAL DIFFERENTIATION IN CARDIAC THERAPY - Methods of nerve signal differentiation, methods of delivering therapy using such nerve signal differentiation, and to systems and devices for performing such methods. Nerve signal differentiation may include locating two electrodes proximate nerve tissue and differentiating between efferent and afferent components of nerve signals monitored using the two electrodes. | 02-02-2012 |
20120185009 | VAGAL STIMULATION - The disclosure herein relates generally to methods for treating heart conditions using vagal stimulation, and further to systems and devices for performing such treatment. Such methods may include monitoring physiological parameters of a patient, detecting cardiac conditions, and delivering vagal stimulation (e.g., electrical stimulation to the vagus nerve or neurons having parasympathetic function) to the patient to treat the detected cardiac conditions. | 07-19-2012 |
20120185010 | VAGAL STIMULATION - The disclosure herein relates generally to methods for treating heart conditions using vagal stimulation, and further to systems and devices for performing such treatment. Such methods may include monitoring physiological parameters of a patient, detecting cardiac conditions, and delivering vagal stimulation (e.g., electrical stimulation to the vagus nerve or neurons having parasympathetic function) to the patient to treat the detected cardiac conditions. | 07-19-2012 |
20120185011 | VAGAL STIMULATION - The disclosure herein relates generally to methods for treating heart conditions using vagal stimulation, and further to systems and devices for performing such treatment. Such methods may include monitoring physiological parameters of a patient, detecting cardiac conditions, and delivering vagal stimulation (e.g., electrical stimulation to the vagus nerve or neurons having parasympathetic function) to the patient to treat the detected cardiac conditions. | 07-19-2012 |
20120239100 | ATRIAL NERVE STIMULATION WITH VENTRICULAR PACING - A method and medical device for delivering an atrial pacing pulse to an atrial chamber to generate an evoked atrial depolarization, delivering a stimulation pulse to an atrioventricular node during a stimulation window to increase a PR interval of the heart, the stimulation window having a start time corresponding to the delivered atrial pacing pulse so that the stimulation pulse is delivered during a refractory period corresponding to the evoked atrial depolarization, and delivering a ventricular pacing pulse to a first ventricular chamber during the increased PR interval to cause a contraction of the first ventricular chamber to occur prior to a contraction of a second ventricular chamber to increase dyssynchrony between the contraction of the first ventricular chamber and the contraction of the second ventricular chamber. | 09-20-2012 |
20120239105 | ATRIAL NERVE STIMULATION WITH VENTRICULAR PACING - An implantable medical device senses atrial depolarizations having associated refractory periods thereafter and delivers electrical stimulation pulses during the associated refractory periods to stimulate the atrioventricular (AV) node to cause a prolonged conduction time of an atrial depolarization to a ventricular chamber. The device delivers a pacing pulse to a first ventricular chamber during the prolonged conduction time to cause a contraction and associated refractory period of the first ventricular chamber, the first ventricular chamber contraction occurring earlier than a contraction of a second ventricular chamber. | 09-20-2012 |
20120290030 | AV NODAL STIMULATION DURING ATRIAL TACHYARRHYTHMIA TO PREVENT INAPPROPRIATE THERAPY DELIVERY - The disclosure describes techniques for delivering electrical stimulation to decrease the ventricular rate response during an atrial tachyarrhythmia, such as atrial fibrillation. AV nodal stimulation is employed during an atrial tachyarrhythmia episode with rapid ventricular conduction to distinguish ventricular tachyarrhythmia from supraventricular tachycardia and thereby prevent delivering inappropriate therapy to a patient. | 11-15-2012 |
20130030490 | SELECTION OF SPINAL CORD STIMULATION ELECTRODES FOR USE IN CARDIAC THERAPY - Methods, systems, and/or devices for selecting spinal cord stimulation (SCS) electrode array configurations to provide effective cardiac therapy. Physiological parameters related to the heart may be monitored and analyzed during the delivery of SCS using various SCS electrode array configurations to determine an effect SCS electrode array configuration. | 01-31-2013 |
20140114163 | NERVE SIGNAL DIFFERENTIATION IN CARDIAC THERAPY - Methods of nerve signal differentiation, methods of delivering therapy using such nerve signal differentiation, and to systems and devices for performing such methods. Nerve signal differentiation may include locating two electrodes proximate nerve tissue and differentiating between efferent and afferent components of nerve signals monitored using the two electrodes. | 04-24-2014 |
20140142650 | NERVE SIGNAL DIFFERENTIATION IN CARDIAC THERAPY - Methods of nerve signal differentiation, methods of delivering therapy using such nerve signal differentiation, and to systems and devices for performing such methods. Nerve signal differentiation may include locating two electrodes proximate nerve tissue and differentiating between efferent and afferent components of nerve signals monitored using the two electrodes. | 05-22-2014 |
20140316486 | VAGAL STIMULATION - The disclosure herein relates generally to methods for treating heart conditions using vagal stimulation, and further to systems and devices for performing such treatment. Such methods may include monitoring physiological parameters of a patient, detecting cardiac conditions, and delivering vagal stimulation (e.g., electrical stimulation to the vagus nerve or neurons having parasympathetic function) to the patient to treat the detected cardiac conditions. | 10-23-2014 |