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| Number | Title | Issue Date |
| 8170669 | Method and apparatus for concurrent atrio-ventricular anti-tachycardia pacing An implantable medical device delivers anti-tachyarrhythmia therapies including anti-tachycardia pacing (ATP). If a detected tachyarrhythmia is classified as a type suitable for treatment using ATP, the implantable medical device selects one of an atrial ATP (A-ATP)... | 05/01/2012 |
| 8140156 | Heart sound sensing to reduce inappropriate tachyarrhythmia therapy Techniques for detecting heart sounds to reduce inappropriate tachyarrhythmia therapy are described. In some examples, a medical device determines that a cardiac rhythm of the patient is treatable with a therapy, such as a defibrillation pulse, based on a cardiac el... | 03/20/2012 |
| 8140157 | Medical device for detecting ischemia and a method for such a device In a method and medical device for detecting an ischemic episode and to determine a location of ischemia in a heart of a patient, an impedance measuring circuit measures the impedances in the tissue between electrodes of at least one electrode configuration accordin... | 03/20/2012 |
| 8126552 | Measurement of cardiac information for CRT optimziation in the presence of conduction dysfunction or atrial arrhythmia An exemplary method includes delivering a cardiac pacing therapy that includes an atrio-ventricular delay and an interventricular delay, providing a paced propagation delay associated with delivery of a stimulus to a ventricle, delivering a stimulus to the ventricle... | 02/28/2012 |
| 8121687 | Cardiac motion characterization by strain measurement Methods for evaluating motion of a cardiac tissue location, e.g., heart wall, are provided. In the subject methods, timing of a signal obtain from a strain gauge stably associated with the tissue location of interest is employed to evaluate movement of the cardiac t... | 02/21/2012 |
| 8116868 | Implantable device with cardiac event audio playback Cardiac monitoring and stimulation methods and systems provide audio playback of cardiac events and transthoracic monitoring and therapy. A medical system includes a housing and electrodes configured for sensing cardiac electrical activity. Another sensor may be con... | 02/14/2012 |
| 8106012 | Methods for predicting effectiveness of apheresis therapy for heart failure The present invention provides methods for predicting an effectiveness of apheresis therapy on patients with dilated cardiomyopathy, which include adding, for example, sera or such collected from patients to 18-day-old chicken fertile eggs and measuring the left ven... | 01/31/2012 |
| 8103345 | Cardiac pacing using adjustable atrio-ventricular delays A pacing system for providing optimal hemodynamic cardiac function for parameters such as contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays f... | 01/24/2012 |
| 8090442 | Apparatus and method for spatially and temporally distributing cardiac electrical stimulation A cardiac electro-stimulatory device and method for operating same in which stimulation pulses are distributed among a plurality of electrodes fixed at different sites of the myocardium in order to reduce myocardial hypertrophy brought about by repeated pacing at a ... | 01/03/2012 |
| 8090443 | Monitoring HF exacerbation and cardiac resynchronization therapy performance An exemplary method includes delivering a cardiac resynchronization therapy using an atrio-ventricular delay parameter and an interventricular delay parameter, measuring an atrio-ventricular conduction delay, measuring an interventricular conduction delay, assessing... | 01/03/2012 |
| 8073539 | Heart treatment device Provided is a heart treatment device (1) including a heartbeat detecting unit (2) that detects heartbeats by using an electrode disposed at a heart (A), a pulse transformer (5) having a primary winding (5a) and a secondary winding ... | 12/06/2011 |
| 8068909 | Measurement of cardiac performance with movement sensors and related methods Embodiments of the invention are related to implantable devices including movement sensors and related methods for measuring cardiac performance, amongst other things. In an embodiment, the invention includes an implantable electrical stimulation lead. The electrica... | 11/29/2011 |
| 8065001 | Use of implantable body position and body movement sensors Implantable systems, and methods for use therewith, are provided for using an implantable sensor for detecting body position and/or body movement, and using what is learned therefrom to improve accuracy of an implantable sensor that is sensitive to at least one of b... | 11/22/2011 |
| 8065002 | Pacemaker-patient hemodynamic assessment/adjustment methodology A method for gathering, creating and utilizing signal-processed ECG and acoustic signals for assessing, via presenting a highly intuitive, multi-component, common-time-base, real-time output display of selected (1) timing, (2) relative timing, and (3) other signific... | 11/22/2011 |
| 8060203 | Method and apparatus for determining variation over time of a medical parameter of a human being An apparatus for determining variation over time of a medical parameter of a human being obtained from a sensed signal has a sensor implantable in the human being for sensing the signal. A comparator compares at least one characteristic property, derived from the se... | 11/15/2011 |
| 8050760 | System and method for evaluating mechanical cardiac dyssynchrony based on multiple impedance vectors using an implantable medical device Techniques are provided for evaluating mechanical dyssynchrony within the heart of patient in which a pacemaker, implantable cardioverter-defibrillator (ICD) or other medical device is implanted. In one example, a set of cardiogenic impedance signals are detected al... | 11/01/2011 |
| 8050759 | Subcutaneous ICD with separate cardiac rhythm sensor A cardiac rhythm sensor positioned on or close to the heart senses electrical or mechanical activity and transmits a cardiac rhythm signal wirelessly to a subcutaneous ICD. Arrhythmia detection and delivery of therapy are performed by the SubQ ICD based upon the car... | 11/01/2011 |
| 8010195 | Cardiac pacing system by substituting native biological regulatory function The present invention provides a cardiac pacing system based on biological activities, comprising: a) at least one nerve activity sensing means which senses nerve activity of a cardiac sympathetic nerve and/or a vagal nerve, and outputs a plurality of input nerve ac... | 08/30/2011 |
| 8000789 | Capacitive interface circuit for low power sensor system This disclosure describes a capacitive interface circuit for a low power system. The capacitive interface circuit is configured to achieve very low noise sensing of capacitance-based transducers, such as a micro-electro-mechanical system (MEMS)-based sensor, with hi... | 08/16/2011 |
| 7986994 | Method and apparatus for detecting change in intrathoracic electrical impedance A method and apparatus for detection of changes in impedance a patient that includes generating measured impedances, generating an adaptive baseline trend of the measured impedances corresponding to a first time period, generating a short term trend of the measured ... | 07/26/2011 |
| 7979123 | Intermittent stress augmentation pacing for cardioprotective effect A device and method for delivering electrical stimulation to the heart in a manner which provides a protective effect against subsequent ischemia is disclosed. The protective effect is produced by configuring a cardiac pacing device to intermittently switch from a n... | 07/12/2011 |
| 7974694 | Method and apparatus for quantification of cardiac wall motion asynchrony A phase analysis technique provides for quantification of regional wall motion asynchrony from endocardial border contours generated from two-dimensional echocardiographic ventricular images. The technique produces results including a degree of radial ventricular as... | 07/05/2011 |
| 7974693 | Techniques for applying, configuring, and coordinating nerve fiber stimulation Apparatus is provided including an implantable sensor, adapted to sense an electrical parameter of a heart of a subject, and a first control unit, adapted to apply pulses to the heart responsively to the sensed parameter, the pulses selected from the list consisting... | 07/05/2011 |
| 7970469 | Closed loop programming for individual adjustment of electro-mechanical synchrony An implantable therapy system including implantable stimulation and control components. The implantable components operate under a set of variable parameters that can be adjusted for improved performance for an individual patient. The implantable components are adap... | 06/28/2011 |
| 7957801 | Dynamic pacing interval extension for detection of intrinsic ventricular activity Methods and devices for identification of intrinsic ventricular activity occurring within a ventricular signal. Ventricular signal morphology is analyzed to determine if the signal contains intrinsic ventricular activity while delivering pacing pulses separated by n... | 06/07/2011 |
| 7953485 | Therapy control based on the rate of change of intracardiac impedance A system comprising a medical device that includes an impedance measurement circuit adapted to be coupled to implantable electrodes to obtain an intracardiac impedance signal between electrodes, a therapy circuit operable to deliver a therapy to a subject, and a con... | 05/31/2011 |
| 7953484 | Method and apparatus for optimization of cardiac resynchronization therapy using heart sounds A cardiac rhythm management system provides for assessment of cardiac mechanical dyssynchrony based on heart sound morphology and optimization of pacing parameters based on the effect of pacing on the cardiac mechanical dyssynchrony assessment. A degree of cardiac m... | 05/31/2011 |
| 7953483 | Detection of ventricular tachycardia in an active implantable medical device having an AAI operating mode An active implantable medical device, such as a pacemaker, cardioverter and/ or defibrillator of AAI or AAI/DDD type, with detection of ventricular tachycardiae. This device senses spontaneous ventricular and atrial events; delivers atrial pacing pulses; and is able... | 05/31/2011 |
| 7949394 | Using implanted sensors for feedback control of implanted medical devices A system and method for administering a therapeutic treatment to the heart includes a pressure sensor positioned in the pulmonary artery, an implantable medical device located remotely from the sensor, and communication means for communicating pressure data from the... | 05/24/2011 |
| 7941218 | Apparatus and methods of optimizing atrioventricular pacing delay intervals Methods and apparatus for optimizing an atrioventricular (AV) pacing delay interval based upon ECG-based optimization is calculated as a linear function of P-wave duration, sensed PR (intrinsic) interval, sensed or paced QRS duration and heart rate. Since the relati... | 05/10/2011 |
| 7937149 | Method and apparatus for detecting change in physiologic parameters A method and apparatus for detection of changes in physiologic parameters of a patient that includes generating measured physiologic parameters, generating an adaptive baseline trend of the measured physiologic parameters corresponding to a first time period, genera... | 05/03/2011 |
| 7908005 | Medical system for monitoring and localization of electrode leads in the heart A medical system has an implantable heart stimulator with sensing and stimulating pairs of electrodes, with an electric field through the heart being generated by the respective pairs by the application of alternating voltages at a preset frequency to the respective... | 03/15/2011 |
| 7908004 | Considering cardiac ischemia in electrode selection Exemplary systems, devices, and methods for considering cardiac ischemia in electrode selection are described. One method determines whether an electrode of a multiple-electrode lead is proximate a region of cardiac ischemia or infarct. The method also paces through... | 03/15/2011 |
| 7904157 | Self limited rate response Rate responsive pacing is limited in an atrial based pacing mode by the AV interval in order to avoid or minimize ventricular encroachment of atrial pacing. The AV or VA interval is used to permit rate responsiveness; modulate rate responsiveness or to determine a d... | 03/08/2011 |
| 7894900 | Device and method for monitoring cardiac pacing rate A device for monitoring cardiac pacing rate having a measuring unit for receiving an electrical signal representing the patient's cardiac demand, and a computing unit for determining the myocardial energy balance by calculating energy consumed by the myocardium for ... | 02/22/2011 |
| 7881791 | Apparatus and methods of optimizing ventricle-to-ventricular pacing delay intervals Provided herewith are methods and apparatus for optimizing ventricle-to-ventricle (V-V) pacing delay intervals based upon ECG-based optimization calculated as a linear function of P-wave duration sensed PR (intrinsic) interval sensed (or paced) QRS duration and hear... | 02/01/2011 |
| 7881790 | Reducing data acquisition, power and processing for photoplethysmography and other applications Hemodynamic signals, such as photoplethysmography (PPG) signals, pressure signals, and impedance signals, are sampled once per cyclical body cycle to reduce the amount of data, processing and/or power required to analyze the hemodynamic signals. ... | 02/01/2011 |
| 7869876 | Method and apparatus for monitoring and optimizing atrial function A method for use in an implantable medical device, comprising: sensing a signal corresponding to ventricular wall acceleration; and determining a metric of atrial function using the ventricular wall acceleration signal. The method includes sensing the ventricular wa... | 01/11/2011 |
| 7860567 | Sensor for edema A sensor is located within the body of a subject, such as for capturing pacing pulses transmitted as part of cardiac therapy from an implanted cardiac function management device. Counted pulses may be used to derive the onset of pulmonary edema within the body throu... | 12/28/2010 |
| 7856269 | System and method for determining phsyiologic events during pacing mode operation An implantable medical device operates according to a ventricular pacing protocol (VPP) that precludes ventricular pacing in any cardiac cycle where a sensed ventricular event has occurred in the preceding cycle. Improved ventricular sensing, detection and classific... | 12/21/2010 |
