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7616993 |
Heart stimulator using a Bezier function to define AV-delay values
A heart stimulator provides for a more appropriate yet simple setting of the AV-delay. The heart stimulator comprises a stimulation pulse generator adapted to generate electric stimulation pulses...
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7610087 |
Implantable cardioverter defibrillator with automatic switching to a pre-set pacing mode following delivery of a shock
An implantable cardiac stimulator, such as a cardioverter defibrillator, is operable in an autocapture mode. Following the delivery of a defibrillation or cardioversion shock, the stimulator...
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7593774 |
Cardiac pacemaker
Pacemaker ( 10 ) comprises a control unit being adapted to automatically carry out a search for a capture threshold level of cardiac tissue. Available pulse strength values are tested in an...
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7593771 |
Post-shock management of implantable cardiac device features
Systems and methods of managing features or functions of an implantable cardiac device involve forming a baseline evoked response template prior to delivery of defibrillation therapy to a patient's...
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7590447 |
Pacing system analyzer having three sensing and pacing channels
A pacing system analyzer (PSA) having three or more individually controllable sensing and pacing channels provides for testing and measurement during an operation for implanting a pacemaker having...
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7587243 |
System and method for verifying capture and/or event sensing during manual threshold evaluations of an implantable cardiac stimulation device
A system verifies the occurrence of a cardiac event during a manual evaluation of a pacing and/or sensing parameter of an implantable cardiac stimulation device. The system comprises a template...
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7587240 |
Atrial capture verification
Methods and systems for classifying cardiac responses to pacing stimulation and/or preventing retrograde cardiac conduction are described. Following delivery of a pacing pulse to an atrium of the...
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7583998 |
Multi-chamber cardiac capture detection using cross chamber sensing
Methods and systems involve multi-chamber cardiac capture detection utilizing sensing during a cross-chamber refractory period. First and second pacing pulses are delivered to first and second...
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7574260 |
Adaptive windowing for cardiac waveform discrimination
Cardiac devices and methods provide adaptation of detection windows used to determine a cardiac response to pacing. Adapting a detection window involves sensing a cardiac signal indicative of a...
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7574259 |
Capture threshold and lead condition analysis
An exemplary method includes performing a capture threshold assessment using a bipolar electrode configuration, deciding if capture occurred for a maximum energy value of the capture threshold...
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7567840 |
Lead condition assessment for an implantable medical device
A method, system, and apparatus for performing a lead condition assessment and/or a lead orientation determination associated with an implantable medical device (IMD). A first impedance is...
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7561918 |
Autocapture in a neurostimulator
A method (and associated apparatus) of providing electrical neurostimulation therapy to a patient using an implanted neurostimulator comprises (a) delivering an electrical stimulation to a nerve...
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7561914 |
Method of continuous capture verification in cardiac resynchronization devices
In bi-ventricular pacing devices (including CRT devices) analysis of myocardial electrogram signals in one ventricle (e.g., a left ventricle, or “LV”) can be used to infer capture or...
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7551962 |
Implantable medical device with voice responding and recording capacity
An implantable medical device such as a cardiac pacemaker or implantable cardioverter/defibrillator with the capability of receiving communications in the form of speech spoken by the patient. An...
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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...
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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...
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7532930 |
Cardiac pacemaker
Certain embodiments of the present invention disclose an electrostimulator, in particular an atrial cardiac pacemaker, comprising electrode connections which are connected to a stimulation unit for...
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7526335 |
Communications system for an implantable device and a drug dispenser
A system for monitoring drug dispensation and drug effects on physiological signals or implantable medical device (IMD) performance is provided. The system includes a drug dispenser adapted for...
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7515961 |
Method and apparatus for dynamically monitoring, detecting and diagnosing lead conditions
The present invention provides diverse methods and apparatus for in vivo monitoring, detecting and/or predicting potential failure modes or deleterious trends of chronically implanted medical...
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7512441 |
Autocapture pacing/sensing configuration
A cardiac electrical stimulation system that enhances the ability of the system to automatically detect whether an electrical stimulus results in heart capture or contraction. The cardiac...
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7509170 |
Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes
Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed for automatic capture...
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7499751 |
Cardiac signal template generation using waveform clustering
Cardiac devices and methods using cardiac waveform clustering for template generation are described. A method of characterizing a cardiac response involves delivering pacing pulses to heart, the...
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7496403 |
Apparatus and method for testing an implantable medical device and sensing parameter settings
In an apparatus and a method for use in setting a sensing parameter of an implantable medical device (IMD) of a patient, cardiac data corresponding to a cardiac episode experienced by the patient...
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7483745 |
Adjustment of the atrial sensitivity in an active implantable medical device such as cardiac pacemaker
An active implantable medical device, such as a double chamber pacemaker or defibrillator or cardiovertor, having an improved adjustment of atrial sensitivity and of atrial stimulation energy. This...
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7474922 |
Multi chamber capture detection
The invention relates to a pacing system, in particular an implantable pacemaker for pacing multiple chambers of the heart and sensing signals from the myocardium of multiple chambers of the heart...
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7471983 |
Pacing output determination based on selected capture threshold values
Adjusting the pacing energy involves performing a plurality of capture threshold tests, each capture threshold test measuring a capture threshold of the heart. One or more measured captured...
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7469161 |
Systems and methods for monitoring and managing power consumption of an implantable medical device
In one embodiment, an external programming device is operable to determine and graphically display power consumption of an implantable medical device (“IMD”). In accordance with this particular...
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7463931 |
Electrical stimulation of tissue for therapeutic and diagnostic purposes
Electrobiological stimulation is carried out transcranially by applying high frequency squarewave bursts exhibiting no d.c. term across the cranial region. Such stimulation is commenced employing...
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7463926 |
Automatic signal amplitude measurement system in the setting of abnormal rhythms
A system for automatically evaluating the sensing and detection of physiological processes by an implantable medical device, such as an implantable cardiac stimulation device. The system includes...
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7457666 |
Retrograde atrial sensing for identifying sub-threshold atrial pacing
Methods and systems for delivering a pacing pulse to an atrium during a cardiac cycle. A retrograde P-wave may be identified during the cardiac cycle, indicative of sub-threshold atrial pacing....
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7454249 |
Early warning for lead insulation failure
An exemplary implantable device includes a microcontroller programmed to control delivery of cardiac therapy, a connector capable of making an electrical connection to an insulated conductor...
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7450990 |
Stimulation device with stimulation outcome monitoring
A device for electrostimulation of body tissue through a stimulation electrode, in which a stimulation outcome is detected, at least after delivery of a stimulation pulse, on the basis of detecting...
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7440804 |
System and method for measuring ventricular evoked response using an implantable medical device
Techniques are provided for measuring ventricular evoked response within the heart of a patient during atrial fibrillation. An intrinsic ventricular depolarization (i.e. a QRS complex) is sensed...
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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...
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7412287 |
Automatic sensing vector selection for morphology-based capture verification
A system and method for verifying capture of the heart by one or more pacing pulses using an electrogram morphology-based technique. Capture is determined by comparing an evoked response...
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7400924 |
System and method for capture management
An implantable medical device (IMD) includes both evoked response and algorithmic based threshold testing methodologies. The leads used with the IMD are evaluated to determine whether they are high...
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7400923 |
Multi-chamber ventricular automatic capture method and apparatus for minimizing true and blanking period induced ventricular undersensing
An implantable cardiac stimulation device and associated method perform a true or blanking period ventricular undersensing detection algorithm in response to ventricular loss of capture not...
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7392088 |
Capture detection for multi-chamber pacing
Multi-chamber pacing may result in capture of one chamber, capture of multiple chambers, fusion, or non-capture. Approaches for detecting various capture conditions during multi-chamber pacing are...
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7392087 |
Method and apparatus for adjusting the sensing threshold of a cardiac rhythm management device
A method and apparatus for automatically adjusting the sensing threshold of cardiac rhythm management devices. The invention is particularly suited for implementation in devices such as implantable...
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7389138 |
Electrode placement determination for subcutaneous cardiac monitoring and therapy
Methods and devices of cardiac electrode placement involve locating electrodes on a thorax of a patient. Surface pacing levels are determined relative to a pacing limit. Surface electrode locations...
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7386345 |
Apparatus and method for temporary treatment of acute heart failure decompensation
A system for providing temporary therapy, such as cardiac resynchronization therapy, to a patient suffering a decompensation event. The system can include a device having an external module for...
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7363081 |
System and method for providing preventive overdrive pacing and antitachycardia pacing using an implantable cardiac stimulation device
Techniques for enabling both preventive overdrive pacing and antitachycardia pacing (ATP) within an implantable device are provided. The device gains the benefits of overdrive pacing for preventing...
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7363078 |
Intracardiac polarization signal stabilization
Polarization signals, which represent voltages measured at a pacemaker electrode, are not constant and may drift. Polarization signal drift, which often precedes undesirable pace polarization...
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7349738 |
Detecting atrial evoked response
A pulse is delivered to the atrium using an electrode configuration that includes at least a pulse cathode electrode. Cardiac activity in the atrium is sensed using a unipolar electrode...
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7340303 |
Evoked response sensing for ischemia detection
A cardiac pacemaker in which an electrogram is recorded from an evoked response sensing channel in order to detect changes indicative of cardiac ischemia. If such changes are detected, the maximum...
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7337000 |
Selection of cardiac signal features detected in multiple classification intervals for cardiac pacing response classification
Cardiac devices and methods involve the detection of cardiac signals features in adjacent classification intervals. Portions of the cardiac signal features detected in adjacent classification...
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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...
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7330761 |
Baseline adaptation for cardiac pacing response classification
Methods and devices for establishing and using baseline for cardiac pacing response detection are described. A baseline amplitude of the cardiac signal may be established using data acquired in an...
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7328067 |
Cardiac rhythm management system and method
A system and method for cardiac rhythm management, which includes an electrode system having at least one electrode and control circuitry coupled to the electrode system from which a first cardiac...
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7319900 |
Cardiac response classification using multiple classification windows
Methods and devices for classifying a cardiac response to pacing involve establishing a plurality of classification windows relative to and following a pacing pulse. One or more characteristics of...
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