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7620453 |
Implantable medical device with improved EMI filter
An electromagnetic interference (EMI) filter is provided to attenuate potentially damaging high frequency electromagnetic interference from interfering with the operation of a hermetically sealed...
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7616994 |
Fast post-antitachycardia pacing redetection algorithm
A method comprising detecting a ventricular tachycardia heart rhythm in a patient, providing anti-tachycardia pacing (ATP) therapy to the patient in response to the ventricular tachycardia heart...
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7610090 |
Implantable medical device with automatic sensing adjustment
An implantable medical device system that senses physiologic processes via multiple sensor signal configurations. The device can further process the sensor configurations to obtain additional...
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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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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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7590445 |
Indirect mechanical medical therapy system
A device and methods for automatically evaluating one or more patient physiological parameters and, upon determination that certain therapies are indicated, delivering therapeutic mechanical...
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7580741 |
Method and device for determination of arrhythmia rate zone thresholds using a probability function
A probability function for heart rate is determined using collected and measured heart rate values. One or more heart rate probability values are selected. Thresholds for arrhythmia rate zones are...
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7574258 |
Cardiac therapy triggered by capture verification
The present invention provides methods and systems for tachyarrhythmia therapy involving pacing the heart to prior to the application of a cardioversion/defibrillation shock. One or more pace...
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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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7551959 |
Cardiac rhythm management for fetal, neonatal, and/or pediatric patients
A method including inserting an electrode into an umbilical vein, and advancing the electrode through the umbilical vein to a location near or in a heart. In an example, the electrode is inserted...
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7536222 |
Nonvascular implantable defibrillator and method
A power supply for an implantable cardioverter-defibrillator for subcutaneous positioning between the third rib and the twelfth rib and using a lead system that does not directly contact a...
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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...
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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...
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7522957 |
Defibrillation pacing circuitry
Electrical circuit componentry is switchable into a defibrillator circuit to deliver a constant pacing current to a patient. The circuitry may include a constant current source inserted in a leg of...
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7522956 |
Apparatus and method for treating ventricular tachyarrhythmias
A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial...
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7519424 |
Intravascular medical device
An implantable medical device is configured so that all of the major components including a housing and attached leads are disposed within the vasculature of a patient. A tether extends from the...
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7515960 |
Method and apparatus to terminate ventricular tachycardia via pacing
An implantable device for terminating ventricular tachycardia is disclosed. The device includes a processor configured to determine a first antitachycardia pulse routine of N pulses. In the routine...
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7499747 |
External baroreflex activation
Methods and systems for external baroreflex activation allow a physician to characterize a patient's response to baroreflex activation prior to providing baroreflex activation therapy. Methods...
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7493161 |
System and method to deliver therapy in presence of another therapy
Various aspects relate to a method. In various embodiments, a therapy of a first therapy type is delivered, and it is identified whether a therapy of a second therapy type is present to affect the...
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7477942 |
ATP therapy for tachyarrhythmias in VF zone
A method and apparatus for delivering therapy to treat ventricular tachyarrhythmias is described. A ventricular tachyarrhythmia can be classified into tachycardia or fibrillation zones using a rate...
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7474920 |
Method and apparatus for delaying a ventricular tachycardia therapy
A device and method to detect slow ventricular tachycardia, deliver anti-tachycardia pacing therapies, and delay a scheduled shock therapy if the ventricular tachycardia is not terminated or...
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7467017 |
Implantable lead having articulated shocking coil
An implantable lead is disclosed which includes an elongated lead body having opposed proximal and distal end portions. At least one defibrillation assembly is operatively associated with the...
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7450995 |
Implantable cardiac stimulation device including an output circuit that provides arbitrarily shaped defibrillation waveforms
An output circuit for use in an implantable cardiac defibrillation provides an output pulse having a waveform of virtually any desired shape. The device includes a sensing circuit that senses...
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7447533 |
Implantable electronic medical device having an encapsulated optical transducer
An implantable electronic device has a main housing with a leak-proof-sealed housing chamber containing electronic circuitry. An optical module is connected to the main housing, and has a module...
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7392081 |
Subcutaneous cardiac stimulator employing post-shock transthoracic asystole prevention pacing
Transthoracic cardiac stimulation therapies provide for detection and treatment of cardiac asystole subsequent to delivery of a defibrillation therapy. A pacing therapy is transthoracicly delivered...
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7389139 |
Simplified defibrillator output circuit
High side driver circuitry for a defibrillator circuit employs respective capacitors connected to respective gates of silicon controlled rectifiers serving as high side switches. Applying a voltage...
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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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7386344 |
Pacer with combined defibrillator tailored for bradycardia patients
A combination pacer/defibrillator is tailored for bradycardia patients. In one example, its shock-delivery specificity exceeds its sensitivity to shockable ventricular tachyarrhythmias. In another...
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7386343 |
Spectrum-driven arrhythmia treatment method
A method and apparatus for treating an arrhythmia is provided. The method includes the steps of: (a) sensing at least one electrical signal from the patient's heart; (b) calculating a frequency...
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7383085 |
Subcutaneous implantable cardioverter/defibrillator
Implantable cardioverter-defibrillators (ICDs) are disclosed that are entirely implantable subcutaneously with minimal surgical intrusion into the body of the patient and provide distributed...
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7379771 |
Conduction based automatic therapy selection
A system comprising an implantable medical device includes a ventricular heart signal sensing circuit, a pacing therapy circuit, and a controller circuit coupled to the signal sensing circuit and...
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7376458 |
Method for defining signal templates in implantable cardiac devices
Template formation methods for use in implantable cardiac rhythm management devices. In an illustrative method, a signal is captured signal an implanted cardiac rhythm management device, and...
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7373207 |
Treatments for a patient with congestive heart failure
The invention is directed to devices for two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure. One procedure involves providing a valve to form a...
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7363083 |
Flexible subcutaneous implantable cardioverter-defibrillator
One embodiment of the present invention provides an implantable cardioverter-defibrillator for subcutaneous positioning over a patient's ribcage, the implantable cardioverter-defibrillator...
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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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7359754 |
Optional use of a lead for a unitary subcutaneous implantable cardioverter-defibrillator
One embodiment of the present invention provides an implantable cardioverter-defibrillator for subcutaneous positioning over a patient's ribcage, the implantable cardioverter-defibrillator includes...
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7336994 |
Control of atrial defibrillation therapy based on hemodynamic sensor feedback
Control of defibrillation therapy delivered by implantable medical devices (IMDs) using hemodynamic sensor feedback is disclosed. The hemodynamic sensor feedback allows for increased control over...
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7317942 |
Dynamic discrimination utilizing anti-tachy pacing therapy in an implantable medical device
A method and medical device for discriminating an arrhythmia that includes an input circuit sensing cardiac signals and a microprocessor identifying an event associated with the sensed cardiac...
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7308308 |
Method to monitor progression of atrial fibrillation and to detect its susceptibility for termination
A method and apparatus for monitoring a patient's cardiac electrical activity is disclosed. The method includes determining a characteristic of the cardiac signals during a detected episode of...
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7295872 |
System for and method of power efficient electrical tissue stimulation
Circuitry for and method of power efficient operation of, and energy recovery from, tissue-stimulating electrodes having high charge capacities. Post-stimulation energy is recovered from the...
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7289849 |
Atrial pacing therapy for treating mitral regurgitation
A method and apparatus are disclosed for treating mitral regurgitation with electrical stimulation. By providing pacing stimulation to the left atrium during ventricular systole, a beneficial...
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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...
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7283872 |
Implantable medical device with ventricular pacing protocol
An implantable medical device operates to promote intrinsic ventricular depolarization according to a pacing protocol. The medical device monitors the AV interval and adjusts the Ventricular Pacing...
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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...
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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...
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7277752 |
System for cardiac resuscitation
A system and method for monitoring and controlling the therapy of a cardiac rhythm abnormality victim at a remote site by proving immediate access to a medical professional at a central station....
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7277751 |
ECG/pacing electrodes
A medical electrode assembly comprising a first electrically conductive element configured to be in electrical contact with the patient and to deliver a therapy pulse, a second electrically...
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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...
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7266410 |
Method and system for the prediction of cardiac arrhythmias, myocardial ischemia, and other diseased condition of the heart associated with elevated sympathetic neural discharges
Methods and systems are provided for determining an increased likelihood of the occurrence of a cardiac arrhythmia, myocardial ischemia, congestive heart failure and other diseased conditions of...
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7266409 |
Method and apparatus for determining oversensing in a medical device
A method and apparatus for determining oversensing in an implantable medical device that includes sensing a first cardiac signal and detecting cardiac events via a first electrode configuration,...
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