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7065404 |
Rate-adaptive cardiac pacemaker
A rate-adaptive cardiac pacemaker has a detection unit 1 , an event-determining unit 2 , a stimulation control unit 3 and a stimulation unit 11 , wherein the event-determining unit 2 is...
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7062322 |
Rhythm-based transition to discriminatory arrhythmia classification
In a medical device that monitors and/or treats ventricular arrhythmia, the invention provides for a “normal” processing mode of operation and a “guarded” processing mode of operation. The...
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7062324 |
Specific method for implantable cardiac control
A method and device for modulating cardiac control. The method comprises selecting waveforms from a storage area that are representative of body organ function. The selected waveforms are then...
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7062323 |
Maximum atrial tracking rate for cardiac rhythm management system
A cardiac rhythm management system includes an operational mode in which ventricular pacing pulses are delivered at a rate that tracks a sinoatrial rate up to an appropriate maximum atrial tracking...
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7062326 |
Method and apparatuses for monitoring hemodynamic activities using an intracardiac impedance-derived parameter
An intracardiac impedance-derived parameter, Half Cycle Activity (HCA) is used in sensing and controlling cardiac activities in implantable cardiac devices such as bradycardia pacemakers and...
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7058448 |
Dual chamber pacing system with a mode switch
A dual chamber pacing system normally operates in an atrial synchronized mode, and includes a mode switch that switches the pacing mode to a non-atrial synchronized ventricular stimulating mode in...
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7058449 |
Safety pacing in multi-site CRM devices
Safety pacing in multi-site cardiac rhythm management (CRM) devices is provided. According to various method embodiments, a first cardiac signal from a first cardiac region and a second cardiac...
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7054686 |
Pulsewidth electrical stimulation
A process for stimulating tissue such as cardiac tissue, nerve tissue, and brain tissue. In one step of the process, there is delivered an electrical stimulating signal to the tissue that contains...
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7050849 |
Vibrational therapy device used for resynchronization pacing in a treatment for heart failure
Systems for pacing the heart include a vibrational transducer which directs energy at the heart, usually at at least a ventricle, to pace the heart and to promote synchronized contraction of the...
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7050852 |
Pacemaker mode switching based upon atrial conduction time
A cardiac pacemaker is configured to estimate the intrinsic atrial conduction time from sensed signals detected by an atrial sensing channel. Atrial conduction delays have been found to be...
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7050853 |
Detection of patient mortality by an implantable medical device
An implantable cardiac rhythm management device is programmed and configured to detect a death event. When such an event is detected, the device ceases recording of physiological data, thus...
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7047073 |
Cardiac stimulating device
An implantable cardiac stimulating device has a pacing circuit connected via an electrode lead system to a first electrode which stimulates and detects activity in the left ventricle, a second...
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7043302 |
Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device
Techniques are described for overdrive pacing the heart using a pacemaker wherein the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search...
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7043301 |
Implantable cardiac stimulation system providing high output far-field pacing and method
An implantable cardiac stimulation device provides therapy for hearts having severe conduction abnormalities such as hearts suffering from congestive heart failure. The implantable cardiac...
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7039467 |
Therapeutic device and method for treating diseases of cardiac muscle
An apparatus and method for conferring a therapeutic current to the heart is provided. The apparatus includes a first electrode, a second electrode, a current generator and a controller. The...
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7027862 |
Apparatus and method for transmitting an electrical signal in an implantable medical device
A method and device for transmitting a signal in an implantable medical device that includes a control unit and a first electrode and a second electrode positioned along a lead body. A connector...
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7027865 |
Pacemaker with vasovagal syncope detection and therapy
A method and apparatus for cardiac pacing are provided in which pacing pulses are delivered at an increased rate in response to a detected intrinsic heart rate drop and a special rate drop response...
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7024241 |
Pacing pulse waveforms that support simultaneous intracardiac signal sensing and analysis
An implantable cardiac stimulation device is configured to generate multiphasic stimulation pulse waveforms. These multiphasic stimulation pulse waveforms are configured such that they can be...
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7020530 |
Method and apparatus for passive cardiac stimulation
This invention is a passive conductor assembly for use with an implanted device having an intra-cavitarily or trans-venously disposed electrode. The assembly can include electrical components in...
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7020522 |
Dual chamber heart stimulator with evoked response detector
A heart stimulator has an atrial and ventricular pulse generator for producing atrial and ventricular stimulation pulses, an atrial sensor for sensing atrial signals and an evoked response detector...
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7020525 |
Flexible electrical interconnect for an implantable medical device
A flat ribbon cable for interconnecting electrical components mounted in mating clamshell enclosure halves of an implantable cardiac stimulation device. The ribbon cable is configured to butterfly...
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7013176 |
Method and apparatus for setting pacing parameters in cardiac resynchronization therapy
A method and apparatus is disclosed for automatically setting the pacing parameters utilized by an implantable cardiac device in delivering cardiac resynchronization therapy. The selection of the...
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7010345 |
Method and apparatus to minimize effects of a cardiac insult
A method and apparatus are provided for protecting cardiac tissue from insult. The method comprises identifying the occurrence of an insult, such as a heart attack, and delivering electrical...
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7010347 |
Optimization of impedance signals for closed loop programming of cardiac resynchronization therapy devices
What are described herein are implantable cardiac devices such as pacemakers and defibrillators that deliver cardiac resynchronization therapy (CRT), and to a method of optimizing acquisition of...
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7003347 |
System and method for cardiac rhythm management with dynamically adjusted synchronized chamber pacing protection period
A device and method for cardiac rhythm management in which one heart chamber, designated as the synchronized chamber, is paced in accordance with a pacing mode that employs sense signals from the...
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6996437 |
Ventricular safety pacing in biventricular pacing
A pacing method and apparatus includes providing an AV interval initiated by occurrence of either an atrial paced or sensed event. A ventricular safety pacing window is defined. In one embodiment,...
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6993388 |
System and method for assessment of cardiac electrophysiologic stability and modulation of cardiac oscillations
Described is a method of delivering a pacing pattern to a heart, measuring a response of the heart to the pacing pattern, the measured response including a series of electrograms representing a...
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6988001 |
Hermetic component housing for photonic catheter
A hermetic component housing for use with a photonic catheter connected to a photonic pacemaker or other medical system designed for compatibility with Magnetic Resonance Imaging (MRI) procedures....
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6988003 |
Implantable cardioverter-defibrillator having two spaced apart shocking electrodes on housing
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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6985772 |
Cardiac pacemaker with automatic adaptation of pacing rate to cardiac output
A pacemaker has a pulse generator for delivering stimulation pulses to a patient's heart, a sensor for measuring a parameter related to cardiac output, and a control unit for controlling the...
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6978175 |
System and method for automatically and adaptively segmenting an atrial blanking period
An implantable stimulation device delivers a stimulation pulse in the ventricular chamber of a patient's heart and automatically adjusts a post-ventricular atrial blanking period. The stimulation...
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6978176 |
Treatment for patient with congestive heart failure
Two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure, may be performed separately or together. One procedure involves providing a valved passageway...
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6975905 |
Stimulation circuits for a cycle to cycle stimulation threshold capture for an active implantable cardiac device
A circuit for delivering a back-up stimulation voltage in a cycle to cycle capture test for an active implantable medical device such as a pacemaker, defibrillator and/or cardiovertor or a...
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6975906 |
One piece header assembly over molded to an implantable medical device
The present invention is directed to a header assembly attachable to a medical device for the purpose of connecting its output terminals to at least one lead, the lead terminating at a target organ...
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6971391 |
Protective assembly
An assembly for protecting biological tissue from the effects of heating. The assembly contains a conductor in contact with the biological tissue and forming an electrical circuit comprising the...
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6973347 |
Local cardiac motion control using applied electrical signals and mechanical force
Apparatus ( 18 ) for performing a medical procedure on a beating heart ( 20 ) includes a mechanical stabilization element ( 25 ), a surface ( 27 ) of which is adapted to be applied to a segment (...
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6973348 |
Heart monitors with robust interval measurements
Thousands of patients prone to irregular and sometimes life threatening heart rhythms have miniature heart-monitoring devices, such as defibrillators and cardioverters, implanted in their chests....
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6970742 |
Method for detecting, diagnosing, and treating cardiovascular disease
A method of treating cardiovascular disease in a medical patient is provided. The method includes the steps of generating a sensor signal indicative of a fluid pressure within the left atrium of...
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6970743 |
System and method for treating abnormal ventricular activation-recovery time
An implantable cardiac stimulation device provides long QT interval therapy for preventing abnormal ventricular activation-recovery time and ultimately ventricular arrhythmias. The device includes...
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6968233 |
Implantable cardiac stimulation device including a system for and method of automatically inducing a tachyarrhythmia
A system and method for use in an implantable cardiac stimulation device permits automatic induction of a tachyarrhythmia of a heart to permit the performance of an electrophysiological test of the...
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6963775 |
System and method for verifying capture in a multi-site pacemaker
An apparatus and method for verifying capture by a selected pacing electrode in a multi-site pacemaker. A switching circuit switches the input of an evoked response sensing channel to an unselected...
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6963780 |
Implantable medical device including a surface-mount terminal array
An implantable medical device comprises an enclosure, a first plurality of electrical contacts disposed within the enclosure, at least a first electrical component secured within the enclosure, a...
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6961618 |
Vagal nerve stimulation techniques for treatment of epileptic seizures
The present invention uses electrical stimulation of the vagus nerve to treat epilepsy with minimized or no effect on the heart. Treatment is carried out by an implantable signal generator, one or...
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6961613 |
Implantable bi-ventricular stimulation device and system, and bi-ventricular stimulation and sensing method
An implantable bi-ventricular heart stimulating device has a control circuit that within a time cycle, delivers pacing pulses with both first and second pacing circuits with a time gap between a...
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6959213 |
Implantable device with digital waveform telemetry
A technique for acquiring and accessing information from a medical implantable device is provided. Analog waveforms of interest are sensed and processed by signal acquisition circuitry. Analog...
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6957104 |
Ventricular pacing for prevention of atrial fibrillation
A method and apparatus for preventing atrial fibrillation arising from a premature atrial contraction. Upon detection of a premature atrial contraction, a pace is delivered to a ventricle at a...
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6954671 |
Implantable heart stimulator or which identifies the origin of heart signals
An implantable heart stimulator has a heart signal detector adapted to detect electrical heart signals and to apply the detected signals to at least two detection channels. Each detection channel...
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6952609 |
Cardiac stimulating device
An implantable cardiac stimulating device has an atrial pulse generator and an atrial sensor connected to an atrial electrode, for delivering stimulating pulses to the atrium and sensing events in...
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6949075 |
Apparatus and method for detecting lung sounds using an implanted device
Adventitious lung sounds indicative of lung congestion are detected using an implantable sensor. The sensor is adapted to be positioned adjacent to a pulmonary system and to output signals...
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6945939 |
Hemodynamic analysis
To track significant changes in a hemodynamic variable of a living body regardless of measurement noise induced by cyclical functions of the body, the hemodynamic variable is measured at...
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