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7596411 |
Apparatus and method for two-component bioelectrical impedance ratio measuring and monitoring
An implantable cardiac stimulation and rhythm management device includes an impedance measuring circuit which determines a patient's intra-thoracic impedance and the resistance and reactance...
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7577480 |
System for waveform stimulation compensating electrode polarization
Upon delivery of a pacing pulse to a heart by an electrode of an implantable medical device (IMD), a deleterious pace polarization artifact is generally created at the electrode-tissue interface...
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7551960 |
External presentation of electrical stimulation parameters
An external indicator device presents parameters associated with stimulation therapy generated by a pulse generator, which may be associated with an external or implantable stimulation device. In...
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7502594 |
Power regulation feedback to optimize robustness of wireless transmissions
A wireless communication system with power regulation feedback for improving the robustness of wireless communication transmissions between a receiver and an active emitter irrespective of the...
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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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7499749 |
Method and apparatus for minimizing post-infarct ventricular remodeling
A cardiac rhythm management device for in which pre-excitation pacing is applied to one or more sites in proximity to an infarcted region of the ventricular myocardium. Such pacing servers to...
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7486990 |
Electrocardiogram monitoring and cardiac therapy pulse delivery system and method
A cardiac therapy pulse delivery system includes a plurality of electrodes, an ECG signal processor circuit, and a pulse generator circuit. Each of the electrodes has at least one therapy element...
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7480532 |
Baroreflex activation for pain control, sedation and sleep
Systems and methods provide baroreflex activation to treat or reduce pain and/or to cause or enhance sedation or sleep. Methods involve activating the baroreflex system to provide pain reduction,...
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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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7403819 |
Parasympathetic nerve stimulation for control of AV conduction
Exemplary methods for affecting conduction and/or operation of the AV node and/or AV bundle. Various exemplary methods include delivery of one or more stimulation pulses to affect conduction and/or...
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7366567 |
Method for treating myocardial infarction
A method for treating patients after a myocardial infarction which includes pacing therapy is disclosed. A cardiac rhythm management device is configured to deliver pre-excitation pacing to one or...
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7317948 |
Neural stimulation system providing auto adjustment of stimulus output as a function of sensed impedance
A neural stimulation system automatically corrects or adjusts the stimulus magnitude (stimulation energy) in order to maintain a comfortable and effective stimulation therapy. Because the changes...
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7299093 |
Method and apparatus for avoidance of phrenic nerve stimulation during cardiac pacing
A cardiac rhythm management device in which an accelerometer is used to detect diaphragmatic or other skeletal muscle contraction associated with the output of a pacing pulse. Upon detection of...
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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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7254446 |
System and method for stimulus calibration for an implantable pulse generator
A system, method, and computer program product for calibrating a stimulation device such as an implantable pulse generator (IPG). An IPG, whether it is a self-contained implantable pulse generator...
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7245965 |
Implantable cardiac device providing mode switching and automatic atrial sensitivity control and method
An implantable cardiac stimulation device, mode switchable between atrial tracking and atrial non-tracking pacing modes includes a threshold control for controlling atrial sensing threshold. The...
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7233824 |
Secure and efficacious therapy delivery for an extra-systolic stimulation pacing engine
An extra-systolic stimulation (ESS) therapy addresses cardiac dysfunction including heart failure. ESS therapy employs atrial and/or ventricular extra-systoles via pacing-level stimulation to a...
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7181280 |
System and method of automatically adjusting auto capture safety margin
An implantable stimulation device delivers a stimulation pulse in a chamber of a patient's heart and perform periodic threshold tests for generating a statistical model of the threshold data, to...
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7158831 |
Method and apparatus for cardiac pacing with variable safety margin
A cardiac pacemaker in which a variable safety margin with respect to a capture threshold is employed in delivering pacing pulses. The safety margin of a pacing pulse is made to vary in accordance...
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7127288 |
Method and apparatus for low power, regulated output in battery powered electrotherapy devices
A device for controlling the discharge of a battery supplying an intermittent load, such as a nerve stimulation device. The device includes a controller which operates a switched inductor to feed a...
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7110815 |
System and method for providing temporary stimulation therapy to optimize chronic electrical performance for electrodes used in conjunction with a cardiac rhythm management system
A system and method for stimulating a human heart including a sensing module coupled through a lead to an electrode associated with a tissue of the human heart for sensing electrical activity of...
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7099716 |
Implantable cardiac stimulation device having autocapture/autothreshold capability
An improved system and method for performing autocapture/autothreshold detection in an implantable cardiac stimulation device or any device capable of stimulating some organ or tissue in the body....
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7082330 |
Implantable medical device employing sonomicrometer output signals for detection and measurement of cardiac mechanical function
Implantable medical devices (IMDs) for detection and measurement of cardiac mechanical and electrical function employ a system and method for determining mechanical heart function and measuring...
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7065406 |
Cardiac pacemaker utilizing prolonged A-V interval and ventricular autocapture
A dual chamber cardiac pacemaker has a pulse controller for delivering stimulation pulses to the ventricle of a heart, a ventricular sensor for sensing ventricular depolarization, and a unit for...
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7054688 |
Heart stimulator with evoked response detector and an arrangement for determining the stimulation threshold
A heart stimulator has a pulse generator which emits stimulation pulses of different amplitudes, which are delivered to a patient's heart via a lead connected to the pulse generator. The pulse...
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6936018 |
Reusable/disposable thermal application and holder device
A therapeutic wrap is disclosed for applying a thermal pad to a human body portion. The wrap includes an elongated flexible strip of disposable and reusable material. The strip has first and second...
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6904317 |
Method and apparatus for dynamically adjusting overdrive pacing parameters
Dynamic overdrive pacing adjustment techniques are described for use in implantable cardiac stimulation devices. In a first technique, an overdrive pacing unit of a microcontroller of the...
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6882883 |
Implantable medical device (IMD) system configurable to subject a patient to a stress test and to detect myocardial ischemia within the patient
Various implantable medical devices (IMDs) are disclosed for implantation in a patient. The IMD includes pacing circuitry configured to selectively produce pacing pulses at a programmable pacing...
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6810286 |
Stimulation for delivery of molecular therapy
Provided are novel stimulatory device for the controlled production of angiogenic growth factors. More specifically, a subthreshold pulse generator is used for the local production of vascular...
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6615082 |
Method and device for optimally altering stimulation energy to maintain capture of cardiac tissue
An improved system and method for performing automatic capture/threshold detection in an implantable cardiac stimulation device or any device capable of stimulating some organ or tissue in the...
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6553259 |
System and method of performing automatic capture in an implantable cardiac stimulation device
An implantable cardiac stimulation device possessing pacing, cardioversion and defibrillation functions and automatic capture capabilities, for automatically verifying capture during stimulation...
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6456879 |
Method and device for optimally altering stimulation energy to maintain capture of cardiac tissue
An improved system and method for performing automatic capture/threshold detection in an implantable cardiac stimulation device or any device capable of stimulating some body organ or tissue. Prior...
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6249702 |
Pacemaker system with simplified atrial capture detection based on QT interval
There is provided a system and method for determining, in a DDD or DDD(R) pacing system, when a delivered atrial pace pulse has failed to capture the patient's atrium. Each cycle, following a...
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6148234 |
Dual site pacing system with automatic pulse output adjustment
There is provided a dual site pacing system, either bi-ventricular or bi-atrial, wherein the pacemaker looks for a signal sense during the refractory period following delivery of the pulse pair. If...
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6127410 |
Compositions, apparatus and methods for facilitating surgical procedures
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
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5861008 |
Heart stimulating device with stimulation energy responsive to detected noise
A heart stimulating device has pulse generators which can operate in either a first mode wherein the stimulation pulse energy is adjusted to a capture threshold of a patient's heart, or a second...
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5855594 |
Self-calibration system for capture verification in pacing devices
A cardiac pacing and sensing system includes a body implantable unit for generating tissue stimulation pulses and manipulating information based on sensed signals, and a catheter for transmitting...
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5772692 |
Implantable medical device with automatic adjustment to externally generated shocks
An implantable cardiac stimulator, which may include cardioversion and pacemaker capabilities, which has apparatus for detecting an externally applied shock, such as a defibrillation or...
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5741312 |
Pacemaker system and method with improved capture detection and threshold search
There is provided a pacemaker system with capture verification and threshold testing, in which the pacemaker waits after each change in delivered pace pulses for a stabilization interval, in order...
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5683427 |
Electrophysiological stimulator with variable stimulation pulse
A heart stimulator has a pulse generator which periodically emits stimulation pulses, least one electrode connectable to the pulse generator and to the heart for transmitting said pulses to the...
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5674254 |
Cardiac pacemaker system and method for determining a measure of pacing threshold without incurring loss of capture
A implantable cardiac pacemaker system which is battery powered, having an improved capability for monitoring patient threshold and adjusting pace pulse output to an optimized safety factor above...
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5609611 |
Pacemaker system with porous electrode and residual charge or after-potential reduction
A cardiac pacemaker system is provided which includes a stimulation electrode adapted for being anchored in the heart. An output capacitor is coupled to the stimulation electrode. A first circuit...
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5423866 |
Constant charge pacemaker
A pacemaker has a pulse source for delivering heart stimulation pulses to at least one heart stimulation electrode which includes a source for charging a charge storage element with a prescribed...
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5405365 |
Implantable medical device having means for stimulating tissue contractions with adjustable stimulation intensity and a method for the operation of such a device
Implantable medical device comprising a device for stimulating tissue contractions with adjustable stimulation intensity, whereby the stimulation intensity is set such that a stimulated event is...
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5387228 |
Cardiac pacemaker with programmable output pulse amplitude and method
An implantable cardiac pacemaker having programmable stimulating pulse amplitudes selectable by means of an external programming unit. The pacemaker includes charge pump circuitry for developing a...
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5350410 |
Autocapture system for implantable pulse generator
An autocapture system within an implantable pulse generator automatically maintains the energy of a stimulation pulse at a level just above that which is needed to effectuate capture. The...
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5350405 |
Method and apparatus for capacitor tolerance compensation in a cardiac stimulating device
A method and apparatus for determining the actual capacitance of a capacitor in a cardiac stimulating device in order to determine the potential necessary to store a desired amount of energy on the...
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5336242 |
Band-pass filter for use in a sense amplifier of an implantable cardiac pacer
A low-power band-pass filter for use in a cardiac pacer includes a single operational amplifier connected in circuit relationship with a plurality of switched capacitors that function as bilinear...
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5320643 |
Automatic cardiac capture restoration and threshold-seeking method and apparatus
An automatic capture restoration and threshold-seeking method and apparatus for use with a cardiac pacemaker derives control signals for restoring cardiac capture from a cardiac pressure sensor....
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5307791 |
Air massaging device with a precise pressure control
An air massaging device having at least one inflatable air bag adapted to be laid against a portion of the human body. The device includes an air pump generating a pressurized air and a distributor...
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