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8150512 |
Use of impedance to assess electrode locations
A process for determining whether the location of a stimulation electrode meets a selected heart performance criteria includes providing stimulation to the heart through the electrode and obtaining...
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8116864 |
Assessing medical electrode condition
An apparatus and techniques for determining whether a medical electrode, such as a defibrillation electrode coupled to an automated external defibrillator, is in a condition for replacement. The...
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8099164 |
Selectively implementable digital signal processing circuit for an implantable medical device
Embodiments of the invention include an implantable medical device having a digital signal processing circuit associated with an implantable medical device function. The digital signal processing...
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8086306 |
OTC automatic external defibrillator with quick install battery
An automatic external defibrillator is shipped from the manufacturer with the battery installed in the battery compartment of the AED. During shipment a removable tab is located between a battery...
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8064996 |
Automatic determination of T-shock vulnerable window
A method and apparatus for determining a T-wave shock interval sense a cardiac electrogram (EGM) signal comprising a T-wave signal. A T-wave center is determined from the EGM signal, and a T-wave...
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8060200 |
Self-adjusting optimal waveforms
An exemplary method includes detecting fibrillation, measuring impedance of a defibrillation circuit that includes myocardial tissue, determining one or more defibrillation shock parameters based...
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8036737 |
Automated impedance measurement of an implantable medical device
Aspects of the present invention relate to automatic impedance measurements between one or more electrodes in a set of electrodes that may be associated with a lead of an implanted device. A...
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8036744 |
Cardiac rhythm management system with defibrillation threshold prediction
A cardiac rhythm management device predicts defibrillation thresholds without any need to apply defibrillation shocks or subjecting the patient to fibrillation. Intravascular defibrillation...
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8032213 |
Ventricular defibrillation threshold estimation
Systems and methods are provided for estimating a patient's ventricular defibrillation threshold (VDFT). Stimulation pulses, which are of at least three different energy levels up to 2 Joules, are...
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8005552 |
Assessing medical electrode condition
The invention presents an apparatus and techniques for determining whether a medical electrode, such as a defibrillation electrode coupled to an automated external defibrillator, is in a condition...
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8005545 |
Parasympathetic stimulation for prevention and treatment of atrial fibrillation
A method is provided, including identifying that a subject is at risk of suffering from atrial fibrillation (AF). Responsively to the identifying, a risk of an occurrence of an episode of the AF is...
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7966065 |
Treatment of heart failure by controlled adjustment of the atrioventricular and interventricular delays in an active implantable medical device
An active implantable medical device such as a cardiac prosthesis for the treatment of a heart failure by controlled adjustment of the atrioventricular and interventricular delays. The device...
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7957798 |
Defibrillator/monitor system having a pod with leads capable of wirelessly communicating
A modular external defibrillator system in embodiments of the teachings may include one or more of the following features: a base containing a defibrillator to deliver a defibrillation shock to a...
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7890167 |
Pain free defibrillation threshold estimation
A system and method for painlessly calculating an estimated defibrillation threshold, such as by using an implantable medical device and a controller. The estimated defibrillation threshold can be...
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7881785 |
Method and apparatus for defrosting a defibrillation electrode
A device and method for defrosting a defibrillation electrode are provided. This includes an automated external defibrillator that is capable of defrosting one or more frozen electrodes. The device...
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7877139 |
Method and device for implantable cardiac stimulus device lead impedance measurement
Methods and devices for testing lead impedance in an implantable cardiac stimulus device. A resistor is placed in series with the lead impedance, and a predetermined or known voltage is applied to...
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7848806 |
Virtual electrode polarization for shock therapy
An exemplary method includes configuring a coil electrode as a cathode, calling for delivery of energy to an electrode configuration that includes the coil cathode wherein the energy exceeds one...
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7818058 |
Automated ECG lead impedance measurement integrated into ECG gating circuitry
The present invention relates to a system and method for determining the impedance of an electrode at the electrode-body interface. The electrode-body impedance of one of the electrodes may be...
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7787948 |
Energy efficient therapeutic pulse generator system
The present invention relates generally to a therapeutic pulse generator system used to provide energy efficient stimulation/pacing by causing controlled cellular depolarization based on...
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7742823 |
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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7711425 |
Defibrillation threshold prediction methods and systems
A nondefibrillating and nonfibrillation-inducing energy is delivered at a first internal thoracic location. A first resulting electrical signal is detected at a second internal thoracic location in...
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7689278 |
Identification system for defibrillator electrode package
An automatic external defibrillator electrode package includes a coded conductive label that uniquely identifies the type of automatic electrode contained therein. Pins on the defibrillator body...
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7682745 |
Medical device having lithium-ion battery
A medical device includes a rechargeable lithium-ion battery for providing power to the medical device. The lithium-ion battery includes a positive electrode comprising a current collector and an...
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7680536 |
Capture threshold estimation for alternate pacing vectors
Approaches for estimating capture thresholds for alternate pacing vectors of multi-electrode pacing devices are described. Capture thresholds of at least one initial pacing vector is measured. The...
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7657314 |
Methods and systems for selecting capture verification modes
Methods and systems are directed to selecting from a variety of capture verification modes. A plurality of capture verification modes, including a beat by beat capture detection mode and a capture...
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7643877 |
Cardiac rhythm management system with defibrillation threshold prediction
A cardiac rhythm management device predicts defibrillation thresholds without any need to apply defibrillation shocks or subjecting the patient to fibrillation. Intravascular defibrillation...
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7526345 |
Assessing medical electrode condition
The invention presents an apparatus and techniques for determining whether a medical electrode, such as a defibrillation electrode coupled to an automated external defibrillator, is in a condition...
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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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7398122 |
Self adjusting optimal waveforms
An exemplary method includes detecting fibrillation, measuring impedance of a defibrillation circuit that includes myocardial tissue, determining one or more defibrillation shock parameters based...
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7317943 |
Capture threshold monitoring
In general, the invention is directed to techniques for capture testing of a capture threshold in cooperation with measurement of other cardiac parameters. Physiological or non-physiological...
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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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7302292 |
Breast cancer screening
A method of screening for breast cancer, comprising: testing a plurality of asymptomatic women by measuring at least one electrical impedance characteristic on at least one breast, said...
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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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7257441 |
Defibrillation shock strength determination technology
A method for determining a cardiac shock strength, for example the programmed first-therapeutic shock strength of an implantable cardioverter defibrillator (ICD), including the steps of sensing a...
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7236823 |
Portable defibrillators
A portable defibrillator includes a self-test circuit in which electrical energy is discharged from one or a bank of capacitors to a charge receiving circuit which recycles the energy to a...
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7212856 |
Reformation techniques for capacitors of implantable medical devices
The invention is directed to techniques for estimating a deformation factor of one or more capacitors in an implantable medical devices (IMD), and techniques for reforming such capacitors. An...
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7200434 |
Control of arbitrary waveforms for constant delivered energy
The present invention outlines structures and methods for delivering a controllable amount of energy to a patient by automatically compensating for the load impedance detected by an...
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7181272 |
Cardiac restraint with electrode attachment sites
The invention is directed to techniques for electrode placement around a heart. A harness having one or more attachment sites may be secured around the heart, and electrodes may be secured at the...
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7171269 |
Method of analysis of medical signals
A method of analysis of medical signals which uses wavelet transform analysis to decompose cardiac signals. Apparatus for carrying out the method, and cardiac apparatus adapted to employ the method...
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7142911 |
Method and apparatus for monitoring drug effects on cardiac electrical signals using an implantable cardiac stimulation device
An implantable cardiac stimulation device, such as a pacemaker or Implantable Cardioverter Defibrillator, is configured to automatically monitor the effects of antiarrhythmic drugs on cardiac...
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7120493 |
Shock lead impedance measurement to ensure safe delivery of shock therapy to maintain circuit integrity
An apparatus and method of automatically measuring the lead impedance of a high energy shock lead before delivery of high energy therapy used to treat heart arrhythmia. In one example, an impedance...
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7065403 |
System and method for measuring lead impedance in an implantable stimulation device employing pulse-train waveforms
A leakage detection system for use in an implantable cardiac stimulation device, such as a cardioverter defibrillator. The leakage detection system includes a switch bank and a controller that...
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7050851 |
Implantable cardioverter/defibrillator with housing electrode and lead detection and switching circuitry
An implantable cardioverter/defibrillator includes an active can electrode and a high-voltage lead that can be electrically isolated from one another by opening a switch between them. The...
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7047072 |
Selecting Electrotherapy dosage
A dosage for electrotherapy delivered to a patient, such as a defibrillation pulse delivered by an external defibrillator, is selected based on an age-related classification, such as adult or...
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6990373 |
Automated external defibrillator with user interface for adult and pediatric applications
An automated external defibrillator automatically determines the type of patient to which it is attached based on patient-specific information entered by the user. The defibrillator includes...
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6965796 |
Method and apparatus for self-test of defibrillation and pacing circuits including a patient isolation switch
A method and apparatus for performing self-tests on defibrillation and pacing circuits including a patient isolation switch is disclosed. Following a test of the defibrillation and pacing...
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6907290 |
Measurement of the complex impedance of an implantable lead
A process for the measurement of the complex impedance of a lead for an active implantable medical device, in particular a pacemaker, defibrillator and or cardiovertor. This process includes the...
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6859664 |
Cardiac rhythm management system with defibrillation threshold prediction
A cardiac rhythm management device predicts defibrillation thresholds without any need to apply defibrillation shocks or subjecting the patient to fibrillation. Intravascular defibrillation...
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6856840 |
Ionically conductive polymeric composition
An ionically conductive polymeric composition is disclosed. The composition is especially useful for coating an implantable hot can defibrillator electrode. The polymeric composition, for example,...
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