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| Number | Title | Issue Date |
| 8027722 | Multifocal PVC detection for prevention of arrhythmias Multifocal PVCs are detected and prevented. If the PVCs being detected have variable coupling intervals and significantly different morphologies, they are deemed multifocal and a prevention therapy is activated for a short period of time. In another embodiment, mult... | 09/27/2011 |
| 7945326 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 05/17/2011 |
| 7925349 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 04/12/2011 |
| 7925334 | System and method for processing and storing signal information in an implantable cardiac device In an implantable cardiac device data is processed and stored to conserve storage space and computational resources thereby saving energy expended on these operations. The data being processed may be associated with signals with known and/or predictable patterns. A ... | 04/12/2011 |
| 7917197 | Methods and devices for determining exercise diagnostic parameters A device, such as an implantable cardiac device, and methods for determining exercise diagnostic parameters of a patient are disclosed. Specifically, a maximum observed heart rate of a patient during exercise can be identified when an activity level and a heart rate... | 03/29/2011 |
| 7909768 | Reducing data acquisition, power and processing for hemodynamic signal sampling Methods, systems and devices are provided for reducing the amount of data, processing and/or power required to analyze hemodynamic signals such as photoplethysmography (PPG) signals, pressure signals, and impedance signals. In response to detecting a specific event ... | 03/22/2011 |
| 7848816 | Acquiring nerve activity from carotid body and/or sinus An exemplary includes acquiring an electroneurogram of the right carotid sinus nerve or the left carotid sinus nerve, analyzing the electroneurogram for at least one of chemosensory information and barosensory information and calling for one or more therapeutic acti... | 12/07/2010 |
| 7813805 | Subcardiac threshold vagal nerve stimulation In one embodiment, an implantable stimulation apparatus includes a vagal nerve stimulator configured to generate electrical pulses below a cardiac threshold of a heart, and an electrode coupled to the vagal nerve stimulator which is configured to transmit the electr... | 10/12/2010 |
| 7801594 | Morphology discrimination based on inflection point-related information A morphology discrimination scheme extracts shape characteristics from cardiac signals and identifies an associated cardiac condition based on the shape characteristics. For example, internal data structures may be updated to match the shape characteristics of a kno... | 09/21/2010 |
| 7725187 | Motion detection for sensors sensitive to motion induced noise Provided herein are implantable systems, and methods for use therewith, for estimating a level of noise in a signal produced by an implantable sensor that is sensitive to motion induced noise. Sample data is obtained that is representative of a window of a signal pr... | 05/25/2010 |
| 7676275 | Endovascular lead for chronic nerve stimulation A lead of the present invention comprises an electrode array adapted to be stably anchored at a selected location within the vena cava of a human patient. The electrode array may take various shapes, including helical, annular and linear. The electrode array is conn... | 03/09/2010 |
| 7676264 | Systems and methods for use by an implantable medical device for evaluating ventricular dyssynchrony based on T-wave morphology Techniques are provided for detecting and evaluating ventricular dyssynchrony based on morphological features of the T-wave and for controlling therapy in response thereto. For example, the number of peaks in the T-wave, the area under the peaks, the number of point... | 03/09/2010 |
| 7676262 | Methods and devices for determining exercise compliance diagnostics One or more sensors sense patient heart rate and patient activity and provide related signals to a processor. The processor is responsive to sensor signals and obtains an activity threshold based on historical patient heart-rate signals and historical patient activi... | 03/09/2010 |
| 7668590 | Methods and devices for determining exercise diagnostic parameters A device, such as an implantable cardiac device, and methods for determining exercise diagnostic parameters of a patient are disclosed. Specifically, a maximum observed heart rate of a patient during exercise can be identified when an activity level and a heart rate... | 02/23/2010 |
| 7653434 | Autonomous sensor modules for patient monitoring Embodiments of the present invention relate to implantable sensors for obtaining hemodynamic data and/or physiologic data. More specifically, embodiments of the present invention enable additional sensing hardware to be added into implantable devices more quickly an... | 01/26/2010 |
| 7651647 | Method for producing highly conductive battery electrodes A method for producing battery cathodes comprises mixing a cathode active material and a conductive polymer such as polyaniline or poly(ethylenedioxythiophene). The conductive polymers are used in lieu of or in addition to conventional conductive additives and binde... | 01/26/2010 |
| 7627374 | System and method for evaluating and optimizing the contribution of particular heart chambers to the overall efficacy of cardiac pacing therapy Techniques are provided for evaluating and optimizing the contribution of particular heart chambers to pacing efficacy. Briefly, a pacemaker temporarily alters the mode with which pacing therapy is delivered so as to selectively alter the heart chambers that are pac... | 12/01/2009 |
| 7623914 | Reconfigurable digital network for processing data in an implantable medical device An implantable medical device (IMD) is provided. The IMD comprises a sense circuit, a main processing unit coupled to the sense circuit, a memory unit coupled to the main processing unit, and a reconfigurable processor unit coupled to the memory unit and the main pr... | 11/24/2009 |
| 7607036 | System and method for enabling continued use of trim values within an implantable medical device following a parity error Techniques are described for use by an implantable medical device equipped to use trim values, which allow the device to continue to use trim values despite certain memory errors such as parity errors. Briefly, optimal trim values are stored within RAM. Nominal trim... | 10/20/2009 |
| 7578924 | Process for producing high etch gains for electrolytic capacitor manufacturing Anode foil, preferably aluminum anode foil, is etched using a process of treating the foil in an electrolyte bath composition comprising a sulfate and a halide, such as sodium chloride. The anode foil is etched in the electrolyte bath composition by passing a charge... | 08/25/2009 |
| 7570995 | Method for reforming a capacitor in an implantable medical device The present invention provides a method for reforming a capacitor of an implantable medical device, such as an implantable cardioverter defibrillator, wherein the capacitor has a nominal voltage. The method of reforming the capacitor comprises charging the capacitor... | 08/04/2009 |
