Patent application number | Description | Published |
20110144657 | SYSTEMS AND METHODS FOR DETERMINING THE LIKELIHOOD OF ENDOCARDIAL BAROTRAUMA IN TISSUE DURING ABLATION - A method and system for determining a likelihood of barotrauma occurring in tissue during the formation of a lesion therein is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire at least one value of at least one component of a complex impedance between an electrode and the tissue. The ECU is further configured to calculate an index responsive to the at least one value of the at least one complex impedance component. The index is indicative of a likelihood of barotrauma occurring in the tissue. The method comprises acquiring at least one value of at least one component of a complex impedance between an electrode and the tissue. The method further comprises calculating an index responsive to the at least one value of the at least one complex impedance component. The calculating index is indicative of a likelihood of barotrauma occurring in the tissue. | 06-16-2011 |
20120029504 | SYSTEM AND METHOD FOR PRESENTING INFORMATION REPRESENTATIVE OF LESION FORMATION IN TISSUE DURING AN ABLATION PROCEDURE - A method and system for presenting information representative of lesion formation is provided. The system comprises an electronic control unit (ECU). The ECU is configured to acquire a value for an ablation description parameter and/or a position signal metric, wherein the value corresponds to a location in the tissue. The ECU is further configured to evaluate the value, assign it a visual indicator of a visualization scheme associated with the parameter/metric corresponding to the value, and generate a marker comprising the visual indicator such that the marker is indicative of the acquired value. The method comprises acquiring a value for the parameter/metric, and evaluating the value. The method further includes assigning a visual indicator of a visualization scheme associated with the parameter/metric corresponding to the value, and generating a marker comprising the visual indicator. | 02-02-2012 |
20120089038 | Method and system for identifying cardiac arrhythmia driver sites - A method of identifying potential driver sites for cardiac arrhythmias includes acquiring a plurality of electrograms from a plurality of locations on at least a portion of a patient's heart. Using the acquired electrograms, at least one electrical activity map is generated. Desirable electrical activity maps include complex fractionated electrogram standard deviation and mean maps, dominant frequency maps, peak-to-peak voltage maps, and activation sequence maps. Using one or more of these maps (e.g., by analyzing one or more electrogram morphological characteristics represented by these maps), at least one potential driver site can be detected. | 04-12-2012 |
20120165658 | SYSTEM, ARTICLE OF MANUFACTURE, AND METHOD FOR CHARACTERIZING A MEDICAL DEVICE AND/OR ONE OR MORE SENSORS MOUNTED THEREON - Systems and methods for characterizing a medical device and/or the sensors thereof are provided. A system comprises an electronic control unit (ECU) configured to acquire first and second configurations of the device. The ECU is configured to process the configurations to calculate an index used to characterize the device and/or the sensors thereof. An article of manufacture comprises a computer-readable storage medium having a computer program encoded thereon for characterizing the device and/or the sensor thereof. The program includes code for acquiring first and second configurations of the device, and processing them together to calculate an index used to characterize the device and/or the sensors thereof. A method for characterizing the device and/or the sensors thereof comprises providing an ECU, acquiring, by the ECU, first and second configurations of the device, and processing them together to calculate an index used to characterize the device and/or the sensors thereof. | 06-28-2012 |
20130066221 | METHOD AND SYSTEM FOR IDENTIFYING CARDIAC ARRHYTHMIA DRIVER SITES - A method of identifying potential driver sites for cardiac arrhythmias includes acquiring a plurality of electrograms from a plurality of locations on at least a portion of a patient's heart. Using the acquired electrograms, at least one electrical activity map is generated. Desirable electrical activity maps include complex fractionated electrogram standard deviation and mean maps, dominant frequency maps, peak-to-peak voltage maps, and activation sequence maps. Using one or more of these maps (e.g., by analyzing one or more electrogram morphological characteristics represented by these maps), at least one potential driver site can be detected. | 03-14-2013 |
20130274582 | System and Method for Diagnosing Arrhythmias and Directing Catheter Therapies - An efficient system for diagnosing arrhythmias and directing catheter therapies may allow for measuring, classifying, analyzing, and mapping spatial electrophysiological (EP) patterns within a body. The efficient system may further guide arrhythmia therapy and update maps as treatment is delivered. The efficient system may use a medical device having a high density of sensors with a known spatial configuration for collecting EP data and positioning data. Further, the efficient system may also use an electronic control system (ECU) for computing and providing the user with a variety of metrics, derivative metrics, high definition (HD) maps, HD composite maps, and general visual aids for association with a geometrical anatomical model shown on a display device. | 10-17-2013 |
20150119735 | Cardiac Mapping System And Method For Bi-Directional Activation Detection Of Electrograms - In a system and computer implemented method for mapping of an anatomic structure and bi-directional activation detection of electrograms such as atrial and/or ventricular electrograms, both positive and negative deflections of an electrogram signal are analyzed over an analysis time period of the signal. At least one characteristic of the electrogram signal is determined based at least in part on analyzing both positive and negative deflections of the signal over the analysis time period. The determined at least one characteristic of the atrial electrogram signal is then associated with a generated three-dimensional model of the anatomic structure. | 04-30-2015 |
20150120207 | Cardiac Mapping System And Method For Voltage-Based Evaluation Of Electrograms - Systems and methods for evaluating electrograms are described. An example method of evaluating an electrogram such as an atrial and/or ventricular electrogram containing a plurality of data samples each having a voltage includes selecting an activity interval for the electrogram, calculating an energy level for each window of a plurality of windows of the electrogram based on the voltages of the data samples in each window, assigning the calculated energy levels to a plurality of bins, and calculating an index based at least in part on a number of energy levels assigned to a particular bin of the plurality of bins. | 04-30-2015 |
20160100770 | System and method for diagnosing arrhythmias and directing catheter therapies - An efficient system for diagnosing arrhythmias and directing catheter therapies may allow for measuring, classifying, analyzing, and mapping spatial electrophysiological (EP) patterns within a body. The efficient system may further guide arrhythmia therapy and update maps as treatment is delivered. The efficient system may use a medical device having a high density of sensors with a known spatial configuration for collecting EP data and positioning data. Further, the efficient system may also use an electronic control system (ECU) for computing and providing the user with a variety of metrics, derivative metrics, high definition (HD) maps, HD composite maps, and general visual aids for association with a geometrical anatomical model shown on a display device. | 04-14-2016 |