Patents by Inventor Charulatha Ramanathan
Charulatha Ramanathan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240078266Abstract: As an example, a system includes a hierarchical tag database that includes a plurality of tags arranged according to a hierarchical data schema for a number of tag hierarchies, and tags within each level of a respective tag hierarchy have a different specificity relative to each other level of the respective tag hierarchy. The data can also include profile tag data for a given user. The system can also include a processor configured to access the media and execute the instructions to expand each of the stored profile tags for the given user to provide an expanded profile tag data set for the given user, in which the expanded profile tag data set includes each of the assigned profile tags and each one or more higher-level tag in each associated tag hierarchy to which each of the assigned profile tags belongs.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Inventors: Jeffrey B. ADAIR, Charulatha RAMANATHAN, Ketal C. PATEL, Jiyan GARDI
-
Publication number: 20240032841Abstract: Systems and methods are disclosed to determine one or more sensing zones on a body surface for electrocardiographic mapping of a region of interest associated with the heart. The sensing zone can be utilized to facilitate acquisition, processing and mapping of electrical activity for the corresponding region of interest. In other examples, an application-specific arrangement of electrodes can also be provided based on the sensing zone that is determined for the region of interest.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Inventors: PING JIA, CHARULATHA RAMANATHAN, MARIA STROM, BRIAN P. GEORGE, LALITA BHETWAL, HAROLD WODLINGER, JONATHAN D. SMALL
-
Patent number: 11880955Abstract: A map generator can be programmed to generate a multi-parameter graphical map by encoding at least two different physiological parameters for a geometric surface, corresponding to tissue of a patient, using different color components of a multi-dimensional color model such that each of the different physiological parameters is encoded by at least one of the different color components.Type: GrantFiled: October 21, 2019Date of Patent: January 23, 2024Assignee: CARDIOINSIGHT TECHNOLOGIES INC.Inventors: Qingguo Zeng, Charulatha Ramanathan, Venkatesh Vasudevan, Rémi Dubois, Ping Jia
-
Patent number: 11832927Abstract: A method includes placing a set of electrodes on a body surface of a patient's body. The method also includes digitizing locations for the electrodes across the body surface based on one or more image frames using range imaging and/or monoscopic imaging. The method also includes estimating locations for hidden ones of the electrodes on the body surface not visible during the range imaging and/or monoscopic imaging. The method also includes registering the location for the electrodes on the body surface with predetermined geometry information that includes the body surface and an anatomical envelope within the patient's body. The method also includes storing geometry data in non-transitory memory based on the registration to define spatial relationships between the electrodes and the anatomical envelope.Type: GrantFiled: October 14, 2021Date of Patent: December 5, 2023Assignee: CARDIOINSIGHT TECHNOLOGIES INC.Inventors: Glenn D. Raudins, Qingguo Zeng, Charulatha Ramanathan, Ryan M. Bokan
-
Patent number: 11826148Abstract: Systems and methods are disclosed to determine one or more sensing zones on a body surface for electrocardiographic mapping of a region of interest associated with the heart. The sensing zone can be utilized to facilitate acquisition, processing and mapping of electrical activity for the corresponding region of interest. In other examples, an application-specific arrangement of electrodes can also be provided based on the sensing zone that is determined for the region of interest.Type: GrantFiled: December 6, 2021Date of Patent: November 28, 2023Assignee: CARDIOINSIGHT TECHNOLOGIES INC.Inventors: Ping Jia, Charulatha Ramanathan, Maria Strom, Brian P. George, Lalita Bhetwal, Harold Wodlinger, Jonathan D. Small
-
Patent number: 11666242Abstract: An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.Type: GrantFiled: February 11, 2020Date of Patent: June 6, 2023Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Ping Jia, Qingguo Zeng, Charulatha Ramanathan, Ryan Bokan
-
Patent number: 11576604Abstract: Systems and methods can be used to provide an indication of heart function, such as an indication of mechanical function or hemodynamics of the heart, based on electrical data. For example, a method for assessing a function of the heart can include determining a time-based electrical characteristic for a plurality of points distributed across a spatial region of the heart. The plurality of points can be grouped into at least two subsets of points based on at least one of a spatial location for the plurality of points or the time-based electrical characteristics for the plurality of points. An indication of synchrony for the heart can be quantified based on relative analysis of the determined time-based electrical characteristic for each of the at least two subsets of points.Type: GrantFiled: May 8, 2020Date of Patent: February 14, 2023Assignee: CARDIOINSIGHT TECHNOLOGIES INC.Inventors: Charulatha Ramanathan, Harold Wodlinger, Maria Strom, Steven G. Arless, Ping Jia
-
Patent number: 11324433Abstract: A method can include storing input electrical signal data representing at least a given electrophysiological signal acquired from a patient. A non-local mean filter can be applied to the given electrophysiological signal, the non-local mean filter including a spatial filter component and an intensity filter component. The method can also include controlling parameters to establish weighting of each of the spatial filter component and the intensity filter component in response to a control input. Filtered signal data can be stored based on the applying and the controlling.Type: GrantFiled: April 27, 2018Date of Patent: May 10, 2022Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Qingguo Zeng, Venkatesh Vasudevan, Charulatha Ramanathan, Ping Jia
-
Patent number: 11284830Abstract: An example method includes analyzing morphology and/or amplitude of each of a plurality of electrophysiological signals across a surface of a patient's body to identify candidate segments of each signal satisfying predetermined conduction pattern criteria. The method also includes determining a conduction timing parameter for each candidate segment in each of the electrophysiological signals.Type: GrantFiled: January 28, 2020Date of Patent: March 29, 2022Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Qing Lou, Meredith E. Stone, Qingguo Zeng, Jeffrey B. Adair, Connor S. Edel, Ping Jia, Kevin R. Ponziani, Brian P. George, Ryan M. Bokan, Matthew J. Sabo, Vladimir A. Turovskiy, Ketal C. Patel, Charulatha Ramanathan
-
Publication number: 20220087589Abstract: Systems and methods are disclosed to determine one or more sensing zones on a body surface for electrocardiographic mapping of a region of interest associated with the heart. The sensing zone can be utilized to facilitate acquisition, processing and mapping of electrical activity for the corresponding region of interest. In other examples, an application-specific arrangement of electrodes can also be provided based on the sensing zone that is determined for the region of interest.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Inventors: PING JIA, CHARULATHA RAMANATHAN, MARIA STROM, BRIAN P. GEORGE, LALITA BHETWAL, HAROLD WODLINGER, JONATHAN D. SMALL
-
Publication number: 20220036583Abstract: A method includes placing a set of electrodes on a body surface of a patient's body. The method also includes digitizing locations for the electrodes across the body surface based on one or more image frames using range imaging and/or monoscopic imaging. The method also includes estimating locations for hidden ones of the electrodes on the body surface not visible during the range imaging and/or monoscopic imaging. The method also includes registering the location for the electrodes on the body surface with predetermined geometry information that includes the body surface and an anatomical envelope within the patient's body. The method also includes storing geometry data in non-transitory memory based on the registration to define spatial relationships between the electrodes and the anatomical envelope.Type: ApplicationFiled: October 14, 2021Publication date: February 3, 2022Inventors: GLENN D. RAUDINS, QINGGUO ZENG, CHARULATHA RAMANATHAN, RYAN M. BOKAN
-
Patent number: 11224374Abstract: Systems and methods are disclosed to determine one or more sensing zones on a body surface for electrocardiographic mapping of a region of interest associated with the heart. The sensing zone can be utilized to facilitate acquisition, processing and mapping of electrical activity for the corresponding region of interest. In other examples, an application-specific arrangement of electrodes can also be provided based on the sensing zone that is determined for the region of interest.Type: GrantFiled: December 20, 2016Date of Patent: January 18, 2022Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Ping Jia, Charulatha Ramanathan, Maria Strom, Brian P. George, Lalita Bhetwal, Harold Wodlinger, Jonathan D. Small
-
Patent number: 11179054Abstract: A method includes placing a set of electrodes on a body surface of a patient's body. The method also includes digitizing locations for the electrodes across the body surface based on one or more image frames using range imaging and/or monoscopic imaging. The method also includes estimating locations for hidden ones of the electrodes on the body surface not visible during the range imaging and/or monoscopic imaging. The method also includes registering the location for the electrodes on the body surface with predetermined geometry information that includes the body surface and an anatomical envelope within the patient's body. The method also includes storing geometry data in non-transitory memory based on the registration to define spatial relationships between the electrodes and the anatomical envelope.Type: GrantFiled: July 12, 2018Date of Patent: November 23, 2021Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Glenn D. Raudins, Qingguo Zeng, Charulatha Ramanathan, Ryan M. Bokan
-
Patent number: 11131536Abstract: This disclosure relates to localization and tracking of an object. As one example, measurement data can be stored in memory to represent measured electrical signals at each of a plurality of known measurement locations in a given coordinate system in response to an applied signal at an unknown location in the given coordinate system. A dipole model cost function has parameters representing a dipole location and moment corresponding to the applied signal. A boundary condition can be imposed on the dipole model cost function. The unknown location in the given coordinate system, corresponding to the dipole location, can then be determined based on the stored measurement data and the dipole model cost function with the boundary condition imposed thereon.Type: GrantFiled: May 17, 2019Date of Patent: September 28, 2021Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Qingguo Zeng, Ping Jia, Charulatha Ramanathan, Lijun Yu, Jeff Burrell, Brian George, Qing Lou, Ryan Bokan, Soniya Bhojwani
-
Patent number: 10806359Abstract: One or more non-transitory computer-readable media have instructions executable by a processor and programmed to perform a method. The method includes analyzing the electrical data to locate one or more wave front lines over a given time interval. The electrical data represents electrophysiological signals distributed across a cardiac envelope for one or more time intervals. A respective trajectory is determined for each wave end of each wave front line that is located across the cardiac envelope over the given time interval. A set of connected trajectories are identified based on a duration that the trajectories are connected to each other by a respective wave front line during the given time interval. A connectivity association is characterized for the trajectories in the set of connected trajectories.Type: GrantFiled: April 27, 2017Date of Patent: October 20, 2020Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Qingguo Zeng, Qing Lou, Ryan M. Bokan, Ping Jia, Connor S. Edel, Charulatha Ramanathan
-
Publication number: 20200260978Abstract: Systems and methods can be used to provide an indication of heart function, such as an indication of mechanical function or hemodynamics of the heart, based on electrical data. For example, a method for assessing a function of the heart can include determining a time-based electrical characteristic for a plurality of points distributed across a spatial region of the heart. The plurality of points can be grouped into at least two subsets of points based on at least one of a spatial location for the plurality of points or the time-based electrical characteristics for the plurality of points. An indication of synchrony for the heart can be quantified based on relative analysis of the determined time-based electrical characteristic for each of the at least two subsets of points.Type: ApplicationFiled: May 8, 2020Publication date: August 20, 2020Inventors: CHARULATHA RAMANATHAN, HAROLD WODLINGER, MARIA STROM, STEVEN G. ARLESS, PING JIA
-
Patent number: 10682066Abstract: Systems and methods can be used to provide an indication of heart function, such as an indication of mechanical function or hemodynamics of the heart, based on electrical data. For example, a method for assessing a function of the heart can include determining a time-based electrical characteristic for a plurality of points distributed across a spatial region of the heart. The plurality of points can be grouped into at least two subsets of points based on at least one of a spatial location for the plurality of points or the time-based electrical characteristics for the plurality of points. An indication of synchrony for the heart can be quantified based on relative analysis of the determined time-based electrical characteristic for each of the at least two subsets of points.Type: GrantFiled: November 7, 2017Date of Patent: June 16, 2020Assignee: CARDIOINSIGHT TECHNOLOGIES, INC.Inventors: Charulatha Ramanathan, Harold Wodlinger, Maria Strom, Steven G. Arless, Ping Jia
-
Publication number: 20200170540Abstract: An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.Type: ApplicationFiled: February 11, 2020Publication date: June 4, 2020Inventors: PING JIA, QINGGUO ZEN, CHARULATHA RAMANATHAN, RYAN BOKAN
-
Publication number: 20200163570Abstract: An example method includes analyzing morphology and/or amplitude of each of a plurality of electrophysiological signals across a surface of a patient's body to identify candidate segments of each signal satisfying predetermined conduction pattern criteria. The method also includes determining a conduction timing parameter for each candidate segment in each of the electrophysiological signals.Type: ApplicationFiled: January 28, 2020Publication date: May 28, 2020Inventors: QING LOU, MEREDTH E. STONE, QINGGUO ZENG, JEFFREY B. ADAIR, CONNOR S. EDEL, PING JIA, KEVIN R. PONZIANI, BRIAN P. GEORGE, RYAN M. BOKAN, MATTHEW J. SABO, VLADIMIR A. TUROVSKIY, KETAL C. PATEL, CHARULATHA RAMANATHAN
-
Publication number: 20200093444Abstract: A map generator can be programmed to generate a multi-parameter graphical map by encoding at least two different physiological parameters for a geometric surface, corresponding to tissue of a patient, using different color components of a multi-dimensional color model such that each of the different physiological parameters is encoded by at least one of the different color components.Type: ApplicationFiled: October 21, 2019Publication date: March 26, 2020Inventors: QINGGUO ZENG, CHARULATHA RAMANATHAN, VENKATESH VASUDEVAN, RÉMI DUBOIS, PING JIA