Patents by Inventor Meir Bar Tal

Meir Bar Tal 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: 20250221765
    Abstract: Methods and systems provide lesion size assessments to be ablated into tissue, such as cardiac tissue. The lesion sized assessments are based on parameters including blood conductivity, hot-spot-temperature, catheter tip temperature, and current data of the Radiofrequency (RF) ablation energy being used, such as power, duration, temperature, irrigation and contact force.
    Type: Application
    Filed: January 2, 2025
    Publication date: July 10, 2025
    Inventors: Meir Bar-Tal, Alona Sigal, Abraham Berger, Ori Emanuel Hazan, Daniel Osadchy, Liron Shmuel Mizrahi
  • Patent number: 12352905
    Abstract: A system for use with ultrasound transducers on a catheter and connected to different respective channels includes circuitry and a processor. The circuitry is configured to receive a signal, which includes transduction of ultrasound reflections, over any given one of the channels, and to receive respective noise-signals, which include less transduction of ultrasound reflections than the signal, over a group of others of the channels. The processor is configured to receive the signal and the noise-signals from the circuitry, and to reduce noise in the signal, by, based on the noise-signals, computing, for the given channel, one or more noise-estimation functions, each of which is applicable to a respective subset of the noise-signals so as to return an estimate of noise received over the given channel while the subset of the noise-signals were received, using the noise-estimation functions, computing an estimated-noise signal, and subtracting the estimated-noise signal from the signal.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: July 8, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Grigoriy Zurakhov, Meir Bar-Tal
  • Patent number: 12350073
    Abstract: A method is provided. The method is implemented by a mapping engine. The method includes receiving biometric data of at least a portion of an anatomical structure from at least a catheter and analyzing the biometric data based on an automatic tagging operation, a time weighted local activation time assignment operation, or a discrimination operation. The method also includes determining scar tissue of the portion of the anatomical structure based on the analyzing of the biometric data.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: July 8, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Avram Dan Montag, Meir Bar-Tal
  • Publication number: 20250185969
    Abstract: A catheter for electrophysiology applications is disclosed herein that includes a tubular member and an end effector. The end effector is coupled to a distal portion of the tubular member which as a cross-section intersecting first and second orthogonal planes extending along a longitudinal axis. The end effector includes first, second, and third loop members and has an unconstrained configuration in which the first and second loop members respectively define planar surfaces which each intersect the first and second orthogonal planes and the third loop member defines a planar surface that intersects only one of the first and second orthogonal planes.
    Type: Application
    Filed: February 19, 2025
    Publication date: June 12, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Thomas V. SELKEE, Keshava DATTA, Thanh NGUYEN, Anand RAO, Rajesh PENDEKANTI, Meir BAR-TAL, Ricardo PADILLA
  • Publication number: 20250177055
    Abstract: The disclosed technology includes medical probe that includes an elongated shaft, a guidewire, coils, and electrodes. The elongated shaft extends along a longitudinal axis and is dimensioned to be inserted into a vein of Marshall. The guidewire extends through a lumen in the elongated shaft. The coils are connected to the distal dip of the elongated shaft and each coil is configured to generate a current when subjected to a magnetic field, the current being indicative of a position of the respective coil. The electrodes are connected to the distal tip. Each electrode is designed to (i) sense anatomical signals in the vein of Marshall and provide electrical signals which are indicative of the anatomical signals or (ii) convey ablation energy to a target tissue region proximal the vein of Marshall.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 5, 2025
    Inventors: Paul SUAREZ, Debby HIGHSMITH, Kokou Anani Mawuena AMEFIA, Meir BAR-TAL, Abraham BERGER
  • Publication number: 20250169765
    Abstract: A system and method are disclosed. The system and method include obtaining respiration data of a patient via at least one sensor, obtaining probe location data for a probe positioned within a cavity, generating probe-cavity location data by compensating the respiration data from the probe location data, identifying periods when the probe is stable relative to a cavity boundary based on the probe-cavity location data, and capturing data based on generated probe-cavity location during identified periods to produce mapping.
    Type: Application
    Filed: November 29, 2023
    Publication date: May 29, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Alona Sigal, Aharon Turgeman, Meir Bar-Tal, Ben Ami Novogrodsky, Erez Silberschein
  • Publication number: 20250160716
    Abstract: A position sensor includes a flexible substrate formed into a three-dimensional (3D) shape. At least first and second field-sensing coils are formed in first and second respective layers of the flexible substrate, such that in the 3D shape the first and second field-sensing coils have first and second respective axes that are not parallel to one another.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Inventors: Assaf Govari, Meir Bar-Tal, Avi Reuveni
  • Publication number: 20250160752
    Abstract: Catheterization of the heart is carried out using a framework formed by a plurality of electrically conducting wire loops. The wire loops are modeled as polygons, each subdivided into a plurality of triangles. The wire loops are exposed to magnetic fluxes at respective frequencies, and signals read from the loops. Theoretical magnetic fluxes in the polygons are computed as sums of theoretical magnetic fluxes in the triangles thereof. The location and orientation of the framework in the heart is determined by relating the computed theoretical magnetic fluxes to the signals.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Avram Dan MONTAG, Meir BAR-TAL
  • Publication number: 20250160945
    Abstract: An expandable balloon, which is coupled to a distal end of a shaft for insertion into an organ of a patient, includes an expandable membrane, one or more electrodes and one or more respective conductive coils. The one or more electrodes are disposed over an external surface of the membrane. The one or more respective conductive coils are each disposed proximate a respective RF ablation electrode. The one or more conductive coils are configured as magnetic sensors.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Inventor: Meir Bar-Tal
  • Publication number: 20250127449
    Abstract: A method is provided. The method is implemented by a mapping engine stored as program code on a memory and executed by a processor. The method include subdividing an anatomical mesh of a part of an anatomical structure to one or more other meshes of the anatomical structure. The one or more other meshes are more granular than the anatomical mesh. The method includes interpolating local activation time values and velocity values for the one or more other meshes and tracing a path of velocity vectors on the one or more other meshes in accordance with the interpolation of the local activation time values and velocity values. The method also includes projecting the path on the anatomical mesh to provide an enhanced visualization of the anatomical structure.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 24, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Avram Dan Montag, Meir Bar-Tal
  • Publication number: 20250125053
    Abstract: A method includes, in a processor, receiving example representations of geometrical shapes of a given type of organ. In a training phase, a neural network model is trained using the example representations. In a modeling phase, the trained neural network model is applied to a set of location measurements acquired in an organ of the given type, to produce a three-dimensional model of the organ.
    Type: Application
    Filed: October 16, 2024
    Publication date: April 17, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Alon Baram, Meir Bar-Tal
  • Patent number: 12251224
    Abstract: A catheter for electrophysiology applications is disclosed herein that includes a tubular member and an end effector. The end effector is coupled to a distal portion of the tubular member. The end effector includes first, second, and third loop members configured so that the first loop member defines a first plane, the second loop member defines a second plane at an angle to the first plane, and the third loop member defines a third plane at an angle to the first plane and at an angle to the second plane. Each of the first, second, and third loop members are configured as a respective single axis magnetic coil, and the first, second, and third loop members are collectively configured to function as a three axis magnetic sensor.
    Type: Grant
    Filed: November 10, 2023
    Date of Patent: March 18, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Thomas V. Selkee, Keshava Datta, Thanh Nguyen, Anand Rao, Rajesh Pendekanti, Meir Bar-Tal, Ricardo Padilla
  • Publication number: 20250082396
    Abstract: The disclosed technology includes an end effector for a medical probe. The end effector can comprise an expandable distal end assembly extending along a longitudinal axis. The expandable distal end assembly can extend radially outward from the longitudinal axis and define an outer diameter. The end effector can further comprise a distal tip extending distally from the expandable distal end assembly along the longitudinal axis over a tip length greater than the outer diameter. The distal tip can be fixed longitudinally in relation to the expandable distal end assembly and be deflectable with respect to the longitudinal axis. The tip can comprise an electrode configured to deliver ablative energy to tissue or receive signals from tissue.
    Type: Application
    Filed: August 6, 2024
    Publication date: March 13, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Meir BAR-TAL, Cuong PHAM, Thanh NGUYEN, Keshava DATTA, Dror BERMAN, Kate QUACH, Anand RAO
  • Publication number: 20250082383
    Abstract: The disclosed technology includes an actuator subsystem for a medical probe, including an actuator, a detent, and at least one catch. The actuator is designed to move an end effector between expanded and collapsed configuration. As the actuator is moved, the catches, in conjunction with the detent, provide tactile feedback regarding a position of an end effector of the medical device.
    Type: Application
    Filed: August 6, 2024
    Publication date: March 13, 2025
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Dror BERMAN, Meir BAR-TAL, Keshava DATTA, Arlene ZAVALA, Thanh NGUYEN, Cuong PHAM
  • Patent number: 12239447
    Abstract: A position sensor includes a flexible substrate formed into a three-dimensional (3D) shape. At least first and second field-sensing coils are formed in first and second respective layers of the flexible substrate, such that in the 3D shape the first and second field-sensing coils have first and second respective axes that are not parallel to one another.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: March 4, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Assaf Govari, Meir Bar-Tal, Avi Reuveni
  • Patent number: 12232804
    Abstract: An expandable balloon, which is coupled to a distal end of a shaft for insertion into an organ of a patient, includes an expandable membrane, one or more electrodes and one or more respective conductive coils. The one or more electrodes are disposed over an external surface of the membrane. The one or more respective conductive coils are each disposed proximate a respective RF ablation electrode. The one or more conductive coils are configured as magnetic sensors.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: February 25, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventor: Meir Bar-Tal
  • Publication number: 20250062068
    Abstract: Electric components including coils and methods to fabricate the same by 3D-printing are disclosed. The method includes: 3D printing a magnetic material to form a magnetic channel comprising a magnetic core of the coil device; 3D printing a conductive material to form a conductive channel, including conductive windings of the coil device with turns surrounding the magnetic core; and 3D printing a non-magnetic electrically insulating material to form electrical insulation between the turns of the conductive windings of the coil device. In some embodiments functional structures of the electric component, including the turns of the conductive windings of the coil and the electrical insulation between the turns, are each printed with minimal in-layer feature size of at least two voxels of the 3D-printing. Some embodiments facilitate 3D-printing of flattened coil devices having low aspect ratio between their lengths along their magnetic axes and their widths perpendicular thereto.
    Type: Application
    Filed: August 16, 2024
    Publication date: February 20, 2025
    Inventors: Nathanel Yehuda David Hayat, Shemer Shmaryau Berkowitz, Barry Neal Breen, Meir Bar-Tal, Daniel Zohar, Avraham Cohen
  • Publication number: 20250057440
    Abstract: Magnetic field sensors and methods for 3D-printing of the same are disclosed. The magnetic field sensor includes a monolithic body with a plurality of coils 3D-printed therein by successive printing of layers along a printing direction; the coils include longitudinally oriented coil(s) whose magnetic axe(s) are parallel to the printing direction and transversely oriented coil(s) whose magnetic axe(s) are perpendicular to the printing direction. The transversely oriented coil(s) is each 3D-printed with a magnetic channel that curves between a pair of opposite flux collection facets being perpendicular to its magnetic axis, such that it includes a magnetic core section extending along the printing direction. Each of the longitudinally and transversely oriented coils is 3D-printed with respective arrangement of conductive windings including a plurality of turns 3D-printed in planes of the 3D-printed layers.
    Type: Application
    Filed: August 16, 2024
    Publication date: February 20, 2025
    Inventors: Nathanel Yehuda David Hayat, Shemer Shmaryau Berkowitz, Barry Neal Breen, Meir Bar-Tal, Daniel Zohar, Avraham Cohen
  • Patent number: 12226235
    Abstract: Classification of heartbeats based on intracardiac and body surface electrocardiogram (ECG) signals are provided. Intracardiac ECG (IC-ECG) signals and body surface ECG (BS-ECG) signals are processed to perform heartbeat classifications. A BS annotation of BS-ECG signals reflective of a sensed heartbeat is defined, the BS annotation including a BS annotation time value. IC annotations of IC-ECG signals which reflect atrial-activity or ventricular activity of the sensed heartbeat are also defined, each IC annotation including an IC annotation time value. The IC-ECG signals are discriminated as A-activity or V-activity and IC annotations are designated as IC-A annotations or IC-V annotations, respectively. A respective A/V time sequence comparison of IC annotations reflective of the sensed heartbeat is made with one or more time sequence templates for heartbeat classification.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: February 18, 2025
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Vladimir Rubinstein, Meir Bar-Tal
  • Patent number: 12220260
    Abstract: Catheterization of the heart is carried out using a framework formed by a plurality of electrically conducting wire loops. The wire loops are modeled as polygons, each subdivided into a plurality of triangles. The wire loops are exposed to magnetic fluxes at respective frequencies, and signals read from the loops. Theoretical magnetic fluxes in the polygons are computed as sums of theoretical magnetic fluxes in the triangles thereof. The location and orientation of the framework in the heart is determined by relating the computed theoretical magnetic fluxes to the signals.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: February 11, 2025
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Avram Dan Montag, Meir Bar-Tal