Patents Assigned to Biosense Webster (Israel), Ltd.
  • Patent number: 11185370
    Abstract: A method includes receiving an anatomical mapping that includes multiple measurements acquired at multiple respective locations within an organ of a patient. An estimated surface of the organ is computed based on the measurements. A three-dimensional (3D) shell of the organ, which extends inwards from the estimated surface of the organ and has a predefined thickness, is defined. A quality of the anatomical mapping is estimated based on the measurements whose locations fall within the 3D shell.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 30, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Akram Zoabi, Fady Massarwi
  • Patent number: 11185366
    Abstract: Apparatus, consisting of a probe having a distal end that is configured to be inserted into contact with tissue. An electrode is attached to the distal end, and there is a temperature sensor incorporated in the distal end and configured to output a temperature signal. A radiofrequency (RF) signal generator is configured to apply a pulse of RF electrical energy via the electrode to the tissue, so as to heat the tissue. The apparatus includes processing circuitry that is configured to compute, based on the temperature signal, a rate of temperature change of the distal end following termination of the pulse, and to estimate a thickness of the tissue in response to the rate of temperature change.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: November 30, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Assaf Govari, Israel Zilberman, Andres Claudio Altmann
  • Patent number: 11185274
    Abstract: A position tracking system includes an electrical interface and a processor. The electrical interface is configured to communicate with one or more electrodes that are coupled to a distal end of a probe inserted into a heart of a patient. The electrical interface is further configured to receive, from a plurality of electrode-patches attached to a skin of the patient, position signals that are indicative of positions of the one or more electrodes in the heart. The processor is configured to select, based on the position signals, a partial subset of the electrode-patches whose position signals are least-correlated with one another, and to estimate a position of at least one of the electrodes in the heart, based on the position signals received from the selected partial subset of the electrode-patches.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: November 30, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventor: Assaf Govari
  • Patent number: 11185273
    Abstract: A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 30, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Don K. Nguyen, Qun Sha, Zhong (Jack) Wang, Jamie Lynn Malinaric, Dustin R. Tobey, Shubhayu Basu, Cesar Fuentes-Ortega, Pieter Emmelius Van Niekerk
  • Patent number: 11179198
    Abstract: An ablation catheter adapted for use with a guide wire has a 3-D shaped portion that carries ring electrodes for ablating a vessel or tubular region, including the renal artery. The 3-D shaped portion, for example, a helical portion, enables the ring electrodes to contact an inner surface of the vessel at a plurality of locations at different depths along the vessel to form a conduction block without forming a closed conduction loop which would otherwise increase the risk of stenosis of the vessel. In one embodiment, the catheter has a lumen with entry and exit ports to allow the guide wire to pass through the lumen but bypass the 3-D shaped portion. In another embodiment, the catheter has outer bands providing side tunnels through which the guide wire can pass through.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 23, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Kristine B. Fuimaono, Debby Esther Grunewald
  • Patent number: 11179203
    Abstract: A medical instrument includes a shaft, one or more position sensors, a connector and interrogation circuitry. The shaft is configured for insertion into a body of a patient. The one or more position sensors are fitted at a distal end of the shaft. The connector is configured to receive a mating connector. The interrogation circuitry is configured to detect whether the mating connector is connected to the connector, and, if not connected, to prevent tracking a position of the distal end in the body using the one or more position sensors.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 23, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Assaf Govari, Vadim Gliner, Alon Boumendil
  • Patent number: 11173285
    Abstract: A method for producing a guidewire, the method includes producing a position sensor by providing a shaft-section having a solid profile, which is sized and shaped to move in an anatomical material transportation system. A wire is wound around an axis of the shaft-section and first and second ends of the wire are coupled to respective first and second locations on an outer surface of the shaft-section. A guidewire-shaft is provided, and the position sensor is coupled to a distal end of the guidewire-shaft.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 16, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Yehuda Algawi, Assaf Govari, Ilya Sitnitsky
  • Patent number: 11172984
    Abstract: A method that includes selectively positioning an ablation catheter system at a treatment site; and ablating tissue at the treatment site with the ablation catheter system using a power setting of approximately 90 W applied to tissue for approximately four (4) second increments with a break period of approximately 4 seconds between applications.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: November 16, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Reecha Sharma, Robert B. Stagg, Zhong Wang, Betzi Zafra, Lee Ming Boo, Assaf Govari, Thomas V. Selkee, Christopher Thomas Beeckler, Andres Claudio Altmann, Joseph Thomas Keyes, Athanassios Papaioannou, Kristine B. Fuimaono
  • Patent number: 11173287
    Abstract: A tool positioning system for use in a medical procedure is provided which includes a medical tool configured to be navigated to a target tool location within a portion of an organ of a patient. The medical tool includes a sheath having a tube defined by a sheath wall, the sheath extending a length in a proximal-distal direction and an inflatable balloon coupled to the sheath and configured to move along the length of the sheath in the proximal-distal direction. When the inflatable balloon is inflated at a target balloon location along the length of the sheath, the inflated balloon is fixed at the target balloon location. The tool positioning system also includes memory configured to store location of the tool in a three dimensional (3D) space and at least one processor configured to generate mapping information for displaying locations of the tool in the 3D space.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: November 16, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Shiran Eliyahu, Alaa Zoubi, Assaf Pressman
  • Patent number: 11166645
    Abstract: A magnetic resonance imaging (MRI) visualization method includes identifying a location of a thermally induced lesion in an MRI image by deriving a spatial pattern of MRI pixel values, which represents the lesion as it is expected to appear in the MRI image, as a function of thermal energy applied in creating the lesion. The MRI image is matched with the spatial pattern of pixel values. A local maximum value is found in the matched MRI image, and a location of the local maximum value is presented in the matched MRI image as the location of the lesion.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 9, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventor: Assaf Govari
  • Publication number: 20210338132
    Abstract: Fast recovery electrocardiogram (ECG) signal method and apparatus are provided. In one embodiment, an ECG apparatus includes an input for receiving a biometric cardiogram signal, such as a Wilson Central Terminal (WCT) signal, and a combiner, such as an adder, for producing a compensated signal. Processing circuitry produces an ECG reflective of the compensated signal and also outputs a signal corresponding to high frequency response of the compensated signal to compensate for low response of the biometric cardiogram signal to high frequency spikes. A resultant ECG is produced by the processing circuitry having pacing signal contribution within the biometric cardiogram signal cancelled.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Applicant: Biosense Webster (Israel) Ltd.
    Inventor: Assaf GOVARI
  • Patent number: 11160607
    Abstract: Ablation apparatus is provided. The apparatus includes an ablation electrode shaped to define a cavity thereof, and comprising a metallic distal face that is shaped to define a plurality of apertures. A fluid-delivery channel is configured to deliver fluid to the apertures. At least one ultrasound transducer is disposed within the cavity of the ablation electrode, the transducer being configured to transmit an ultrasound wave through the apertures. Other embodiments are also described.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: November 2, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Christopher Thomas Beeckler, Joseph Thomas Keyes
  • Patent number: 11160481
    Abstract: A method including calculating, at multiple intra-cardiac locations, respective average atrial fibrillation cycle-length (AFCL) values. A determination is made as to whether the calculated average AFCL values are indicative of a regular atrial fibrillation (AF) activity. Gradients between pairs of the average AFCL values are calculated for a plurality of average AFCL values that are determined to be indicative of regular AF activity. The calculated AFCL gradients are presented to a user, overlaid on a map of at least a portion of the heart.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 2, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Ziyad Zeidan, Aharon Turgeman, Benjamin Cohen, Meir Bar-Tal, Tal Haim Bar-on, Carlo Pappone
  • Patent number: 11160485
    Abstract: A method includes storing an anatomical map of at least a portion of a surface of a heart. Respective electrogram (EGM) signal amplitudes measured at respective positions on the surface of the heart are stored. Based on the on the EGM signal amplitudes, defined are: one or more first regions of the surface in which the EGM signal amplitudes are fractionated, and one or more second regions of the surface in which the EGM signal amplitudes are non-fractionated. A first surface representation is generated for the fractionated EGM signal amplitudes in the first regions. Propagation times are extracted from the non-fractionated EGM signal amplitudes in the second regions, and a second surface representation of the propagation times is derived. The first and second surface representations of the respective first and second regions of the surface are simultaneously presented, overlaid on the anatomical map.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: November 2, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Lior Botzer, Eliyahu Ravuna, Netta Dov, Guy Wekselman, Simon Rivron
  • Patent number: 11164371
    Abstract: Described embodiments include a system that includes an electrical interface and a processor. The processor is configured to receive, via the electrical interface, an electrocardiographic signal from an electrode within a heart of a subject, to ascertain a location of the electrode in a coordinate system of a computerized model of a surface of the heart, to select portions of the model responsively to the ascertained location, such that the selected portions are interspersed with other, unselected portions of the model, and to display the model such that the selected portions, but not the unselected portions, are marked to indicate a property of the signal. Other embodiments are also described.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: November 2, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Tamir Avraham Yellin, Roy Urman
  • Patent number: 11160482
    Abstract: A catheter adapted for mapping and/or ablation in the atria has a basket-shaped electrode array with two or more location sensors with a deflectable expander. The catheter comprises a catheter body, a basket electrode assembly at a distal end of the catheter body, and a control handle at a proximal end of the catheter body. The basket electrode assembly has a plurality of electrode-carrying spines and an expander that is adapted for longitudinal movement relative to the catheter body for expanding and collapsing the assembly via a proximal end portion extending past the control handle that can be pushed or pulled by a user. The expander is also adapted for deflection in responsive to an actuator on the control handle that allows a user to control at least one puller wire extending through the catheter body and the expander.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: November 2, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventor: Mario A. Solis
  • Publication number: 20210330379
    Abstract: The subject of this disclosure includes an ablation system for visually supporting a tissue ablation procedure, including a display comprising a user interface; and at least one processor in communication with the display, the at least one processor configured to control one or more of a plurality of electrodes of a radiofrequency balloon catheter to ablate organ tissues of one or more targeted pulmonary veins; determine a characteristic, based on ablation parameters of the radiofrequency balloon catheter, of pulmonary vein isolation (PVI) success rate; and present, on the display, visual information corresponding to each electrode for an indication, based on the characteristic, for PVI success rate.
    Type: Application
    Filed: July 8, 2021
    Publication date: October 28, 2021
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Nader GHALY, Xiangming ZHANG, Eid ADAWI, Moe Habib BISHARA, Kendra Anita MCINNIS, Assaf GOVARI, Christopher Thomas BEECKLER, Joseph Thomas KEYES, Rowan Olund HETTEL, Kevin Justin HERRERA
  • Patent number: 11154352
    Abstract: Apparatus, consisting of a probe with a temperature sensor and a transducer in contact with a living subject's tissue. A power supply delivers electrical power to the transducer for tissue ablation. A controller receives a signal from the temperature sensor and in response outputs a tissue temperature. During a first time period the power supply delivers no more than a first target power to the transducer, and reduces the power when a first maximum allowable temperature of the tissue is exceeded. During a transition time period the power supply delivers no more than a second target power, while reducing the delivered power when the first maximum allowable temperature of the tissue is exceeded. During a second time period the power supply delivers no more than the second target power, while reducing the delivered power when a second maximum allowable temperature, less than the first maximum allowable temperature, is exceeded.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 26, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Assaf Govari, Andres Claudio Altmann, Israel Zilberman
  • Patent number: D936665
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 23, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Ella Ozeri, Andres Claudio Altmann, Assaf Govari
  • Patent number: D937300
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: November 30, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Moshe Ingel, Toam Shemesh