Patents by Inventor Doron Moshe Ludwin
Doron Moshe Ludwin 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).
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Patent number: 11877840Abstract: An apparatus includes an interface and a processor. The interface is configured for exchanging signals with: (i) a probe, which is inserted into a body of a patient and includes a flexible distal-end assembly, wherein the distal-end assembly comprises a magnetic position sensor and two or more intra-body electrodes, and, (ii) multiple body-surface electrodes attached externally to the body of the patient. The processor is configured to estimate, based on the signals exchanged with the probe, a spatial displacement of the magnetic sensor between consecutive measurements, and to estimate a position of the distal-end assembly in the body based on (i) the signals exchanged with the intra-body electrodes and the body-surface electrodes, (ii) a-priori known spatial relationships between two or more of the intra-body electrodes of the probe and (iii) the estimated spatial displacement of the magnetic sensor.Type: GrantFiled: May 29, 2018Date of Patent: January 23, 2024Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Doron Moshe Ludwin, Gal Fleishon, Meir Bar-Tal, Goren Cohn, Menachem Schechter, Daniel Osadchy
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Patent number: 11771407Abstract: A probe having a contact force sensor is inserted into a cardiac chamber and an image of the blood pool is generated. A portion of the blood pool is removed from the image to retain a remaining portion of the blood pool. A determination is made that the distal segment of the probe is within the remaining portion of the blood pool, and responsively to the determination the contact force sensor is manually zeroed.Type: GrantFiled: May 8, 2019Date of Patent: October 3, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Natan Sharon Katz, Aharon Turgeman, Doron Moshe Ludwin, Ronen Krupnik
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Patent number: 11382530Abstract: In a flexible catheterization probe a resilient member couples the tip to the distal portion of the probe and is configured to deform in response to pressure exerted on the tip when engaging tissue. A position sensor in the distal portion of the probe senses the position of the tip relative to the distal portion of the probe. The relative position changes in response to deformation of the resilient member. The position sensor generates a signal indicative of the position of the tip responsively to a magnetic field produced by a magnetic field generator located in the position sensor. The position sensor has a first coil of conductive wire having first windings, and three second coils of conductive wire having respective second windings. The second coils are symmetrically distributed about the longitudinal axis of the first coil.Type: GrantFiled: July 8, 2019Date of Patent: July 12, 2022Assignee: Biosense Webster (Israel) Ltd.Inventors: Yevgeny Bonyak, Dror Shlomo Levy, Doron Moshe Ludwin, Eitan Moshe Saba, Meir Bar-Tal
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Patent number: 11033201Abstract: A method uses multiple patches fixed to a surface of a body, the patches including respective electrodes in contact with the surface, and at least one of the patches configured to output a signal in response to a magnetic field applied to the body. Initially, the signal is processed to compute first magnetic and first electrical locations of the at least one of the patches. Subsequently, the signal is processed to compute second magnetic and second electrical locations of the at least one of the patches. A first relation is computed between the first magnetic and electrical locations, and a second relation is computed between the second magnetic and electrical locations. When there is a difference between the first and the second relations, a magnetic location correction is computed responsively to the difference, and the correction is applied in tracking a position of a magnetic tracking sensor inside the body.Type: GrantFiled: August 4, 2016Date of Patent: June 15, 2021Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Doron Moshe Ludwin, Eitan Peri, Aharon Turgeman, Avigdor Rosenberg, Menachem Schechter
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Patent number: 11006853Abstract: A method uses patches fixed to a surface of a body, the patches including respective electrodes in contact with the surface, and at least one of the patches configured to output a signal in response to a magnetic field applied to the body. Initially, the signal is processed to compute first magnetic locations and first electrical locations of the at least one of the patches. Subsequently, the signal is processed to compute second magnetic locations and second electrical locations of the at least one of the patches. A first relation is computed between the first magnetic and the first electrical locations, a second relation is computed between the second magnetic and the second electrical locations, and upon detecting a difference between the second and the first relations, a magnetic location correction is computed and then applied to track a position of a magnetic sensor inside the body.Type: GrantFiled: August 4, 2016Date of Patent: May 18, 2021Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Doron Moshe Ludwin, Eitan Peri, Eliahu Zino, Meir Bar-Tal, Shaul Haim Raz
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Patent number: 10994097Abstract: Apparatus, consisting of a probe, having a proximal end and a distal end, which is deflectable in first and second directions. The apparatus includes a probe manipulator, which is coupled to the proximal end of the probe and has first and second tactile control elements. The elements are operable by a user of the probe to deflect the distal end in the first and second directions, respectively, and are tactilely distinguishable one from the other.Type: GrantFiled: April 6, 2018Date of Patent: May 4, 2021Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Doron Moshe Ludwin, Dror Levy, Yevgeny Bonyak, Mark Stanley
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Patent number: 10966786Abstract: A method for performing a medical procedure, includes coupling a tip of a probe to tissue in an organ of a patient in order to apply the medical procedure using the probe. A force exerted by the tip on the tissue and a displacement of the tip created by the force are measured. A dependence of the force on the displacement is calculated. Based on the calculated dependence, a risk level of perforation of the tissue is estimated.Type: GrantFiled: July 27, 2017Date of Patent: April 6, 2021Assignee: Biosense Webster (Israel) Ltd.Inventors: Doron Moshe Ludwin, Eitan Peri, Eyal Yechezkel Glottmann, Yevgeny Bonyak, Aharon Turgeman
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Patent number: 10932876Abstract: A haptic feedback device receives a signal reflecting pressure exerted by a medical tool against an anatomical surface. A fastener secures the feedback device to, for example, a wrist of an operator. A haptic exertion component exerts haptic stimulation to the operator based on the received signal such that when the received signal reflects a pressure being exerted by the medical tool against the anatomical surface of a patient is in a defined range for operation of the medical tool, the exertion component exerts haptic stimulation at a predetermined level that indicates pressure of the medical tool is being exerted in the defined range. Otherwise, the exertion component does not exert a level of haptic stimulation that is equal to or more than the predetermined level or the exertion component exerts a level of haptic stimulation to the operator that is more than the predetermined level.Type: GrantFiled: August 30, 2018Date of Patent: March 2, 2021Assignee: Biosense Webster (Israel) Ltd.Inventors: Dror Shlomo Levy, Yevgeny Bonyak, Boris Ashkinezer, Oleg Dulger, Doron Moshe Ludwin, Moshe Ingel
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Publication number: 20200155230Abstract: A gap between a plurality of ablation sites in a heart that hinders electrical propagation therethrough is found by projecting the locations of the sites in a 3-dimensional coordinate system onto a simulation plane, identifying a set of shortest 3-dimensional paths that correspond to 2-dimensional connections between pairs of the projected locations of the sites, and reporting a gap as a longest one of the set.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Inventors: Etan Saba, David Izraeli, Meir Bar-Tal, Doron Moshe Ludwin
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Patent number: 10588692Abstract: A gap between a plurality of ablation sites in a heart that hinders electrical propagation therethrough is found by projecting the locations of the sites in a 3-dimensional coordinate system onto a simulation plane, identifying a set of shortest 3-dimensional paths that correspond to 2-dimensional connections between pairs of the projected locations of the sites, and reporting a gap as a longest one of the set.Type: GrantFiled: September 19, 2016Date of Patent: March 17, 2020Assignee: Biosense Webster (Israel) Ltd.Inventors: Eitan Moshe Saba, David Izraeli, Meir Bar-Tal, Doron Moshe Ludwin
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Patent number: 10555672Abstract: A method, including pressing a distal end of a medical probe against a wall of a body cavity, and receiving from the probe first measurements of a force exerted by the distal end on the wall. The method also includes receiving from the probe second measurements indicating a displacement of the wall in response to the force. The method further includes estimating a thickness of the wall based on the first and the second measurements.Type: GrantFiled: August 16, 2017Date of Patent: February 11, 2020Assignee: Biosense Webster (Israel) Ltd.Inventors: Doron Moshe Ludwin, Assaf Govari, Aharon Turgeman, Yohai Makbily, Eliahu Zino
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Publication number: 20190365278Abstract: An apparatus includes an interface and a processor. The interface is configured for exchanging signals with: (i) a probe, which is inserted into a body of a patient and includes a flexible distal-end assembly, wherein the distal-end assembly comprises a magnetic position sensor and two or more intra-body electrodes, and, (ii) multiple body-surface electrodes attached externally to the body of the patient. The processor is configured to estimate, based on the signals exchanged with the probe, a spatial displacement of the magnetic sensor between consecutive measurements, and to estimate a position of the distal-end assembly in the body based on (i) the signals exchanged with the intra-body electrodes and the body-surface electrodes, (ii) a-priori known spatial relationships between two or more of the intra-body electrodes of the probe and (iii) the estimated spatial displacement of the magnetic sensor.Type: ApplicationFiled: May 29, 2018Publication date: December 5, 2019Inventors: Doron Moshe Ludwin, Gal Fleishon, Meir Bar-Tal, Goren Cohn, Menachem Schechter, Daniel Osadchy
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Publication number: 20190350489Abstract: A method includes, in a processor, receiving position signals that are indicative of positions of (i) multiple electrodes disposed on an inflatable balloon fitted at a distal end of a catheter, and (ii) first and second electrodes fitted on a shaft of the catheter, on either side of the balloon. The positions of the multiple electrodes disposed on the balloon are calculated based on the received position signals and based on a known distance between the first and second electrodes.Type: ApplicationFiled: May 21, 2018Publication date: November 21, 2019Inventors: Doron Moshe Ludwin, Avigdor Rosenberg, Aharon Turgeman, Michael Maydel
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Publication number: 20190328273Abstract: In a flexible catheterization probe a resilient member couples the tip to the distal portion of the probe and is configured to deform in response to pressure exerted on the tip when engaging tissue. A position sensor in the distal portion of the probe senses the position of the tip relative to the distal portion of the probe. The relative position changes in response to deformation of the resilient member. The position sensor generates a signal indicative of the position of the tip responsively to a magnetic field produced by a magnetic field generator located in the position sensor. The position sensor has a first coil of conductive wire having first windings, and three second coils of conductive wire having respective second windings. The second coils are symmetrically distributed about the longitudinal axis of the first coil.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Yevgeny Bonyak, Dror Shlomo Levy, Doron Moshe Ludwin, Eitan Moshe Saba, Meir Bar-Tal
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Publication number: 20190307511Abstract: An apparatus includes a shaft, a flexible distal-end assembly, two or more sensing-electrodes, and a fiber-optic shape sensor. The shaft is configured for insertion into a body of a patient. The flexible distal-end assembly is fitted at a distal end of the shaft. The two or more sensing-electrodes are disposed over the distal-end assembly and are configured to generate signals indicative of positions of the sensing-electrodes in the body. The fiber-optic shape sensor is coupled to a portion of the distal-end assembly, wherein the two or more sensing-electrodes have a-priori known distances from a known location over the fiber-optic shape sensor, and wherein the fiber-optic shape sensor is configured to provide an indication of a spatial deformation of the flexible distal-end assembly.Type: ApplicationFiled: April 10, 2018Publication date: October 10, 2019Inventors: Doron Moshe Ludwin, Goren Cohn, Tamir Avraham Yellin, Gal Fleishon, Menachem Schechter
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Publication number: 20190261969Abstract: A probe having a contact force sensor is inserted into a cardiac chamber and an image of the blood pool is generated. A portion of the blood pool is removed from the image to retain a remaining portion of the blood pool. A determination is made that the distal segment of the probe is within the remaining portion of the blood pool, and responsively to the determination the contact force sensor is manually zeroed.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventors: Natan Sharon Katz, Aharon Turgeman, Doron Moshe Ludwin, Ronen Krupnik
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Patent number: 10383543Abstract: In a flexible catheterization probe a resilient member couples the tip to the distal portion of the probe and is configured to deform in response to pressure exerted on the tip when engaging tissue. A position sensor in the distal portion of the probe senses the position of the tip relative to the distal portion of the probe. The relative position changes in response to deformation of the resilient member. The position sensor generates a signal indicative of the position of the tip responsively to a magnetic field produced by a magnetic field generator located in the position sensor. The position sensor has a first coil of conductive wire having first windings, and three second coils of conductive wire having respective second windings. The second coils are symmetrically distributed about the longitudinal axis of the first coil.Type: GrantFiled: November 11, 2015Date of Patent: August 20, 2019Assignee: Biosense Webster (Israel) Ltd.Inventors: Yevgeny Bonyak, Dror Shlomo Levy, Doron Moshe Ludwin, Eitan Moshe Saba, Meir Bar-Tal
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Publication number: 20190201151Abstract: A haptic feedback device receives a signal reflecting pressure exerted by a medical tool against an anatomical surface. A fastener secures the feedback device to, for example, a wrist of an operator. A haptic exertion component exerts haptic stimulation to the operator based on the received signal such that when the received signal reflects a pressure being exerted by the medical tool against the anatomical surface of a patient is in a defined range for operation of the medical tool, the exertion component exerts haptic stimulation at a predetermined level that indicates pressure of the medical tool is being exerted in the defined range. Otherwise, the exertion component does not exert a level of haptic stimulation that is equal to or more than the predetermined level or the exertion component exerts a level of haptic stimulation to the operator that is more than the predetermined level.Type: ApplicationFiled: August 30, 2018Publication date: July 4, 2019Applicant: Biosense Webster (Israel) Ltd.Inventors: Dror Shlomo LEVY, Yevgeny BONYAK, Boris ASHKINEZER, Oleg DULGER, Doron Moshe LUDWIN, Moshe Ingel
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Patent number: 10327744Abstract: A probe having a contact force sensor is inserted into a cardiac chamber and an image of the blood pool is generated. A portion of the blood pool is removed from the image to retain a remaining portion of the blood pool. A determination is made that the distal segment of the probe is within the remaining portion of the blood pool, and responsively to the determination the contact force sensor is manually zeroed.Type: GrantFiled: June 26, 2014Date of Patent: June 25, 2019Assignee: BIOSENSE WEBSTER (ISRAEL) LTDInventors: Natan Sharon Katz, Aharon Turgeman, Doron Moshe Ludwin, Ronen Krupnik
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Patent number: 10307078Abstract: A method, including inserting a catheter having at least one electrode into a chamber of a body organ of a patient and recording at a sequence of times respective sets of currents between the at least one electrode and a plurality of patches positioned on skin of the patient. The method further includes, while recording the sets of currents, acquiring x-ray images of the at least one electrode, and determining locations of the catheter from the images. A relation is derived between the locations and the respective sets of currents based on the sets of currents and the images. The method also includes recording subsequent sets of currents between the at least one electrode and the patches, and determining, based on the relation, subsequent locations of the catheter in response to the subsequent set of currents.Type: GrantFiled: February 13, 2015Date of Patent: June 4, 2019Assignee: BIOSENSE WEBSTER (ISRAEL) LTDInventors: Meir Bar-Tal, Doron Moshe Ludwin