Patents by Inventor Assaf Pressman
Assaf Pressman 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: 11484359Abstract: Described herein is a method and system for gap detection in ablation lines. Microelectrodes are implemented at a distal tip of a catheter to provide localized gap detection along an ablation line. A pacing protocol is used to sequence through each of the microelectrode pairs for a tissue location. If living tissue is present, the pacing signal travels through the living tissue to pulse the heart. An operator will see a capture signal and know that there is a gap in the ablation line. The ablation electrode is then used to ablate the tissue in the gap. Pacing and ablation are therefore performed at the same place without the need to switch between instruments and/or catheters. In an implementation, a force sensor can automate the pacing protocol by determining which microelectrode pair is contacting the tissue. Moreover, signaling between microelectrode pairs can determine contact between the catheter and the tissue.Type: GrantFiled: October 31, 2017Date of Patent: November 1, 2022Assignee: Biosense Webster (Israel) Ltd.Inventors: Dror Berman, Assaf Pressman
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Publication number: 20220054803Abstract: 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: ApplicationFiled: November 5, 2021Publication date: February 24, 2022Applicant: Biosense Webster (Israel) Ltd.Inventors: Shiran Eliyahu, Alaa Zoubi, Assaf Pressman
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Patent number: 11229395Abstract: Catheterization of the heart is carried out by inserting a probe having electrodes into a heart of a living subject, recording a bipolar electrogram and a unipolar electrogram from one of the electrodes at a location in the heart, and defining a window of interest wherein a rate of change in a potential of the bipolar electrogram exceeds a predetermined value. An annotation is established in the unipolar electrogram, wherein the annotation denotes a maximum rate of change in a potential of the unipolar electrogram within the window of interest. A quality value is assigned to the annotation, and a 3-dimensional map is generated of a portion of the heart that includes the annotation and the quality value thereof.Type: GrantFiled: February 5, 2019Date of Patent: January 25, 2022Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Meir Bar-Tal, Richard P. M. Houben, Yaniv Ben Zriham, Assaf Pressman, Roy Urman, Shmuel Auerbach
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Patent number: 11173287Abstract: 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: GrantFiled: December 31, 2018Date of Patent: November 16, 2021Assignee: Biosense Webster (Israel) Ltd.Inventors: Shiran Eliyahu, Alaa Zoubi, Assaf Pressman
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Patent number: 11058496Abstract: A method, including calculating locations of first sensors attached to a probe that has been inserted into a human patient, and calculating positions of second sensors attached to a sheath via which the probe is inserted. The method also includes calculating respective shapes of the probe and the sheath, to achieve a best fit to the calculated probe sensor locations and sheath sensor positions, while restricting the probe to pass through the sheath. The calculated respective shapes of the probe and the sheath are used to present an image of the sheath aligned with the probe.Type: GrantFiled: July 14, 2017Date of Patent: July 13, 2021Assignee: Biosense Webster (Israel) Ltd.Inventors: Shmuel Cohen, Lior Zar, Assaf Pressman, Konstantin Feldman, Daniel Osadchy, Oshrat Ben Zaken, Shiran Eliyahu, Meir Bar-Tal
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Patent number: 10980439Abstract: A method, including recording parameters indicative of a quality of ablation performed at one or more sites in a region of a human heart, and receiving a set of electrophysiological signals indicative of a wave of electrical activation flowing through the region. The method further includes identifying locations within the region at which the wave is blocked from flowing and estimating confidence levels with respect to a blockage of the wave at the locations in response to the signals and the parameters. The method also includes displaying a map of the human heart including an indication of the confidence levels.Type: GrantFiled: August 6, 2014Date of Patent: April 20, 2021Assignee: BIOSENSE WEBSTER (ISRAEL) LTDInventors: Roy Urman, Shmuel Auerbach, Yaniv Ben Zriham, Assaf Pressman, Eliahu Zino
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Patent number: 10973713Abstract: A method for controlling a powered wheelchair is disclosed. The method may comprise receiving first information from at least one user sensor coupled to a user of the wheelchair, said first information indicating the movement of the user; receiving second information from a reference sensor coupled to the wheelchair, said second information indicating the movement of the wheelchair; using the first information and the second information to prepare at least one instruction to move the wheelchair; and using the at least one instruction to move the wheelchair.Type: GrantFiled: June 30, 2015Date of Patent: April 13, 2021Assignee: Rehabilitation Institute of ChicagoInventors: Ferdinando A. Mussa-Ivaldi, Farnaz Abdollahi, Ali Farshchiansadegh, Maura Casadio, Mei-Hua Lee, Jessica Pedersen, Camilla Pierella, Assaf Pressman, Rajiv Ranganathan, Ismael Seanez, Elias Thorp
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Patent number: 10959643Abstract: Described embodiments include apparatus for use with a catheter. The apparatus includes a sheath configured for insertion into a body of a subject, and a sensor, coupled to the sheath, configured to detect an electric current passing through the catheter, when the catheter passes through the sheath and into the body of the subject. Other embodiments are also described.Type: GrantFiled: March 27, 2017Date of Patent: March 30, 2021Assignee: Biosense Webster (Israel) Ltd.Inventors: Daniel Osadchy, Konstantin Feldman, Assaf Pressman, Shmuel Cohen
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Publication number: 20200206479Abstract: 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: ApplicationFiled: December 31, 2018Publication date: July 2, 2020Applicant: Biosense Webster (Israel) Ltd.Inventors: Shiran Eliyahu, Alaa Zoubi, Assaf Pressman
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Patent number: 10631742Abstract: A method, a computer readable media and a hand-held device, the hand-held device may include a first sensor that is positioned such as to be contacted by a first hand of a user when the user holds the hand-held device; a second sensor that is positioned such as to be contacted by a second hand of the user when the user holds the hand-held device; wherein at least one sensor of the first sensor and the second sensor is a hybrid sensor that comprises an electrode, an illumination element and a light detector; and a health monitoring module arranged to process detections signals from the electrode and from the light detector such as to provide processed signals that are indicative of a state of the user.Type: GrantFiled: June 30, 2017Date of Patent: April 28, 2020Assignee: BRAEMAR MANUFACTURING, LLCInventors: Benny Tal, Yair Tal, Assaf Pressman
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Patent number: 10575901Abstract: Described embodiments include an apparatus that includes an electrical interface and a processor. The processor is configured to receive, via the electrical interface, a temperature sensed by a temperature sensor at a distal end of an intrabody probe, to estimate a temperature of tissue of a subject, based on the sensed temperature and a parameter of an ablating current driven, by an ablation electrode at the distal end of the intrabody probe, into the tissue, and to generate an output in response to the estimated temperature. Other embodiments are also described.Type: GrantFiled: December 20, 2016Date of Patent: March 3, 2020Assignee: Biosense Webster (Israel) Ltd.Inventors: Assaf Govari, Andres Claudio Altmann, Assaf Pressman, Dror Berman
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Publication number: 20190343423Abstract: Catheterization is carried out by inserting a sheath into a human patient and moving a catheter having an electrode through the sheath lumen. A variation between a first threshold value and a second threshold value in electrical current through the electrode is identified. Responsively to the variation, it is reported that a portion of the catheter has transitioned between an in-sheath condition and an out-of-sheath condition. The sheath is defined and identified by the historical data of the readings of the magnetic sensor during its movements.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Inventors: Assaf Pressman, Shaul Haim Raz, Avigdor Rosenberg, Dror Berman
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Patent number: 10398347Abstract: Catheterization is carried out by inserting a sheath into a human patient and moving a catheter having an electrode through the sheath lumen. A variation between a first threshold value and a second threshold value in electrical current through the electrode is identified. Responsively to the variation, it is reported that a portion of the catheter has transitioned between an in-sheath condition and an out-of-sheath condition. The sheath is defined and identified by the historical data of the readings of the magnetic sensor during its movements.Type: GrantFiled: December 18, 2015Date of Patent: September 3, 2019Assignee: Biosense Webster (Israel) Ltd.Inventors: Assaf Pressman, Shaul Haim Raz, Avigdor Rosenberg, Dror Berman
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Publication number: 20190167137Abstract: Catheterization of the heart is carried out by inserting a probe having electrodes into a heart of a living subject, recording a bipolar electrogram and a unipolar electrogram from one of the electrodes at a location in the heart, and defining a window of interest wherein a rate of change in a potential of the bipolar electrogram exceeds a predetermined value. An annotation is established in the unipolar electrogram, wherein the annotation denotes a maximum rate of change in a potential of the unipolar electrogram within the window of interest. A quality value is assigned to the annotation, and a 3-dimensional map is generated of a portion of the heart that includes the annotation and the quality value thereof.Type: ApplicationFiled: February 5, 2019Publication date: June 6, 2019Inventors: Meir Bar-Tal, Richard P.M. Houben, Yaniv Ben Zriham, Assaf Pressman, Roy Urman, Shmuel Auerbach
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Publication number: 20190125438Abstract: Described herein is a method and system for gap detection in ablation lines. Microelectrodes are implemented at a distal tip of a catheter to provide localized gap detection along an ablation line. A pacing protocol is used to sequence through each of the microelectrode pairs for a tissue location. If living tissue is present, the pacing signal travels through the living tissue to pulse the heart. An operator will see a capture signal and know that there is a gap in the ablation line. The ablation electrode is then used to ablate the tissue in the gap. Pacing and ablation are therefore performed at the same place without the need to switch between instruments and/or catheters. In an implementation, a force sensor can automate the pacing protocol by determining which microelectrode pair is contacting the tissue. Moreover, signaling between microelectrode pairs can determine contact between the catheter and the tissue.Type: ApplicationFiled: October 31, 2017Publication date: May 2, 2019Applicant: Biosense Webster (Israel) Ltd.Inventors: Dror Berman, Assaf Pressman
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Patent number: 10238309Abstract: Catheterization of the heart is carried out by inserting a probe having electrodes into a heart of a living subject, recording a bipolar electrogram and a unipolar electrogram from one of the electrodes at a location in the heart, and defining a window of interest wherein a rate of change in a potential of the bipolar electrogram exceeds a predetermined value. An annotation is established in the unipolar electrogram, wherein the annotation denotes a maximum rate of change in a potential of the unipolar electrogram within the window of interest. A quality value is assigned to the annotation, and a 3-dimensional map is generated of a portion of the heart that includes the annotation and the quality value thereof.Type: GrantFiled: December 15, 2016Date of Patent: March 26, 2019Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Meir Bar-Tal, Richard P. M Houben, Yaniv Ben Zriham, Assaf Pressman, Roy Urman, Shmuel Auerbach
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Publication number: 20180271402Abstract: Described embodiments include apparatus for use with a catheter. The apparatus includes a sheath configured for insertion into a body of a subject, and a sensor, coupled to the sheath, configured to detect an electric current passing through the catheter, when the catheter passes through the sheath and into the body of the subject. Other embodiments are also described.Type: ApplicationFiled: March 27, 2017Publication date: September 27, 2018Applicant: BIOSENSE WEBSTER (ISRAEL) LTD.Inventors: Daniel Osadchy, Konstantin Feldman, Assaf Pressman, Shmuel Cohen
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Publication number: 20180042683Abstract: A method, including calculating locations of first sensors attached to a probe that has been inserted into a human patient, and calculating positions of second sensors attached to a sheath via which the probe is inserted. The method also includes calculating respective shapes of the probe and the sheath, to achieve a best fit to the calculated probe sensor locations and sheath sensor positions, while restricting the probe to pass through the sheath. The calculated respective shapes of the probe and the sheath are used to present an image of the sheath aligned with the probe.Type: ApplicationFiled: July 14, 2017Publication date: February 15, 2018Inventors: Shmuel Cohen, Lior Zar, Assaf Pressman, Konstantin Feldman, Daniel Osadchy, Oshrat Ben Zaken, Shiran Eliyahu, Meir Bar-Tal
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Publication number: 20170303804Abstract: A method, a computer readable media and a hand-held device, the hand-held device may include a first sensor that is positioned such as to be contacted by a first hand of a user when the user holds the hand-held device; a second sensor that is positioned such as to be contacted by a second hand of the user when the user holds the hand-held device; wherein at least one sensor of the first sensor and the second sensor is a hybrid sensor that comprises an electrode, an illumination element and a light detector; and a health monitoring module arranged to process detections signals from the electrode and from the light detector such as to provide processed signals that are indicative of a state of the user.Type: ApplicationFiled: June 30, 2017Publication date: October 26, 2017Inventors: Benny Tal, Yair Tal, Assaf Pressman
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Patent number: 9750422Abstract: Apparatus, including a flexible insertion tube, having a distal segment that is configured to be inserted into a body organ. A plurality of elastic branches are connected to the distal segment of the insertion tube at different, respective locations and extend transversely away from the insertion tube at the respective locations. There are one or more respective electrodes disposed on each of the elastic branches and there are conductors traversing the elastic branches so as to couple the electrodes to the insertion tube.Type: GrantFiled: January 23, 2015Date of Patent: September 5, 2017Assignee: BIOSENSE WEBSTER (ISRAEL) LTDInventors: Eliahu Zino, Noam Igra, Shmuel Auerbach, Roy Urman, Yaniv Ben Zriham, Assaf Pressman