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公开(公告)号：US20240341845A1
公开(公告)日：2024-10-17
申请号：US18754436
申请日：2024-06-26
发明人： Assaf Govari , Andres Claudio Altmann , Ella Ozeri
CPC分类号： A61B18/1492 , A61B2017/00243 , A61B2018/00351 , A61B2018/00577 , A61B2018/00642 , A61B2018/00702 , A61B2018/00714 , A61B2018/00797 , A61B2018/00839 , A61B2218/002
摘要： A system including a medical probe having a tube with a distal end for insertion into a cardiac chamber, an electrode at the distal end that conveys energy to myocardial tissue, a temperature sensor at the distal end that outputs a signal indicating a temperature of the tissue, a channel contained within the tube that delivers fluid to the distal end, and a fluid port at the distal end and coupled to the channel. The system also includes a generator that applies a specified level of the energy to the electrode, a pump that forces the fluid into the channel at a controllable rate, and a processor that controls the rate responsively to the signal so that a difference between a specified temperature, which is no greater than 55° C., and the indicated temperature is no greater than ±2.5° C. while the generator applies a constant level of the energy.
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公开(公告)号：US12114918B2
公开(公告)日：2024-10-15
申请号：US16541374
申请日：2019-08-15
CPC分类号： A61B18/1492 , A61B5/287 , A61B5/6853 , A61B5/6858 , A61B5/6885 , A61B2018/00029 , A61B2018/0022 , A61B2018/00267 , A61B2018/00375 , A61B2018/00386 , A61B2018/00577 , A61B2018/00613 , A61B2018/00821 , A61B2018/00839 , A61B2018/00845 , A61B2018/00875 , A61B2018/00958
摘要： A system includes an expandable distal end of a catheter and a processor. The expandable distal end has multiple electrodes that are configured to be placed in contact with a tissue in an organ and to apply ablative power to tissue. The processor is configured to, during application of the ablative power, determine whether a physical contact between the electrodes and tissue meets a predefined contact quality, and, if the physical contact of an electrode among the electrodes with the tissue does not meet the predefined contact quality, re-use the electrode for electrophysiological (EP) sensing.
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公开(公告)号：US12048495B2
公开(公告)日：2024-07-30
申请号：US18081764
申请日：2022-12-15
发明人： Assaf Govari , Vadim Gliner
CPC分类号： A61B34/20 , A61B5/062 , A61B90/30 , A61B90/50 , A61B2017/00199 , A61B2017/00725 , A61B17/24 , A61B2034/2051 , A61B2090/309
摘要： A location pad includes multiple field-generators, a frame and a mounting fixture. The multiple field-generators are configured to generate respective magnetic fields in a region-of-interest of a patient body, for measuring a position of a medical instrument in the region-of-interest. The frame is configured to fix the multiple field-generators at respective positions surrounding the region-of-interest. The mounting fixture is configured to position the frame above the patient body.
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公开(公告)号：US12048479B2
公开(公告)日：2024-07-30
申请号：US17081918
申请日：2020-10-27
CPC分类号： A61B18/1492 , A61B2017/00185 , A61B2018/00077 , A61B2018/00136 , A61B2018/00178 , A61B2018/00267 , A61B2018/00357 , A61B2018/00577 , A61B2018/00601 , A61B2018/00613 , A61B2018/00761 , A61B2018/1253 , A61B2018/126 , A61B2018/144 , A61B2018/1467 , A61B2218/002 , A61M2025/0079
摘要： In one embodiment, a medical system includes a catheter configured to be inserted into a body part of a living subject, and including an elongated deflectable element including a distal end, a proximal coupler connected to the distal end, an expandable assembly comprising a plurality of flexible polymer circuit strips, the flexible polymer circuit strips having respective proximal ends connected to, and disposed circumferentially around, the proximal coupler, respective ones of the flexible polymer circuit strips including respective multiple strip electrodes, respective contact arrays disposed at the respective proximal ends, and respective multiple circuit traces electrically connecting the respective multiple strip electrodes with the respective contact arrays, and a plurality of surface mountable electrodes mounted on, and bulging over respective ones of the flexible polymer circuit strips.
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公开(公告)号：US20240225716A1
公开(公告)日：2024-07-11
申请号：US18614023
申请日：2024-03-22
发明人： Israel Zilberman , Assaf Govari , Gili Attias
CPC分类号： A61B18/1206 , A61B18/1492 , A61B2018/00577 , A61B2018/00666 , A61B2018/00702 , A61B2018/00714 , A61B2018/00761 , A61B2018/00827
摘要： Described embodiments include a system and method for pulsed RF ablation that includes generating a plurality of pulses of radiofrequency (RF) current for application to tissue of a subject for cardiac ablation, driving the RF each one of the pulses such that the power of the pulse initially rises from zero to a maximum value, each one of the pulses having a duration from a start point in time to an end point in time, and an intermission between the end point and the start point of successive pulses, receiving at least one signal from a temperature sensor configured to measure a temperature of the tissue being ablated and controlling the power of the plurality of pulses to fractionally change the power of each of the pulses between the start point and end point in response to the measured temperature of the tissue being ablated.
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公开(公告)号：US20240206960A1
公开(公告)日：2024-06-27
申请号：US18088852
申请日：2022-12-27
发明人： Assaf Govari , Aviva Goldberg
CPC分类号： A61B18/1492 , A61B90/37 , A61B2018/00577
摘要： Methods and systems provide for coordinating multiple different types of ablation modes, such as Radio Frequency (RF) ablations of tissue portions with Pulsed Field ablations (PFA), for ablating tissue portions, e.g., ablation sites in the tissue, during a procedure, such as an ablation procedure on a cardiac wall.
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公开(公告)号：US12016728B2
公开(公告)日：2024-06-25
申请号：US17357267
申请日：2021-06-24
CPC分类号： A61B8/485 , A61B8/02 , A61B8/12 , A61B8/4245 , A61B8/4494
摘要： A medical system includes an ultrasound probe configured for insertion into an organ of a body, and a processor. The probe includes a two-dimensional (2D) ultrasound transducer array, and a sensor configured to output signals indicative of a position, direction and orientation of the 2D ultrasound transducer array inside the organ. The processor is configured to (a) using the signals output by the sensor, register multiple ultrasound images of a tissue region, acquired over a given time duration by the 2D ultrasound transducer array, with one another, (b) estimate, based on the ultrasound images acquired over the given time duration, three-dimensional displacements as a function of time for one or more locations in the tissue region, (c) estimate respective mechanical strains of the one or more locations in the tissue region, based on the three-dimensional displacements, and (d) present a time-dependent rendering of the mechanical strains to a user.
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公开(公告)号：US20240197234A1
公开(公告)日：2024-06-20
申请号：US18081756
申请日：2022-12-15
发明人： Assaf Govari
CPC分类号： A61B5/367 , A61B5/287 , A61B5/339 , A61B5/361 , A61B5/7221
摘要： A system for computing an electro-anatomical (EA) map of signals from tissue inside a chamber of a patient's includes a processor and a display. The processor receives electro-physiological (EP) signals from a plurality of electrodes on a distal end assembly of a catheter placed in the chamber, selects a contiguous sub-group of the plurality of electrodes and applies a consistency test to the EP signals acquired by the contiguous sub-group to determine if the EP signals from the sub-group of the electrodes display a common cycle length. When the consistency test is successful, the processor identifies a region in the chamber from which the EP signals have been acquired. The display renders an electro-anatomical (EA) map of the chamber and provides indicating on the rendered display of the region.
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公开(公告)号：US12011211B2
公开(公告)日：2024-06-18
申请号：US16586421
申请日：2019-09-27
发明人： Yehuda Algawi , Assaf Govari , Gili Attias , Ilya Sitnitsky
CPC分类号： A61B18/1492 , A61M3/0202 , A61M3/0258 , F04B49/20 , A61B2018/00029 , A61B2018/00351 , A61B2018/00577 , A61B2018/00744 , F04B2201/0202
摘要： A pump includes a cylinder, a piston and a controller. The cylinder has first and second ends and includes first and second inlet-outlet ports, each of the first and second inlet-outlet ports is configured to alternately intake a fluid to the cylinder and output the fluid from the cylinder. The piston is configured to be moved within the cylinder between the first and second ends by alternately reversing a direction of movement of the piston, so as to pump the fluid through the first and second inlet-outlet ports. The controller is configured to control the movement of the piston within the cylinder, including: (a) choosing between first and second operational modes, (b) in the first operational mode, controlling the piston to oscillate over a predefined interval that does not exceed a predefined distance from the first end or from the second end, and (c) in the second operational mode, controlling the piston to move at a selected speed between the first end and the second end.
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公开(公告)号：US11998265B2
公开(公告)日：2024-06-04
申请号：US16724683
申请日：2019-12-23
发明人： Assaf Govari
CPC分类号： A61B18/1492 , A61B5/065 , A61B5/6853 , A61B5/6858 , A61B2018/00351 , A61B2018/00577
摘要： A method for invasive cardiac treatment, including inserting a catheter via a transvascular route into a beating heart of a patient who is anesthetically paralyzed and intubated for ventilation, and, after inserting the catheter, temporarily halting ventilation of the patient. The method includes moving the catheter between a plurality of locations of myocardial tissue of the heart while the ventilation is halted; and ablating the myocardial tissue of the heart at the plurality of locations while the ventilation is halted.
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