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公开(公告)号：US12042215B2
公开(公告)日：2024-07-23
申请号：US16522938
申请日：2019-07-26
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：US20220192737A1
公开(公告)日：2022-06-23
申请号：US17130007
申请日：2020-12-22
摘要： A method includes inserting into an organ a catheter having multiple electrodes, and placing the electrodes in contact with tissue for ablation. A selection from among the electrodes is received, including (i) first and second electrodes defining a first section of the catheter having a plurality of the electrodes, and (ii) third and fourth electrodes defining a second section of the catheter having at least two of the electrodes. Identifying whether the first and second sections jointly form a single contiguous ablation line or two disjoint ablation lines. A first set of ablation pulses is applied to the electrodes of the first and second sections, in case the first and second sections form the single contiguous ablation line, or a second different set of ablation pulses is applied to the electrodes of the first and second sections, in case the first and second sections form the two disjoint ablation lines.
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公开(公告)号：USD944272S1
公开(公告)日：2022-02-22
申请号：US29749598
申请日：2020-09-08
设计人： Ella Ozeri , Assaf Govari , Andres Claudio Altmann
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公开(公告)号：US20210022802A1
公开(公告)日：2021-01-28
申请号：US16522938
申请日：2019-07-26
发明人： Assaf Govari , Andres Claudio Altmann , Ella Ozeri
IPC分类号： A61B18/14
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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5.发明申请公开(公告)号：US20190175265A1
公开(公告)日：2019-06-13
申请号：US15841009
申请日：2017-12-13
发明人： Assaf Govari , Ella Ozeri , Andres Claudio Altmann
摘要： An apparatus includes a processor and an output device. The processor is configured to receive positions, within a heart of a patient, of one or more electrodes that apply Radio Frequency (RF) energy to ablate tissue in the heart, in a coordinate system having a vertical axis. The processor is further configured to receive positions, within a heart of a patient, of one or more electrodes that apply Radio Frequency (RF) energy to ablate tissue in the heart, in a coordinate system having a vertical axis, and to calculate, based on the received positions, a subset of one or more smallest heights among respective heights of the electrodes above an esophagus of the patient along the vertical axis, and to generate a graphical user interface that visualizes the electrodes and the respective heights above the esophagus. The output device is configured to present the graphical user interface to a user.
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公开(公告)号：US20230210595A1
公开(公告)日：2023-07-06
申请号：US18121122
申请日：2023-03-14
CPC分类号： A61B18/1492 , A61B18/1206 , A61B2018/00351
摘要： Apparatus, consisting of a probe configured to be inserted into contact with a myocardium, and an electrode attached to the probe. A temperature sensor, incorporated in the probe, is configured to output a temperature signal. A pump irrigates the myocardium, via the probe, with an irrigation fluid at a controllable rate, and a radiofrequency (RF) signal generator applies RF power via the electrode to the myocardium, so as to ablate the myocardium. The apparatus also has processing circuitry that measures a temperature of the probe, based on the temperature signal, while the RF power is applied and, when the measured temperature exceeds a preset target temperature, iteratively reduces the RF power applied by the signal generator and concurrently iteratively varies a rate of irrigation of the irrigation fluid provided by the pump, until the measured temperature is reduced to the preset target temperature.
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公开(公告)号：US20220000543A1
公开(公告)日：2022-01-06
申请号：US16920865
申请日：2020-07-06
发明人： Andres Claudio Altmann , Assaf Govari , Ella Ozeri
IPC分类号： A61B18/14
摘要： A method for applying bipolar ablation pulses, the method includes positioning multiple electrodes of a catheter in contact with tissue of an organ. The tissue is ablated using the multiple electrodes in accordance with a predefined pattern including a periodic set of time slots. Each of the time slots defines (i) an electrode-pair (EP), (ii) a waveform of one or more bipolar ablation pulses (BAPs) applied to the tissue by the EP, and (iii) a duration of the time slot. The time slots are applied sequentially, and the pattern further includes at least one time slot that is empty.
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8.发明申请公开(公告)号：US20200275972A1
公开(公告)日：2020-09-03
申请号：US16288868
申请日：2019-02-28
发明人： ASSAF GOVARI , Andres Claudio Altmann , Ella Ozeri
IPC分类号： A61B18/14
摘要： A method of ablation includes storing in a memory a pre-determined relation between lesion size and amount of ablative energy, for each of one or more selected temperatures. Using a processor, user input is received, that indicates a lesion size and a tissue temperature. Based on the relation, an amount of energy is determined, that matches the lesion size and the tissue temperature. An ablation probe is controlled to apply the amount of ablative energy that matches the selected lesion size.
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公开(公告)号：US20200155225A1
公开(公告)日：2020-05-21
申请号：US16290819
申请日：2019-03-01
发明人： Assaf Govari , Andres Claudio Altmann , Ella Ozeri
摘要： In one embodiment, an irrigated ablation system includes a probe to be inserted into a chamber of a heart, the probe including an electrode, a temperature sensor to provide a temperature signal indicative of a temperature of a myocardium, and an irrigation channel through which to irrigate the myocardium, a pump to pump an irrigation fluid into the irrigation channel, an RF signal generator to generate RF power to be applied by the electrode to ablate the myocardium, and a controller to receive the temperature signal, calculate a rate of change of the temperature over time based on the temperature signal, calculate an irrigation rate with which to irrigate the myocardium via the irrigation channel based at least on the calculated rate of change of the temperature, and provide an irrigation signal to the pump to irrigate the myocardium with the irrigation fluid at the calculated irrigation rate.
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公开(公告)号：US20200155223A1
公开(公告)日：2020-05-21
申请号：US16196255
申请日：2018-11-20
发明人： Assaf Govari , Andres Claudio Altmann , Ella Ozeri
IPC分类号： A61B18/14
摘要： In one embodiment, an irrigated ablation system includes a probe to be inserted into a chamber of a heart, the probe including an electrode, a temperature sensor to provide a temperature signal indicative of a temperature of a myocardium, and an irrigation channel through which to irrigate the myocardium, a pump to pump an irrigation fluid into the irrigation channel, an RF signal generator to generate RF power to be applied by the electrode to ablate the myocardium, and a controller to receive the temperature signal, calculate a rate of change of the temperature over time based on the temperature signal, calculate an irrigation rate with which to irrigate the myocardium via the irrigation channel based at least on the calculated rate of change of the temperature, and provide an irrigation signal to the pump to irrigate the myocardium with the irrigation fluid at the calculated irrigation rate.
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