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公开(公告)号：US20230124397A1
公开(公告)日：2023-04-20
申请号：US18082755
申请日：2022-12-16
发明人： Assaf Govari
IPC分类号： A61B5/06 , A61B34/20 , A61B5/00 , G01R33/385
摘要： A location pad includes multiple field-generators and a frame. The multiple field-generators are configured to generate respective magnetic fields in a region-of-interest of a patient organ, so as to measure a position of a medical instrument in the region-of-interest. The frame is transparent to an X-ray radiation, and is configured to fix the multiple field-generators at respective positions surrounding the region-of-interest.
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公开(公告)号：US20230113226A1
公开(公告)日：2023-04-13
申请号：US18081764
申请日：2022-12-15
发明人： Assaf Govari , Vadim Gliner
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：US20230093600A1
公开(公告)日：2023-03-23
申请号：US17481616
申请日：2021-09-22
摘要： A method includes receiving a set of data points including positions and respective velocities of an activation wave in a tissue region of a cardiac chamber. The set is partitioned into at least two velocity clusters, each velocity cluster characterized by a respective velocity of the activation wave. One or more border curves are estimated, between the at least two clusters. The one or more border curves are indicated to a user as possible lines of block of the activation wave.
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公开(公告)号：US20230091996A1
公开(公告)日：2023-03-23
申请号：US17483097
申请日：2021-09-23
摘要： A method includes emitting an ultrasound beam from an array of ultrasound transducers in a catheter placed in a blood pool in an organ. Echo signals reflected in response to the ultrasound beam are received in the array. Distinction is made in the echo signals between (i) first spectral signal components having Doppler shifts characteristic of blood and (ii) second spectral signal components having Doppler shifts characteristic of tissue of the organ. The first spectral signal components are suppressed relative to the second spectral signal components in the echo signals. An ultrasound image of at least a portion of the organ is reconstructed from the echo signals having the suppressed first spectral signal components. The reconstructed image is displayed to a user.
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公开(公告)号：US20230091133A1
公开(公告)日：2023-03-23
申请号：US17483065
申请日：2021-09-23
摘要： A medical probe includes a shaft and a distal-end assembly. The shaft is configured for insertion into an organ of a body. The distal-end assembly is fitted at a distal end of the shaft. The distal-end assembly includes (a) a substrate, (b) a two-dimensional (2D) ultrasound transducer array located on the substrate, and (c) a sensor, which is also located on the substrate, the sensor configured to output signals indicative of a position and an orientation of the 2D ultrasound transducer array inside the organ.
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公开(公告)号：US20230087907A1
公开(公告)日：2023-03-23
申请号：US17977152
申请日：2022-10-31
发明人： Assaf Govari
摘要： A system includes a medical probe and a position-tracking system. The medical probe includes a distal end, and one or more distal magnetic position sensors. The medical probe further includes a proximal-end assembly, and one or more proximal magnetic position sensors. The position-tracking system includes a memory, which is configured to hold values indicative of known relative positions between the distal magnetic position sensors and the proximal magnetic position sensors. The position-tracking system includes a processor, which is configured to receive one or more signals indicative of estimated positions of the proximal magnetic position sensors and of the distal magnetic position sensors, as measured by the position-tracking system, and to initiate a responsive action in response to detecting a discrepancy between the known relative positions and the estimated positions.
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公开(公告)号：US20230061165A1
公开(公告)日：2023-03-02
申请号：US17462206
申请日：2021-08-31
发明人： Eliyahu Ravuna , Assaf Govari , Tal Haim Bar-on , Elad Azaria , Michael Maydel , Alon Ben Natan
摘要： In one embodiment, a system includes a catheter, at least one position sensor to provide position signal(s) indicative of a position of a distal end of the catheter over time, a first smoothing filter to provide first filtered position signal(s) responsively to the position signal(s) and a first filtering level, a second smoothing filter to provide second filtered position signal(s) responsively to the position signal(s) and a second filtering level, wherein the second filtering level provides more smoothing than the first filtering level, and processing circuitry to find first and second position coordinates of the distal end responsively to the first and second filtered position signal(s), respectively, generate, and render to a display, an anatomical map of a body part responsively to the second position coordinates, and render a representation of the distal end to the display while showing movement of the distal end responsively to the first position coordinates.
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公开(公告)号：US20230048486A1
公开(公告)日：2023-02-16
申请号：US17402969
申请日：2021-08-16
发明人： Assaf Govari , Andres Claudio Altmann , Ella Ozeri , Dayan Siton
摘要： A method includes generating an ablation programming language, which defines commands for (i) setting ablation protocol parameters and respective values, (ii) setting a configuration of an ablation system, (iii) applying automatic logic that relates the ablation protocol parameters and the values to the configuration of the ablation system, and (iv) generating one or more graphical user interfaces (GUIs) showing one or more of the parameters of the ablation protocol and the system configuration. The ablation programming language is provided for subsequent use with the ablation system.
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公开(公告)号：US11576720B2
公开(公告)日：2023-02-14
申请号：US16269851
申请日：2019-02-07
摘要： A method for use with an intra-body probe, a distal end of which includes an ablation electrode and a temperature sensor, is described. While (i) the ablation electrode is driving an ablating current into tissue of a subject, and (ii) fluid is passed from the distal end of the intra-body probe at a fluid-flow rate, a processor receives a temperature sensed by the temperature sensor. The processor estimates a temperature of the tissue, based at least on the sensed temperature and at least one parameter selected from the group consisting of: the fluid-flow rate, and a parameter of the ablating current. The processor generates an output in response to the estimated temperature. Other embodiments are also described.
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公开(公告)号：US11553937B2
公开(公告)日：2023-01-17
申请号：US16730772
申请日：2019-12-30
发明人： Yehuda Algawi , Assaf Govari , Ilya Sitnitsky , Stanislav Katzir
IPC分类号： A61F2/95 , A61B17/24 , A61B17/34 , A61B90/00 , A61M1/00 , A61B1/05 , A61B1/06 , A61B5/06 , A61B5/00 , A61B17/00 , A61M25/01 , A61M25/09 , A61M25/10
摘要： A medical tool includes, a deflectable distal end, at least a pull wire, and a deflection assembly. The at least pull wire having a first end coupled to the distal end of the medical tool and configured to be moved for deflecting the distal end. The deflection assembly is coupled to a second end of at least the pull wire and is configured to control a deflection of the distal end. The deflection assembly includes a first gear having a first rotation axis, and a second gear, having a second rotation axis and including a jagged surface for integrating with the first gear. The jagged surface is slanted relative to the second rotation axis, and when the first gear rotates, the second gear is configured to be rotated by the first gear, to move along the second rotation axis and to deflect the distal end by moving the pull wire.
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