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公开(公告)号：US20220322960A1
公开(公告)日：2022-10-13
申请号：US17641476
申请日：2020-09-11
Applicant: Navix International Limited
Inventor： Shlomo BEN-HAIM , Eli DICHTERMAN
IPC: A61B5/06 , A61B5/0538 , A61B5/00
Abstract: Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device.
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公开(公告)号：US20210090215A1
公开(公告)日：2021-03-25
申请号：US16971336
申请日：2019-02-21
Applicant: Navix International Limited
Inventor： Shlomo BEN-HAIM , Eli DICHTERMAN
Abstract: A method of generating a combined image of a body part from a sequence of partially overlapping source images of the body part, each of the partially overlapping source images showing the body part at one of a plurality of different times, the source images being ordered in the sequence according to the different times, the method including defining a temporally coherent sequence of transformations, for registering the partially overlapping source images in the sequence with each other, registering the source images to each other using the defined temporally coherent sequence of transformations, to obtain co-registered images, and combining at least some of the co-registered images into a combined image. Related apparatus and methods are also described.
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公开(公告)号：US20200286225A1
公开(公告)日：2020-09-10
申请号：US16650973
申请日：2018-07-18
Applicant: Navix International Limited
Inventor： Shlomo BEN-HAIM , Leonid GLUHOVSKY , Yitzhack SCHWARTZ , Eli DICHTERMAN , Yaara YARDEN
Abstract: Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
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公开(公告)号：US20200163569A1
公开(公告)日：2020-05-28
申请号：US16461010
申请日：2017-11-16
Applicant: Navix International Limited
Inventor： Yitzhack SCHWARTZ , Zalman IBRAGIMOV , Yehonatan BEN DAVID , Yizhaq SHMAYAHU , Eli DICHTERMAN , Shlomo BEN-HAIM
Abstract: A method of estimating a spatial relationship between at least a part of a patient esophagus and a heart chamber, including :measuring at least one electric parameter at one or more positions within the heart chamber to obtain measured values; and estimating the spatial relationship based on the measured values.
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5.发明申请公开(公告)号：US20190336035A1
公开(公告)日：2019-11-07
申请号：US16476875
申请日：2018-01-12
Applicant: Navix International Limited
Inventor： Eli DICHTERMAN , Yitzhack SCHWARTZ , Yizhaq SHMAYAHU , Shlomo BEN-HAIM
Abstract: In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of voltages by an intrabody probe (for example, a catheter probe) moving within a plurality of differently-oriented electromagnetic fields crossing the body cavity. In some embodiments, the method uses distances between electrodes as a spatially calibrated ruler. Positions of measurements made with the intrabody probe in different positions are optionally related by using spatial coherence of the measured electromagnetic fields as a constraint. Optionally, reconstruction is performed without using a detailed reference (image or simulation) describing the body cavity shape. Optionally, reconstruction uses further information to refine and/or constrain the reconstruction; for example: images, simulations, additional electromagnetic fields, and/or measurements characteristic of body cavity landmarks. Optionally, reconstruction accounts for time-dependent cavity shape changes, for example, phasic changes (e.g., heartbeat and/or respiration), and/or changes in states such as subject hydration, edema, and/or heart rate.
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Patent Agency Ranking
公开(公告)号：US20230044012A1
公开(公告)日：2023-02-09
申请号：US17789199
申请日：2020-12-28
Applicant: Navix International Limited
Inventor： Shlomo BEN-HAIM , Eli DICHTERMAN
Abstract: Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device. In some embodiments, electrical measurements are used to guide implantation verification. In some embodiments, electrical measurements are used to guide navigation at and through a septal wall between body cavities.
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公开(公告)号：US20210153933A1
公开(公告)日：2021-05-27
申请号：US17140198
申请日：2021-01-04
Applicant: Navix International Limited
Inventor： Yitzhack SCHWARTZ , Yizhaq SHMAYAHU , Eli DICHTERMAN
Abstract: Devices and methods for tissue lesion assessment and/or creation based on dielectric properties are disclosed. In some embodiments, one or more probing frequencies are delivered via electrodes including an electrode in proximity to a tissue (for example, myocardial tissue). Measured dielectric properties (such as impedance properties), optionally together with other known and/or estimated tissue characteristics, are used to determine the lesion state of the tissue. In some embodiments, a developing lesion state is monitored during treatment formation of a lesion (for example, ablation of heart tissue to alter electrical transmission characteristics).
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公开(公告)号：US20200289025A1
公开(公告)日：2020-09-17
申请号：US16639610
申请日：2018-07-18
Applicant: Navix International Limited
Inventor： Eli DICHTERMAN , Shlomo BEN-HAIM
Abstract: A method of reconstructing a shape of a volume of a part of a subject based on intrabody measurements of a plurality of crossing electromagnetic fields established within the volume, the method including: receiving, by computer circuitry, measurements of the crossing electromagnetic fields carried out using at least one sensor carried on an intrabody probe, the measuring being carried out with the probe at multiple locations in the volume, to provide a set of measurement samples, each taken at a location; generating, by computer circuitry and based on said measurement samples, a transformation that transforms measurement samples to geometric positions; transforming, using said generated transformation fewer than half of the measurements in said set of measurement samples into a set of geometric positions; and reconstructing the shape of said volume from said set of geometric positions.
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公开(公告)号：US20200060757A1
公开(公告)日：2020-02-27
申请号：US16349999
申请日：2017-11-16
Applicant: Navix International Limited
Inventor： Shlomo BEN-HAIM , Yizhaq SHMAYAHU , Yitzhack SCHWARTZ , Haim RODRIGUEZ , Eli DICHTERMAN , Zalman IBRAGIMOV , Yaara YARDEN
Abstract: Methods for estimating of the effectiveness of catheter ablation procedures to form lesions. Lesion effectiveness parameters are received, and effectiveness of a corresponding ablation (optionally planned, current, and/or already performed) is estimated. The estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. The estimator is used by application to the received lesion effectiveness parameters.
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公开(公告)号：US20190340838A1
公开(公告)日：2019-11-07
申请号：US16476893
申请日：2018-01-12
Applicant: Navix International Limited
Inventor： Leonid GLUHOVSKY , Yitzhack SCHWARTZ , Eli DICHTERMAN , Shlomo BEN-HAIM , Yaara YARDEN
Abstract: Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
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