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    Guidewire with Ray Tracing Capability
    3.
    发明申请
    Guidewire with Ray Tracing Capability 审中-公开

    公开(公告)号：US20170135764A1

    公开(公告)日：2017-05-18

    申请号：US15289813

    申请日：2016-10-10

    申请人： Biosense Webster (Israel) Ltd.

    发明人： Vadim Gliner ,  Ram Bernard Mayer

    IPC分类号： A61B18/20 ,  A61M25/09 ,  A61B34/20 ,  A61B6/12 ,  A61B6/03

    摘要： A method, including registering a computerized tomography (CT) scan of a patient with a tracking system configured to track a location and an orientation of a sensor in the patient, and displaying the CT scan on a screen. The method further includes tracking coordinates of a probe having the sensor inside the patient using the tracking system. Based on the tracked coordinates, an icon representative of the location of the sensor is overlaid on the CT scan on the screen. The method also includes overlaying on the CT scan a ray, issuing from the icon in a direction corresponding to the orientation of the sensor, and traversing the screen to a termination point chosen responsively to a gray level distribution of the CT scan.

    SEEING THROUGH MUCUS IN AN ENT PROCEDURE
    7.
    发明申请
    SEEING THROUGH MUCUS IN AN ENT PROCEDURE 有权

    公开(公告)号：US20220225951A1

    公开(公告)日：2022-07-21

    申请号：US17713362

    申请日：2022-04-05

    申请人： BIOSENSE WEBSTER (ISRAEL) LTD.

    发明人： Andres Claudio Altmann ,  Vadim Gliner ,  Ram Bernard Mayer

    IPC分类号： A61B6/12 ,  A61B6/03 ,  A61B6/00 ,  A61B5/06 ,  A61B90/00 ,  G06T11/00

    摘要： A method for radiographic imaging of a body cavity includes imaging the body cavity using computerized tomography (CT) to form a CT image, registering a tracking system with the CT image, inserting into the body cavity a guidewire, including a position sensor, operating in the tracking system, attached to a distal end of the guidewire, in response to signals from the position sensor acquired by the tracking system, displaying a position of the distal end of the guidewire on the CT image. The method further includes assigning voxels within a predefined imaging volume relative to the distal end and having a radiodensity less than a predetermined threshold to have a uniform radiodensity of a predefined default value, incorporating the voxels with the assigned predefined default value into the CT image so as to form an updated CT image, and displaying the updated CT image.

    Registration of a magnetic tracking system with an imaging device
    8.
    发明授权
    Registration of a magnetic tracking system with an imaging device 有权

    公开(公告)号：US10535136B2

    公开(公告)日：2020-01-14

    申请号：US16202314

    申请日：2018-11-28

    申请人： Biosense Webster (Israel) Ltd.

    发明人： Vadim Gliner ,  Ram Bernard Mayer

    IPC分类号： G06K9/00 ,  G06T7/00 ,  G06T7/30

    摘要： Described embodiments include a processor that receives signals from a probe, as the probe is placed at respective locations on a body of a subject, and derives, from the signals, a set of points that correspond to the respective locations. The processor then registers the set of points with a three-dimensional image of the body, by identifying, for each of the points, one or more voxels of the image whose respective surface normals are oriented within a given angle of an orientation at which the probe was held at the location to which the point corresponds, and computing a transformation that aligns each of the points with a selected one of the voxels that were identified for the point. The processor then tracks, based on the registering, a location of an intrabody tool, in a coordinate system of an imaging device that was used to acquire the image.

    Registration of a magnetic tracking system with an imaging device
    9.
    发明授权
    Registration of a magnetic tracking system with an imaging device 有权

    公开(公告)号：US10152786B2

    公开(公告)日：2018-12-11

    申请号：US15290968

    申请日：2016-10-11

    申请人： Biosense Webster (Israel) Ltd.

    发明人： Vadim Gliner ,  Ram Bernard Mayer

    IPC分类号： G06K9/00 ,  G06T7/00 ,  G06T7/30

    摘要： Described embodiments include a processor that receives signals from a probe, as the probe is placed at respective locations on a body of a subject, and derives, from the signals, a set of points that correspond to the respective locations. The processor then registers the set of points with a three-dimensional image of the body, by identifying, for each of the points, one or more voxels of the image whose respective surface normals are oriented within a given angle of an orientation at which the probe was held at the location to which the point corresponds, and computing a transformation that aligns each of the points with a selected one of the voxels that were identified for the point. The processor then tracks, based on the registering, a location of an intrabody tool, in a coordinate system of an imaging device that was used to acquire the image.