REGIONAL RESOLUTION IN FAST ANATOMICAL MAPPING

    公开(公告)号:US20220183761A1

    公开(公告)日:2022-06-16

    申请号:US17123624

    申请日:2020-12-16

    摘要: A method includes, receiving, on a surface of an anatomical map of a patient organ having a first presentation, a selection of a first selected region, which is intended to have a second presentation, different from the first presentation. A perimeter of the first selected region, and at least an unselected area positioned within the first selected region, are identified. A second selected region is produced, the second selected region includes the first selected region and the unselected area. The anatomical map, having the second presentation applied to the second selected region, is displayed.

    Medical tool puncture warning method and apparatus

    公开(公告)号:US10242548B2

    公开(公告)日:2019-03-26

    申请号:US15602818

    申请日:2017-05-23

    IPC分类号: G08B21/00 G08B21/18 A61B17/34

    摘要: A conduit puncture alert method and apparatus are provided for a medical instrument having a flexible conduit through which a medical procedure is performed. In one embodiment, the flexible conduit is inserted into a subject. A highest degree of curvature of the conduit within the subject is sensed. A warning signal is then provided upon a condition that a curvature is sensed that exceeds a predetermined limit reflective of a maximum curvature permissible for a selected tool to be inserted through the conduit while avoiding puncturing of the conduit by the selected tool. For example, the method can be conducted with respect to a bronchoscope during a bronchoscopic procedure where a needle tool is to be used and the warning is given with respect to that tool when a conduit curvature is sensed that exceeds a predetermined limit determined with respect to the needle tool.

    ENT Image Registration
    4.
    发明申请

    公开(公告)号:US20190046272A1

    公开(公告)日:2019-02-14

    申请号:US15674380

    申请日:2017-08-10

    IPC分类号: A61B34/20 G06T7/73

    摘要: A method, including receiving a computerized tomography (CT) image of voxels of a subject's head, and analyzing the image to identify respective locations of the subject's eyes in the image, so defining a first line segment joining the respective locations. The method includes identifying a voxel subset overlaying bony sections of the head, lying on a second line segment parallel to the first line segment and on a third line segment orthogonal to the first line segment. A magnetic tracking system configured to measure positions on the subject's head is activated, and a probe, operative in the system, is positioned in proximity to the bony sections to measure positions of a surface of the head overlaying the bony sections. A correspondence between the positions and the voxel subset is formed, and a registration between the CT image and the magnetic tracking system is generated in response to the correspondence.

    Calibration of a rigid ENT tool
    7.
    发明授权

    公开(公告)号:US11065064B2

    公开(公告)日:2021-07-20

    申请号:US15812059

    申请日:2017-11-14

    摘要: An apparatus, including a magnetic field generator, a first magnetic field sensor configured for attachment to a proximal end of a surgical tool configured for insertion into a body, and a calibration device that includes a second magnetic field sensor and a proximity sensor, wherein the field sensors generate respective location signals responsive to a magnetic field emanating from the generator and traversing the field sensors. The apparatus includes a control unit, which receives the signals from all the sensors, extracts respective location and orientation coordinates of the field sensors based on the signals, computes a conversion relation between the coordinates of the first sensor and a distal end of the tool that is brought into contact with the calibration device, and subsequently applies the conversion relation, together with the coordinates of the first sensor, in providing a visual indication of a location of the distal end inside the body.

    BALLOON POSITIONING IN A SINUPLASTY PROCEDURE

    公开(公告)号:US20190314032A1

    公开(公告)日:2019-10-17

    申请号:US16400272

    申请日:2019-05-01

    摘要: A method includes inserting into a patient organ a catheter including a position sensor, a device and a handle. The position sensor is attached to a distal end of the catheter. The device is movable along the catheter. The handle includes a control for navigating the device along the catheter to a target location in the patient organ. Based on a location of the position sensor, a target position of the control on the handle that corresponds to the target location of the device is estimated. A marker is set to mark the target position of the control on the handle, and the device is navigated to the target location by setting the control to the marker.

    REGISTRATION WITH TRAJECTORY INFORMATION WITH SHAPE SENSING

    公开(公告)号:US20180368917A1

    公开(公告)日:2018-12-27

    申请号:US15629044

    申请日:2017-06-21

    IPC分类号: A61B34/20 A61B1/267 A61B5/06

    摘要: A method and system for automatic landmark registration and registration using trajectory information and shape sensing during an endoscopic procedure, such as bronchoscopy, are described herein. A segmentation centerline of airways of a lung may be generated based on a pre-operative computed tomography (CT) image of the lung. Landmarks may be automatically detected on the segmentation centerline corresponding to bifurcations in the airways of the lung. A location data point cloud of locations of a catheter through the airways of the lung during navigation may be generated. A bounding volume of the airways of the lung may be generated and a bounding volume centerline may be detected. Landmarks may be detected on the bounding volume centerline for the same bifurcations. Then, the two sets of landmarks may be mapped as part of registration. The trajectory information with shape sensing may be used to provide non-rigid or fine registration.