Electromagnetic sensor with probe and guide sensing elements

    公开(公告)号:US10682070B2

    公开(公告)日:2020-06-16

    申请号:US14802199

    申请日:2015-07-17

    Inventor: Vincent Duindam

    Abstract: A medical system comprises a probe comprising a terminal distal end. The system further comprises a first coil in the probe and comprises a guide instrument including a terminal distal end and defining a lumen sized to guide the probe. The probe can be inserted through the lumen to reach a worksite. At the worksite, the terminal distal end of the probe is configured to reach at least the terminal distal end of the guide instrument. The system further comprises a sensor embedded in a wall of the guide instrument and comprises processing hardware configured to receive a first induced signal from the first coil and to receive from the sensor an indication of a pointing direction of the guide instrument. The processing hardware is configured to use the first induced signal and the indication of the pointing direction to determine a roll angle of the probe.

    Catheter sensor systems
    112.
    发明授权

    公开(公告)号:US10568700B2

    公开(公告)日:2020-02-25

    申请号:US15193524

    申请日:2016-06-27

    Abstract: A medical system comprises a catheter having a first section, a second section and a main lumen extending through the first and second sections. The system also includes an imaging probe sized to extend through the main lumen of the catheter. The system also includes a first electromagnetic sensor extending along a longitudinal sensor axis at a proximal end of the first section and a second electromagnetic sensor extending along the longitudinal sensor axis at a distal end of the first section. The first section between the proximal and distal ends flexibly couples the first and second electromagnetic sensors so that the first electromagnetic sensor is movable with respect to the second electromagnetic sensor. The system also includes a third electromagnetic sensor positioned on the imaging probe and a fiber shape sensor system that extends through the first section between the proximal and distal ends and along the first electromagnetic sensor and the second electromagnetic sensor.

    SYSTEMS AND METHODS FOR REGISTRATION OF A MEDICAL DEVICE USING A REDUCED SEARCH SPACE

    公开(公告)号:US20190320937A1

    公开(公告)日:2019-10-24

    申请号:US16402531

    申请日:2019-05-03

    Abstract: A method comprises generating an image of a set of connected passageways of a patient anatomy and modeling the set of connected passageways of the patient anatomy as a structure of linked bounded-surface elements. The method also comprises receiving position information for a point on an instrument indicating a position of the point relative to the connected passageways and generating adjusted position information for the point including comparing the received position information to the structure of linked bounded-surface elements. The method also comprises creating an adjusted instrument image with the adjusted position information and generating a composite image including the image of the set of connected passageways and the adjusted instrument image.

    SYSTEMS AND METHODS FOR REGISTRATION OF A MEDICAL DEVICE USING A REDUCED SEARCH SPACE

    公开(公告)号:US20190175060A1

    公开(公告)日:2019-06-13

    申请号:US16193997

    申请日:2018-11-16

    Abstract: A medical system comprises a flexible instrument including a sensor adapted to provide tracking data for a point on the instrument. The medical system further comprises a memory storing images of a patient anatomy and a processor. The processor is configured to identify connected anatomical structures in the stored images of the patient anatomy, generate an anatomical centerline model from the identified connected anatomical structures, select a set of points disposed on a set of anatomical centerlines of the anatomical centerline model, generate a first plurality of cylindrical linkage elements representing the connected anatomical structures, receive the tracking data corresponding to the point on the instrument when the instrument is positioned within at least one of the connected anatomical structures, and match the point on the instrument to one of the first plurality of cylindrical linkage elements.

    Systems and methods for registration of a medical device using a reduced search space

    公开(公告)号:US10299698B2

    公开(公告)日:2019-05-28

    申请号:US13892871

    申请日:2013-05-13

    Abstract: A method comprises identifying connected anatomical structures in stored images of a patient anatomy and generating a first three-dimensional model of anatomic passageways including a set of anatomical centerlines of the anatomic passageways, and generating a second three-dimensional model of the anatomic passageways including a plurality of linkage elements each including two base points defining a linkage element centerline spanning a shortest distance between the two base points. The method also comprises receiving tracking data corresponding to a point on an instrument positioned within the connected anatomical structures, matching the point on the instrument to one of the plurality of linkage elements representing one of the connected anatomical structures to locate the instrument relative to the connected anatomical structures in the stored images of the patient anatomy, and updating the matching of the point on the instrument to one of the plurality of linkage elements.

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