SYSTEMS AND METHODS FOR REGISTRATION OF PATIENT ANATOMY

    公开(公告)号:US20220054202A1

    公开(公告)日:2022-02-24

    申请号:US17432727

    申请日:2020-02-24

    Abstract: A system may comprise a medical instrument, a tracking subsystem configured to receive position data from the medical instrument, and a control system communicatively coupled to the medical instrument and the tracking subsystem. The control system may be configured to perform operations including accessing a model of an anatomic structure of a patient and receiving an indication that the medical instrument has been delivered to a known anatomical landmark. The operations may also include collecting a plurality of measurement points of the anatomic structure along a measurement path extending from a measurement initiation position proximate the known anatomical landmark within the anatomic structure of the patient as the medical instrument moves along the measurement path. The operations may also include determining a location of the medical instrument relative to the anatomic structure and registering the collected plurality of measurement points to the model of the anatomic structure.

    SYSTEMS AND METHODS FOR NON-RIGID DEFORMATION OF TISSUE FOR VIRTUAL NAVIGATION OF INTERVENTIONAL TOOLS

    公开(公告)号:US20210236206A1

    公开(公告)日:2021-08-05

    申请号:US17205173

    申请日:2021-03-18

    Abstract: A processing system may comprise a central processing unit, a graphics processing unit, and a memory having computer readable instructions. The computer readable instructions may cause the processing system to obtain a reference tree of nodes and linkages based on a reference 3D volumetric representation of a branched anatomical formation in a reference state and obtain, by the central processing unit, a reference 3D geometric model based on the reference tree. The instructions may also cause the processing system to receive, by the graphics processing unit, a non-rigid transform for the nodes of the reference tree and determine, by the graphics processing unit, a rigid transform for the reference tree nodes based on the non-rigid transform. The instructions may also cause the processing system to transform each node into a deformed node, create a 3D deformation field, and create a deformed 3D geometric model of the branched anatomical formation.

    Systems and methods of continuous registration for image-guided surgery

    公开(公告)号:US11065059B2

    公开(公告)日:2021-07-20

    申请号:US16343093

    申请日:2017-10-31

    Abstract: Methods and systems of registering a model of one or more anatomic passageways of a patient to a patient space are provided herein. An exemplary method may include accessing a set of model points of the model of the passageways, the model points being associated with a model space, collecting measured points along a length of a catheter inserted into the passageways of the patient, the measured points determined by a shape of the catheter, and assigning points of the first set to a plurality of subsets. The exemplary method may further include registering each of the subsets with the model points to produce a plurality of registration candidates, comparing the candidates to identify an optimal subset associated with an optimal registration of the plurality of candidates that translates the set of model points and at least one set of the sets of measured points into a common space.

    SYSTEMS AND METHODS FOR MONITORING PATIENT MOTION DURING A MEDICAL PROCEDURE

    公开(公告)号:US20200297442A1

    公开(公告)日:2020-09-24

    申请号:US16638660

    申请日:2018-08-14

    Abstract: A method of controlling an elongate instrument during a medical procedure involving motion of the elongate instrument relative to a patient is provided. The method includes generating, by a control system, a first model of the elongate instrument, and generating, by the control system, a second model of the elongate instrument based on a reference pose of the elongate instrument. The method further includes comparing, by the control system, the first model with the second model and determining, by the control system, a state of a system configuration based on the comparison.

    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.

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