SYSTEMS AND METHODS FOR DEFORMATION COMPENSATION USING SHAPE SENSING

    公开(公告)号:US20240389882A1

    公开(公告)日:2024-11-28

    申请号:US18793090

    申请日:2024-08-02

    Abstract: A non-transitory machine-readable media storing instructions that, when run by one or more processors, cause the one or more processors to store a deformable model of anatomic passageways of a patient anatomy. The deformable model comprises a plurality of model passageway links connected at connection points, and each of the model passageway links includes a centerline. At each respective connection point, the corresponding passageway links include an orientation. The instructions further cause the one or more processors to modify the deformable model by modifying relative orientations of one or more model passageway links of the plurality of model passageway links. The modifying is based on one or more modeling parameters that affect a shape of the plurality of model passageway links.

    Systems and methods for navigation based on ordered sensor records

    公开(公告)号:US11633125B2

    公开(公告)日:2023-04-25

    申请号:US16025688

    申请日:2018-07-02

    Abstract: A method of tracking a medical instrument comprises receiving a model of an anatomical passageway formation and receiving a set of ordered sensor records for the medical instrument. The set of ordered sensor records provide a path history of the medical instrument. The method further comprises registering the medical instrument with the model of the anatomical passageway formation based on the path history. The method further includes displaying a virtual visualization image in a display system, the virtual visualization image being based on the registering of the medical instrument with the model of the anatomical passageway and depicting a rendered view of the model of the anatomical passageway from a perspective of the medical instrument within the model of the anatomical passageway.

    Systems and methods for non-rigid deformation of tissue for virtual navigation of interventional tools

    公开(公告)号:US11376075B2

    公开(公告)日:2022-07-05

    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 FOR REGISTRATION OF MULTIPLE VISION SYSTEMS

    公开(公告)号:US20220079467A1

    公开(公告)日:2022-03-17

    申请号:US17532039

    申请日:2021-11-22

    Abstract: A non-transitory machine-readable media storing instructions is provided. The instructions cause one or more processors to: define a subregion of a model of an anatomic region of a patient anatomy, the subregion corresponding to an area surrounding a tip of an image capture probe located within the anatomic region, the subregion including a plurality of virtual tissue structures—a set of virtual tissue structures of the plurality of virtual tissue structures is situated distally from the tip of the probe; compare a tissue structure in an image received from a camera positioned at the tip of the probe to a portion of the plurality of virtual tissue structures to identify a closest matched virtual tissue structure; and based on identification of the closest matched virtual tissue structure, register the image to the model to identify a virtual probe position for the tip of the probe with respect to the model.

    Systems and methods for medical procedure confirmation

    公开(公告)号:US11166646B2

    公开(公告)日:2021-11-09

    申请号:US14910578

    申请日:2014-08-12

    Abstract: A method comprises advancing a medical instrument and a catheter toward a target tissue within a patient anatomy. The instrument includes a distal sheath marker and is slidably received within the catheter. The distal sheath marker includes a channel and an identification feature. A portion of the instrument is slidably received within the channel. The method further comprises depositing the distal sheath marker at a location at or near the target. The distal sheath marker indicates a farthest advancement point of the instrument within the patient anatomy. The method further comprises: after depositing the distal sheath marker, withdrawing the instrument away from the target; determining an orientation of the distal sheath marker based on the identification feature; and, after withdrawing the instrument, using the location and orientation of the deposited distal sheath marker to determine a trajectory of a distal end of the instrument at or near the target.

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