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    CLOSED SURFACE FITTING FOR SEGMENTATION OF ORTHOPEDIC MEDICAL IMAGE DATA
    3.
    发明申请
    CLOSED SURFACE FITTING FOR SEGMENTATION OF ORTHOPEDIC MEDICAL IMAGE DATA 有权

    公开(公告)号：US20220156942A1

    公开(公告)日：2022-05-19

    申请号：US17435991

    申请日：2020-03-18

    Applicant: HOWMEDICA OSTEONICS CORP.

    Inventor： Jean Chaoui ,  Maximilien Mayya ,  Manuel Jean-Marie Urvoy

    IPC: G06T7/149 ,  G06T7/70 ,  G06T7/00

    Abstract: Techniques are described for closed surface fitting (CSF). Processing circuitry may determine a plurality of points on a shape, determine a contour, used to determine a shape of an anatomical object, from image information of one or more images of a patient, and determine corresponding points on the contour that correspond to the plurality of points on the shape based on at least one of respective normal vectors projected from points on the shape and normal vectors projected from points on the contour. The processing circuitry may generate a plurality of intermediate points between the points on the shape and the corresponding points on the contour, generate an intermediate shape based on plurality of intermediate points, and generate a mask used to determine the shape of the anatomical object based on the intermediate shape.

    SOFT TISSUE STRUCTURE DETERMINATION FROM CT IMAGES
    5.
    发明申请
    SOFT TISSUE STRUCTURE DETERMINATION FROM CT IMAGES 有权

    公开(公告)号：US20220054195A1

    公开(公告)日：2022-02-24

    申请号：US17413444

    申请日：2019-12-11

    Applicant: HOWMEDICA OSTEONICS CORP.

    Inventor： Jean Chaoui ,  Charlotte Le Saint ,  Maximilien Mayya ,  Manuel Jean-Marie Urvoy

    IPC: A61B34/10 ,  A61B34/20 ,  G06T7/30 ,  G06F3/01

    Abstract: A surgical planning system for use in surgical procedures to repair an anatomy of interest includes a preplanning system to generate a virtual surgical plan and a mixed reality system that includes a visualization device wearable by a user to view the virtual surgical plan projected in a real environment. The virtual surgical plan includes a 3D virtual model of the anatomy of interest. When wearing the visualization device, the user can align the 3D virtual model with the real anatomy of interest, thereby achieving a registration between details of the virtual surgical plan and the real anatomy of interest. The registration enables a surgeon to implement the virtual surgical plan on the real anatomy of interest without the use of tracking markers.

    USING MIXED-REALITY HARDWARE FOR RANGE OF MOTION ESTIMATION DURING ROBOT-ASSISTED ORTHOPEDIC SURGERY
    6.
    发明申请
    USING MIXED-REALITY HARDWARE FOR RANGE OF MOTION ESTIMATION DURING ROBOT-ASSISTED ORTHOPEDIC SURGERY 有权

    公开(公告)号：US20240423727A1

    公开(公告)日：2024-12-26

    申请号：US18684822

    申请日：2022-08-26

    Applicant: Howmedica Osteonics Corp.

    Inventor： Jean Chaoui

    IPC: A61B34/30 ,  A61B34/10 ,  A61B34/20 ,  A61B90/00

    Abstract: A method comprises obtaining position data generated based on signals from one or more sensors of a mixed-reality (MR) visualization device while the bones of the joint are at a plurality of positions; determining, based on the position data, positions of the bones of the joint; generating, by the surgical assistance system, joint tension data based on the positions of the bones of the joint; determining, based on the joint tension data, areas of a target bone to remove, wherein the target bone is one of the bones of tire joint; generating registration data that registers markers with a coordinate system, wherein the markers are attached to one or more of the bones of the joint; and based on die registration data, controlling operation of a robotic arm of a robot during removal of bone tissue from the areas of the target bone.

    Closed surface fitting for segmentation of orthopedic medical image data
    9.
    发明授权
    Closed surface fitting for segmentation of orthopedic medical image data 有权

    公开(公告)号：US12062183B2

    公开(公告)日：2024-08-13

    申请号：US17435991

    申请日：2020-03-18

    Applicant: HOWMEDICA OSTEONICS CORP.

    Inventor： Jean Chaoui ,  Maximilien Mayya ,  Manuel Jean-Marie Urvoy

    IPC: G06T7/10 ,  G06T7/00 ,  G06T7/149 ,  G06T7/70

    CPC classification number: G06T7/149 ,  G06T7/0012 ,  G06T7/70 ,  G06T2207/30008

    Abstract: Techniques are described for closed surface fitting (CSF). Processing circuitry may determine a plurality of points on a shape, determine a contour, used to determine a shape of an anatomical object, from image information of one or more images of a patient, and determine corresponding points on the contour that correspond to the plurality of points on the shape based on at least one of respective normal vectors projected from points on the shape and normal vectors projected from points on the contour. The processing circuitry may generate a plurality of intermediate points between the points on the shape and the corresponding points on the contour, generate an intermediate shape based on plurality of intermediate points, and generate a mask used to determine the shape of the anatomical object based on the intermediate shape.

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