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    Determination of Dynamic DRRs
    263.
    发明公开
    Determination of Dynamic DRRs 审中-公开

    公开(公告)号：US20230342992A1

    公开(公告)日：2023-10-26

    申请号：US18309968

    申请日：2023-05-01

    Applicant: Brainlab AG

    Inventor： Kajetan BERLINGER ,  Birte DOMNIK ,  Elisa Garcia Corisco ,  Pascal BERTRAM

    IPC: G06T11/00 ,  A61N5/10 ,  A61B6/00 ,  A61B6/12 ,  A61B6/03 ,  G16H50/50 ,  G06T7/20 ,  G06T7/00

    CPC classification number: G06T11/003 ,  A61N5/1037 ,  A61B6/486 ,  A61B6/12 ,  A61B6/5223 ,  A61B6/5288 ,  A61B6/032 ,  A61N5/1049 ,  G16H50/50 ,  G06T11/008 ,  G06T7/20 ,  G06T7/0012 ,  A61N2005/1062 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/10124 ,  G06T2207/30241 ,  G06T2211/412

    Abstract: A computer implemented method for determining a two dimensional DRR referred to as dynamic DRR based on a 4D-CT, the 4D-CT describing a sequence of three dimensional medical computer tomographic images of an anatomical body part of a patient, the images being referred to as sequence CTs, the 4D-CT representing the anatomical body part at different points in time, the anatomical body part comprising at least one primary anatomical element and secondary anatomical elements, the computer implemented method comprising the following steps: acquiring the 4D-CT; acquiring a planning CT, the planning CT being a three dimensional image used for planning of a treatment of the patient, the planning CT being acquired based on at least one of the sequence CTs or independently from the 4D-CT, acquiring a three dimensional image, referred to as undynamic CT, from the 4D-CT, the undynamic CT comprising at least one first image element representing the at least one primary anatomical element and second image elements representing the secondary anatomical elements; acquiring at least one trajectory, referred to as primary trajectory, based on the 4D-CT, the at least one primary trajectory describing a path of the at least one first image element as a function of time; acquiring trajectories of the second image elements, referred to as secondary trajectories, based on the 4D-CT; for the image elements of the undynamic CT, determining trajectory similarity values based on the at least one primary trajectory and the secondary trajectories, the trajectory similarity values respectively describing a measure of similarity between a respective one of the secondary trajectories and the at least one primary trajectory; determining the dynamic DRR by using the determined trajectory similarity values, and, in case the planning CT is acquired independently from the 4D-CT, further using a transformation referred to as planning transformation from the undynamic CT to the planning CT, at least a part of image values of image elements of the dynamic DRR being determined by using the trajectory similarity values.

    DETERMINING AN AVOIDANCE REGION FOR A REFERENCE DEVICE
    264.
    发明公开
    DETERMINING AN AVOIDANCE REGION FOR A REFERENCE DEVICE 审中-公开

    公开(公告)号：US20230293235A1

    公开(公告)日：2023-09-21

    申请号：US18010702

    申请日：2021-08-12

    Applicant: Brainlab AG

    Inventor： Jörg UHDE

    IPC: A61B34/10 ,  A61B90/00

    CPC classification number: A61B34/10 ,  A61B90/39 ,  A61B2034/107 ,  A61B2034/2055

    Abstract: A computer-implemented method plans a position of a tracking reference device for referencing a position in a medical environment. The method includes a determination of avoidance regions in which a tracking reference device should not be placed so as to safeguard proper tracking of the tracking reference device and/or an instrument tracking reference device which is attached to a medical instrument. The avoidance region is a region lying, from the point of view of a tracking device for tracking the tracking reference device, in the shadow of an envelope surrounding at least one medical instrument. Additionally or alternatively, an avoidance region may lie in between the position of the tracking device and the envelope to avoid a shadowing, by the tracking reference device, of an instrument tracking reference device attached to the medical instrument. Information describing the position of the at least one avoidance region is displayed to a user, and also information about the position of a region which is suitable for placement of the tracking reference device can be displayed to the user.

    MICROSCOPE CAMERA CALIBRATION
    267.
    发明公开
    MICROSCOPE CAMERA CALIBRATION 审中-公开

    公开(公告)号：US20230260158A1

    公开(公告)日：2023-08-17

    申请号：US18009436

    申请日：2020-08-10

    Applicant: Brainlab AG

    Inventor： Sebastian STOPP ,  Johannes MANUS

    IPC: G06T7/80 ,  A61B90/20

    CPC classification number: G06T7/85 ,  A61B90/20 ,  A61B2034/2065 ,  G06T2207/10056

    Abstract: The present disclosure relates to a computer-implemented method for calibrating an optical system of a surgical microscope, a corresponding computer program, a computer-readable storage medium storing such a program and a computer executing the program, as well as a medical system comprising an electronic data storage device and the aforementioned computer. The present disclosure further relates to a computer-implemented method, a computer program and a system for determining the spatial position of an object to be tracked not only via the surgical microscope, but also via a separate detection system. In case a deviation between the detected spatial positions is recognized, the optical system of the surgical microscope is re-calibrated.

    CRANIAL IMMOBILIZATION SYSTEM
    268.
    发明公开
    CRANIAL IMMOBILIZATION SYSTEM 审中-公开

    公开(公告)号：US20230240786A1

    公开(公告)日：2023-08-03

    申请号：US18128024

    申请日：2023-03-29

    Applicant: Brainlab AG

    Inventor： Manuel WORTMANN ,  Andreas BEREKET

    IPC: A61B90/18 ,  A61B90/14

    CPC classification number: A61B90/18 ,  A61B90/14 ,  A61B2090/101

    Abstract: A head immobilization system for immobilizing a patient's head in a supine position of the patient includes a support rail structure adapted to be coupled to a patient rest. The system can further include a mask frame adapted to be coupled to at least one deformable upper mask sheet. The mask frame is releasably connected to the support rail structure via a first interface section and a second interface section, with at least two pins protruding from the first interface section in a first direction, and at least two pin-receptions provided at the second interface section. Each one of the pin-receptions receives one of the pins. A catch-mechanism for each pin-reception and each corresponding pin allows the pin to be pushed further into the pin-reception in the first direction, but interlocks in case of an attempted withdrawal of the pin from the pin-reception in a second, opposite direction.

    ROBOTIC MANIPULATION OF MEDICAL CARRIER STRUCTURES
    269.
    发明公开
    ROBOTIC MANIPULATION OF MEDICAL CARRIER STRUCTURES 审中-公开

    公开(公告)号：US20230225805A1

    公开(公告)日：2023-07-20

    申请号：US18009547

    申请日：2020-07-06

    Applicant: Brainlab AG

    Inventor： Sebastian STOPP ,  Nils FRIELINGHAUS

    IPC: A61B34/30 ,  A61B90/50

    CPC classification number: A61B34/30 ,  A61B90/50 ,  A61B2090/508

    Abstract: The present disclosure relates to a system and a computer-implemented medical method for manipulating at least one first, non-motorized medical carrier structure via a second, motorised medical carrier structure, wherein the second, motorized medical carrier structure is adapted to engage the first, non-motorized carrier structure to subsequently move a predefined section of the non-motorized carrier structure to a desired target position. The present disclosure further relates to a corresponding computer program and a corresponding medical system.

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