Integration of surgical instrument and display device for assisting in image-guided surgery

    公开(公告)号:US10368851B2

    公开(公告)日:2019-08-06

    申请号:US15623320

    申请日:2017-06-14

    Applicant: Brainlab AG

    Abstract: The invention relates to a surgical instrument comprising a handle portion or mounting portion and a functional portion and/or tip, wherein a display device is provided on the instrument and includes or enables displays which serve to assist in image-guided and/or navigation-assisted surgery. It also relates to a method for navigating a surgical instrument, wherein its position is determined and tracked by means of a medical tracking system and the position data is processed within the framework of medical navigation by means of a medical navigation system, wherein displays for navigation assistance and/or for assisting in image-guided surgery are provided on the instrument or on an element which is positionally assigned to the instrument or fastened to the instrument.

    Method and apparatus for determining implant positions of two medical implant components forming a joint

    公开(公告)号:US10327848B2

    公开(公告)日:2019-06-25

    申请号:US15034047

    申请日:2013-12-17

    Applicant: Brainlab AG

    Inventor: Hubert Götte

    Abstract: A data processing method, performed by a computer, for determining implant positions of two implant components relative to two bones, wherein each of the implant components is to be attached to one of the bones such that the implant components form a joint between the bones, and wherein an implant position is a relative position between the implant component and the corresponding bone, said method comprising the steps of: a) acquiring a set of target poses, wherein a target pose represents a relative position to be achieved between the two bones; b) calculating a set of virtual poses for a pair of virtual test implant positions, wherein the set of virtual poses comprises one virtual pose for each of the target poses and wherein a virtual pose represents a relative position between the two bones if the virtual test implant positions were applied as the implant positions; c) calculating a pose deviation value for each of the target poses, wherein a pose deviation value represents the difference between a target pose and the corresponding virtual pose; d) calculating an overall pose deviation value from all the individual pose deviation values; e) repeating steps b) to d) for different pairs of virtual test implant positions until the overall pose deviation value fulfills a minimization criterion; and f) using the pair of virtual test implant positions for which the minimization criterion is fulfilled as the implant positions.

    Matching patient images and images of an anatomical atlas

    公开(公告)号:US10262418B2

    公开(公告)日:2019-04-16

    申请号:US15608199

    申请日:2017-05-30

    Applicant: Brainlab AG

    Abstract: A matching transformation is determined for matching a patient image set of images of an anatomical body structure of a patient with an atlas image set of images of a general anatomical structure including anatomical atlas elements. Atlas spatial information containing spatial information on the general anatomical structure, and element representation information are obtained. The element representation information describes representation data sets which contain information on representations of the plurality of atlas elements in the atlas images to be determined are obtained, and also describes a determination rule for determining respective representation data sets for respective atlas elements in accordance with different respective parameter sets. Patient data is acquired by acquiring the patient image set and the parameter sets which are respectively associated with the images of the patient image set. The matching transformation is determined by matching images associated with the same parameter set to each other.

    Adaptation of image data sets to an updated atlas-based reference system

    公开(公告)号:US10249041B2

    公开(公告)日:2019-04-02

    申请号:US15547723

    申请日:2015-02-26

    Applicant: Brainlab AG

    Inventor: Balint Varkuti

    Abstract: The invention relates to a computer-implemented medical data processing method for determining a mapping of medical image content into a reference system, the method comprising executing, on a processor of a computer, steps of: a) acquiring, at the processor, medical image data describing a digital medical image of an anatomical structure of a patient's body; b) acquiring, at the processor, image attribute data describing attribute information associated with the medical image data, the attribute information including an indication of an initial reference system in which spatial relationships of the digital medical image are defined; c) acquiring, at the processor, reference system transformation data describing a spatial relationship (REG) between the initial reference system and a second reference system which is different from the initial reference system; d) determining, by the processor and based on the medical image data and the reference system transformation data, transformed image data describing a representation of the digital medical image in the second reference system.

    Determination of Dynamic DRRs
    196.
    发明申请

    公开(公告)号:US20190043224A1

    公开(公告)日:2019-02-07

    申请号:US16075431

    申请日:2016-02-16

    Applicant: Brainlab AG

    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.

    SYSTEMS AND METHOD FOR DETERMINING THE SHAPE OF A SURGICAL INSTRUMENT AND SURGICAL INSTRUMENTS HAVING A DEFORMABLE BODY

    公开(公告)号:US20190029761A1

    公开(公告)日:2019-01-31

    申请号:US16146514

    申请日:2018-09-28

    Applicant: Brainlab AG

    Abstract: A system and method for determining the spatial position and the shape of a surgical instrument (1) having a deformable body (2) by: providing an elasticity model of the surgical instrument (1); defining at least one parameter which influences the shape of the instrument (1); determining the spatial position and/or orientation of at least one tracking sensor (3) of the surgical instrument (1); determining the value of the at least one parameter; calculating the position and/or orientation of at least one part of the surgical instrument (1) with the aid of the elasticity model together with the determined value of the at least one parameter and the determined spatial position and/or orientation of the at least one tracking sensor (3). The present invention also relates to a surgical instrument (1) having a deformable body (2) comprising at least two sensors (3, 4), wherein at least one sensor is a tracking sensor (3) and at least one other sensor is a sensor (4) which allows the value of a predetermined parameter influences the shape of the instrument (1) to be determined.

    Radiotherapy feedback device
    199.
    发明授权

    公开(公告)号:US10143855B2

    公开(公告)日:2018-12-04

    申请号:US15713201

    申请日:2017-09-22

    Applicant: Brainlab AG

    Inventor: Stefan Vilsmeier

    Abstract: A radiotherapy feedback device is provided which provides one of a plurality of indication signals for presentation to a surgeon based on the status of a current surgical procedure. In some aspects, an indication signal is provided to the surgeon if the surgical procedure on an anatomical structure is of sufficient status so as to respond well to subsequent radiotherapy.

    Determination of Center of Rotation of a Bone
    200.
    发明申请

    公开(公告)号:US20180296133A1

    公开(公告)日:2018-10-18

    申请号:US15767336

    申请日:2015-12-11

    Applicant: Brainlab AG

    Abstract: A computer implemented method for determining a center of rotation of a bone, comprising the steps of: a) acquiring image data representing a plurality of images taken by a camera while the bone is being rotated about the center of rotation, wherein the images show a marker device attached to the bone; b) forming a plurality of image pairs from the image data, wherein each image pair comprises two different images; c) determining a first relative position of the marker device relative to the camera from a first image of an image pair; d) determining a second relative position of the marker device relative to the camera from a second image of the same image pair; e) calculating a transformation of the first relative position into the second relative position; f) repeating steps c) to e) for all image pairs to obtain a plurality of transformations; and calculating the location of the center of rotation of the bone relative to the marker device from the plurality of transformations.

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