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公开(公告)号：US20230035624A1
公开(公告)日：2023-02-02
申请号：US16957430
申请日：2019-07-08
Applicant: Brainlab AG
Inventor： Kajetan BERLINGER , Hagen KAISER
Abstract: A computer-implemented medical method of determining a breathing signal of a patient is disclosed. The method includes determining a motion trajectory of a structure associated with at least one body part of the patient, the motion trajectory being indicative of a respiratory movement of the structure, acquiring surface data representative of a position of a surface region of the patient, computing an intersection of the determined motion trajectory and the acquired surface data, and determining a breathing signal of the patient based on the computed intersection. The breathing signal is indicative of a breathing state of the patient.
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公开(公告)号：US20230145557A1
公开(公告)日：2023-05-11
申请号：US17046077
申请日：2019-08-13
Applicant: Brainlab AG
Inventor： Kajetan BERLINGER , Hagen KAISER , Michael STEAD
CPC classification number: A61N5/1049 , A61B6/488 , A61N2005/1059
Abstract: The present invention relates to a computer-implemented medical method for monitoring a spatial position of a patient's body part, wherein at least one optimum spatial direction for a line of sight of a check x-ray-image is determined, that qualifies for quantifying a deviation of the spatial position of the patient's body part from a target spatial position for the patient's body part. The present invention further relates to a corresponding computer program and a corresponding medical system.
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公开(公告)号：US20220071708A1
公开(公告)日：2022-03-10
申请号：US17527621
申请日：2021-11-16
Applicant: Brainlab AG
Inventor： Jochen VEIGEL , Ivana IVANOVSKA , Hagen KAISER , Pablo APONTE
Abstract: First and second skeleton model data is determined based on first and second surface data of a patient. Each of the skeleton model data describes geometries of rigid anatomic structures of a patient at a different point in time. Skeleton difference data is determined describing differences between the geometries of the rigid anatomic structures. In a next step, movement instruction data is determined which describes movement to be performed by the rigid anatomic structures to minimize the differences, i.e. to correct the posture of the patient. The movement instruction data is for example determined based on anatomy constraint data which describes anatomical movement constraints for the rigid anatomic structures (e.g. range of motion of a joint). An instruction is displayed (e.g. using augmented reality), guiding the user how to move the rigid anatomic structures so as to correct the patient's posture.
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公开(公告)号：US20210060359A1
公开(公告)日：2021-03-04
申请号：US16991176
申请日：2020-08-12
Applicant: Brainlab AG
Inventor： Kajetan BERLINGER , Hagen KAISER
Abstract: Disclosed is a method for determining a positional pattern of an irradiation unit for irradiating a patient with treatment radiation. Optimal order data describing an order of the irradiation unit positions for which the statistical value is optimal is determined. The optimal order data is determined based on irradiation unit position data describing irradiation unit positions of the irradiation unit for which the imaging device has a free viewing direction onto the position of the patient, position orders data describing all possible orders of the irradiation unit positions for which the imaging device has a free viewing direction onto the position of the patient, and intersection angle data describing a statistical quantity of the intersection angles between free viewing directions of the imaging unit for irradiation unit positions which are immediately subsequent in the order described by the position orders data.
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5.发明申请公开(公告)号：US20220172394A1
公开(公告)日：2022-06-02
申请号：US17671384
申请日：2022-02-14
Applicant: Brainlab AG
Inventor： Pablo APONTE , Jochen VEIGEL , Ivana IVANOVSKA , Hagen KAISER
Abstract: A method for determining the relative position between a first camera and a second camera used in a medical application, wherein the first camera captures a 2D image of a phantom, the second camera emits light onto the phantom and analyzes the reflected light, thus generating a 3D point cloud representing points on the surface of the phantom, and the phantom has a planar surface forming a background on which a plurality of 2D markers are formed, wherein one of the background and the 2D markers is reflective, thus reflecting light emitted by the second camera back to the second camera, and the other one is non-reflective, thus not reflecting light emitted by the second camera back to the second camera, the method involving that a) the first camera captures a 2D image of the phantom, b) the second camera generates a 3D point cloud representing the planar surface of the phantom, c) the 2D markers are identified in the 2D image, thus obtaining 2D marker data representing the locations of the 2D markers in the 2D image, d) the 2D markers are identified in the 3D point cloud using the property that points on a non-reflective part of the planar surface are identified as having a larger distance to the second camera than points on a reflective part of the planar surface, thus obtaining 3D marker data representing the locations of the 2D markers in a reference system of the second camera, and e) finding the relative position between the first camera and the second camera by applying a Perspective-n-Points algorithm on the 2D marker data and the 3D marker data.
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Patent Agency Ranking
公开(公告)号：US20210339050A1
公开(公告)日：2021-11-04
申请号：US17255558
申请日：2019-07-08
Applicant: Brainlab AG
Inventor： Hagen KAISER , Michael STEAD
IPC: A61N5/10
Abstract: A method of positioning a patient for a radiation treatment and/or of monitoring a position of a patient during a radiation treatment is provided. The method includes providing surface data acquired using a 3D surface scanner of a surface of at least a body part of the patient that is to be irradiated in a radiation treatment. The surface data are calibrated with respect to a relative position of the 3D surface scanner and an isocenter position of a radiation treatment apparatus. A beam path and/or frustum of a radiation beam is determined based on planning data for the radiation treatment and intersected with at least a part of the surface of the patient represented by the surface data. Further, at least a first portion of the patient's surface located inside the beam path and/or a second portion of the patient's surface located outside the beam path is calculated.
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公开(公告)号：US20200375661A1
公开(公告)日：2020-12-03
申请号：US16760922
申请日：2017-12-07
Applicant: Brainlab AG
Inventor： Jochen VEIGEL , Ivana IVANOVSKA , Hagen KAISER , Pablo APONTE
Abstract: First and second skeleton model data is determined based on first and second surface data of a patient. Each of the skeleton model data describes geometries of rigid anatomic structures of a patient at a different point in time. Skeleton difference data is determined describing differences between the geometries of the rigid anatomic structures. In a next step, movement instruction data is determined which describes movement to be performed by the rigid anatomic structures to minimize the differences, i.e. to correct the posture of the patient. The movement instruction data is for example determined based on anatomy constraint data which describes anatomical movement constraints for the rigid anatomic structures (e.g. range of motion of a joint). An instruction is displayed (e.g. using augmented reality), guiding the user how to move the rigid anatomic structures so as to correct the patient's posture.
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公开(公告)号：US20190111279A1
公开(公告)日：2019-04-18
申请号：US16090607
申请日：2016-05-04
Applicant: Brainlab AG
Inventor： Kajetan BERLINGER , Hagen KAISER
Abstract: A method and system supports pre-positioning a patient for treatment by radiotherapy or radiosurgery. The disclosed method encompasses comparing an image of a reference structure having a known position relative to an anatomical body part of a patient, such as a live thermal/infrared image of the reference structure, to a predetermined medical image of the reference structure associated with a known position relative to a reference position, such as a known isocenter of a radiotherapy or radiosurgery apparatus. On that basis, it is determined whether the reference structure has moved relative to the reference position. A decision may be made to determine whether the reference structure and therefore the patient has been correctly positioned and/or kept in his desired position relative to a treatment device, and to compensate for any possible positional deviation by moving the patient.
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公开(公告)号：US20180047183A1
公开(公告)日：2018-02-15
申请号：US15547721
申请日：2016-06-29
Applicant: Brainlab AG
Inventor： Kajetan BERLINGER , Hagen KAISER
CPC classification number: G06T7/74 , A61B6/0407 , A61B6/4085 , A61B6/5229 , A61B6/5235 , A61N5/103 , A61N5/1039 , A61N5/1049 , A61N2005/1062 , G06T7/33 , G06T19/20 , G06T2207/10004 , G06T2207/10081 , G06T2207/10116 , G06T2207/20092 , G06T2207/20221 , G06T2207/30004 , G06T2207/30168 , G06T2210/41 , G06T2219/2004 , G06T2219/2016
Abstract: A computer implemented method for performing fusion of 3D image data, which represent at least a part of a patient's body, with two 2D images of the patient's body with a known spatial relation between the viewing directions of the 2D images, comprising the steps of: -acquiring the 3D image data, -acquiring the two 2D images, -calculating two virtual images from the 3D image data, the two virtual images corresponding to the two 2D images, -classifying the two 2D images into a primary and a secondary image, -determining a primary alignment between the primary image and the corresponding virtual image such that they match, -calculating a spatial axis relative to the viewing directions of the two 2D images from the primary alignment and a predetermined point which is imaged in the virtual image which corresponds to the primary image, wherein the spatial axis is a line in space on which the predetermined point lies, and -performing fusion of the 3D image data with the two 2D images based on the calculated spatial axis in order to obtain a virtual position of the 3D image data in space.
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公开(公告)号：US20170354330A1
公开(公告)日：2017-12-14
申请号：US15527651
申请日：2015-04-28
Applicant: Brainlab AG
Inventor： Hagen KAISER , Kajetan BERLINGER
Abstract: A data processing method performed by a computer for determining breathing signal data which represents a breathing cycle of a patient, comprising the steps of: acquiring image data representing a sequence of training thermal images of at least a part of the surface of the patient's body over time, the sequence covering at least one half breathing cycle and being captured by a thermographic camera; and tracking at least one tracked point in the image data over the sequence of training thermal images to find a trajectory of the tracked point as the breathing signal data, wherein the tracked point is a point on the surface of the patient's body.
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