Patents by Inventor Alexander Gemmel

Alexander Gemmel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10842456
    Abstract: A method for determining an alignment between at least two bone parts of an elongated bone system of a patient includes recording a plurality of partially spatially overlapping projection images by a recording system of an x-ray device during a translational movement of the x-ray device or the recording system in a direction of or parallel to a longitudinal axis of the bone system. Tomosynthesis image data of the bone parts is reconstructed from the recorded projection images, and an alignment angle between the at least two bone parts is determined or estimated at least partially based on the reconstructed tomosynthesis image data and/or the plurality of projection images.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 24, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Benedict Swartman, Wei Wei, Markus Weiten, Qiao Yang
  • Publication number: 20200320755
    Abstract: A method for establishing a three-dimensional tomosynthesis data record of a target volume from two-dimensional projection images recorded with a recording arrangement including an X-ray source and an X-ray detector in different recording geometries is provided. During or after a reconstruction step, a deconvolution technique is used for reducing image artifacts of the tomosynthesis data record occurring due to lacking information. The projection images are recorded along a linear recording trajectory of the X-ray source. The reconstruction and the use of the deconvolution technique take place in a plurality of different two-dimensional reconstruction planes that are spanned by the recording trajectory and, in each case, a definition point in the target volume.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Holger Kunze, Jessica Magaraggia, Markus Weiten
  • Publication number: 20200305832
    Abstract: A method for increasing accuracy of positioning an X-ray device relative to an examination subject using a camera system includes recording a first data set, acquiring original positioning information pertaining to the X-ray device and specifying a target position of the X-ray device relative to the original position. The X-ray device is positioned out of the original position into a first approach position using the original positioning information, and a second data set is recorded. A deviation between the target position and the first approach position is determined by a reconciliation between the first data set and the second data set. The X-ray device is positioned out of the first approach position into a second approach position using the determined deviation.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Bjoern Kreher, Holger Kunze, Jessica Magaraggia, Markus Weiten
  • Publication number: 20200268334
    Abstract: The disclosure relates to a method for recording a panorama dataset of an examination object by a movable medical x-ray device, to a medical x-ray device, and to a computer program product for carrying out the method. The medical x-ray device has an x-ray source, which emits a bundle of x-rays, wherein a first image segment, which maps at least one part of the examination object, is recorded at a first point in time. Position data is acquired, which maps the spatial position of the x-ray device at this first point in time. At least one further image segment along an imaging path is recorded after there has been a movement of the x-ray device, wherein the imaging path lies in one plane, wherein a central ray of the bundle of x-rays emitted by the x-ray source does not run in parallel to the plane in which the imaging path lies. Additionally, position data is acquired, which maps the spatial position of the x-ray device at the time of the recording of the at least one further image segment.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 27, 2020
    Inventors: Alexander Gemmel, Bjoern Kreher, Holger Kunze, Markus Weiten, Jessica Magaraggia, Gerhard Kleinszig, Tobias Lenich, Edgar Zaus
  • Patent number: 10751010
    Abstract: The disclosure relates to a mobile X-ray device having an equipment cart that is movable on wheels and has a lifting device on which a support assembly is arranged. A C-arm is mounted to the support assembly so as to be displaceable along the circumference of the support assembly, wherein the C-arm has an X-ray source and an X-ray receiver arranged opposite the X-ray source. In order to simplify the handling of a mechanical zoom on mobile X-ray devices, a motion controller is provided by which, in any given pose of the C-arm, a movement of the C-arm is controlled in such a way that the central axis extending between X-ray source and X-ray receiver is fixed in space.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Wei Wei, Markus Weiten
  • Patent number: 10706546
    Abstract: A method is provided for operating a medical imaging device when performing an imaging examination. In order to allow an improved preparation of images in the context of such an imaging examination, the method includes: providing an original image of a body region; recording an updated image of the body region; and generating a three-dimensional subsequent image from the original image and from the updated image using a previously trained artificial neural network.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: July 7, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Holger Kunze, Jessica Magaraggia, Stefan Schneider, Markus Weiten
  • Patent number: 10687900
    Abstract: In a method of image support for a person carrying out a minimally invasive procedure with an instrument in a procedure site of a patient, one two-dimensional X-ray image respectively of the procedure site is recorded by an X-ray apparatus in at least two recording geometries implementing different projection directions and chosen specific to the procedure, in particular by the person. A three-dimensional model data set of the procedure region is reconstructed by iterative reconstruction from the X-ray images. At least one two-dimensional supporting image corresponding to one of the recording geometries is determined by incorporating at least one item of further information by re-projection of the model data set supplemented by the further information and is displayed for the user.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 23, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Bjoern Kreher, Gerhard Kleinszig, Markus Weiten
  • Patent number: 10674979
    Abstract: The invention relates to a mobile C-arm system (C1), at least comprising at least three wheels, at least two wheels each having an electric motor, wherein the electric motor has a stator (S) and a rotor (R), the stator (S) being connected to a wheel suspension (T) of the wheel and the rotor (R) being surrounded peripherally by a running wheel (L).
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: June 9, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Jens Fehre, Alexander Gemmel, Andreas Limmer, Ralf Nanke
  • Patent number: 10653386
    Abstract: An apparatus and a method are provided for positioning an x-ray machine having an x-ray source and a detector. A second X-ray image is recorded once an x-ray apparatus has been positioned by using information of an alignment point in a first x-ray image.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 19, 2020
    Assignee: Siemens Healthcare GMBH
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Wei Wei, Markus Weiten
  • Patent number: 10634624
    Abstract: The device relates to a method and a device (10) for determining an irradiation plan for a particle irradiation unit (20). In the method, a target volume (6) within a test object (14; 18) is irradiated with a particle beam (16) using the particle irradiation unit (20) according to the irradiation plan. The radiation plan is determined in order to apply the energy of the particle beam (16) according to a predetermined dose distribution in the target volume (6), the target volume (6) and the predetermined dose distribution being pre-set. When determining the irradiation plan, irradiation duration is also taken into account, the irradiation plan being determined such that the irradiation duration is as short as possible.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 28, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thilo Elsässer, Alexander Gemmel, Thomas Hansmann, Eike Rietzel
  • Publication number: 20200113534
    Abstract: Evaluating a reliability of a computed tomography (CT) volume image includes acquiring a first CT volume image and a modified CT volume image that are reconstructed from scanned projection images. From the first CT volume image and the modified CT volume image, digitally reconstructed X-ray images are then calculated. A respective similarity with a corresponding one of the scanned projection images is then determined. Based on a comparison of these similarities with one another, a reliability of the CT volume images is then evaluated.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 16, 2020
    Inventors: Peter Fischer, Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Holger Kunze, Jessica Magaraggia, Stefan Schneider, Markus Weiten
  • Patent number: 10614917
    Abstract: A medical apparatus has a plurality of movable elements that are remotely displaced. A display device receives inputs for positioning the movable elements from a user. A computing device that is coupled to the display device displays a model of the medical apparatus on the display device. The movable elements are displayed in the model in accordance with the received inputs for positioning. In response to a trigger signal of the user for moving the movable elements, the movable elements are driven so as to adopt the displayed position.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 7, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Hans Schweizer, Wei Wei, Markus Weiten
  • Publication number: 20190392582
    Abstract: A method is provided for operating a medical imaging device when performing an imaging examination. In order to allow an improved preparation of images in the context of such an imaging examination, the method includes: providing an original image of a body region; recording an updated image of the body region; and generating a three-dimensional subsequent image from the original image and from the updated image using a previously trained artificial neural network.
    Type: Application
    Filed: June 17, 2019
    Publication date: December 26, 2019
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Holger Kunze, Jessica Magaraggia, Stefan Schneider, Markus Weiten
  • Patent number: 10413367
    Abstract: The invention describes a method of performing intraoperative navigation during a surgical procedure, which method comprises the steps of arranging a video imaging device on a radioscopic imaging apparatus; obtaining an initial radioscopic image of a target and identifying a desired trajectory in a target; determining a first position of the radioscopic imaging apparatus relative to the target for which a central image axis of a radioscopic imaging unit is aligned with the desired trajectory; positioning the radioscopic imaging apparatus to align a central image axis of the video imaging device with the desired trajectory; and showing a live video feed of the surgical procedure on a monitor to track the position of a surgical implement relative to the desired trajectory.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 17, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Wei Wei, Markus Weiten, Christoph Tilgener
  • Publication number: 20190117180
    Abstract: A method for determining an alignment between at least two bone parts of an elongated bone system of a patient includes recording a plurality of partially spatially overlapping projection images by a recording system of an x-ray device during a translational movement of the x-ray device or the recording system in a direction of or parallel to a longitudinal axis of the bone system. Tomosynthesis image data of the bone parts is reconstructed from the recorded projection images, and an alignment angle between the at least two bone parts is determined or estimated at least partially based on the reconstructed tomosynthesis image data and/or the plurality of projection images.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 25, 2019
    Inventors: Alexander Gemmel, Gerhard Kleinszig, Björn Kreher, Benedict Swartman, Wei Wei, Markus Weiten, Qiao Yang
  • Patent number: 10252082
    Abstract: A method is disclosed for irradiation planning for the irradiation of a moving target volume located in a body with a particle beam irradiation facility by means of rescanning, which method has the steps of defining the target volume in a reference condition of the motion, dividing the target volume among a plurality of target points that can be individually approached with a particle beam, calculating a nominal dose to be deposited in each of the target points of the target volume, defining a number of rescanning passes in which each of the target points of the target volume are approached, calculating a mean motion to be expected of the target points of the target volume based on a motion model, taking into account the mean motion to be expected of the target points of the target volume in the irradiation planning in such a manner that the deviation of the expected dose deposition from the nominal dose for each target point is determined, and the nominal dose for each target point is corrected on the basis
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 9, 2019
    Assignee: GSI Helmholtzzentrum für Schwerionenforschung GmbH
    Inventors: Christoph Bert, Alexander Gemmel, Dirk Müssig, Robert Lüchtenborg
  • Patent number: 10166404
    Abstract: Method for irradiation planning of a target volume with a scanned particle beam, comprising the following steps: defining a target volume located in a body, subdividing the target volume into a plurality of individually approachable target points, defining a number of temporally consecutive irradiation sub-plans, dividing the target points of the target volume among the irradiation sub-plans in subsets, wherein the subsets are distributed over the entire target volume, and wherein mutually adjacent target points of the target volume are each assigned to different irradiation sub-plans.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: January 1, 2019
    Assignee: GSI Helmholtzzentrum fur Schwerionenforschung GmbH
    Inventors: Alexander Gemmel, Christoph Bert
  • Patent number: 10165998
    Abstract: A method and a system for determining an angle between two parts of a bone that are twisted relative to one another about the axis of a bone shaft. The system is particularly suitable for determining the antetorsion angle of a femur. In order to determine an antetorsion angle of a bone easily intraoperatively, a method with the following steps is proposed: establishing the position of a first orientation feature assigned to a first part of the bone, in particular a femoral neck axis, using an imaging method, establishing the position of a second orientation feature assigned to a second part of the bone, in particular a condyle tangent or a condyle plane, using an imaging method, and determining the angle, in particular the femoral antetorsion angle, from the positions of the two orientation features.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: January 1, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Barth, Alexander Gemmel, Gerhard Kleinszig, Wei Wei, Markus Weiten
  • Publication number: 20180279981
    Abstract: The invention relates to a mobile C-arm system (C1), at least comprising at least three wheels, at least two wheels each having an electric motor, wherein the electric motor has a stator (S) and a rotor (R), the stator (S) being connected to a wheel suspension (T) of the wheel and the rotor (R) being surrounded peripherally by a running wheel (L).
    Type: Application
    Filed: August 9, 2016
    Publication date: October 4, 2018
    Inventors: Jens Fehre, Alexander Gemmel, Andreas Limmer, Ralf Nanke
  • Patent number: 10076295
    Abstract: A mobile C-arm system contains a main unit having a relocation apparatus for moving the main unit in a horizontal movement direction and a C-arm which is movable at least in the orbital and angular movement direction, a data processing unit having a memory for storing programs which are executed during operation, and a control and display system, connected to the main unit with operating and display elements. A plurality of sensors are provided for capturing at least part of the immediate environment of the C-arm. A control system is present, which is configured to warn against an obstacle in the intended or actual movement direction on the basis of the environment captured by at least one sensor, in dependence on an intended or actual movement of the main unit and/or at least part of the main unit in a movement direction.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: September 18, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: Alexander Gemmel, Sultan Haider