Patents by Inventor Stephan Froehlich

Stephan Froehlich 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).

  • Publication number: 20100278414
    Abstract: The present invention relates to a method for determining preferred alignments of a treatment beam generator, which is suitable for irradiating an object, relative to a body, wherein the visibility of the object in at least one image is taken into account when determining the preferred alignments, wherein the image is obtained by means of at least one imaging device, the position of which relative to the treatment beam generator is known and invariable.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 4, 2010
    Inventors: Kajetan Berlinger, Stephan Froehlich
  • Patent number: 7818838
    Abstract: The invention concerns a patient positioning system for radiotherapy, comprising a device for positioning a patient within the framework of treatment planning, using image detection and/or carrying out radiation treatment, comprising a patient bed (3, 42, 50) on which a patient is positioned, wherein means are provided by which the same bed (3, 42, 50) may be arranged both on a planning couch (8) for image detection within the framework of treatment planning as well as on a radiotherapy table (1, 44), and by providing a reference means (54) on the patient bed by which the position of the immobilised patient or of a marked radiation target is determined with respect to the patient bed (3, 42, 50). Within this framework, a corresponding method is also provided, as well as an adjusting means for the transport and the bed.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: October 26, 2010
    Assignee: BrainLAB AG
    Inventors: Stephan Erbel, Stephan Fröhlich
  • Patent number: 6865411
    Abstract: The invention concerns a patient positioning system for radiotherapy, comprising a device for positioning a patient within the framework of treatment planning, using image detection and/or carrying out radiation treatment, comprising a patient bed (3, 42, 50) on which a patient is positioned, wherein means are provided by which the same bed (3, 42, 50) may be arranged both on a planning couch (8) for image detection within the framework of treatment planning as well as on a radiotherapy table (1, 44), and by providing a reference means (54) on the patient bed by which the position of the immobilized patient or of a marked radiation target is determined with respect to the patient bed (3, 42, 50). Within this framework, a corresponding method is also provided, as well as an adjusting means for the transport and the bed.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: March 8, 2005
    Assignee: BrainLAB AG
    Inventors: Stephan Erbel, Stephan Fröhlich
  • Patent number: 6865253
    Abstract: A method for accurately positioning a patient for radiotherapy and/or radiosurgery, comprising the following steps: the patient is pre-positioned as accurately as possible with respect to a linear accelerator; at least two x-ray images of the patient and/or one of the parts of his body in the vicinity of the radiation target point are produced from different respective recording angles on a single image recorder; the x-ray image is spatially localized; at least one reconstructed image, corresponding to each x-ray image and deriving from a three-dimensional patient scan data set, is produced, the reconstructed images containing the desired image contents of the x-ray images when the patient is correctly positioned; and the real x-ray images are superimposed, and the positioning error is determined electronically and/or with computer guidance by way of particular landmarks and/or the intensity gradient or the contours in the two images; and the position of the patient is corrected by way of the determined posit
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: March 8, 2005
    Assignee: BrainLAB AG
    Inventors: Andreas Blumhofer, Stephan Fröhlich, Rainer Lachner, Cornel Schlossbauer
  • Patent number: 6792074
    Abstract: The invention relates to a method for producing or updating a radiotherapy plan within the framework of inversely planned radiotherapy, wherein an up-to-date radiotherapy plan is calculated at least partly on the basis of the results of an already existing, approved, older plan.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 14, 2004
    Assignee: BrainLAB AG
    Inventors: Stephan Erbel, Stephan Fröhlich
  • Patent number: 6731970
    Abstract: A method for breath compensation in radiation therapy, particularly radiotherapy/radiosurgery, wherein the movement of the target volume inside the patient is detected and tracked in real time during radiation by a movement detector. Adaptation to the movement of the target volume inside the patient is achieved by one or more components of a radiotherapy apparatus to compensate for or take into consideration the movement during treatment.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 4, 2004
    Assignee: BrainLAB AG
    Inventors: Cornel Schlossbauer, Stephan Erbel, Stephan Fröhlich
  • Patent number: 6719683
    Abstract: An inverse planning method and apparatus for radiotherapy treatment of a target volume in a body are characterized by using a computer to calculate the results (dose distribution) of multiple treatment solutions (proposed radiation beam arrangements); and simultaneously displaying the calculated results for at least two of the treatment solutions for comparison by a treatment planner to enable the treatment planner to select a desired one of the treatment solutions.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 13, 2004
    Assignee: BrainLAB AG
    Inventor: Stephan Fröhlich
  • Patent number: 6611700
    Abstract: The present invention relates to a method for positioning a body (1) for radiation comprising the steps: inserting a position sensor (6) into the body (1); detecting the position of the sensor (6) relative to a point or volume (2) to be irradiated, and positioning the body (1) using signals sensed by the position sensor (6) so that the point or volume (2) to be irradiated is located in a specific site circumscribing an isocenter (3). It also relates to an apparatus for positioning a body (1) including a position sensor (6), which may be placed into the body (1); a controllable patient bench (9) for moving the body (1); a controller (8) which controls the controllable patient bench (9) for moving the body (1) depending on the signals sensed by the position sensor (6).
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 26, 2003
    Assignee: BrainLAB AG
    Inventors: Stefan Vilsmeier, Stephan Fröhlich
  • Patent number: 6516046
    Abstract: A method for exact positioning of a patient for radiotherapy or radiosurgery comprising the following steps: a) pre-positioning the patient relative to a linear accelerator, b) producing at least one X-ray image of the patient or one of his/her body parts in the vicinity of the radiation treatment target, c) mapping the X-ray image, d) generating at least one reconstructed image from a three-dimensional set of patient scanning data corresponding to said X-ray image, especially isocentrically, e) superimposing the reconstructed image and the X-ray image, and detecting the positional error electronically or computer-controlled on the basis of specific landmarks in both images, and f) correcting the position of the patient on the basis of the detected positional error.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: February 4, 2003
    Assignee: BrainLAB AG
    Inventors: Stephan Fröhlich, Cornel Schlossbauer, Andreas Blumhofer