Patents by Inventor Bert Bracke

Bert Bracke 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: 10342619
    Abstract: The present invention relates to a method for determining the mechanical axis of a bone using an electronic device which is rigidly attached to the bone and comprises a video camera, wherein: the mechanical axis is determined from the positions of two points which define the mechanical axis; the first of the two points is determined as the center of rotation when the bone is pivoted about the first point, the center of rotation being determined from an output signal of the camera which captures a stationary marker device; and the second point is the exit point of the mechanical axis on the outer surface at the opposite end of the bone to the first point.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: July 9, 2019
    Assignee: Brainlab AG
    Inventors: Bert Bracke, Christian Brack, Timo Neubauer, Manuel Millahn
  • Publication number: 20180214213
    Abstract: A tracking reference fixation support configured to fasten a medical tracking reference to a patient's head, the fixation support comprising an elastically deformable base-plate having a bottom surface, the base-plate being configured to rest via the bottom surface against the surface of a patient's head; an interface-plate providing an interface for rigidly attaching a medical tracking reference to the fixation support; and at least one joint that couples the interface-plate to the base-plate, which allows the base-plate to deform while the interface-plate remains substantially dimensionally stable. The invention further relates to a corresponding tracking reference headband and to a corresponding method of providing a patient's head with a tracking reference.
    Type: Application
    Filed: May 20, 2016
    Publication date: August 2, 2018
    Inventors: Tobias NEUN, Norman PLASSKY, Stefanie SCHIELE, Christian LECHNER, Bert BRACKE
  • Publication number: 20140225999
    Abstract: The present invention relates to a method for determining the mechanical axis of a bone using an electronic device which is rigidly attached to the bone and comprises a video camera, wherein: the mechanical axis is determined from the positions of two points which define the mechanical axis; the first of the two points is determined as the centre of rotation when the bone is pivoted about the first point, the centre of rotation being determined from an output signal of the camera which captures a stationary marker device; and the second point is the exit point of the mechanical axis on the outer surface at the opposite end of the bone to the first point.
    Type: Application
    Filed: June 15, 2011
    Publication date: August 14, 2014
    Applicant: Brainlab AG
    Inventors: Bert Bracke, Christian Brack, Timo Neubauer, Manuel Millahn
  • Publication number: 20120330135
    Abstract: A method for providing positional relationship data, which represent the position of a marker device relative to a bone which it is affixed to, to a medical navigation system, comprising the steps of: a) receiving bone registration data which represent locations of points on the surface of the bone; b) calculating, from the bone registration data, the current relative position between the bone and a medical instrument which bears the marker device; c) determining an offset between the current relative position and a desired relative position; d) outputting indication information which is based on the calculated offset; e) receiving bone re-registration data which represent locations of points on the surface of the bone; and f) calculating the positional relationship data from the bone re-registration data.
    Type: Application
    Filed: March 3, 2010
    Publication date: December 27, 2012
    Inventors: Manuel Millahn, Bert Bracke, Christian Brack