Patents by Inventor Martin Hoheisel

Martin Hoheisel 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: 9901312
    Abstract: A medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: February 27, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: Philipp Bernhardt, Martin Hoheisel, Thomas Mertelmeier, Ralf Nanke, Marcus Radicke
  • Publication number: 20150196368
    Abstract: A method for assisting in navigation of a medical instrument such as a catheter inside a hollow body such as a vascular system based on a dataset provided by a sensor device of the medical instrument is provided The method includes determining, by a control device, an internal extent of the hollow body based on the provided dataset and determining, by the control device, a navigation path for an impending movement of the medical instrument through the hollow body based on the determined internal extent. The control device is able to generate a control signal that describes a movement along the navigation path.
    Type: Application
    Filed: January 10, 2015
    Publication date: July 16, 2015
    Inventors: Olivier Ecabert, Martin Hoheisel
  • Patent number: 8977342
    Abstract: The invention relates to a device for a medical intervention in or on moving tissue of a living being, said device having a medical instrument provided for the intervention, a position detection system by means of which the position of the medical instrument in the body of the living being can be determined, and at least one acceleration sensor for recording at least one movement of the instrument caused by the moving tissue. The invention also relates to a medical instrument for a medical intervention in or on moving tissue of a living being, said medical instrument having at least one acceleration sensor and a sensor of a position detection system, as well as to an operating method for the device.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: March 10, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Publication number: 20150031986
    Abstract: A medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.
    Type: Application
    Filed: August 28, 2013
    Publication date: January 29, 2015
    Inventors: Philipp Bernhardt, Martin Hoheisel, Thomas Mertelmeier, Ralf Nanke, Marcus Radicke
  • Patent number: 8649483
    Abstract: A method is described for producing a grating, in particular an absorption grating, having a grating constant of less than 100 ?m, by using a solution of superparamagnetic colloidal nanocrystal clusters (CNCs), a solvent liquid and a photocurable resin, with the following steps: —alignment of the CNCs in the solution by an external magnetic field, —exposure of the solution, so that the resin is cured and grating structures of an intended grating constant are formed, and —removal of the magnetic field.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: February 11, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Patent number: 8374309
    Abstract: An arrangement and a method are disclosed for projective and/or tomographic phase-contrast imaging using X-ray radiation. In at least one embodiment, one or more phase grids is/are arranged in the beam path such that during a rotation of the at least one X-ray source, the examination object is scanned with different spatial orientations of the grid lines relative to the examination object such that the complete refraction angle, and hence the complete phase shift gradient, can be determined for each X-ray beam from the two scans with differently oriented phase grids in order to be able to show the phase shift of an examination object in terms of projections or in a tomographic image.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: February 12, 2013
    Assignees: Siemens Aktiengesellschaft, Paul Scherrer Institut
    Inventors: Tilman Donath, Martin Hoheisel, Christian David, Eckhard Hempel, Franz Pfeiffer, Stefan Popescu
  • Patent number: 8361263
    Abstract: The invention relates to a device for protecting a display facility, comprising a protective element for covering an image surface of the display facility. As the protective element is designed to be transparent and the retaining means are provided for the exchangeable arrangement of the protective element in front of the image surface, a protective device is provided, which allows the image surface to be examined and is easy to operate.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: January 29, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Patent number: 8233967
    Abstract: A method is disclosed for marking and visualizing an implant by use of an x-ray phase-contrast tomography examination. Further, an implant is also disclosed. In at least one embodiment, implants are used with specific characteristics which are as unambiguous as possible with regard to the phase shift generated by the implants in a phase-contrast tomography examination. In at least one embodiment, these specific characteristics can include the typical self-generated specific phase shift, typical differences in the specific phase-shift values, or typical spatial structures of materials with well-defined phase-shift values.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: July 31, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Eckhard Hempel, Martin Hoheisel, Stefan Popescu, Rainer Raupach
  • Patent number: 8165270
    Abstract: In a method for the production of x-ray-optical gratings composed of a first material forming of periodically arranged grating webs and grating openings, a second material is applied by electroplating to fill the grid openings. The electroplating is continued until a cohesive layer of the second material with uniform height is created over the grating webs with this layer having a large absorption coefficient, the absorption properties of the grating structure of the grating are homogenized, so an improvement of the measurement signals that are generated with this grating is improved. Moreover, the mechanical stability of gratings produced in such a manner is improved.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: April 24, 2012
    Assignees: Paul Scherrer Institut, Siemens Aktiengesellschaft
    Inventors: Christian David, Tilman Donath, Eckhard Hempel, Martin Hoheisel, Barbara Matthis, Franz Pfeiffer, Stefan Popescu
  • Publication number: 20120014511
    Abstract: A method is described for producing a grating, in particular an absorption grating, having a grating constant of less than 100 ?m, by using a solution of superparamagnetic colloidal nanocrystal clusters (CNCs), a solvent liquid and a photocurable resin, with the following steps:—alignment of the CNCs in the solution by an external magnetic field,—exposure of the solution, so that the resin is cured and grating structures of an intended grating constant are formed, and—removal of the magnetic field.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 19, 2012
    Inventor: Martin Hoheisel
  • Patent number: 8009796
    Abstract: An x-ray CT system that generates tomographic phase contrast or dark field exposures, has at least one grating interferometer with three grating structures arranged in series in the radiation direction, with a modular design of the second and third grating structures. The distance between the first grating structure of the x-ray source and the second grating structure (fashioned as a phase grating) of the respective grating/detector modules is adapted, depending on the fan angle, corresponding to a period of the grating structure of the x-ray source projected onto the grating detector module at a respective fan angle (?i).
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 30, 2011
    Assignees: Siemens Aktiengesellschaft, Paul Scherrer Institut
    Inventors: Stefan Popescu, Christian David, Tilman Donath, Eckhard Hempel, Martin Hoheisel, Franz Pfeiffer
  • Patent number: 8002718
    Abstract: In a shockwave system with a shockwave source for treatment of a patient with shockwaves, a control and evaluation unit for evaluating an input signal supplied directly thereto that is correlated with a blood pressure value of the patient determined during the treatment, and controls the shockwave source dependent on the input signal.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 23, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gerhard Buchholtz, Jens Fehre, Bernd Granz, Martin Hoheisel, Werner Kruft, Markus Lanski, Matthias Mahler, Christian Meinert, Thomas Mertelmeier, Ralf Nanke, Manfred Rattner
  • Patent number: 7983381
    Abstract: An x-ray CT system for x-ray phase contrast and/or x-ray dark field imaging has a grating interferometer that has a first grating structure that has a number of band-shaped x-ray emission maxima and minima arranged in parallel, the maxima and minima exhibiting a first grating period, a second band-shaped grating structure that produces, as a phase grating, a partial phase offset of x-ray radiation passing therethrough and that exhibits a second grating period, a third band-shaped grating structure with a third grating period with which relative phase shifts of adjacent x-rays and/or their scatter components are detected, and a device for value-based determination of the phase between adjacent x-rays and/or for value-based determination of the spatial intensity curve per detector element perpendicular to the bands of the grating structures. The third grating structure has a grating period that is larger by a factor of 2 to 5 than the grating period of the first grating structure.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: July 19, 2011
    Assignees: Siemens Aktiengesellschaft, Paul Scherrer Institut
    Inventors: Christian David, Tilman Donath, Eckhard Hempel, Martin Hoheisel, Franz Pfeiffer, Stefan Popescu
  • Patent number: 7940889
    Abstract: In a method and apparatus to generate a mammographic image, the apparatus has a radiation source, a digital radiation detector, and support plate and a compression plate between which the breast is compressed during image acquisition. A first image data set depicting the breast is acquired, with a first degree of compression of the breast. A second degree of compression of the breast is set and a second image data set depicting the breast is acquired. The first and second image data sets are linked for the generation of the diagnostic image.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: May 10, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Patent number: 7860288
    Abstract: A sequence of groups of projection images shows an object under examination comprising a vascular system and its environment. A computer determines a 2-dimensional evaluation image having a plurality of pixels based on combination images determined from the projection images of a group. The combination images have a plurality of pixels with pixel values. The sequence of the combination images shows the time characteristic of the distribution of a contrast medium in the object. The pixels of the evaluation image correspond to those of the projection images. The computer assigns each pixel, at least in a part area of the evaluation image, a type that is characteristic of whether the respective pixel corresponds to a vessel of the vascular system, a perfusion area or a background. It performs the assignment of the type on the basis of the time characteristic of the pixel values of the combination images.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: December 28, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Philipp Bernhardt, Estelle Camus, Martin Hoheisel, Thomas Redel
  • Patent number: 7817777
    Abstract: In a focus detector arrangement and method for an x-ray apparatus for generating projection or tomographic phase-contrast images of an examination subject, a beam of coherent x-rays is generated by an anode that has areas of different radiation emission characteristics arranged in bands thereon, that proceed parallel to grid lines of a phase grid that is used to generate the phase-contrast images.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: October 19, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Baumann, Christian David, Martin Engelhardt, Jörg Freudenberger, Eckhard Hempel, Martin Hoheisel, Thomas Mertelmeier, Franz Pfeiffer, Stefan Popescu, Manfred Schuster
  • Publication number: 20100246769
    Abstract: In a method for the production of x-ray-optical gratings composed of a first material forming of periodically arranged grating webs and grating openings, a second material is applied by electroplating to fill the grid openings. The electroplating is continued until a cohesive layer of the second material with uniform height is created over the grating webs with this layer having a large absorption coefficient, the absorption properties of the grating structure of the grating are homogenized, so an improvement of the measurement signals that are generated with this grating is improved. Moreover, the mechanical stability of gratings produced in such a manner is improved.
    Type: Application
    Filed: September 25, 2009
    Publication date: September 30, 2010
    Inventors: Christian David, Tilman Donath, Eckhard Hempel, Martin Hoheisel, Barbara Matthis, Franz Pfeiffer, Stefan Popescu
  • Patent number: 7787596
    Abstract: An x-ray absorption grid produced by a lithography method for use in a phase-contrast CT system has at least two individual grids arranged atop one another in the radiation direction. Each individual grid has a grid area with a grid structure including grid webs and grid gaps in alternation. Each individual grid has a region outside of the grid area (outer region). The outer region of the at least two individual grids has toothed structures corresponding to one another at least two points. The toothed structures are generated as well in the production of the grid structure. The toothed structures have a position that is defined relative to the grid structure, such that a defined alignment of the individual grids occurs given a combination of the individual grids by engagement of the toothed structures of individual grids lying atop one another.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 31, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Eckhard Hempel, Martin Hoheisel, Stefan Popescu
  • Publication number: 20100177864
    Abstract: An arrangement and a method are disclosed for projective and/or tomographic phase-contrast imaging using X-ray radiation. In at least one embodiment, one or more phase grids is/are arranged in the beam path such that during a rotation of the at least one X-ray source, the examination object is scanned with different spatial orientations of the grid lines relative to the examination object such that the complete refraction angle, and hence the complete phase shift gradient, can be determined for each X-ray beam from the two scans with differently oriented phase grids in order to be able to show the phase shift of an examination object in terms of projections or in a tomographic image.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 15, 2010
    Inventors: Tilman Donath, Martin Hoheisel, Christian David, Eckhard Hempel, Franz Pfeiffer, Stefan Popescu
  • Publication number: 20100091936
    Abstract: An x-ray CT system for x-ray phase contrast and/or x-ray dark field imaging has a grating interferometer that has a first grating structure that has a number of band-shaped x-ray emission maxima and minima arranged in parallel, the maxima and minima exhibiting a first grating period, a second band-shaped grating structure that produces, as a phase grating, a partial phase offset of x-ray radiation passing therethrough and that exhibits a second grating period, a third band-shaped grating structure with a third grating period with which relative phase shifts of adjacent x-rays and/or their scatter components are detected, and a device for value-based determination of the phase between adjacent x-rays and/or for value-based determination of the spatial intensity curve per detector element perpendicular to the bands of the grating structures. The third grating structure has a grating period that is larger by a factor of 2 to 5 than the grating period of the first grating structure.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 15, 2010
    Inventors: Christian David, Tilman Donath, Eckhard Hempel, Martin Hoheisel, Franz Pfeiffer, Stefan Popescu