Patents Examined by Thomas R Artman
  • Patent number: 10541061
    Abstract: The invention relates to a system (100) for generating and collimating an X-ray beam (104), comprising an X-ray tube insert for generating the X-ray beam, the X-ray tube inert being a vacuum tube; a tube housing (102) for containing the X-ray tube insert (101), the tube housing being made of X-ray absorbing material; a collimator (103) for collimating the X-ray beam (104); wherein the collimator (103) is arranged in between the X-ray tube insert (101) and the tube housing (102). The invention also relates to a corresponding apparatus for scanning an object of interest with an X-ray beam (104) comprising the system.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 21, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Chin Wang
  • Patent number: 10532224
    Abstract: A processing device determines a plurality of angles from which tracking images can be generated by an imaging device. The processing device generates a plurality of projections of a treatment planning image of a patient, the treatment planning image comprising a delineated target, wherein each projection of the plurality of projections has an angle that corresponds to one of the plurality of angles from which the tracking images can be taken. The processing device determines, for each angle of the plurality of angles, a value of a tracking quality metric for tracking the target based on an analysis of a projection generated at that angle. The processing device selects a subset of the plurality of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: January 14, 2020
    Assignee: ACCURAY INCORPORATED
    Inventors: Petr Jordan, Andriy Myronenko, Calvin Maurer, Eric Schnarr, Rob O'Connell
  • Patent number: 10531854
    Abstract: An X-ray CT apparatus includes processing circuitry. The circuitry controls a voltage generator during non-helical scan to switch tube voltage, thereby causing an imaging to be performed separately with X-rays of a first energy and X-rays of a second energy. The circuitry generates first and second projection data sets, respectively. The circuitry performs image reconstruction based on the first and second projection data sets respectively, thereby generating first and second images respectively. The circuitry performs alignment processing to align the second image with the first image. The circuitry generates a third projection data set based on a processing result of the alignment processing. The circuitry performs transformation processing to transform the second and third projection data sets into projection data sets corresponding to reference materials.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 14, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Takahiro Yoda
  • Patent number: 10524740
    Abstract: New and improved CT imaging systems are presented which are low cost, fully self-contained and easily installed/used. Example improvements include implementation of an integrated and self-contained drive system for moving a scanner component relative to a fixed or static platform/base which also acts as an imaging table. The CT imaging system is also greatly simplified to improve ease of use and to reduce cost.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: January 7, 2020
    Assignee: Dedicated2Imaging, LLC.
    Inventors: Eric M. Bailey, Andrew Tybinkowski
  • Patent number: 10518110
    Abstract: Systems and methods for calibrating and controlling leaves of a multi-leaf collimator are disclosed. According to an exemplary method, a controller may receive images of collimator leaves and may determine a minor offset between an imaging marker and the tip of the respective leaf. In addition, the controller may quantify a barrel distortion effect associated with a leaf-imaging camera. The controller may correct leaf position data using the minor offsets and barrel distortion quantification, and may use the corrected leaf positions to accurately place the leaves during radiotherapy. Advantageously, a desired beam shaping window may be formed with the leaves, ensuring that healthy tissue is minimally irradiated while also ensuring that the target tissue receives the correct radiation dose. Embodiments of the present disclosure provide collimator calibration techniques which may be faster than prior calibration techniques, allowing shortened calibration times and faster radiotherapy sessions.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: December 31, 2019
    Assignee: Elekta Limited
    Inventors: Miguel Jimenez-Carvajal, Ralf Spriestersbach
  • Patent number: 10517547
    Abstract: A diaphragm apparatus for the collimation of an X-ray bundle of an X-ray device is provided for scanning an examination object. An X-ray device including the diaphragm apparatus is also provided. In an embodiment, the diaphragm apparatus includes two diaphragms in the form of slotted diaphragms arranged in series in the direction of the X-rays and mounted to be positionable with respect to one another. Each of the diaphragms includes a fixed diaphragm aperture corresponding to maximum collimation of the X-ray bundle and a region that is impermeable to X-rays, which in each case includes an extension corresponding to the diaphragm aperture corresponding to the maximum collimation.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 31, 2019
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Rainer Raupach, Michael Grasruck, Nicole Haag
  • Patent number: 10500415
    Abstract: A radiation treatment apparatus, comprising a gantry structure comprising a beam member extending between first and second ends of the gantry structure. The radiation treatment apparatus also includes a radiation treatment head movably mounted to the beam member in a manner that allows (i) translation of the radiation treatment head along the beam member between the first and second ends, and (ii) gimballing of the radiation treatment head relative to the beam member, the gimballing comprising pivotable movement in at least one independent pivot direction defined with respect to the beam member. The radiation treatment apparatus also includes a patient couch operative coupled with the radiation treatment head in manner to provide movement of the patient couch relative to the radiation treatment head.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: December 10, 2019
    Assignee: ACCURAY INCORPORATED
    Inventors: Calvin R. Maurer, Jr., Euan S. Thomson
  • Patent number: 10500420
    Abstract: A radiotherapy system comprising an X-ray tube operating at 100 to 800 kVp for providing X-ray beams of 50 mm diameter or less (and preferably approximately 30 mm or less) and configured to move the entrance beam footprint on the body during irradiation to any arbitrary sequential position set that has been predetermined to limit the intervening tissue dose rate at any one location to a safe level, such that the sum of the skin area traversed during treatment is 20 to 100 times the beam area.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 10, 2019
    Inventors: John K. Grady, Lim Cheung
  • Patent number: 10468223
    Abstract: An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: November 5, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John James McCabe, Michael Scott Hebert, Ian Strider Hunt, Andrew Thomas Triscari, Kevin Shane Kruse, Alxander Thomas Ryan, Adolfo Delgado Marquez
  • Patent number: 10458933
    Abstract: The present invention is a method to quantify biomarkers. The method uses an X-ray fluorescence spectrometer to perform an X-ray fluorescence analysis on the sample to obtain spectral features derived from the biomarker; and quantifying the X-ray fluorescence signal of the biomarker.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 29, 2019
    Assignee: Icagen, Inc.
    Inventors: Lori J. Peterson, Cameron A. Mortillaro, Benjamin P. Warner, Nathan H. Zahler, Pratima Bharti, Chang-Tai Hsieh, Emilia A. Solomon
  • Patent number: 10456599
    Abstract: A radiation therapy apparatus determines a set of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion. During an alignment phase or a treatment phase for a treatment stage of a target by the radiation therapy apparatus, the radiation therapy apparatus performs selects at least a first angle and a second angle from the set of angles for a first rotation of the gantry. The radiation therapy apparatus generates, using an imaging device mounted to the gantry, a first tracking image of the target from the first angle during the first rotation of the gantry. The radiation therapy apparatus generates, using the imaging device, a second tracking image of the target from the second angle during the first rotation of the gantry. The radiation therapy apparatus performs the target tracking based on the first tracking image and the second tracking image.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 29, 2019
    Assignee: ACCURAY INCORPORATED
    Inventors: Petr Jordan, Andriy Myronenko, Calvin Maurer, Eric Schnarr, Rob O'Connell
  • Patent number: 10449385
    Abstract: An embodiment of the present invention provides a radiation therapy device including: a main body; a gantry coupled to a side of the main part and rotatable relative to the main part in at least one direction; a radiation head provided on a side of the gantry to emit radiation; an image acquisition unit facing the radiation head to detect radiation emitted from the radiation head and obtain images by converting the detected radiation into electric signals; and a reference image acquisition frame provided on a side of the radiation head and including a plurality of markers formed thereon.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: October 22, 2019
    Assignee: Samsung Life Public Welfare Foundation
    Inventors: Sang Gyu Ju, Chae Seon Hong, Doo Ho Chol
  • Patent number: 10441811
    Abstract: The present invention relates to a radiotherapy planning system (100) for determining a solution (101) corresponding to a fluence profile. The invention proposes to use a Pareto frontier navigator (140) to select the best plan from a set of various auto-planned solutions. An interactive graphical user interface (400) is provided to the planner to navigate among convex combinations of auto-planned solutions. This proposed Pareto plan navigation can be considered as a further optional refinement process, which can be applied to find the best plan in those cases where auto-generated solutions are not fully satisfying the planner's requirements. The navigation tool (400) moves locally through a set of auto-generated plans and can potentially simplify the planner's decision making process and reduce the whole planning time on complex clinical cases from several hours to minutes.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 15, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Alfonso Agatino Isola, Christoph Neukirchen
  • Patent number: 10441812
    Abstract: An output radiation treatment plan for at least one target in a treatment volume is determined. Each target is associated with a prescribed radiation dose. An updated treatment plan causes the prescribed radiation dose to be delivered to the target when implemented by a radiation therapy machine. The updated treatment plan requires an updated delivery time to complete and is calculated by: [i] receiving a numerical value designating an upper bound on modulation efficiency of the updated treatment plan, [ii] receiving a current treatment plan, [iii] calculating a current delivery time for the current treatment plan, [iv] calculating an un-modulated delivery time for the current treatment plan, and [v] calculating the updated treatment plan by executing an optimization process while satisfying the upper bound on the modulation efficiency. Steps [ii] to [v] are traversed a predetermined number of times. Thereafter, the output radiation treatment plan is generated.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: October 15, 2019
    Assignee: RaySearch Laboratories AB
    Inventors: Rasmus Bokrantz, Björn Hårdemark
  • Patent number: 10424457
    Abstract: Emitter (3) and target (7) are arranged so as to face each other in vacuum chamber (1), and guard electrode (5) is provided at outer circumferential side of electron generating portion (31) of emitter (3). Emitter (3) is supported movably in both end directions of vacuum chamber (1) by emitter supporting unit (4) having movable body (40). To perform regeneration process of guard electrode (5), emitter is moved to no-discharge position by operating emitter supporting unit, and state in which field emission of electron generating portion (31) is suppressed is set, then by applying voltage across guard electrode (5), discharge is repeated. After regeneration process, by operating emitter supporting unit again, emitter is moved to discharge position, and state in which field emission of electron generating portion (31) is possible is set with movement of movable body (40) toward the other and side being restrained by movement restraining unit (6).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: September 24, 2019
    Assignee: MEIDENSHA CORPORATION
    Inventors: Daizo Takahashi, Michihiro Hatanaka
  • Patent number: 10398405
    Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: September 3, 2019
    Assignee: Analogic Corporation
    Inventors: David Rozas, Aleksander Roshi, Charles H. Shaughnessy
  • Patent number: 10398404
    Abstract: In order to provide a data processing device and the like, capable of performing highly accurate reference correction even in a case where an object protrudes in reference channels in most of the measurement views, an image processing device (data processing device) of an X-ray CT apparatus calculates a unit air calibration reference value which is a value per unit tube current of an air calibration reference value which is reference data measured during air calibration, calculates a reference value (estimated reference value) corresponding to an X-ray condition in the main scanning on the basis of an output tube current value in the main scanning and a unit air calibration reference value, and corrects normalized reference data obtained by normalizing a measured reference value in the main scanning with the estimated reference value, to be included in an allowable error range, so as to remove the influence of protrusion.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 3, 2019
    Assignee: HITACHI, LTD.
    Inventors: Taiga Goto, Hisashi Takahashi, Koichi Hirokawa
  • Patent number: 10398911
    Abstract: A multi-layer multi-leaf collimation system includes at least a first layer of collimation leaves that are vertically offset with respect to a second layer of collimation leaves. A control circuit generates a preliminary radiation treatment plan using a model of a radiation therapy treatment platform using a single-layer multi-leaf collimation system following which the control circuit generates a final radiation treatment plan that takes into account at least a second layer of collimation leaves. The resultant final radiation treatment plan can then be used to administer radiation to a patient using the aforementioned multi-layer multi-leaf collimation system.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: September 3, 2019
    Assignee: Varian Medical Systems Internationl AG
    Inventors: Janne I. Nord, Jarkko Y. Peltola, Esa Kuusela
  • Patent number: 10398013
    Abstract: A high energy radiation device may include a band and/or contact rod with surface properties to enhance field emissions or otherwise assist in control of x-ray generation.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 27, 2019
    Assignee: Tribo Labs
    Inventor: Carlos Camara
  • Patent number: 10393683
    Abstract: X ray apparatus includes a sample stage (4) for supporting a sample (6), an X-ray source (2) and an energy dispersive X-ray detector (8). A conical X-ray collimator (10) is provided either between the sample and the X-ray source or between the sample and the energy-dispersive X-ray detector, the conical X-ray collimator including a plurality of truncated cones arranged concentrically around a central axis, the truncated cones having a common apex defining a central measurement spot on the sample.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: August 27, 2019
    Assignee: MALVERN PANALYTICAL B.V.
    Inventors: Petronella Emerentiana Hegeman, Gustaaf Christian Brons