Patents Assigned to Accuray Incorporated
  • Patent number: 10173078
    Abstract: Methods of two-dimensional x-ray imaging of a target volume and tracking a target structure contained within a target volume are described.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: January 8, 2019
    Assignee: ACCURAY INCORPORATED
    Inventors: Calvin R. Maurer, Jr., Mu Young Lee, Gopinath Kuduvalli, Petr Jordan, Prashant Chopra
  • Patent number: 10065049
    Abstract: Images that are associated with an identification of a tracking target of a patient to receive radiation treatment may be received. The images may be sorted into a sequence based on a motion of the patient. The sorted images may be provided via a graphical user interface. The sequence of the sorted images that are based on the motion of the patient may be provided.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: September 4, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Kolos Lugosi, Kyle Nethery-Pavelchak, Matthew Core, Calvin Maurer, Petr Jordan
  • Patent number: 10046178
    Abstract: A method and apparatus to automatically control the timing of an image acquisition by an imaging system in developing a correlation model of movement of a target within a patient.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 14, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Shutian Li, Ye Sheng, Sohail Sayed
  • Patent number: 9993662
    Abstract: A method and apparatus for treatment planning are described.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: June 12, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Hongwu Wang, John R. Dooley, Bai Wang, Jay B. West, I-Ning Chang, Neda Sayan
  • Patent number: 9990711
    Abstract: Imaging data including images associated with a patient may be received. A subset of the images that are used with a model that is associated with the position and motion of a targeted region of the patient to receive radiation treatment may be identified. The subset of images may be sorted. A graphical user interface (GUI) that identifies two or more of the images of the sorted subset may be provided. A selection associated with one of the images of the sorted subset may be received by the GUI. Furthermore, a new model to identify the targeted region based on the selection that is associated with one of the two or more images may be generated.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: June 5, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Kolos Lugosi, Matthew Core, Robert Kahn
  • Patent number: 9950193
    Abstract: A radiation delivery system includes a multi-leaf collimator (MLC) that includes a housing, a plurality of leaves disposed within the housing, and an image sensor disposed within the housing at a position that is offset from a beam axis. The plurality of leaves are movable to define an aperture for the MLC, and the image sensor is directed toward the plurality of leaves. The image sensor is to generate an oblique-view image of the aperture. The radiation delivery system additionally includes a processing device to receive the oblique-view image, transform the oblique-view image into a top-view image having a reference coordinate space, and determine whether the aperture for the MLC corresponds to a specified aperture based on the top-view image.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 24, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Jonathan Cecil Chappelow, Petr Jordan, Calvin Maurer, Sarbjit Singh, Andrew W. Fitting, Andriy Myronenko, Jian Gao
  • Patent number: 9943707
    Abstract: Tracking a target structure contained within a target volume using an x-ray tomosynthesis imaging detector is described.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 17, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Calvin R. Maurer, Jr., Mu Young Lee, Gopinath Kuduvalli, Petr Jordan, Prashant Chopra
  • Patent number: 9943705
    Abstract: A method includes determining a first estimate of leaf positions for a plurality of leaves of a multi-leaf collimator (MLC) in a reference coordinate space based on an image generated by an image-based aperture verification system, wherein the leaf positions for the plurality of leaves define an aperture for the MLC. The method further includes determining a second estimate of the leaf positions for the plurality of leaves in the reference coordinate space based on data from an additional source. The method further includes verifying the leaf positions for the plurality of leaves based on comparing the first estimate to the second estimate, wherein the leaf positions are verified if the first estimate deviates from the second estimate by less than a threshold value.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 17, 2018
    Assignee: ACCURAY INCORPORATED
    Inventors: Jonathan Cecil Chappelow, Petr Jordan, Calvin Maurer, Sarbjit Singh, Andrew W. Fitting, Andriy Myronenko, Jian Gao
  • Patent number: 9895555
    Abstract: An IGRT system and methods are described embodiments of which perform selectively integration of x-ray source arrays, dual-energy imaging, stereoscopic imaging, static and source collimation, or inverse geometry tomosynthesis imaging to acquire or track a target during radiation treatment.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 20, 2018
    Assignee: Accuray Incorporated
    Inventors: Calvin R. Maurer, Jr., Mu Young Lee, Gopinath Kuduvalli, Petr Jordan, Prashant Chopra
  • Patent number: 9883818
    Abstract: Fiducial localization methods and apparatus are described.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: February 6, 2018
    Assignee: Accuray Incorporated
    Inventors: Adam Jerome Weber, Eric Earnst, Calvin R. Maurer, Jr., Gopinath Kuduvalli, Christopher A. Raanes
  • Patent number: 9774838
    Abstract: A method of ambient light suppression in an imaging system, including illuminating leaves of a multi-leaf collimator (MLC) with a first light of a lighting system inside a housing of the MCL, receiving ambient light inside the housing of the MLC through an aperture of the MLC, and capturing, using an imaging system having optics situated inside the housing of the MLC, an image of the leaves of the MLC illuminated with the first light and the ambient light. The method may further include, suppressing the ambient light in the first image to generate a second image of the leaves of the MLC and detecting a feature of the leaves of the MLC in the second image.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 26, 2017
    Assignee: ACCURAY INCORPORATED
    Inventors: Jonathan Chappelow, Petr Jordan, Jian Gao, Sarbjit Singh, Trevor Laing, Calvin Maurer
  • Patent number: 9700740
    Abstract: A radiation treatment apparatus is described. The radiation treatment apparatus may include a gantry frame and a rotatable gantry structure rotatably coupled to the gantry frame, the rotatable gantry structure being rotatable around a rotation axis passing through an isocenter, with the rotatable gantry structure including a first beam member extending between first and second ends of the rotatable gantry structure. The radiation treatment apparatus may also include a radiation treatment head movably mounted to the first beam member in a manner that allows (i) translation of the radiation treatment head along the first beam member between the first and second ends, and (ii) gimballing of the radiation treatment head relative to the first beam member, the gimballing being characterized by pivotable movement in at least two independent pivot directions defined with respect to the first beam member.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 11, 2017
    Assignee: Accuray Incorporated
    Inventor: Calvin R. Maurer, Jr.
  • Patent number: 9687200
    Abstract: Systems, methods, and related computer program products for image-guided radiation treatment (IGRT) are described. For one preferred embodiment, an IGRT apparatus is provided comprising a ring gantry having a central opening and a radiation treatment head coupled to the ring gantry that is rotatable around the central opening in at least a 180 degree arc. For one preferred embodiment, the apparatus further comprises a gantry translation mechanism configured to translate the ring gantry in a direction of a longitudinal axis extending through the central opening. Noncoplanar radiation treatment delivery can thereby be achieved without requiring movement of the patient. For another preferred embodiment, an independently translatable 3D imaging device distinct from the ring gantry is provided for further achieving at least one of pre-treatment imaging and setup imaging of the target tissue volume without requiring movement of the patient.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: June 27, 2017
    Assignee: Accuray Incorporated
    Inventor: Calvin R. Maurer, Jr.
  • Patent number: 9572997
    Abstract: A method of compensating for breathing and other motions of a patient during treatment includes periodically generating internal positional data about an internal target region. The method further includes generating external positional data about external motion of the patient's body using an external sensor and generating a correlation between one or more positions of the internal target region and one or more positions of an external region using the external positional data of the external sensor and the internal positional data of the internal target region. The method further includes predicting the position of the internal target region at some later time based on the correlation model.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 21, 2017
    Assignee: Accuray Incorporated
    Inventors: John R. Adler, Achim Schweikard
  • Patent number: 9474914
    Abstract: Treatment targets such as tumors or lesions, located within an anatomical region that undergoes motion (which may be periodic with cycle P) are tracked. A 4D mathematical model may be established for the non-rigid motion and deformation of the anatomical region, from a set of CT or other 3D images. The 4D mathematical model relates the 3D locations of part(s) of the anatomical region with the targets being tracked, as a function of the position in time within P. Using non-rigid image registration between pre-operative and intra-operative images, the position of the target and/or other part(s) of the anatomical region may be determined.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: October 25, 2016
    Assignee: Accuray Incorporated
    Inventors: Euan S. Thomson, John Dooley, Gopinath Kuduvalli, James Wang, Eric Earnst, Chris Raanes
  • Patent number: 9443633
    Abstract: A multi-leaf collimator with electromagnetically actuated leaves. The multi-leaf collimator includes a plurality of leaves, a leaf guide configured to support the plurality of leaves, and a plurality of magnets. Each leaf includes a blocking portion that is radio opaque, a drive portion connected to the blocking portion, and a coil embedded in the drive portion. The coil is operatively connected to an electrical current source to generate a first magnetic field. The first magnetic field interacts with the magnetic field generated by the magnet to thereby move the leave to a desired state. The leaves have the capability of moving at speeds of 50 cm/s up to and higher than 1 m/s.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 13, 2016
    Assignee: ACCURAY INCORPORATED
    Inventors: Matthew J. Orton, Robert Mastromattei, Robert O'Connell, Richard C. Schmidt, Graham Reitz
  • Patent number: 9427201
    Abstract: A non-invasive method and system for using 2D angiographic images for radiosurgical target definition uses non-invasive calibration devices and methods to calibrate an angiographic imaging system and a six-parameter registration algorithm to register angiographic images with 3D scan data for radiation treatment planning.
    Type: Grant
    Filed: June 30, 2007
    Date of Patent: August 30, 2016
    Assignee: Accuray Incorporated
    Inventors: Jay B. West, Calvin R. Maurer, Jr., Dongshan Fu, John R. Dooley
  • Patent number: 9426876
    Abstract: The disclosure relates to systems and methods for interleaving operation of a linear accelerator that use a magnetron as the source of electromagnetic waves for use in accelerating electrons to at least two different ranges of energies. The accelerated electrons can be used to generate x-rays of at least two different energy ranges. In certain embodiments, the accelerated electrons can be used to generate x-rays of at least two different energy ranges. The systems and methods are applicable to traveling wave linear accelerators.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: August 23, 2016
    Assignee: Accuray Incorporated
    Inventors: Paul Dennis Treas, Roger Heering Miller
  • Patent number: 9415240
    Abstract: Apparatus for generating multi-energy x-ray images and systems and methods for processing and using multi-energy x-ray images are provided for treating a target, e.g., a tumor, for image-guided radiation therapy. An image-guided radiation therapy system is provided including a treatment delivery system, a multi-energy imaging system, and a system processor. The treatment delivery system includes a radiation source configured to generate treatment radiation beams. The multi-energy imaging system is configured to generate a first set of image data of the patient using imaging radiation at a first energy level and a second set of image data of the patient using imaging radiation at a second energy level. The system processor is configured to process the first and second sets of image data to generate an enhanced image of the patient and to direct the treatment delivery system based on information obtained from the enhanced image.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 16, 2016
    Assignee: Accuray Incorporated
    Inventors: Petr Jordan, Andriy Myronenko, Jay B. West, Calvin R. Maurer, Jr., Prashant Chopra, Anuj K. Purwar, Christopher A. Janko
  • Patent number: 9406411
    Abstract: An apparatus includes a portion that moves along a guided path and a displacement gauge that outputs readings based on the portion's position on the guided path. The apparatus additionally includes an intermediate limit switch that is activated in response to the portion being moved to an intermediate position on the guided path. The apparatus also includes a processing device configured to calibrate the apparatus based on a first reading corresponding to a first position on the guided path and a second reading corresponding to a second position on the guided path. The processing device verifies the calibration based on a third reading corresponding to the intermediate position.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 2, 2016
    Assignee: Accuray Incorporated
    Inventors: Sohail Sayeh, George Asmerom, Sankaralingam Ramraj, Jian Gao, Gopinath Kuduvalli