Patents Examined by Glen Kao
  • Patent number: 9936927
    Abstract: A control apparatus for an X-ray imaging system obtains examination information including a plurality of imaging techniques and a plurality of imaging conditions corresponding to the plurality of imaging techniques. When the content of a condition item of the imaging condition selected from the plurality of imaging conditions is changed in accordance with an operation input from the operator, the control apparatus applies the change to an imaging condition other than the selected imaging condition of the plurality of imaging conditions.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: April 10, 2018
    Inventor: Manami Hikosaka
  • Patent number: 9936934
    Abstract: An apparatus, method, and computer program product for calibrating a CT scan without the use of an external calibration phantom, to enable quantitative assessment of internal body tissues and organs and additionally for any application that would benefit from a calibration of the scan attenuation data, such as viewing CT images in a consistent fashion. Embodiments are described with applications to quantitative assessment of bone density in the spine and hip, mineral content in blood vessels, hepatic-fat content in the liver, and gray-to-white matter ratio in the brain. The primary advantages of the method are that it does not require the use of an external calibration phantom, it is robust across different CT machines and scanner settings, and it is also highly precise, lending itself to a high degree of automation.
    Type: Grant
    Filed: June 21, 2014
    Date of Patent: April 10, 2018
    Assignee: O.N.Diagnostics, LLC
    Inventors: David L. Kopperdahl, David Choen Lee, Tony M. Keaveny
  • Patent number: 9931096
    Abstract: It is possible to reliably avoid a problem that radiation irradiation does not stop even when an accumulated radiation dose reaches a target radiation dose. An AEC unit starts monitoring an integrated value of a radiation dose detection signal from a detection pixel and an output of an irradiation continuation signal at the same time, and continuously transmits the irradiation continuation signal in a predetermined period while the integrated value does not reach a threshold value. When the integrated value reaches the threshold value, the output of the irradiation continuation signal is stopped. The irradiation continuation signal is transmitted to an irradiation signal I/F of a radiation source control device through an irradiation signal I/F by wireless. The radiation source control device stops X-ray irradiation by an X-ray source when the irradiation signal I/F does not receive the irradiation continuation signal.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: April 3, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Masaru Sato
  • Patent number: 9924914
    Abstract: An x-ray recording system contains an x-ray emitter for generating a beam used for imaging, an imaging x-ray detector with a two-dimensional or three-dimensional recording geometry for determining the attenuation of the rays of the beam, a patient bearing and/or positioning device for a patient in a recording region of the x-ray recording system between the x-ray emitter and the x-ray detector. A time of flight (TOF) camera is arranged for establishing the contour of the patient and a computer with a memory and software stored therein is present, which computer unit is embodied, during operation, to generate a three-dimensional wire model of the patient with joint locations arranged therein from the contour of the patient recorded by the TOF camera and to simulate and display at least one anatomical structure scaled to the wire model.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: March 27, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventor: Guido Heinrich Dirkes
  • Patent number: 9916961
    Abstract: An X-ray tube comprising: a cathode including an emitter; an anode; a first magnetic quadrupole formed on a first yoke and having a magnetic quadrupole gradient for focusing an electron beam in a first direction and defocusing the beam in a second direction; a second magnetic quadrupole formed on a second yoke and having a magnetic quadrupole gradient for focusing the electron beam in the second direction and defocusing the electron beam in the first direction; wherein a combination of the first and second magnetic quadrupoles provides a net focusing effect in both first and second directions of a focal spot of the electron beam; and a pair of opposing quadrupole electromagnetic coils having alternating current offset being configured to deflect the electron beam in order to shift the focal spot of the electron beam on a target.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: March 13, 2018
    Inventor: Bradley D. Canfield
  • Patent number: 9907519
    Abstract: A radiation protection device attaches to the C-arm of a fluoroscope and shields and collimates the X-ray beam between the X-ray source and the patient and between the patient and the image intensifier. One embodiment has a radiation shield of X-ray opaque material that surrounds the C-arm of the fluoroscopy system, the X-ray source and the image intensifier. A padded slot fits around the patient's body. Another embodiment has conical or cylindrical radiation shields that extend between the X-ray source and the patient and between the patient and the image intensifier. The radiation shields have length adjustments and padded ends to fit the device to the patient. The radiation protection device may be motorized to advance and withdraw the radiation shields. A blanket-like radiation shield covers the patient in the area surrounding where the X-ray beam enters the body.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: March 6, 2018
    Assignee: Radiaction Ltd.
    Inventors: Amir Belson, James J. Leary
  • Patent number: 9907518
    Abstract: An X-ray imaging guiding system for positioning a region of interest of a patient for X-ray image acquisition includes an X-ray detector arrangement, and graphical positioning information. The graphical positioning information includes a graphical target anatomy representation. The graphical target positioning information is provided in spatial relation with the X-ray detector arrangement. The graphical target anatomy representation indicates a target position of a respective anatomy of the patient for a determined X-ray image acquisition. Further, the graphical positioning information is adaptable in accordance with the determined X-ray image acquisition.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: March 6, 2018
    Inventors: André Gooβen, Claire Levrier, Gereon Vogtmeier, Raoul Florent, Liesbet Hilde Hadewijch Roose, Jens Von Berg
  • Patent number: 9901313
    Abstract: A sensor holder for retaining a dental radiation sensing device includes an elongated support member, at least one pair of retention guides attached to the support member, and at least one bite block attached to the support member. The retention guides are capable of holding an associated dental radiation sensing device. The bite block has a leading edge which is first inserted into a mouth of a patient and a trailing edge. The leading edge defining a recess into which structure within the mouth of the patient can seat. At least one of the retention guides may be moveable relative to the other retention guide.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 27, 2018
    Inventors: Harold K. Schmulenson, Thomas J. Gillen
  • Patent number: 9904978
    Abstract: The present invention relates to pairing an anatomy representation with live images. In order to provide an enhanced and more flexible pairing of an anatomy representation with live images, for pairing an anatomy representation with live images, reference projected-anatomy image data of a device in a spatial relation to the anatomy is provided (100), wherein the image data comprises at least a first and second image showing the device from different viewing angles. Further, an anatomy representation with an anatomy frame of reference is provided (200). The anatomy representation is brought (300) into spatial coherence with the at least first and second image of the reference projected anatomy image data. A three-dimensional model of the device within the anatomy frame of reference is computed (400) from the projected anatomy image data. At least one live image is provided (500) containing the device.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: February 27, 2018
    Inventors: Raoul Florent, Olivier Pierre Nempont, Pascal Yves Francois Cathier
  • Patent number: 9895128
    Abstract: In order to provide a technique for reducing system noise from an output signal value (measurement data), an X-ray CT apparatus includes an X-ray generation unit that irradiates X-rays to an object, an X-ray detector that detects the X-rays transmitted through the object, a correction processing unit that corrects an output signal from the X-ray detector, and a reconstruction calculating unit that reconstructs an image on the basis of an output from the correction processing unit, in which the X-ray detector includes arranged detection elements, and in which the correction processing unit maintains an average value of output signal values of a plurality of predetermined detection elements centering on a focused detection element among the detection elements, and also reduces a variance of the output signal values of the plurality of predetermined detection elements centering on the focused detection element.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 20, 2018
    Assignee: HITACHI, LTD.
    Inventors: Hisashi Takahashi, Taiga Goto, Koichi Hirokawa
  • Patent number: 9898840
    Abstract: A method of continuous motion digital tomosynthesis includes exposing an object to a programed intensity x-ray beam as an x-ray source travels a pre-determined path, accumulating a signal charge from the x-ray beam, recording the accumulated signal charge into a digital frame image representing raw baseline data, acquiring information on the source's and the detector's position when the recording occurs, compressing the raw baseline data into compressed views, where each respective compressed view is formed by combining the raw data readouts of the respective compressed view, and reconstructing a volumetric breast image by processing each respective compressed view with a reconstruction process function that incorporates the acquired position information and a spatial sampling corresponding to the compressed views. A system configured to implement the method and a computer-readable medium are also disclosed.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 20, 2018
    Assignee: General Electric Company
    Inventors: Remy Andre Klausz, John Eric Tkaczyk, Henri Souchay, Scott Stephen Zelakiewicz
  • Patent number: 9888898
    Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 13, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Kazuo Imagawa, Takuya Sakaguchi, Ryuji Zaiki
  • Patent number: 9883843
    Abstract: A system including an input sensor, a summer, a controller, and a feedback sensor. The input sensor: detects a first amount of force or torque applied on a component of an x-ray scanner gantry in a direction; and generates a command signal. The command signal indicates the first amount of force or torque. The summer generates an error signal based on the command signal and a feedback signal. The controller controls operation of a motor based on the error signal to: reduce the error signal; provide counterbalancing of the gantry in the direction; and provide a net force or torque on the gantry that is equal to a predetermined value or is within a predetermined range of the predetermined value. The feedback sensor detects a second amount of force or torque applied on the gantry in the direction as a result of the controlled operation and generates the feedback signal.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 6, 2018
    Assignee: Medtronic Navigation, Inc.
    Inventor: David A. Garlow
  • Patent number: 9883841
    Abstract: A mobile X-ray apparatus for medical examination includes an apparatus for producing X-ray images having a digital Radiography detector positioned at a first spatial position, an X-ray tube assembly positionable at a second spatial position relative to the first spatial position, sensor(s) for providing the first spatial position and/or the second spatial position, a control unit for receiving the first and/or the second spatial position(s) from the at least one sensor and for controlling the first or second spatial position for alignment of the X-ray tube assembly with the detector based on the first and second spatial positions, a drive wheel, a base, optionally an elevating column, and a telescopic arm which is rotatable into a direction perpendicular to a driving direction of the base. The apparatus is controllable to drive along a patient table and/or the X-ray tube assembly is height adjustable in front of a wall stand, for alignment.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 6, 2018
    Inventors: Jan Bååt, Mattias Guldstrand, Martin Göran Yngvesson
  • Patent number: 9881710
    Abstract: An achromatic phase-contrast imaging apparatus for examining an object of interest is provided which comprises two different phase gratings which have different pitches. Thus, the imaging apparatus yields phase-contrast information for two different energies. Thus, phase-information over a wider energy band can be used.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: January 30, 2018
    Inventors: Ewald Roessl, Thomas Koehler
  • Patent number: 9878178
    Abstract: In a quality control method and computer for planning radiotherapy of patient, magnetic resonance (MR) image data, acquired from a planning volume of a patient, are provided to a computer and are used in the computer to generate a first electron density map of the planning volume. A second electron density map is generated using the first electron density map, wherein a value of electron density for a bone region in the planning volume is reduced compared to the first electron density map. First and second radiation dose distributions in the planning volume are respectively determined from the radiotherapy plan and the first electron density map, and the radiotherapy plan and the second electron density map. These distributions are compared in order to generate output information.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: January 30, 2018
    Assignee: Siemens Healthcare GmbH
    Inventor: Bernd Schweizer
  • Patent number: 9874531
    Abstract: Periodic spatial patterns of x-ray illumination are used to gather information about periodic objects. The structured illumination may be created using the interaction of a coherent or partially coherent x-ray source with a beam splitting grating to create a Talbot interference pattern with periodic structure. The object having periodic structures to be measured is then placed into the structured illumination, and the ensemble of signals from the multiple illumination spots is analyzed to determine various properties of the object and its structures. Applications to x-ray absorption/transmission, small angle x-ray scattering, x-ray fluorescence, x-ray reflectance, and x-ray diffraction are all possible using the method of the invention.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 23, 2018
    Assignee: Sigray, Inc.
    Inventors: Wenbing Yun, Sylvia Jia Yun Lewis, Janos Kirz
  • Patent number: 9869642
    Abstract: A method for X-raying products of a product stream in which products are conveyed in a conveyance direction before the X-raying in a number n lanes parallel to each other. Several adjacent products transverse to the conveyance direction are transferred as a group together into a radiation-protected X-ray room, and the products are rearranged for an X-ray process in the X-ray room such that the shadowing effects during the X-ray process are reduced.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 16, 2018
    Assignee: Wipotec GmbH
    Inventor: Theo Düppre
  • Patent number: 9869643
    Abstract: Masks that selectively attenuate radiation for inspections of printed circuit boards (PCB) are disclosed. A PCB may be inspected for defects by exposing the PCB with radiation and analyzing the radiation transmitted through the PCB. By employing a radiation mask having first and second segments between the PCB and a radiation source, the radiation may be selectively attenuated to attenuate a first portion of the radiation with a first attenuation level to prevent performance degradation to sensitive semiconductor devices as part of a first sectional area of the PCB, and yet provide substantially non-attenuation or attenuation at a second attenuation level for a second portion of the radiation incident upon a second sectional area of the PCB which is free from sensitive semiconductor devices. In this manner, the selective attenuation enables inspection of the first and second sectional areas of the PCB without damage to the sensitive semiconductor devices.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 16, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: ShiJie Wen, Richard J. Wong
  • Patent number: 9861323
    Abstract: A method for obtaining tomosynthesis images of an object of interest using an imaging system, wherein the imaging system comprises an X-ray source arranged to facing a detector on which the object of interest is positioned. The method comprises acquiring a plurality of projected 2D images of the object of interest in a plurality of orientations identified relative to a perpendicular to the detector, wherein a zero orientation is closest to the perpendicular and applying at least one filter to the acquired projected 2D images to obtain filtered, projection images of the object of interest. The method further comprises determining a reconstruction slice of the object of interest from the backprojection of at least two of the filtered projections, the set of reconstruction slices being the filtered, reconstructed volume of the object of interest, wherein a filter used on the 2D projection images is an adaptive filter.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 9, 2018
    Inventors: Sylvain Bernard, Henri Souchay