Collimator Patents (Class 378/147)
  • Patent number: 11376445
    Abstract: Systems and methods are provided for single isocenter radiotherapy of multiple targets. Conformal arc information may be used in a Conformal Arc Informed Volumetric Modulated Arc Therapy (CAVMAT) method that includes single isocenter radiotherapy of multiple targets where conformal multi-leaf collimator (MLC) trajectories may be used as the starting point for limited inverse optimization. Single isocenter radiotherapy of multiple targets may provide flexibility with less complex MLC trajectories, and fully block between targets with the MLC.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 5, 2022
    Assignee: Duke University
    Inventors: Justus Adamson, William Giles, Obed Laryea, Fang-Fang Yin
  • Patent number: 11350892
    Abstract: Methods and systems are provided for reducing aliasing artifacts in images generated in an imaging system, such as a computed tomography (CT) imaging systems. In one embodiment, a method comprises receiving a filtered signal generated by passing a primary signal through a collimator having a non-rectangular transition profile, the collimator positioned between an object and a detector of an imaging system, and generating an image based on the filtered signal received at the detector, the primary signal including radiation from a source of the imaging system attenuated by the object placed between the source and the detector. In this way, by filtering the signals at the collimator before reaching the detector, aliasing artifacts in the images may be reduced.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 7, 2022
    Assignee: General Electric Company
    Inventors: Adam Budde, Mark Adamak
  • Patent number: 11341629
    Abstract: There are described herein methods and system for generating an inspection image of an object from radiographic imaging. The method comprises obtaining a plurality of digital images of the object positioned between a radiation source and a photon beam detector, the digital images taken at different object-detector distances or source-detector distances to create unique grain diffraction patterns in each one of the digital images, and forming the inspection image from image features common to the digital images at a common scale and removing the unique grain diffraction patterns.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: May 24, 2022
    Inventor: Justin Byers
  • Patent number: 11311264
    Abstract: A computed tomography machine suitable for interventional procedures provides partial scans displaced about the patient away from the physician position to substantially reduce Compton scattering received by the physician. A modeling of patient dose accounting for the presence of shielding, different physician characteristics, patient positions, and probe position may be accomplished to affect a trade-off between these various factors optimized for interventional or similar procedures where a nonpatient must be close to the scanner during operation.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 26, 2022
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Timothy Szczykutowicz, Emily Knott, Fred Lee
  • Patent number: 11259769
    Abstract: The present apparatus, system, and method relate to reliably capturing multiple x-ray images for later combination. An exposure shield blocks a portion of the x-rays emitted from a traditional emitter and collimator. The orientation of exposure shield may then be modified to block a second portion of x-rays while ensuring appropriate overlap of the captured images without intentionally moving the emitter or collimator and without the need for a patient to wear protective garb.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: March 1, 2022
    Assignee: X-Ray Cassette Repair, Inc
    Inventor: Steven A. Gdula
  • Patent number: 11246546
    Abstract: The collimator (3) for a radiological equipment (1) comprises shielding means (6, 7, 9, 10, 11) made of tungsten-based radiation-absorbent plastic material; such means may be proximal radiated field closure elements and/or radiated field propagation elements; such means comprise at least one radiated radiogenic field propagation element (6).
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 15, 2022
    Assignee: GENERAL MEDICAL MERATE S.P.A.
    Inventor: Ivano Rossi
  • Patent number: 11235174
    Abstract: Device including a multileaf collimator, the multileaf collimator including an array of leaves and slits, the array having an alternation of leaves and slits and extending in a longitudinal direction, the longitudinal direction being defined as a direction extending from an entrance plane of the array toward an exit plane of the array, each leaf being located between two slits; the device having a source for emitting an incident electromagnetic beam or a source for emitting an incident beam of subatomic particles, the source being arranged to emit the beam in the direction of the entrance plane of the array, the multileaf collimator being arranged to obtain an arrangement of beams from the incident beam, and the arrangement of beams forms an alternation of high-energy lines and lower-energy lines.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 1, 2022
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS-SUD, UNIVERSITE PARIS DIDEROT
    Inventors: Yolanda Prezado, Morgane Dos Santos, Batiste Janvier
  • Patent number: 11229110
    Abstract: The present application provides a combined machine head and a ray imaging device, wherein the combined machine head comprises: a housing, having an enclosed cavity; a ray tube, arranged in the enclosed cavity; and a pump and a pipe, arranged in the enclosed cavity; wherein the pump is arranged on one side away from an anode of the ray tube, the pipe has a first end connected with an outlet of the pump and a second end extending to be near the anode of the ray tube; or the pump is arranged near the anode of the ray tube, the pipe has a first end connected to an inlet of the pump and a second end extending to one side away from the anode of the ray tube.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 18, 2022
    Assignee: SUZHOU POWERSITE ELECTRONIC CO., LTD.
    Inventors: Weizhong Wang, Jie He, Qiang Huang
  • Patent number: 11221424
    Abstract: The present invention relates to a method for calibrating a collimator of X-rays and an apparatus for X-ray analysis which comprises the collimator and can carry out the method automatically.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: January 11, 2022
    Assignee: IMS GIOTTO S.P.A.
    Inventors: Sara Vecchio, Paolo Vignoli, Valerio Salomoni
  • Patent number: 11213697
    Abstract: An example particle therapy system includes a particle accelerator to output a particle beam having a spot size; a scanning system for the particle accelerator to scan the particle beam in two dimensions across at least part of a treatment area of an irradiation target; and an adaptive aperture between the scanning system and the irradiation target. The adaptive aperture includes structures that are movable relative to the irradiation target to approximate a shape to trim part of the treatment area. The part of the treatment area has a size that is based on an area of the spot size.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: January 4, 2022
    Assignee: Mevion Medical Systems, Inc.
    Inventors: Gerrit Townsend Zwart, Mark R. Jones, Miles S. Wagner, James Cooley, Eros Pedroni, Robert Silva
  • Patent number: 11202361
    Abstract: An X-ray tube device includes a main body that incorporates a bulb, which generates X-rays, a collimator that is provided to protrude from the main body in an irradiation direction of the X-rays in a part of a front surface (first surface), which is a surface of the main body, and has an irradiation window for irradiating the X-rays with an adjusted irradiation range, and connectors that are provided for connecting a guard unit for keeping a distance from a test object, between the front surface (first surface) of the main body and a front surface (second surface), which is a surface of the collimator where the irradiation window is provided.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: December 14, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kenji Nakamura, Ryosuke Ogura, Keiichiro Takahashi
  • Patent number: 11147527
    Abstract: There is provided a method and system for filling micromechanical structures with x-ray absorbing material. The method includes providing a wetting layer for enabling melted x-ray absorbing material to flow over the surface of an overall structure including the micromechanical structures, melting the x-ray absorbing material, and applying gas pressure to press the melted x-ray absorbing material into the micromechanical structures.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 19, 2021
    Assignee: SCINT-X AB
    Inventors: Anna Sahlholm, Olof Svenonius, Daniel Nilsson, David Rihtnesberg
  • Patent number: 11123029
    Abstract: A method is for producing a grid-like beam collimator. In an embodiment, the method includes printing a suspension, including a binder and metal particles, in several stacked layers to build a layer stack with a grid structure including a number of crossing webs, and removing the binder from the layer stack. In an embodiment, the printing includes applying a curable liquid stiffening material at least on a surface of the grid structure, and curing the curable liquid stiffening material after the applying.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 21, 2021
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Andreas Freund, Harald Geyer, Stefan Wirth, Guido Stiebritz, Thomas Studnitzky, Kay Reuter, Francois Dary, Mike Stawovy
  • Patent number: 11083431
    Abstract: An X-ray fluoroscopy imaging apparatus that confirms the radiation field of a radiation imaging when an operator performs an examination in an operation room. A collimator 12 has a plurality of collimator-leaves 61 positioned and forming a first X-ray radiation field E1 while performing an X-ray fluoroscopy. The apparatus allows an operator, in an operating room distant from an imaging room, to operate an aperture change to confirm the radiation field and each of the collimator-leaves 61 shifts to a position where the X-ray radiation field is reduced to a smaller dimension field E2. Visualizing a displayed X-ray image allows the operator to confirm reaching the radiation field E2.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 10, 2021
    Assignee: SHIMADZU CORPORATION
    Inventor: Tanaka Masahiro
  • Patent number: 11051774
    Abstract: The invention relates to a computed tomography radiological apparatus including: an X-ray source (22) capable of emitting an X-ray beam longitudinally towards an object, a device (32) for simultaneously splitting the beam into a plurality of beam portions each having a defined propagation direction relative to the longitudinal direction of emission of said X-ray beam, several sensors (20a-c) intended to receive beam portions which irradiated the object and are arranged transversely side by side relative to the longitudinal direction of the beam, the assembly consisting of X-ray source-splitting device-sensors being capable of turning about an axis of rotation (24) and of adopting different geometric orientations that are angularly shifted with respect to one another in order to, on the one hand, irradiate the object along each one of said geometric orientations of said assembly with the plurality of X-ray beam portions, and, on the other hand, to receive along each one of these geometric orientations the p
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: July 6, 2021
    Inventors: Sylvie M. Bothorel, Colombe Maury
  • Patent number: 11033245
    Abstract: In one embodiment, an X-ray CT apparatus includes: an X-ray detector equipped with a plurality of detection elements each of which is configured to output an X-ray signal in accordance with X-rays passing through an object; and a scan controller configured to acquire X-ray signals in each of a first mode and a second mode in one scan by switching between the first mode and the second mode, the first mode being a mode of acquiring high-resolution data which are respective X-ray signals outputted from the plurality of detection elements, the second mode being a mode of acquiring normal-resolution data in which X-ray signals outputted from some of the plurality of detection elements are integrated.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 15, 2021
    Assignee: Canon Medical Systems Corporation
    Inventors: Yoji Kudo, Masahiko Yamazaki, Takashi Kanemaru, Shuya Nambu, Machiko Iso
  • Patent number: 10937560
    Abstract: A method of limiting a X-ray beam, for example in connection with an extraoral radiographic apparatus, includes moving at least two blades of a blade limiting device through one actuator only, so as to produce a X-ray beam having the desired shape, wherein the actuator moves the at least two blades at the same time, in a direct way and in the same direction, even in the event of inversion of the direction of movement of the blades.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 2, 2021
    Inventors: Dario Righini, Sergio Salsini, Francesco Sciarra
  • Patent number: 10835189
    Abstract: Provided herein are x-ray imaging systems, methods of x-radiography, and methods of manufacture of collimators suitable for use in x-ray imaging systems and methods of x-radiography. The systems, methods and devices proposed here may assist in providing for improved magnification of x-rays in an x-ray imaging system with improved image quality compared to known systems. It may find applications in a variety of x-ray applications, for example x-ray CT (Computed Tomography) and 2D projectional radiography for e.g. non-destructing testing purposes.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 17, 2020
    Assignee: ROLLS-ROYCE PLC
    Inventors: Daniel Clark, Timothy J. Barden
  • Patent number: 10786689
    Abstract: An example particle therapy system includes a particle accelerator to output a particle beam having a spot size; a scanning system for the particle accelerator to scan the particle beam in two dimensions across at least part of a treatment area of an irradiation target; and an adaptive aperture between the scanning system and the irradiation target. The adaptive aperture includes structures that are movable relative to the irradiation target to approximate a shape to trim part of the treatment area. The part of the treatment area has a size that is based on an area of the spot size.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: September 29, 2020
    Assignee: Mevion Medical Systems, Inc.
    Inventors: Gerrit Townsend Zwart, Mark R. Jones, Miles S. Wagner, James Cooley, Eros Pedroni, Robert Silva
  • Patent number: 10782252
    Abstract: An X-ray analysis apparatus and method. The apparatus comprises an adjustable slit (210) between an X-ray source (4) and a sample (6); and optionally a further slit (220, 220a). A controller (17) is configured to control a width of the adjustable slit, between a first width, a larger second width, and an even larger third width. At the first and second widths: the adjustable slit (210) limits the divergence of the incident beam and thereby limits an area of the sample that is irradiated; and the further slit (220) does not limit the divergence of the incident beam. At the third width: the adjustable slit (210) does not limit the divergence of the incident beam, and the further slit (220) limits the divergence of the incident beam and thereby limits the area of the sample that is irradiated. Alternatively, at the third width, the adjustable slit (210) continues to limit the area irradiated.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 22, 2020
    Assignee: MALVERN PANALYTICAL B.V.
    Inventors: Milen Gateshki, Detlef Beckers
  • Patent number: 10754057
    Abstract: Systems and methods are used to increase the penetration and reduce the exclusion zone of radiographic systems. An X-ray detection method irradiates an object with X-ray fanlets including vertically moving fan beams, each fanlet having an angular range smaller than the angular coverage of the object. The fanlets are produced by modulating an X-ray beam, synchronizing the X-ray beam and the fanlets, detecting the fanlets irradiating the object, collecting image slices from the detector array corresponding to a complete scan cycle of the fanlets, and processing the image slices collected for combining into a composite image.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 25, 2020
    Assignee: Rapiscan Systems, Inc.
    Inventors: Joseph Bendahan, James Ollier
  • Patent number: 10729390
    Abstract: The invention relates to an X-ray imaging device including a rotary collimator having a region (22) which is opaque to X-rays, a first slot (24) and a second slot (26), which are transparent to X-rays and extend in two different directions, passing through the opaque region, the collimator making it possible to determine the position of an element provided with X-ray sensors in an imaging system (FIG. 1).
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: August 4, 2020
    Assignees: SURGIQUAL INSTITUTE, UNIVERSITÉ GRENOBLE ALPES, CENTRE HOSPITALIER UNIVERSITAIRE DE GRENOBLE
    Inventors: Yannick Grondin, Philippe Augerat, Philippe Cinquin, Laurent Desbat, Marion Decrouez
  • Patent number: 10722196
    Abstract: A radiographic diagnosis apparatus according to a present embodiment includes: an X-ray source configured to generate an X-ray; an X-ray detector configured to detect the X-ray and to generate an electric signal according to the X-ray; and a collimator provided on an X-ray incident side of the X-ray detector and the collimator including an absorption wall configured to absorb a scattered X-ray. The absorption wall includes absorption portions arranged along an incident direction of the X-ray. The absorption portions are arranged at unequal intervals along the incident direction.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: July 28, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Masahiko Yamazaki
  • Patent number: 10695012
    Abstract: A multiple frame imaging system comprising: radiation source; a detector having an input area; a monitor configured to display detected images; means for determining at least one Region of Interest (ROI) of an object on the displayed image; and a collimator comprising means for projecting the at least one region of interest (ROI) on at least one selected fraction of the input area exposed by said x-ray source, the collimator comprising at least three essentially non-overlapping plates mounted in a plane generally parallel to the detector input surface plane, wherein each plate comprises a first edge in contact with an edge of a first neighboring plate and a second edge adjacent to said first edge in contact with an edge of a second neighboring plate; and means for moving each one of the plates.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 30, 2020
    Assignee: CONTROLRAD SYSTEMS INC.
    Inventors: Haim Zvi Melman, Liron Melman, Nir Eden, Gilad Nave-Frost, Allon Guez
  • Patent number: 10687779
    Abstract: A portable medical imaging system includes a movable station, a detector panel, an X-ray beam transmitter, and a controller. The movable station includes a c-arm having a first end and a second end that are movable along an arc relative to the movable station. The detector panel is attached to the first end of the movable c-arm. The X-ray beam transmitter faces the detector panel and is attached to the second end of the c-arm. The X-ray beam transmitter contains a collimator that forms a window through which an X-ray beam is transmitted toward the detector panel. The collimator is configured to move the widow in a lateral direction across a direction of the arc. The controller is configured to control movement of the window by the collimator to steer the X-ray beam laterally across the detector panel.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: June 23, 2020
    Inventors: Norbert Johnson, Robert Stevens, Hisham Salem, Yuan Cheng
  • Patent number: 10682103
    Abstract: A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system with at least two different energy characteristics. The image data can be reconstructed using reconstruction techniques.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 16, 2020
    Assignee: Medtronic Navigation, Inc.
    Inventors: David A. Garlow, Robert P. Cloutier, Elizabeth A. Levasseur
  • Patent number: 10658089
    Abstract: The present disclosure relates to a motion guidance assembly for guiding the motion of a collimator device. The motion guidance assembly may include a first pair of flexible plates connected to the collimator device. The first pair of flexible plates may be deformable in a direction perpendicular to an opening of the collimator device. A deformation of the first pair of flexible plates may guide the motion of the collimator device based on a driving force.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: May 19, 2020
    Assignee: UIH AMERICA, INC.
    Inventor: Ronald Sharpless
  • Patent number: 10560988
    Abstract: The present disclosure provides a display module and a method for coating the same, which can prevent and/or reduce the occurrence of black seam between display modules that are arranged adjacent to each other. According to an example aspect of the present disclosure, a display module includes a printed circuit board; a plurality of luminous elements arranged at predetermined intervals on the printed circuit board; and a coating layer comprising a coating disposed between the respective luminous elements, disposed around side surfaces of the respective luminous elements positioned at an outermost, and formed to have a height that is substantially equal to a height of the side surfaces of the luminous elements, the coating being configured to block side light of the respective luminous elements.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 11, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-min Kim, Ho-seong Shin, Kyoung-hwan Jang
  • Patent number: 10556129
    Abstract: A medical device for treating a skin of a patient includes: a radiation source configured to provide radiation; a collimator coupled to the radiation source; and an optical device for viewing a target area on the skin when a distal end of the medical device is covering the skin. A method of treating a skin of a patient includes: providing a treatment device having a distal end, a radiation source, and a collimator, wherein the distal end is configured for placement over the skin of the patient so that the skin of the patient is covered by the distal end of the treatment device; and providing an image of a target on the skin when the distal end of the treatment device is covering the skin of the patient.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: February 11, 2020
    Assignee: Varian Medical Systems, Inc.
    Inventors: Gary F. Virshup, George A. Zdasiuk
  • Patent number: 10553325
    Abstract: A scattered radiation grid for an x-ray imaging is disclosed. In an embodiment, the scattered radiation grid includes alternately arranged layers permeable to x-ray radiation and absorbing x-ray radiation. The layers absorbing the x-ray radiation are formed from an amorphous material. Further, a method is disclosed for using an amorphous metal for the layers of a scattered radiation grid absorbing the x-ray radiation.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: February 4, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Rainer Becker, Manfred Ruehrig
  • Patent number: 10507339
    Abstract: Systems, devices, and methods for imaging-based calibration of radiation treatment couch position compensations.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 17, 2019
    Assignees: VARIAN MEDICAL SYSTEMS, INC., VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
    Inventors: Reto W. Filiberti, Stephen Gaudio
  • Patent number: 10492740
    Abstract: A device and to an associated method for a diagnostic apparatus. A housing unit can be aligned by way of a securing unit which is connected to the housing and it can be controlled in such a way that the diaphragm unit which is connected to the x-ray source and is arranged in the housing unit can be aligned in accordance with a specified position.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: December 3, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Franziska Dinse, Michael Fuhrmann, Philip Hafner, Michael Hufnagel, Joerg Krauss
  • Patent number: 10463323
    Abstract: The present invention relates to a rotatable X-ray detector. In order to improve clinical workflow, an X-ray detector arrangement (10) is provided that comprises an X-ray detector unit (12) and a rotation unit (14). The X-ray detector unit (12) comprises an X-ray detector (16) with a plurality of X-ray detecting elements arranged as a detector surface (18). The rotation unit (14) is configured to rotate the X-ray detector about an axis (20) perpendicular to the detecting surface (18) at least at a point of intersection with the detector surface (18) upon receiving a rotation signal (22). Further, the rotation signal (22) is dependently ruled by a collimator configuration of an X-ray source arrangement for providing X-ray radiation towards the X-ray detector unit.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Hanns-Ingo Maack
  • Patent number: 10462888
    Abstract: A system and method for determining a position of a focal spot of an X-ray source may be provided. The system may include a shelter to attenuate X-rays emitted from the focal spot of the X-ray source and an X-ray receiver to receive X-rays. The X-ray receiver may include a plurality of X-ray receiving regions. At least one of the plurality of X-ray receiving regions may X-rays that include attenuated X-rays by the shelter and unattenuated X-rays. The shelter and the X-ray receiver may reside between the X-ray source and an X-ray detector for determining the position of the focal spot.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Songchao Guo
  • Patent number: 10433798
    Abstract: An aperture comprises blocking members and for blocking X-rays. The blocking member has: an edge formed on an arc A1 lying on a circumference CF2 of a circle with radius r2 around a focal spot f in an XY-plane; an edge connected to one endpoint of the edge, the edge being formed to lie on the side of the X-ray detector with respect to an arc A11 contiguous to the arc A1; and an edge connected to the other endpoint of the edge, the edge being formed to lie on the side of the X-ray detector with respect to an arc A12 contiguous to the arc A1.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: October 8, 2019
    Assignee: General Electric Company
    Inventors: Kentaro Ogata, Kotaro Yamaura, Brandon Allan Smith
  • Patent number: 10423857
    Abstract: An imaging apparatus of an embodiment of the present invention includes an imaging means (an imaging unit), and a CPU that is configured to perform orientation detection (an orientation detecting unit) to detect an orientation of the imaging apparatus, perform subject detection (a detecting unit) to detect a subject in a detection area (a detection area in a live view image) in an image captured by the imaging means (the live view image), and perform position change (a position changing unit) to change the position of the detection area in the image according to the detected orientation of the imaging apparatus.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 24, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Tsutomu Shimono, Masayuki Endo
  • 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: 10395788
    Abstract: An x-ray collimator that may include a substrate containing a plurality of holes, each hole being frustoconical at one end and tubular at the other end for use in an x-ray imaging system, whereby the x-ray collimator may be aligned with a two-dimensional array of x-ray sources and a two-dimensional x-ray sensor, and whereby x-ray photons from the x-ray sources may pass through the collimator holes and emerge as a beam of x-ray photons in a narrow angle cone which may pass through a subject being imaged, positioned between the output holes of the collimator and the x-ray sensor.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 27, 2019
    Assignee: Adaptix Ltd
    Inventors: Gil Travish, Mark Evans, Robert Stevens
  • Patent number: 10342503
    Abstract: An X-ray image processing apparatus includes a storage unit, a transformed image generation unit, a scattered ray image generation unit, and a scattered ray reduced image generation unit. The storage unit stores a medical image. The transformed image generation unit generates a transformed image by transforming pixel values, of a plurality of pixel values constituting the medical image, which are higher than a reference value obtained based on a representative value of the plurality of pixel values into pixel values lower than the reference value. The scattered ray image generation unit generates a scattered ray image based on the transformed image and a scattering function. The scattered ray reduced image generation unit generates a scattered ray reduced image with reduced scattered rays by using the medical image and the scattered ray image.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 9, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yoshimasa Kobayashi, Hisanori Kato, Shumpei Ohashi
  • Patent number: 10265033
    Abstract: Disclosed is a dental X-ray CT photographic device. In order to resolve this issue, the CT photographic device according to the present invention comprises: a column; a first facing part which is disposed oriented towards an object to be examined on one side of the column, and comprises one or other of an X-ray generator and an X-ray sensor; a rotational arm coupled in such a way as to be able to rotate through at least a predetermined angular range with respect to the column; and a second facing part which is disposed on the rotating arm, on the far side from the column, facing the first facing part with the object to be examined placed in between, and which comprises the other of an X-ray generator and an X-ray sensor.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 23, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Hyung Keun Lim, Jin Pyo Chun
  • Patent number: 10261033
    Abstract: A method and apparatus for identifying a material in an object. An image of the object generated from energy passing through the object is obtained by a computer system. The computer system estimates attenuations for pixels in a sensor system from the image of the object to form estimated attenuations. The estimated attenuations represent a loss of the energy that occurs from the energy passing through the object. The computer system also identifies the material in the object using the estimated attenuations and known attenuation information for identifying the material in the object.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: April 16, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Edward Steven Jimenez, Jr., Kyle R. Thompson
  • Patent number: 10244993
    Abstract: The present invention relates to a compression and shielding device (10) for X-ray mammography, an X-ray mammography system, and a method for X-ray mammography. The compression and shielding device (10) for X-ray mammography comprises a compression element (11), and a shielding (12). The compression element (11) is arranged to compress a part of the breast to be examined. The shielding (12) is to be arranged between an X-ray source (2) and the compression element (11) to shield an uncompressed part of the breast from the X-ray radiation. The shielding (12) is formed to allow the direction of X-ray radiation to the compressed part of the breast and to keep an uncompressed part of the breast uncovered.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 2, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Dominik Benjamin Kutra, Thomas Buelow, Cristian Lorenz, Daniel Bystrov
  • Patent number: 10241060
    Abstract: Provided is an X-ray imaging apparatus which includes a collimator configured to adjust an irradiation range of an X-ray irradiated from the X-ray source. The collimator comprises a first field size range adjustor comprising a first plurality of blades and a driving power transfer unit configured to transfer driving power to the first plurality of blades, a second field size range adjustor facing the first field size range adjustor and comprising a first plurality of blades, and a connector configured to respectively connect the first plurality of blades of the first field size range adjustor to the first plurality of blades of the second field size range adjustor so as to make the first plurality of blades of the second field size range adjustor move as the first plurality of blades of the first field size range adjustor move.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae-soo Kim
  • Patent number: 10219761
    Abstract: A multilayer staggered coupling collimator includes multiple collimating layers, multiple collimating orifices being provided on each collimating layer. At least two collimating layers are in a staggered coupling relationship. Compared with a single-layer collimator, the multilayer staggered coupling collimator can improve the performance, achieve multi-performance selection functions, and have a better machining feasibility. Since the thickness of each collimating layer is less after the collimator is divided into several collimating layers, the machining precision is easy to ensure.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: March 5, 2019
    Assignee: WUHAN ACEHIVISION TECHNOLOGY CO., LTD
    Inventors: Yanzhao Li, Qingguo Xie
  • Patent number: 10173076
    Abstract: A radiation treatment plan is determined by: [1] receiving a current fluence map defining a radiation dose; [2] receiving a current control-point sequence describing machine settings for a collimator associated with a radiation source; [3] determining an updated fluence map and an updated control-point sequence based on the current fluence map; [4] determining a further updated control-point sequence based on the updated control-point sequence and the updated fluence map; [5] determining a further updated fluence map based on the updated fluence map, the updated control-point sequence and the further updated control-point sequence; [6] checking if a stopping criterion is fulfilled; if so: stopping the process, and producing an output radiation treatment plan based on the further updated control-point sequence; and otherwise: setting the further updated fluence map, or zero, to the current fluence map; setting the further updated control-point sequence to the current control-point sequence; and returning to st
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 8, 2019
    Assignee: RAYSEARCH LABORATORIES AB
    Inventors: Rasmus Bokrantz, Björn Hårdemark, Albin Fredriksson
  • Patent number: 10010300
    Abstract: A bite-block and film-holding device is used with an x-ray film or a digital image sensor and held by a patient between teeth to align with an external camera device for dental radiographic imaging of the patient's teeth. The bite-block and film-holding device includes a disposable film holder having a bite block portion, a film-holding portion made of a plastic material, and a bonding member having a release layer attached thereto; and an aiming assembly having a coupling arm coupled to the disposable film-holder and an aiming ring assembly installed on the camera device and connected to the coupling arm. The aiming ring assembly is adjustable in position for the camera device to face at a right angle to the film-holding portion. After the dental radiographic imaging, the disposable film holder is separated from the aiming assembly and discarded to ensure the patient's oral cavity hygiene and health.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 3, 2018
    Inventor: Yin Chao Yao
  • Patent number: 9997269
    Abstract: A radiographic apparatus may comprise: a radiation irradiating module configured to irradiate radiation to an object; and/or a processing module configured to automatically set a part of a region to which the radiation irradiating module is able to irradiate the radiation, to a region of interest, and further configured to determine at least one of a radiation irradiation position and a radiation irradiation zone of the radiation irradiating module based on the region of interest.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 12, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Shik Roh, Seung Yong Hyung, Ji Yeun Kim, Jong Won Lee, Ju Suk Lee, Won Jun Hwang, Hyo Seok Hwang
  • Patent number: 9993219
    Abstract: A device for estimating scatter in X-ray imaging is described. An anti-scatter grid with varying grid ratio is used in conjunction with an X-ray detector. The anti-scatter grid comprises attenuating lamellae that block scattered radiation. The anti-scatter grid contains regions of lesser or greater scatter rejection efficiency, which can be achieved by variations in the grid ratio. Contrast between these regions can be used to estimate residual scatter content. A method for estimating scatter from this device is further described.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 12, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventor: Scott Hsieh
  • Patent number: 9934930
    Abstract: An x-ray target, a method of using the x-ray target, and a computer program product with instructions for carrying out a method of using the x-ray target. The x-ray target includes a substrate made from a soft x-ray producing material and a high aspect ratio structure made from a hard x-ray producing material. The hard x-ray producing material is embedded in the substrate, formed on the substrate, cantilevered out from the edge of the substrate, or any combination thereof. The high aspect ratio structure comprises a plurality of high aspect ratio structures arranged in one or more grids or arrays, and the high aspect ratio structures in one of the one or more grids or arrays are arranged to form a Hadamard matrix structure.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 3, 2018
    Assignee: FEI Company
    Inventors: N. William Parker, Mark W. Utlaut, Laurens Franz Taemsz Kwakman, Thomas G. Miller
  • Patent number: 9895116
    Abstract: A fail safe concealment mechanism for a radiation imaging capsule, including, a collimator having a first area that blocks radiation and an second area that releases radiation, a radiation source that is initially positioned inside the collimator in the area that blocks radiation, a linear mechanism that moves the radiation source inside the collimator to the area that releases radiation when power is provided to the mechanism and automatically returns the radiation source to the area that blocks radiation when power is not provided to the mechanism.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 20, 2018
    Assignee: CHECK-CAP LTD.
    Inventors: Yoav Kimchy, Shai Brenner