With Movable Source Patents (Class 378/196)
  • Patent number: 10307115
    Abstract: A system for cone beam computed tomography of an extremity has an x-ray source and a digital radiographic detector both revolved about a central imaging axis so that the detector moves at least partially around a first extremity of a patient and, if the extremity is the leg of the patient, the detector moves between the legs of the patient. The detector path has a radial distance less than that of the source path. A housing that encloses the source and detector includes a pivoting door to allow sideways access for the patient's leg to be placed at the central imaging axis.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: June 4, 2019
    Assignee: Carestream Health, Inc.
    Inventors: John Yorkston, Robert J. Asento, Jeffrey H. Siewerdsen, David H. Foos
  • Patent number: 10244998
    Abstract: A medical imaging device mountable on a support structure having a horizontal surface and at least one substantially vertical surface. The imaging device includes a frame and a gantry having a radiation source and a radiation detector. The gantry is rotatable with respect to the frame. The imaging device includes a first vertical adjustment element and a second vertical adjustment element. The first vertical adjustment element has a first end couplable to the horizontal surface and a second end coupled to the frame, the first end is located a first distance from the second end, and adjustable over a first range. The second vertical adjustment element has a third end coupled to the frame and a fourth end coupled to the gantry. The third end is located a second distance from the fourth end, and is adjustable over a second range, and the fourth end is rotatable with respect to the third end.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: April 2, 2019
    Assignee: DENTAL IMAGING TECHNOLOGIES CORPORATION
    Inventors: Frederick W. Cowdery, Frank Speranza, Carl Anthony Yacono, Tyler Betteridge
  • Patent number: 10206641
    Abstract: A radiography system is provided. The radiography system includes a radiographic device arranged in a movable manner, a measuring device to measure at least one of external force and torque applied to the radiographic device, and a drive device to move the radiographic device based on a direction and magnitude of the at least one of the force and torque measured by the measuring device.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: February 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo Sang Yang, Woo Sup Han, Hyun Woong Hwang
  • Patent number: 10156528
    Abstract: This invention relates to a movable divided inspection system and method, wherein the scanning inspection system comprises a first radiation source, a first detection means, a first automated guided vehicle and a second automated guided vehicle. The first radiation source is mounted on the first automated guided vehicle. The first detection means is mounted on the second automated guided vehicle. The first automated guided vehicle and the second automated guided vehicle are able to drive the first radiation source and the first detection means to a preset scan inspection position, so as to form a scanning passage for passage of an article to be scanned between the first and second automated guided vehicle, such that scanning inspection of said article to be scanned is realized by relative movement of said article to be scanned with reference to said first automated guided vehicle and said second automated guided vehicle.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 18, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Zhiqiang Chen, Yuanjing Li, Shangmin Sun, Yu Hu, Yuan Ma, Qiangqiang Wang, Long Du, Wei Li
  • Patent number: 10139500
    Abstract: Disclosed herein is a method to measure an intensity distribution of X-ray using an X-ray detector, the method comprising: determining values of dark current at at least three locations on the X-ray detector, wherein the three locations are not on a straight line; determining a spatial variation of absorptance of the X-ray using the values of the dark current; measuring an apparent intensity distribution of the X-ray; determining the intensity distribution by removing a contribution of the spatial variation the absorptance from the apparent intensity distribution.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: November 27, 2018
    Assignee: SHENZHEN XPECTVISION TECHNOLOGY CO., LTD.
    Inventors: Peiyan Cao, Huabin Cheng
  • Patent number: 10130314
    Abstract: A method for recording a scan from a series of 2D X-ray projections using a C-arm X-ray apparatus to reconstruct a region of interest. The method includes positioning the C-arm X-ray apparatus in an initial configuration and, while recording a series of X-ray projection views: translating the C-arm along a first path within a C-arm plane parallel to the periphery of the C-arm until the central ray vector extends through the virtual scan center and the region of interest is disposed within the fan beam, moving the C-arm peripherally along the orbital movement axis by at least 180° minus the fan angle, and translating the C-arm along a second path within the C-arm plane until the second limiting vector of the fan beam is tangential to the region of interest.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 20, 2018
    Assignee: Ziehm Imaging GmbH
    Inventor: Ludwig Ritschl
  • Patent number: 10117632
    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: January 30, 2018
    Date of Patent: November 6, 2018
    Assignee: Globus Medical, Inc.
    Inventors: Norbert Johnson, Robert Stevens, Hisham Salem, Yuan Cheng
  • Patent number: 10102624
    Abstract: First and second image obtaining units respectively obtain a plurality of first projection images and a plurality of second projection images by tomosynthesis imaging operations according to first and second imaging conditions. A reconstructing unit reconstructs the plurality of first and second projection images employing processes of a reconstruction process that includes a filtering process other than the filtering process, to generate a plurality of first tomographic images and a plurality of second tomographic images for each of a plurality of cross sectional planes within a subject. A subtraction processing unit generates tomographic subtraction images from the first and second tomographic images. A filtering processing unit administers filtering processes on the tomographic subtraction images, to generate processed tomographic subtraction images.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 16, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Fukuda, Junya Morita
  • Patent number: 10092358
    Abstract: A station for tomotactic-guided biopsy in prone includes a table with an aperture, and a tomosynthesis imaging system. A biopsy gun can be mounted on a stage arm assembly disposed below the table. The imaging system and stage arm assembly can be independently rotated and linearly repositioned in one or more dimensions, thereby allowing the tomotactic scan axis to be located relative to a breast being imaged.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 9, 2018
    Assignee: Hologic, Inc.
    Inventors: Kenneth F. Defreitas, Ian Shaw, John Laviola
  • Patent number: 10080532
    Abstract: According to one embodiment, an X-ray diagnostic apparatus comprises a first imaging system, a second imaging system, a first support member, a second support member, control circuitry, and a reconstruction circuitry. The first projection data corresponds to a first imaging angle range. The second projection data corresponds to a second imaging angle range. A deficiency angle as an angle at which no imaging is performed is provided between the first imaging angle range and the second imaging angle range to make an imaging angle range in the projection data group have discontinuity.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: September 25, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Satoru Ohishi
  • Patent number: 10080537
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a first arm, a second arm, a holding structure, an X-ray tube and an X-ray detector. The first arm rotates by a first rotating shaft and slides along a first arc-like slide axis relatively to the first rotating shaft. The second arm rotates by a second rotating shaft and slides along a second arc-like slide axis relatively to the second rotating shaft. The holding structure is connected with a first arm side and configured to hold the second arm. The X-ray tube and the X-ray detector are installed on the second arm.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 25, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Kouji Noda
  • Patent number: 10070834
    Abstract: An X-ray photography device capable of readily photographing by switching to various photography modes such as a standing mode, a table mode and the like with one X-ray photography device is disclosed. To this end, the X-ray photographing device comprises: a base frame; a support frame pivotably coupled to one side of the base frame through a hinge shaft and on one side of which an X-ray detector for detecting X-rays irradiated from an X-ray generation device is slidably provided; and an actuator of which one end is rotatably fixed to the base frame and of which the other end is rotatably fixed to the support frame spaced at a predetermined distance from the hinge shaft, and which pivots the support frame around the hinge shaft within a predetermined angle range while moving a driving shaft therein forward and backward by pneumatic or hydraulic pressure supplied from the outside.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: September 11, 2018
    Assignee: Listem Corporation
    Inventors: Chang Ho Moon, Jung Hyun Moon, Sang Jin Moon, Jung Wook Shin
  • Patent number: 10058298
    Abstract: A radiographic system includes a photographic unit; an operating panel including a button configured to be pressed to indicate that a movement direction of the photographic unit is to be limited to a specific movement direction; a measurement unit provided between the operating panel and the photographic unit and configured to measure a magnitude and a direction of an external force applied to the operating panel; and a drive unit configured to move the photographic unit only in the specific movement direction based on the magnitude and the direction of the external force measured by the measurement unit in response to the button being pressed.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: August 28, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Jae Lee, Soo Sang Yang, Hyeon Min Lee, Jeong Pil Lee, Woo Sup Han, Hyun Woong Hwang, Seung Hoon Shin, Do Hyeong Hwang, Jong Beom Her
  • Patent number: 10058295
    Abstract: According to one embodiment of an X-ray imaging system, a column, including a first sub column, a second sub column, a third sub column, a first connector, and a second connector, supports an X-ray tube. The first connector connects the second sub column to the first sub column and includes a first rotation axis parallel to a short axis of a tabletop. The second connector connects the third sub column to the second sub column and includes a second rotation axis perpendicular to the first rotation axis and a central axis of the second sub column. The third sub column supports the X-ray tube.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: August 28, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroki Tonotsuka, Shunichiro Nishigaki, Seiichi Nishizuka
  • Patent number: 9980688
    Abstract: The present invention relates to acquisition of medical image information of an object. In order to improve operating theaters and allow more effective use of equipment and staff during interventions, a medical X-ray system (10) is provided, comprising a patient support (12), an X-ray image acquisition arrangement (14), a support arrangement (16), and a rail arrangement (18). The image acquisition arrangement (14) acquires imaging information of an object of interest (20) arranged on the patient support (12). The rail arrangement (18) is provided overhead. The support arrangement (16) is movably mounted to the rail arrangement (18), and at least movable along the rail arrangement (18). The image acquisition arrangement (14) is movably mounted to the support arrangement (16) to allow image acquisition of the object (20) from different directions. The rail arrangement (18) is arranged transversely to a longitudinal direction of the patient support.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: May 29, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Erik Johannes Maria Janssen, Johannes Herman Hubertus Mathijs Van Garderen, Johan Juliana Dries, Arnoldus Johannes Maria Van Der Stappen
  • Patent number: 9974493
    Abstract: Apparatus and method for obtaining computed tomography are disclosed. The computed tomography apparatus includes: an X-ray sensor and an X-ray generator disposed on both sides of a subject and facing each other; a first driving unit configured to move at least one of the X-ray sensor and the X-ray generator reciprocally in an angle range; and a second driving unit moving configured to move at least one of the X-ray sensor and the X-ray generator in a vertical direction of the object, simultaneously or alternately with the first driving unit.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: May 22, 2018
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Tae Woo Kim, Hyung Keun Lim, Jin Pyo Chun, Sung Il Choi
  • Patent number: 9959683
    Abstract: A 3-D model of a body part is created by using an object comprising markers, fixation members, and struts. The method involves first and second roentgenograms of the body part and the object disposed between an x-ray source and an x-ray imager. It then determines first and second sets of distances between projections of the markers or the struts, and determines first and second 3-D positions of the x-ray source and of the object with respect to the x-ray imager using predetermined distances between the markers or struts and the first and second sets of distances between their projections. The method then aligns the first and second 3-D object projections in a 3-D reference frame using the 3-D positions of the markers or struts with respect to the x-ray imager in the two orientations. The method creates the 3-D model of the object based on the 3-D object projections.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 1, 2018
    Assignees: Texas Scottish Rite Hospital for Children, AMEI Technologies, Inc.
    Inventors: Konstantin Evgenevich Mikheev, Petr Stanislavovich Vvedenskiy, Alexander Alexandrovich Morenko, Dmitry Alexandrovich Sivachev, Mikhail Samchukov, Alexander Cherkashin
  • Patent number: 9949703
    Abstract: An x-ray imaging apparatus revolves a digital radiation detector and a radiation source about an imaging area where a subject is positioned to be imaged. A housing encloses the source and the detector, and includes an open housing gap to allow movement of the subject into the imaging area by moving through the open gap. A housing extension may be deployed to close the housing gap and to enclose the detector as it revolves. Shielding assemblies prevent exterior access into the housing.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 24, 2018
    Assignee: Carestream Health, Inc.
    Inventors: Anthony Dirisio, Joseph E. Stagnitto, Michael A. Litzenberger, William C. Wendlandt, Peter A. Newman
  • Patent number: 9918693
    Abstract: According to one embodiment, an X-ray CT apparatus includes a rotating body configured to house an X-ray tube which irradiates X-rays on an object; at least one weight configured to be housed in the rotating body and to adjust balance of the rotating body; a sensor configured to detect fluctuation amount in a front-back direction approximately orthogonal to a rotating surface of the rotating body; processing circuitry configured to determine moving amount of the weight based on the fluctuation amount in a front-back direction detected by the sensor; and at least one weight moving mechanism configured to be housed in the rotating body and to move a position of the weight based on the moving amount determined by the determination unit.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: March 20, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Katsumi Gotanda
  • Patent number: 9883845
    Abstract: A radiographic apparatus includes a radiation source that emits radiation, a radiation detection unit that detects the radiation emitted from the radiation source, and having transmitted the object of a subject to be examined, a holding unit that holds the object to be examined between the radiation source and the radiation detection unit, and a control unit that performs control for determining an imaging condition, based on information related to the posture of the subject.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Tsujii
  • Patent number: 9861329
    Abstract: An X-ray apparatus includes: a source configured to emit X-rays to an object; a detector configured to detect the X-rays that have penetrated the object; an arm configured to connect the source to the detector and move centering on a stand fixed to a bottom; a controller configured to control a movement of the arm so that the controller changes a direction of the X-rays, which are radiated to the object, and the arm rotates on the stand to move the detector in a first direction, to obtain images for a plurality of parts of the object; and an image processor configured to obtain the images for the plurality of parts of the object based on the X-rays detected by the detector.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-woo Shin, Jeong-hwan Kim, Do-kwan Oh, Dong-jae Lee, Sang-chul Lee
  • Patent number: 9763640
    Abstract: A 3D image generation method includes controlling a G-arm frame to rotate to a target angle, and keeping the currents and voltages of two X-ray tubes unchanged during rotation, obtaining groups of 2D projection data of an object when a G-arm is in different angles, each group of 2D projection data including two paths of projection data, conducting calculation according to an FDK algorithm or an FDK correction algorithm using the groups of 2D projection data to obtain a 3D image of the object, and outputting the 3D image, thereby greatly reducing the data obtaining time by obtaining two paths of projection data, effectively reducing the irradiation time of the object, directly outputting the 3D image of the object, reflecting the full view information about the object, and solving the problem in the prior art that the irradiation time of the object under examination of X-rays is long.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 19, 2017
    Assignee: BEIJING EAST WHALE IMAGE TECHNOLOGY CO., LTD.
    Inventors: Fubing Li, Shiyu Wei, Xun Zhu
  • Patent number: 9706629
    Abstract: An x-ray apparatus is configured with a C-arm frame. At one end of the C-arm frame an x-ray source is arranged and at the other end of which a detector for recording radiation emitted by the x-ray source is arranged. A voltage generator is provided for supplying a voltage to the x-ray source. At least one component of the voltage generator and the x-ray source are arranged separately from one another. The at least one component of the voltage generator is positioned at the same end of the C-arm frame at which the detector is arranged, as a result of which a weight equalization can be implemented in a simpler manner.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: July 11, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jens Fehre, Udo Heinze, Ralf Nanke
  • Patent number: 9633480
    Abstract: An image obtaining unit obtains a subject image, a body thickness distribution modifying unit receives input of a virtual model having an estimated body thickness distribution and modifies the estimated body thickness distribution of the virtual model to output the modified estimated body thickness distribution, and a body thickness distribution determining unit determines the outputted estimated body thickness distribution to be used as the body thickness distribution of the subject.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Jun Enomoto, Yasufumi Oda, Takashi Tajima, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa
  • Patent number: 9561009
    Abstract: One embodiment of the present disclosure is directed to a mobile X-ray unit. The mobile X-ray unit may include a base accommodating a control unit for controlling an X-ray applicator and a power supply for supplying power to the X-ray applicator. The mobile X-ray unit may further include an arm associated with the base. The arm may be configured to support an X-ray applicator having an X-ray tube. The arm may be articuable. The X-ray tube may include a target element configured to generate an X-ray beam and a collimator configured to shape the X-ray beam. The target element may be disposed at a set distance from the collimator.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 7, 2017
    Assignee: Nucletron Operations B.V.
    Inventors: Bas Woudstra, Wim De Jager
  • Patent number: 9517044
    Abstract: A system and method to perform image acquisition of a subject is provided. The system includes a mobile device to move an imaging system across a floor, and a brake system that restrains movement of the mobile device. A controller includes a memory having program instructions to instruct a processor to perform the steps of: instructing movement of the mobile device in support of the imaging system to a first position for image acquisition of the subject; receiving feedback that the mobile device is located at the first position; and applying a brake force to restrain movement of the mobile device. The step of applying the brake force includes generating a vacuum in restraint of movement of the mobile device with respect to the floor.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 13, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Bernard Bouvier
  • Patent number: 9510798
    Abstract: An apparatus for balancing a statically unbalanced system, particularly useful in balancing X-ray and mammography systems having an X-ray source and detector mounted to a rotational arm, includes a spring mechanism which synchronizes the activation of the spring mechanism with the rotation of the arm of the mammography system. The balancing system reduces the amount of torque necessary to rotate the arm and decreases the overall inertia of the system by eliminating the need for counterweights to maintain balance of the system.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 6, 2016
    Assignee: General Electric Company
    Inventors: Ying Mao, Romain Moulin
  • Patent number: 9427204
    Abstract: In a C-arm system and a method for image acquisition of an x-ray projection image, wherein the projection region of the subject that is to be images is larger than the maximum projection region covered by a stationary x-ray beam, and to generate a complete exposure of the entire projection region to be imaged, at least two individual projection exposures are generated and combined. The generation of the at least two individual exposures takes place with a focus that is stationary relative to the subject and with a modified spatial angle of the emitted x-ray beam.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: August 30, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventor: Rainer Graumann
  • Patent number: 9412200
    Abstract: A system and a method are disclosed that allow for generation of a model or reconstruction of a model of a subject based upon acquired image data. The image data can be acquired in a substantially mobile system that can be moved relative to a subject to allow for image acquisition from a plurality of orientations relative to the subject. The plurality of orientations can include a first and final orientation and a predetermined path along which an image data collector or detector can move to acquire an appropriate image data set to allow for the model of construction.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 9, 2016
    Assignee: Medtronic Navigation, Inc.
    Inventors: Patrick A. Helm, Shuanghe Shi
  • Patent number: 9387347
    Abstract: Systems, methods, and related computer program products for image-guided radiation treatment (IGRT) are described. Provided according to one preferred embodiment is an IGRT apparatus including a barrel-style rotatable gantry structure that provides high mechanical stability, versatility in radiation delivery, and versatility in target tracking. Methods for treatment radiation delivery using the IGRT apparatus include conical non-coplanar rotational arc therapy and cono-helical non-coplanar rotational arc therapy. A radiation treatment head (MV source) and a treatment guidance imaging system including a kV imaging source are mounted to and rotatable with a common barrel-style rotatable gantry structure, or alternatively the MV and kV sources are mounted to separate barrel-style rotatable gantry structures independently rotatable around a common axis of rotation.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 12, 2016
    Assignee: Accuray Incorporated
    Inventor: Calvin R. Maurer, Jr.
  • Patent number: 9357916
    Abstract: Methods for analyzing and visualizing OCT angiography data are presented. In one embodiment, an automated method for identifying the foveal avascular zone in a two dimensional en face image generated from motion contrast data is presented. Several 3D visualization techniques are presented including one in which a particular vessel is selected in a motion contrast image and all connected vessels are highlighted. A further embodiment includes a stereoscopic visualization method. In addition, a variety of metrics for characterizing OCT angiography image data are described.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: June 7, 2016
    Assignee: CARL ZEISS MEDITEC, INC.
    Inventors: Siddharth Srivastava, Utkarsh Sharma, Mary K. Durbin, Tilman Schmoll
  • Patent number: 9299143
    Abstract: An image processing method includes: obtaining an image that includes a ball image and a cone image; obtaining an estimate of a center of the ball image; converting the image to a converted image using a processor based at least in part on the estimate of the center of the ball image, wherein the converted image comprises a converted ball image that looks different from the ball image in the image, and a converted cone image that looks different from the cone image in the image; identifying the converted ball image in the converted image; and analyzing the converted ball image to determine a score that represents an accuracy of the estimate of the center of the ball image.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: March 29, 2016
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventor: Stephen Gaudio
  • Patent number: 9226723
    Abstract: A spectral computed tomography (CT) ordered subsets (OS) reconstruction method using two sets of projection data having a different number of views is provided. The method includes obtaining a first set of projection data that includes single-energy CT data for a first number of views, obtaining a second set of projection data that includes spectral CT data for a second number of views, wherein the first and second numbers are integers and the second number is smaller than the first number, partitioning the first set of projection data into N equal-sized subsets of projection data, including the second set of projection data in each of the N subsets of projection data to generate N expanded subsets of projection data, and performing OS reconstruction with the N expanded subsets of projection data to generate a reconstructed CT image.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 5, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Daxin Shi, Yu Zou, Zhou Yu
  • Patent number: 9185301
    Abstract: A drive mechanism for a mobile imaging system comprises a main drive geared into a drive wheel for propelling the imaging system, including a base and one or more imaging components, across a surface. The drive mechanism can also include a scan drive that moves the drive mechanism and the one or more imaging components along an axis relative to the base to provide an imaging scan, and a suspension drive that extends the drive wheel relative to a bottom surface when the imaging system is in a transport mode and retracts the drive wheel relative to the bottom surface of the base when the imaging system is in an imaging mode. The drive wheel supports the weight of the imaging components, but does not directly support the base assembly, which can include pedestal and tabletop support. One or more casters located on the base can support the weight of the base assembly.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: November 10, 2015
    Assignee: MOBIUS IMAGING, LLC
    Inventors: Eugene A. Gregerson, Russell Stanton, Michael Allen, Michael Connor, Scott Coppen
  • Patent number: 9161732
    Abstract: A radiographic apparatus according to an embodiment includes storage, a shape image capture unit, an image acquiring unit, a position acquiring unit, a conversion unit, and a positional relationship adjusting unit. The shape image capture unit captures the shape image of an examinee. The image acquiring unit acquires a shape image from the storage. The position acquiring unit acquires a position in the acquired shape image which corresponds to a region of interest. The conversion unit converts the position in the acquired shape image into a position in the captured shape image. The positional relationship adjusting unit adjusts the positional relationship between a detector and the examinee on the basis of the conversion result.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 20, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Takuzo Takayama
  • Patent number: 9107633
    Abstract: The invention relates to a medical work station which has a medical technology apparatus and a patient support device. The medical technology apparatus includes a medical technology device and at least one first robot, which has a first robot arm, having a plurality of members and a first control device that controls a motion of the first robot arm. The medical technology device is attached to a first attaching device of the first robot arm. The patient support device includes a patient table and a second robot, which has a second robot arm having a plurality of members, and a second control device that controls a motion of the second robot arm. The patient table is attached to a second attaching device of the second robot arm.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 18, 2015
    Assignee: KUKA Roboter GmbH
    Inventor: Michael Muller
  • Patent number: 9057945
    Abstract: The present embodiments relate to an X-ray apparatus having a movable detector housing, in which a radiation detector is arranged. The X-ray apparatus includes at least one releasable interlock device configured to inhibit or enable the maneuverability of the movable detector housing. At least one control element is arranged on the movable detector housing, using which the at least one releasable interlock device is actuated. At least one grab handle element is also arranged on the movable detector housing. The movable detector housing is movable by hand and is holdable by a patient using the at least one grab handle element.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: June 16, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Dippl, Philip Materne, Thomas Will
  • Patent number: 9022650
    Abstract: An X-ray imaging apparatus comprises an X-ray generation unit; a plurality of supporting members configured to support the X-ray generation unit; and an accommodation unit configured to accommodate the X-ray generation unit and the plurality of supporting members, wherein the accommodation unit is formed by bringing a first member and a second member into contact with each other, each of the plurality of supporting members is connected to the first member by a first connecting portion that is rotatable and to the X-ray generation unit by a second connecting portion that is rotatable, and a support height of the X-ray generation unit supported by the supporting members can be adjusted in accordance with a distance between the first member and the second member.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Wataru Kaku, Yoshihiro Miyazawa, Hideki Hayashi, Takashi Ogura, Jun Murata
  • Patent number: 9025730
    Abstract: Systems and methods for braking and releasing one or more pivot joints used in an X-ray positioning device are described. The systems and methods use a support arm that extends between a main assembly of the x-ray positioning device and an X-ray imaging assembly with an X-ray source and an X-ray detector that are disposed nearly opposite to each other. The support arm includes one or more pivot joints (such as horizontal, lateral, and/or orbital pivot joints) that allow the imaging assembly to move with respect to the main assembly. The pivot joints can each be connected to an automated braking system that is capable of selectively locking and unlocking a corresponding pivot joint, as indicated by a user-controlled switching mechanism. The braking systems containing multiple pivot joints can be individually controlled by separate switching mechanisms or simultaneously controlled by a single switching mechanism. Other embodiments are described.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 5, 2015
    Assignee: General Electric Company
    Inventors: David Ellis Barker, John Matthew Simmons
  • Patent number: 9020100
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 28, 2015
    Assignee: America Science and Engineering, Inc.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers
  • Patent number: 9008268
    Abstract: An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiko Okunuki, Makoto Sato, Osamu Tsujii, Takashi Ogura, Hisashi Namba
  • Patent number: 9001962
    Abstract: The present invention pertains to an apparatus and method for medical imaging comprising rotating two X-ray source-detector pairs around an axis of rotation simultaneously to quickly acquire image data and form a computed tomography (CT) dataset. The sources can be configured to emit radiation from a plurality of discrete locations. The CT dataset can be utilized as a prior to reconstruct a three-dimensional image from subsequent bi-planar imaging with these source-detector pairs.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 7, 2015
    Assignee: Triple Ring Technologies, Inc.
    Inventor: Tobias Funk
  • Patent number: 8998487
    Abstract: An X-ray imaging apparatus comprises an X-ray source; a housing configured to accommodate the X-ray source; and a plurality of supporting legs each connected to the housing via a movable connecting portion and configured to support the housing, wherein each of the supporting legs can change, by the movable connecting portion, a support angle made by a ground plane and the supporting leg.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Watanabe, Hiroyuki Tokuda, Hitomi Ogasawara, Takashi Ogura, Jun Murata
  • Patent number: 8998486
    Abstract: An apparatus for cone beam computed tomography of an extremity has a digital radiation detector and a first device to move the detector along a circular detector path extending so that the detector moves both at least partially around a first extremity of the patient and between the first extremity and a second, adjacent extremity. The detector path has radius R1 sufficient to position the extremity approximately centered in the detector path. There is a radiation source with a second device to move the source along a concentric circular source path having a radius R2 greater than radius R1, radius R2 sufficiently long to allow adequate radiation exposure of the first extremity for an image capture by the detector. A first circumferential gap in the source path allows the second extremity to be positioned in the first circumferential gap during image capture.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 7, 2015
    Assignee: Carestream Health, Inc.
    Inventors: John Yorkston, Robert J. Asento, Jeffrey H. Siewerdsen, David H. Foos
  • Patent number: 8989469
    Abstract: A method of acquiring scatter data and image projection data in computed tomography is provided that includes attenuating a radiation source using a pattern of blockers arranged to provide blocked and unblocked regions of the radiation source, and acquiring image data and scatter data of a target using an imaging device. A scatter map in the projection image can be estimated by interpolation and/or extrapolation of the projection image using an appropriately programmed computer, subtracting the estimated scatter map from the projection image to obtain scatter-corrected projections, reconstructing a CBCT volume using a total variation regularization algorithm, and applying an iterative regularization process to suppress the noise level on the reconstructed CBCT volume.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 24, 2015
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Benjamin Pooya Fahimian, Lei Xing, Bowen Meng
  • Patent number: 8944680
    Abstract: An X-ray facility has at least one x-ray emitter, an x-ray detector and an isocenter arranged along a central beam path between the x-ray emitter and the x-ray detector. The x-ray emitter and the x-ray detector are arranged on separate support arms. At least one rotary device is provided on each support arm, by way of which the x-ray emitter or the x-ray detector can be rotated about an axis of rotation intersecting the isocenter and not corresponding to the central beam. Wherein the axes of rotation match rotary devices assigned to one another on different support arms.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Rainer Graumann
  • Patent number: 8942345
    Abstract: A method for obtaining a 3D image dataset of an object of interest is proposed. A plurality of 2D X-ray images are captured and a 3D reconstruction is carried out using filtered back projection. The projection parameters have been measured with the aid of a calibrating phantom, possibly using an interpolation or extrapolation of such measurements. A model of effect strings of the components in an X-ray imaging device is obtained, and the model parameters are identified based on imaging of a calibrating phantom. A projection matrix can then be calculated for any positions on any desired trajectories, without having to use imaging of a calibrating phantom at precisely that position and desired trajectory.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: January 27, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Frank Dennerlein, Oliver Hornung, Markus Kowarschik
  • Patent number: 8923484
    Abstract: A motion correction system and method for motion correction for an x-ray tube is presented. One embodiment of the motion correction system includes a sensing unit coupled to an x-ray tube to determine a distance with which an impingement location of an electron beam generated by the x-ray tube deviates from a determined location due to motion of the x-ray tube. The motion correction system further includes a control unit coupled to the sensing unit to generate a control signal corresponding to the distance with which the impingement location of the electron beam deviates. Also, the motion correction system includes a deflection unit coupled to the control unit to steer the electron beam to the determined location based on the generated control signal.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 30, 2014
    Assignee: General Electric Company
    Inventors: Yun Zou, Scott Stephen Zelakiewicz, Floribertus P. M. Heukensfeldt Jansen, Jeffrey Wayne Eberhard, Fengfeng Tao, Timothy Powers, Thomas Edmund Sjoberg
  • Patent number: 8899834
    Abstract: Systems and methods for braking and releasing one or more pivot joints used in an X-ray positioning device are described. The systems and methods use a support arm that extends between a main assembly of the x-ray positioning device and an X-ray imaging assembly with an X-ray source and an X-ray detector that are disposed nearly opposite to each other. The support arm includes one or more pivot joints (such as horizontal, lateral, and/or orbital pivot joints) that allow the imaging assembly to move with respect to the main assembly. The pivot joints can each be connected to an automated braking system that is capable of selectively locking and unlocking a corresponding pivot joint, as indicated by a user-controlled switching mechanism. The braking systems containing multiple pivot joints can be individually controlled by separate switching mechanisms or simultaneously controlled by a single switching mechanism. Other embodiments are described.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: December 2, 2014
    Assignee: General Electric Company
    Inventors: David Ellis Barker, John Matthew Simmons
  • Patent number: 8899832
    Abstract: A mobile patient positioning stand having vertical rails allowing a shield to be manually moved up and down to different heights based on the height of anatomy of the patient desired to be imaged. The shield may be positioned at a shield height for a certain height of anatomy of a patient so that markers on the shield identify multiple image areas within the total image area. After the shield is positioned, an image detector and a source of radiation may be vertically positioned to provide images at the multiple image areas. Vertical positioning of the detector may be determined by the markers or by equal height detector alignment markers on the shield. The multiple image areas may be connected by aligning stitching markers in the images, that may be on the shield. This aligning may be done by an automated computer software process that recognizes the stitching markers.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: December 2, 2014
    Assignee: Fujifilm Medical Systems U.S.A., Inc.
    Inventor: Robert A. Fabrizio