Patents Examined by Craig E. Church
  • Patent number: 7317782
    Abstract: A radiation scanning system comprises a radiation source and a radiation detector that are proximate a crane system that moves objects between the source and the detector for scanning. The source and/or detector may be supported by the crane system or may be near to the crane system. Preferably, the source and detector are supported by the crane system or they are within a profile defined by the crane system. The radiation scanning system is particularly suited to scan cargo conveyances, such as sea cargo conveyances, as they are being removed from or loaded onto a ship. Methods of examining objects are disclosed, as well.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 8, 2008
    Assignee: Varian Medical Systems Technologies, Inc.
    Inventor: Paul Bjorkholm
  • Patent number: 7127026
    Abstract: A radiological imaging apparatus of the present invention includes an X-ray source for emitting an X-ray, a ?-ray detecting section for outputting a detection signal of a ?-ray, and an X-ray detecting section for outputting a detecting signal of an X-ray. The X-ray source moves around a bed for placing an examinee. The ?-ray detecting section has a plurality of radiation detectors aligned in the longitudinal direction of the bed and placed around the bed. The X-ray detecting section is positioned in a region formed between one end and the other end of the ?-ray detecting section in the longitudinal direction of the bed. The X-ray source is also positioned in the region. Since the X-ray detecting section is placed in the region, it is possible to accurately combine a PET image and an X-ray computed tomographic image.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: October 24, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kensuke Amemiya, Yuuichirou Ueno, Hiroshi Kitaguchi, Kikuo Umegaki, Shinichi Kojima, Norihito Yanagida, Kazuma Yokoi, Takashi Okazaki
  • Patent number: 7118275
    Abstract: An X-ray emission device and a method of assembly of the device having a casing with a window and an X-ray tube place in the casing. The tube comprises an anode assembly equipped with an anode, a cathode assembly equipped with a cathode and an envelope containing the anode and the cathode. The longitudinal positioning of the X-ray tube in the casing is produced on the anode side. The angular positioning of the X-ray tube in the casing on a longitudinal axis is produced on the anode side. A bayonet on the casing fastens a rotation axis support for the anode. The cathode is fixed in an angular position predetermined in relation to the bayonet by pins.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: October 10, 2006
    Assignee: GE Medical Systems Global Technology Company LLC
    Inventors: Eric Chabin, Xavier Le Pennec
  • Patent number: 7116758
    Abstract: A Potter-Bucky device for a radiation image recording apparatus in which an image recording medium is exposed to radiation which has passed through an object in order to record a radiation image of the object on the recording medium includes a grid which is movably supported between the object and the recording medium and is reciprocated parallel to the recording medium. A counter-weight is connected to the grid and is reciprocated in synchronization with the grid but in an opposite direction. Among other benefits and features, the disclosure reduces or eliminates vibrations produced by the reciprocating grid.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: October 3, 2006
    Assignee: Analogic Corporation
    Inventor: Gilbert W. McKenna
  • Patent number: 7103139
    Abstract: In an X-ray CT device, the scan conditions of the device are set, a three-dimensional X-ray passage length model of the body being examined is generated from a scanogram image of the body, the control pattern of the tube current is automatically set on the basis of the scan conditions and the three-dimensional passage length model, and the dose which will be given will be calculated and displayed on the basis of the control pattern of the tube current, and three-dimensional CT value model data of the body generated on the basis of a standard human body. The scanogram image of the body and the control pattern of the tube current are displayed next to each other or overlap to allow an operator to edit the control pattern while viewing the body, so that a suitable tube current can be set.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: September 5, 2006
    Assignee: Hitachi Medical Corporation
    Inventors: Takayuki Nagaoka, Osamu Miyazaki
  • Patent number: 7099428
    Abstract: A high spatial resolution X-ray computed tomography (CT) system is provided. The system includes a support structure including a gantry mounted to rotate about a vertical axis of rotation. The system further includes a first assembly including an X-ray source mounted on the gantry to rotate therewith for generating a cone X-ray beam and a second assembly including a planar X-ray detector mounted on the gantry to rotate therewith. The detector is spaced from the source on the gantry for enabling a human or other animal body part to be interposed therebetween so as to be scanned by the X-ray beam to obtain a complete CT scan and generating output data representative thereof. The output data is a two-dimensional electronic representation of an area of the detector on which an X-ray beam impinges. A data processor processes the output data to obtain an image of the body part.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 29, 2006
    Assignee: The Regents of the University of Michigan
    Inventors: Neal H. Clinthorne, Predrag Sukovic
  • Patent number: 7092481
    Abstract: A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 15, 2006
    Assignee: General Electric Company
    Inventor: David M. Hoffman
  • Patent number: 7092484
    Abstract: The present invention is a method for inspecting objects. The method includes obtaining a structural model of a first object, the model providing dimensions and material properties for the first object, inspecting a second object to provide inspection data for at least two views of a structure of the second object, comparing inspection and predicted data based on the structural model of the first object and a simulation of the inspection process, reconstructing stereographic data for the second object based on the structural model of the first object and contributions of the inspection data of the second object. In another embodiment, where there is a structural model of an object, the object can be subjected to a dynamic process and the object is inspected throughout the process.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: August 15, 2006
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Terrence C. Jensen, Joseph N. Gray
  • Patent number: 7085343
    Abstract: An X-ray computed tomography apparatus of this invention includes a first data detecting system which includes a first X-ray tube and a first X-ray detector and a second data detecting system which includes a second X-ray tube and a second X-ray detector. A reconstructing unit reconstructs image data on the basis of the data detected by at least one of the first and second data detecting systems. A monitoring unit monitors the first data detecting system. In a period during which the first data detecting system is normal, data acquisition is performed by both the first and second data detecting systems. In a period during which the first data detecting system is faulty, data acquisition is performed by the second data detecting system alone.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: August 1, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiyuki Shinno, Yuji Yanagida, Shigeyuki Nakashima, Yoshiaki Yaoi, Miwa Okumura, Minoru Horinouchi, Masahiko Yamazaki, Machiko Iso, Satoru Nakanishi
  • Patent number: 7076023
    Abstract: X-ray therapy EPI artifact reduction and control of imaging is provided. Scanning of images is synchronized with the pulse rate of the x-rays. The scanning period is longer than the pulse rate period, so artifacts are generated within the resulting images. Due to the synchronization, the pulse variation artifacts are aligned across multiple images. The synchronization and resulting alignment of linear artifacts allows for gain correction as a function of lines within the image. Such gain correction reduces or removes non-linearities associated with pulse rate variation.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: July 11, 2006
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Farhad Abbasi Ghelmansarai, William F. Collins
  • Patent number: 7056015
    Abstract: A receptor positioning device for taking dental bitewing radiographs of teeth inside a patient's mouth includes a rigid, fixed structure having a collimation plate defining a substantially rectangular opening. A receptor holding member is adapted to receive a receptor, and an elongated arm is adapted to receive and couple to the collimation plate. The elongated arm extends towards and couples with a rear portion of the receptor holding member, opposite the collimation plate, such that an unobstructed path is defined between the substantially rectangular opening of the collimation plate and the receptor. A biting surface is fixedly attached to a distal end of the elongated arm and adjacent to the receptor holding member such that the receptor is positioned behind the teeth on which the radiographs are being taken while the biting surface is gripped by the teeth on the opposite side of the patient's mouth.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: June 6, 2006
    Inventor: Jennifer A. Diederich
  • Patent number: 7056016
    Abstract: An x-ray generating assembly is provided comprising an x-ray source assembly mounted to a mounting element. The assembly further includes a support assembly comprising a motor element and a gear assembly in communication with the motor element. An output shaft is in communication with the gear assembly such that the output shaft rotates in response to the motor element. The mounting element is positioned around the output shaft. An electromechanical lock is engaged to the mounting element such that the electromechanical lock rotates in concert with the mounting element. The electromechanical lock has an engaged condition and a disengaged condition. The electromechanical lock engages the mounting element when the electromechanical lock is in the engaged condition such that the mounting element rotates with the output shaft. The mounting element is free to rotate when the electromechanical lock is in the disengaged condition.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 6, 2006
    Assignee: General Electric Company
    Inventors: Jonathan C. Boomgaarden, Andrew S. Argersinger
  • Patent number: 7056020
    Abstract: Phantoms and discrete spatial and frequency methods for quantitatively measuring the alignment of radiographic imaging systems are described. One embodiment comprises phantoms for use in mechanically aligning radiographic imaging systems. These phantoms comprise: a radio-opaque material capable of holding a well-defined edge that allows quantitative image resolution measurements to be obtained thereof; wherein once the quantitative image resolution measurements are obtained, the spatial frequency response of the radiographic imaging system at a given focal plane can be calculated therefrom, thereby defining the mechanical alignment, resolution, and resolution uniformity of the radiographic imaging system. Systems and methods for mechanically aligning radiographic imaging systems, and methods for obtaining a quantitative measurement of the mechanical alignment, resolution and resolution uniformity of radiographic imaging systems, are also disclosed.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: June 6, 2006
    Assignee: GE Medical Systemes Global Technology Company, LLC
    Inventors: Rowland Frederick Saunders, Kadri Nizar Jabri
  • Patent number: 7053376
    Abstract: A radiological imaging apparatus of the present invention includes an X-ray source for emitting an X-ray, a ?-ray detecting section for outputting a detection signal of a ?-ray, and an X-ray detecting section for outputting a detecting signal of an X-ray. The X-ray source moves around a bed for placing an examinee. The ?-ray detecting section has a plurality of radiation detectors aligned in the longitudinal direction of the bed and placed around the bed. The X-ray detecting section is positioned in a region formed between one end and the other end of the ?-ray detecting section in the longitudinal direction of the bed. The X-ray source is also positioned in the region. Since the X-ray detecting section is placed in the region, it is possible to accurately combine a PET image and an X-ray computed tomographic image.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: May 30, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kensuke Amemiya, Yuuichirou Ueno, Hiroshi Kitaguchi, Kikuo Umegaki, Shinichi Kojima, Norihito Yanagida, Kazuma Yokoi, Takashi Okazaki
  • Patent number: 7050529
    Abstract: A computed tomographic (CT) imaging system for performing a CT scan includes a detector array including a plurality of detector cells and a processor operationally coupled to the detector array. The processor is configured to receive first data regarding a first x-ray spectral range from a first detector cell, receive second data regarding a second x-ray spectral range different from the first x-ray spectral range from a second detector cell different from the first detector cell, and determine spectral information from the first data and the second data.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 23, 2006
    Assignee: GE Medical Systems Global Technolgy Company, LLC
    Inventor: David M. Hoffman
  • Patent number: 7050541
    Abstract: An x-ray tube has a stationary cathode and a rotating anode in a vacuum housing. The anode is positioned on a housing-fixed axle such that it can be rotated, and is fashioned as a hollow body in the interior of which an axle-fixed ring projection is disposed, such that, at least between an inner surface of the rotating anode and the adjacent outer surface of the ring projection, a gap exists that is filled with liquid metal and forms a liquid-metal fluid bearing for the rotating anode.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 23, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventor: Herbert Bittl
  • Patent number: 7050537
    Abstract: A radiographic apparatus or system for imaging a dynamic state or process of an object such as a human body includes an indication unit for performing dynamic state guiding indication using a perceivable pattern corresponding to a dynamic state or motion to be engaged in by the patient, and an image acquisition unit for acquiring a plurality of radiographs of the human body. The resulting radiographs can be reviewed for diagnosis, and can be stored, either locally or at a remote location.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: May 23, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Tsujii
  • Patent number: 7050540
    Abstract: X-ray generation apparatus including an elongated target body and a mount from which the body projects to a tip remote from the mount. The target body includes a substance that, on being irradiated by a beam of electrons of suitable energy directed onto the target body from laterally of the elongate target body, generates a source of x-ray radiation from a volume of interaction of the electron beam with the target body. The mount provides a heat sink for the target body.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: May 23, 2006
    Assignee: XRT Limited
    Inventors: Stephen William Wilkins, Peter Robert Miller
  • Patent number: 7040807
    Abstract: An apparatus for radiographic image acquisition has a radiation source with an associated laser device for representation of a linear light marking on the examination subject to align the subject relative to the radiation source for a subsequent image acquisition. The laser of the laser device is operated pulsed with a pulse-pause ratio of 1:n, with n>1.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 9, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventor: Peter Scheuering
  • Patent number: RE39396
    Abstract: A device for inspecting a cargo container such as a motor vehicle or freight pallet, with penetrating radiation. A source of penetrating radiation is mounted on a moveable bed, thereby allowing a beam of penetrating radiation to sweep the large container. At least one detector is also mounted on the bed, either on the side of the source or on a boom, so that, as the beam is scanned across the container, the container and any contents of the container are characterized by transmitted or scattered radiation, or both.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: November 14, 2006
    Assignee: American Science and Engineering, Inc.
    Inventors: Roderick Swift, Andrew Tybinkowski