With Light Projection Patents (Class 378/206)
  • Publication number: 20090086926
    Abstract: A radiation imaging system has a radiation source having an adjustable angular orientation and an emitter that provides an alignment signal and is coupled to the radiation source. A two dimensional radiation image detection device has a receiver that records an image according to radiation emitted from the radiation source, a first sensor coupled in a fixed position relative to the receiver that detects the alignment signal from the emitter and provides a first response signal and a second sensor coupled in a fixed position relative to the receiver that detects the alignment signal from the emitter and provides a second response signal. A control logic processor is in communication with the first and second sensors for receiving the first and second response signals and further in communication with at least one indicator for indicating the alignment of the image detection device relative to the radiation source.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventors: Xiaohui Wang, David H. Foos
  • Patent number: 7490986
    Abstract: A radiation image projection apparatus includes an image acquisition unit for acquiring a radiation image obtained by capturing an image of radiation transmitted through an object and a projection unit for projecting the radiation image as visible light onto the object.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 17, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Takekoshi, Yuichi Nishii, Hideto Shiozawa
  • Patent number: 7490985
    Abstract: An arrangement device including: a photography section, which photographs a first mark and a second mark in a state in which a semiconductor integrated circuit to which the first mark is applied and a member to which the second mark is applied, which member is to be used in combination with the semiconductor integrated circuit, overlap; and a movement section, which relatively moves at least one of the semiconductor integrated circuit and the member with respect to the other thereof on the basis of positions of the first mark and the second mark which have been photographed by the photography section.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: February 17, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Brian Ormond, Tomoki Umezawa
  • Publication number: 20090041201
    Abstract: An apparatus for aligning a radiation source with an image receiver. The apparatus includes first and second light sources. The first light source is coupled to the image receiver and actuable to direct a first pattern of light toward the radiation source. The second light source is coupled to the image receiver and actuable to direct a second pattern of light toward the radiation source. The spatial relationship of the two patterns on or near the radiation source indicates a predetermined alignment position for the radiation source.
    Type: Application
    Filed: March 13, 2008
    Publication date: February 12, 2009
    Inventors: Xiaohui Wang, Michael K. Rogers
  • Patent number: 7465090
    Abstract: A medical imaging installation and a method for a medical imaging installation are disclosed for defining a specific position on the surface of an object. In at least one embodiment, the installation has a support apparatus for an object, a device for recording measured data from the object in order to produce an image of the object, a unit for displaying an image obtained from the object, and a device, arranged on the installation in a defined fashion, for projecting a light pattern onto the surface of the object. The light pattern is inserted appropriately into the displayed image of the object in order to define a specific position on the surface of the object.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: December 16, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventor: Gabriel Haras
  • Patent number: 7459689
    Abstract: A multiple point source test phantom is used for calibration of detector positioning of a nuclear medical imaging apparatus. An absolute coordinate system for the detectors is aligned to an image reconstruction space coordinate system by fitting a Gaussian surface to a peak of a center point source of said test phantom, and using displacement parameters as obtained from the fitted Gaussian surface to calculate a displacement correction parameter, which is used to move a patient bed of the imaging apparatus such that the image reconstruction space is aligned with the absolute coordinate system.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 2, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Sharon Xiaorong Wang, Joseph Fang
  • Patent number: 7457394
    Abstract: A device is provided for inspecting objects, particularly pieces of luggage, for suspicious contents using electromagnetic radiation. The device includes a housing comprised of a support and a closable opening through which an object to be inspected can be placed on a receiving element; a source for electromagnetic radiation and a designated detector array, both of which are arranged in the housing such that an inspection area is located above the receiving element; a positioning aid, which indicates the inspection area to an operator; and an evaluation unit including a computer, where the radiation intensities measured by the detector array are evaluated with respect to suspicious materials.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: November 25, 2008
    Assignee: Smiths Heimann GmbH
    Inventors: Martin Hartick, Hermann Ries
  • Patent number: 7413344
    Abstract: An object of the present invention is to provide a radiography system in which an FOV in a light field agrees with an FOV in an X-ray field irrespective of a displacement of a light source. The radiography system comprises an X-ray tube, a collimator that forms an X-ray beam to be irradiated from the X-ray tube to an object of radiography, and a light source that irradiates light, which is used for ranging, to the object of radiography via the collimator. The radiography system further comprises a memory in which the magnitude of a displacement of the light source calculated in advance is stored, and a control unit that controls the opening of the collimator on the basis of the position of the light source, which is corrected based on the magnitude of a displacement read from the memory, so that an FOV of light to be used for ranging will agree with a target value.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: August 19, 2008
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventor: Lei Qian
  • Publication number: 20080165933
    Abstract: In order to achieve a consistently good image quality, an X-ray device has an X-ray source in the form of an X-ray radiator (1) and an X-ray detector (2) with a precisely defined mutual arrangement, and a subsystem (5-7; 10-11) for detecting any deviation between the actual mutual arrangement and the precise mutual arrangement of X-ray source and X-ray detector (2). Optical detection of deviations is preferably provided.
    Type: Application
    Filed: March 6, 2006
    Publication date: July 10, 2008
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Mathias Hornig
  • Publication number: 20080144778
    Abstract: An imaging system has an inventive light source coupled to its X-ray detector to project a visible light beam onto the patient so that the patient may be aligned with an area of exposure (e.g., the area which X-Rays from the emitter will contact). In some cases, the light beam is a rectangular beam which substantially indicates the area of exposure. The imaging system also has a motion detector to detect movement of the object, the X-Ray emitter, and the X-Ray detector. With the motion detector, the imaging system is automated to automatically turn the light source on whenever the patient or the imaging system (e.g., the table) moves. Similarly, the imaging system is automated to turn off the light source when X-Raying begins.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 19, 2008
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventor: Hiten Sonani
  • Patent number: 7382866
    Abstract: With a view to providing an X-ray imaging apparatus having a projector-collimator capable of adjusting an irradiation position of a light beam easily and accurately, a first luminous flux is made a luminous flux present within an orthogonal plate orthogonal to a y-axis direction which is an orthogonal direction and a second luminous flux present within the orthogonal plane is reflected and moved within the orthogonal plane to produce a light beam. Consequently, an irradiation position of the light beam over a subject can be adjusted in an independent manner by movement ?y in the orthogonal direction with use of a first screw and movement ?x within the orthogonal plane with use of a second crew. As a result, adjustment of an X-ray irradiation field position by an operator can be effected not only easily but also with a high accuracy.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: June 3, 2008
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Yongtao Tan, Chen Zhang, Yuqing Li
  • Patent number: 7380986
    Abstract: An X-ray apparatus and a mammographic X-ray apparatus are provided. The X-ray apparatus includes an X-ray beam generated by an X-ray source and a diaphragm. At least one LED is disposed as an indicator between the X-ray source and the diaphragm. The illuminating beam of the LED is directed in an undeflected fashion onto the X-ray field. The LED may be pivotable (swivable) out of the X-ray beam. The LED is mounted on a filter array that is mounted between the X-ray source and the diaphragm.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: June 3, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Brandstätter, Martin Ramsauer
  • Patent number: 7344305
    Abstract: A method and system are providing for performing X-ray diagnostic imaging using a camera image controlled to image a field of view (FOV) that is substantially coincident and coplanar with a radiation footprint or FOV of an X-ray beam radiated towards a patient under examination. Both the X-ray beam and camera FOVs are shaped and/or limited by collimation. The method and system include acquiring a camera image with a collimated FOV to an X-ray beam FOV before X-ray imaging a patient, displaying the camera image and adjusting the collimation and patient positioning to define the X-ray beam FOV based on the displayed camera image before X-ray imaging the patient. After adjustment, the method and system include radiating the X-ray beam as collimated during the patient X-ray imaging, acquiring and processing captured X-ray image information to reconstruct an X-ray image and displaying the reconstructed X-ray image with the displayed camera image.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: March 18, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Miljan Kuzmanovic
  • Patent number: 7313223
    Abstract: A unit (11) with a length (L) is utilized in a device for indicating the position of an edge (7a) of a first area (7) which is irradiated by an x-ray radiation source (2) in relation to an edge (9a) of a second area, completely or partially coinciding with the first area, which second area is illuminated by a light source. The unit is provided with a first and second parts separated by a mark (12), which parts are intended to extend inside the second area and outside the second area respectively. The unit (11) comprises x-ray radiation-indicating elements (14, 22) that assume a first indication state in the presence of x-ray radiation (6) and a second indication state in the absence of x-ray radiation. The position indication can be determined by means of the said mark and indication states. The invention also relates to an arrangement and a method for the said position indication.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: December 25, 2007
    Assignee: Unfors Instruments AB
    Inventor: Tomas Unfors
  • Patent number: 7302037
    Abstract: A method and system of visual inspection for use with a gamma system includes a monitoring device connected within a housing proximate to a mechanical indicator of the rotating gamma system for capturing data comprising at least one of positional and operational data associated with the mechanical indicator. A control center monitors the captured data which is provided by a communication device connected between the monitoring device and the control center. Upon display of the captured data a user is able to review, monitor and maintain operation of the gamma system.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: November 27, 2007
    Inventor: Tomasz K Helenowski
  • Patent number: 7290930
    Abstract: The invention relates to a method for monitoring an x-ray apparatus. To prevent the application of a harmful x-ray dose, it is proposed in accordance with the invention to compare a distance value indicating a distance between an x-ray source and a surface of a patient with a predetermined mini-mum distance value and to generate a warning signal, if the distance value is smaller than the minimum distance value.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: November 6, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Hoheisel
  • Patent number: 7281849
    Abstract: Systems and methods for alignment in a medical imaging device are provided. An alignment system includes a source of visible light and a reflector. The source of visible light is configured to project a beam of visible light within a field of view of the medical imaging device, and the reflector is configured to direct the projected beam of visible light along a central axis of the medical imaging device.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: October 16, 2007
    Assignee: General Electric Company
    Inventors: Ratanjit Singh Sohal, Vikas Mohanrao Desai
  • Patent number: 7278787
    Abstract: An X-ray apparatus, in particular a dental X-ray apparatus, includes an X-ray radiation source for generating X-ray radiation to be directed at an object to be investigated, for example, a patient's tooth or jaw. The apparatus has an optical device through which an aiming device, for example, an additional visible pilot radiation generated by a further light source, is directed substantially parallel to the X-ray radiation at the object to be investigated to facilitate the positioning of the X-ray head.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: October 9, 2007
    Assignee: Kaltenbach + Voigt GmbH
    Inventors: Alexander Hack, Uwe Zeller, Klaus Weber, Martin Rickert
  • Patent number: 7263162
    Abstract: Sample mounts (10) for mounting microcrystals of biological macromolecules for X-ray crystallography are prepared by using patterned thin polyimide films (12) that have curvature imparted thereto, for example, by being attached to a curved outer surface of a small metal rod (16). The patterned film (12) preferably includes a tapered tip end (24) for holding a crystal. Preferably, a small sample aperture is disposed in the film for reception of the crystal. A second, larger aperture can also be provided that is connected to the sample aperture by a drainage channel, allowing removal of excess liquid and easier manipulation in viscous solutions. The curvature imparted to the film (12) increases the film's rigidity and allows a convenient scoop-like action for retrieving crystals. The polyimide contributes minimally to background and absorption, and can be treated to obtain desired hydrophobicity or hydrophilicity.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: August 28, 2007
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Robert E. Thorne, Zachary Stum, Kevin O'Neill, Jan Kmetko
  • Patent number: 7249854
    Abstract: A projection system for projecting a shape onto a scene (e.g., the surface of an object, the body of a patient, or the like) so that the shape appears to be projected via a light beam emanating from a desired source location includes two or more projection assemblies for projecting planes of light which intersect the scene to form light stripes on the scene. The intersection of the light stripes defines a point of light projected onto the scene so that the point of light appears to emanate from the source location. The first and second projection assemblies rotate about first and second axes which extend through the source location for controlling the position of the point of light on the scene.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: July 31, 2007
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Ali Bani-Hashemi
  • Patent number: 7247873
    Abstract: A quality control system for an irradiation apparatus includes a radiation image reading system. The radiation image reading system reads out a radiation image from a stimulable phosphor panel which is disposed in a predetermined position to receive irradiation of position check radiation from an irradiation system and irradiation of uniform radiation from the irradiation system to an area larger than the area exposed to the position check radiation and to receive irradiation of position check light in a visible region from a position check light irradiation system after receiving the irradiation of the uniform radiation and to form a radiation image. A relative position obtaining system obtains the relation between the irradiating position of the position check radiation and the irradiating position of the position check light on the basis of the radiation image read by the radiation image reading system.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: July 24, 2007
    Assignee: Fujifilm Corporation
    Inventor: Satoshi Arakawa
  • Patent number: 7198404
    Abstract: An apparatus, method and program storage device are provided for co-registration of multi-modal images in a three-dimensional environment, where the apparatus includes a source of excitation light, an electromagnetic-ray source disposed relative to the source of excitation light, an electromagnetic-ray transparent mirror having a first surface disposed towards the excitation light and a second surface disposed towards the electromagnetic-ray source, a target location disposed towards the first surface of the electromagnetic-ray transparent mirror for locating a target and receiving the excitation light and the electromagnetic rays, an electromagnetic-ray detector disposed on an opposite side of the target location relative to the electromagnetic-ray transparent mirror for detecting electromagnetic-rays transmitted through the target, a second electromagnetic-ray transparent mirror having a light-reflective surface disposed towards the target location, and a light detector disposed towards the light-reflective
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: April 3, 2007
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Nassir Navab, James P. Williams
  • Patent number: 7147371
    Abstract: Laser guides for an X-ray device are disclosed in which a pair of laser projecting means are rotatably affixed to any X-ray device, either portable or stationary, such that the beams from the projecting means project toward the X-ray receptor and inward toward a line between the receptor and the X-ray device, and the laser beams cross at a particular location such that when the X-ray device is moved closer to or further from the X-ray receptor the laser beams cross when the X-ray device is at the optimum distance from the X-ray image receptor and the X-ray beam is centered upon the X-ray image receptor.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 12, 2006
    Inventor: Joseph Hecker
  • Patent number: 7147370
    Abstract: A light irradiator that includes a light source, a light source supporting device which supports the light source replaceably, a first support device which supports the light source supporting device in such a manner that the position of the light source supporting device can be adjusted in a first direction out of three directions perpendicular to one another, a second support device which supports the first support device in such a manner that the position of the first support device can be adjusted in a second direction out of the three directions, and a third support device which can be mounted removably in a predetermined positional relation to a member to which it is to be mounted, the third support device supporting the second support device in such a manner that the position of the second support device can be adjusted in a third direction out of the three directions.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: December 12, 2006
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Xu Xiaodong, Tan Yongtao
  • Patent number: 7114849
    Abstract: Radiographic imaging device with a radiographic source and a digital radiographic detector, which are movable in their positioning in relation to a patient, and with a control device for movement control and for creating a radiographic image which can be output, with an optical marking device (14) provided at the radiographic source (2) which can be used to mark the height (h1–h2) of the area to be recorded on the patient (P) and the control device (10) being embodied to automatically determine the required height and number of radiographic images to be recorded, where necessary to be joined together for output of an overall image depicting the entire patient area and the recording positions of the radiographic source (2) and of the radiographic detector (3) in relation to the defined height of the patient area.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: October 3, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Franz Atzinger, Peter Scheuering
  • Patent number: 7108423
    Abstract: A multileaf collimator (1) of an X-ray diagnostic device has a housing (2) that is provided for the passage of an X-ray beam (S), collimator leaves (3) arranged in said housing for limiting the X-ray beam (S), and a light source (5) and a mirror (4) for identifying the X-ray beam (S) by visible light. A plurality of collimator leaves (3) at a time are arranged in front of the mirror (4) and behind the mirror (4) in the direction of radiation (R) of the X-ray beam (S), and are rigidly coupled together, the individual collimator leaves (3) each being arranged in collimation planes (E1–E14) which are orientated at least approximately normal to the direction of radiation (R) of the X-ray beam (S).
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: September 19, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Schmitt
  • Patent number: 7104689
    Abstract: The invention concerns a device 5 for aiming an object 1 in an X-ray imaging apparatus 3 provided with a radiographic imaging detector 4, a radiation source 13, and transfer means for moving e.g. the radiation source into different points along a predetermined path P. Said device comprises at least one laser 6 emitting visible light, and e.g. at least two light guides having first ends and second ends, said first ends connected to said laser for receiving said visible light. Each of said second ends 8a, 8b, 8c provides a light beam, and these light beams 7a, 7b, 7c are directed towards said imaging detector with an angle of convergence K. The light beams are adjusted to intersect in a predetermined focus FL point, which is visible and indicates the proper position of the target 2 inside the object.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: September 12, 2006
    Assignee: Instrumentarium Corporation
    Inventor: Pekka Ihalainen
  • Patent number: 7077568
    Abstract: An x-ray apparatus has an exposure unit with an x-ray radiator and a diaphragm in front thereof, and a camera system with which an adjustment image is acquired of a subject positioned in front of an x-ray exposure plane. Using the adjustment image, a region to be examined of the subject is identified and an area of the x-ray exposure plane is selected such that the projection of the region to be examined of the subject is substantially inscribed in the projection of the areal section. The diaphragm is adjusted such that the x-ray radiation generated by the x-ray radiator is incident on the x-ray exposure plane only within the selected areal section.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: July 18, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventor: Joachim Hornegger
  • Patent number: 7070327
    Abstract: A system includes substantial focus of radiation on a focal area, the focused radiation following a radiation path from a lens to the focal area, and projection of light on a surface so as to substantially indicate an intersection of the radiation path with the surface. In some aspects, the light projected on the surface substantially indicates a distance between the surface and the focal area.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: July 4, 2006
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: William F. Collins
  • Patent number: 7050544
    Abstract: An X-ray diagnostic device has an X-ray tube and a diaphragm housing in which diaphragm plates for limiting an X-ray field are contained, as are a lamp and a mirror. The lamp and mirror are configured so that, when the lamp is on, the light therefrom is reflected by the mirror so that the reflected ray field coincides with the hypothetical X-ray field. At least one filter for filtering the X-rays is disposed in the diaphragm housing. The mirror and the filter or filters are attached to a single disk that rotates around an axis such that either the mirror or a filter is within the hypothetical X-ray field.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: May 23, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Karlsson, Rob Olthoff
  • 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: 7023954
    Abstract: A method for X-ray analysis of a sample includes aligning an optical radiation source with an X-ray excitation source, so that a spot on the sample that is irradiated by an X-ray beam generated by the X-ray excitation source is illuminated with optical radiation generated by the optical radiation source. Optical radiation that is reflected from the sample is used to generate a first signal, which is indicative of an alignment of the spot on the sample. The X-ray beam is aligned, responsively to the first signal, so that the spot coincides with a target area of the sample. X-ray photons received from the spot on the sample, after aligning the X-ray beam, are used in generating a second signal that is indicative of a characteristic of the target area.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: April 4, 2006
    Assignee: Jordan Valley Applied Radiation Ltd.
    Inventors: Tzachi Rafaeli, Isaac Mazor
  • Patent number: 7020245
    Abstract: A collimating device for controlling a radiation field of an X-ray radiated from an X-ray radiator. The device includes a plurality of first collimating leaves, a plurality of second collimating leaves, a beam generator, a detector, a memory, and a controller. The plurality of second collimating leaves oppose the first collimating leaves. The beam generator is configured to generate a beam. The beam emanates between the first collimating leaves and the second collimating leaves. The detector is configured to detect the beam. The memory is configured to store position information of each leaf of the first and second collimating leaves when the each leaf is determined to intersect the beam based on the detection. The controller is configured to position the each leaf based on the position information so as to control the radiation field.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: March 28, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Tadashi Noguchi
  • Patent number: 7014362
    Abstract: A device for detecting an orientation and spacing of an X-ray source relative to an X-ray receiver comprises a projector which is disposed at a predetermined orientation and a predetermined spacing relative to the X-ray source, and is configured to project a predetermined pattern of electromagnetic waves in a direction of the X-ray receiver. A detector is configured to detect the predetermined pattern projected by the projector. A positioning detection device, connected to the detector and configured to receive an output signal from the detector, generates a positioning signal as a function the output signal. The positioning signal comprises information about the orientation and spacing of the X-ray source relative to the X-ray receiver.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 21, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Franz Beimier, Franz Dirauf, Karlheinz Kaul, Donal Medlar, Claus-Günter Schliermann, Martin Vierbücher
  • Patent number: 6935778
    Abstract: Methods and devices for aligning an x-ray optic with a source of x-rays and methods and devices for determining a focusing characteristic of an x-ray optic are provided. The methods and devices simplify the process of aligning an x-ray optic device (for example, a polycapillary x-ray optic) to an x-ray source or for measuring a focusing characteristic, for example, the focal length or beam shape, of an x-ray optic. In one aspect, the device includes a housing having a first aperture adapted for receiving an x-ray optic and a surface having an x-ray flourescent material from which visual fluorescence occurs when impinged by x-rays. The size and shape of fluorescence from the surface may be varied by moving the surface to determine, for example, the focal length of the x-ray optic.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: August 30, 2005
    Assignee: X-Ray Optical Systems Incorporated
    Inventors: Thomas J. Bievenue, John H. Burdett, Jr.
  • Patent number: 6928141
    Abstract: A readily relocatable X-ray imaging system for inspecting the contents of vehicles and containers, and a method for using the same. In a preferred embodiment, the system is relatively small in size, and is used for inspecting commercial vehicles, cargo containers, and other large objects. The X-ray imaging, system comprises a substantially arch-shaped collapsible frame having an X-ray source and detectors disposed thereon. The frame is preferably collapsible via a plurality of hinges disposed thereon. A deployment means may be attached to the frame for deploying the frame into an X-ray imaging position, and for collapsing the frame into a transport position. The collapsible X-ray frame may remain stationary during X-ray imaging while a vehicle or container is driven through or towed through an inspection area defined under the frame. Alternatively, the collapsible X-ray frame may be movable relative to a stationary vehicle or container during X-ray imaging.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: August 9, 2005
    Assignee: Rapiscan, Inc.
    Inventors: James Carver, Andreas F. Kotowski
  • Patent number: 6917666
    Abstract: In an imaging system including a gantry having a patient bore, and a patient table having a cradle, a method of aligning the cradle with a scan plane in the patient bore is disclosed. The method comprises positioning a laser device at least partially within the patient bore, the laser device producing an alignment laser beam projecting along a center axis of the patient bore normal to the scan plane. The method further comprises aligning the cradle of the patient table such that when the cradle is translated into the scan plane in the patient bore, the alignment laser beam intersects a positioning target on the cradle.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: July 12, 2005
    Assignee: General Electric Company
    Inventor: Scott David Wollenweber
  • Patent number: 6911988
    Abstract: From a taken image such as a radiation image, plural characteristic amounts (two-dimensional characteristic amounts etc.) are extracted to judge the portion (position) of the object on the taken image, and the result of judgment is displayed. On the image displaying the result of judgment of the object position, the operator confirms whether the object position is correctly judged, and, if the result is erroneous, changes the result of judgment by changing means. Based on the result of judgment changed by the operator or without such change, corresponding image processing parameters are acquired from the parameter table prepared in advance. Such image processing parameters are used for executing the image processing on the taken image.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: June 28, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Tsujii
  • Patent number: 6869218
    Abstract: This invention relates to a self diagnostic apparatus for a radiographic imaging system. The system includes a radiographic source and a camera, and the apparatus comprises: a scintillator positioned between the optical pathway of the radiographic source and the camera, and made of a material which fluoresces when struck by x-rays, including one in the group of terbium doped gadollineum oxysulfide or thallium doped cesium iodide; a resolution target located at the periphery of the scintillator and made of a material that passes at least shortwave ultraviolet light; an ultraviolet source positioned in line of sight of the scintillator and target; and, a control system for capturing a self-diagnostic reference image by activating the ultraviolet source, and activating the camera to take an image created by the visible light emitted by the scintillator material when illuminated by the UV light.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 22, 2005
    Assignee: Imaging Dynamics Company Ltd.
    Inventor: Robin Winsor
  • Patent number: 6857778
    Abstract: A surgical scanning system includes a scanner supported on a carrier movable relative to an operating room table. The carrier engages a guide that is collinear with the long axis of an operating room table. The relative movement between an operating room table and a scanner along a guide decreases the likelihood of collision therebetween. The ability to collect a scan of a patient while on an operating room table increases the likelihood of a successful surgical outcome.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: February 22, 2005
    Inventors: Inki Mun, Allen B. Kantrowitz
  • Patent number: 6855152
    Abstract: A device to be used in combination with a surgical navigation system for defining the position of a straight line determined by an operating surgeon within a three-dimensional coordinate system in an operating theater. The devices includes a body (1) with a surface (2) and at least three markers (3) which emit waves (19) and the position of which can be determined within a three-dimensional coordinate system by a position detector belonging to the surgical navigation system. A laser (4) mounted on the body (1) emits a laser beam (5), directed away from the body (1), which has a geometrical central beam (6) and a wavelength in the visible range. The laser beam (5) is emitted in a geometrically defined position relative to the markers (3) so that the position of the central beam (6) relative to the three-dimensional coordinate system can be calculated from the previously measured positions of the markers (3) by a computer, which is also part of the surgical navigation system.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: February 15, 2005
    Assignee: Synthes AG Chur
    Inventors: Norbert Suhm, Peter Messmer, Pietro Regazzoni, Markus Hehli, Paul Muller
  • Publication number: 20040258211
    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: Application
    Filed: April 29, 2004
    Publication date: December 23, 2004
    Inventor: Peter Scheuering
  • Patent number: 6817762
    Abstract: A fluoroscopy intervention method to obtain an image of an object (11) together with radiopaque intervention means (30), the method using a rotating cone-beam X-ray source (8,9) and a corresponding two-dimensional X-ray detector (6) with the object (11) and the intervention means (30) positioned between the X-ray source (8) and the X-ray detector (6). Due to a cone-beam acquisition and a multi-slice reconstruction (9′) the intervention means (30) can have a substantial angulation with respect to the image slices (9′), providing the operator's hand (4) being outside the primary X-ray beam (9). This reduces the X-ray dose the operator. By providing additional lighting means (60), delineating the primary X-ray source at its periphery, the operator is supplied with an information about the spatial position of the X-ray radiation. The lighting means (60) can be further used to position an X-ray shield (65) of a surface of the patient to reduce the X-ray dose due to scattered radiation.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 16, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Roland Proksa
  • Patent number: 6816568
    Abstract: X-ray projection-exposure apparatus are disclosed that achieve a higher accuracy of pattern overlay than conventionally. An embodiment of such an apparatus includes an X-ray source, an illumination-optical system for irradiating an X-ray beam from the X-ray source onto a mask defining a pattern, a mask stage for holding the mask, a projection-optical system for directing the patterned beam from the mask to project an image of the pattern onto a resist-coated wafer, a wafer stage for holding the wafer, and a mark-position-detection system for detecting the position of a mark formed on the wafer. The center of an exposure-image field of the projection-optical system is located at a position displaced from the center axis of the projection-optical system, and the center axis of the mark-position-detection system is located laterally adjacent the exposure-image field with respect to the center axis of the projection-optical system.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: November 9, 2004
    Assignee: Nikon Corporation
    Inventor: Tetsuya Oshino
  • Patent number: 6783275
    Abstract: A system for determining congruence of a light field and a radiation field includes acquisition of first electronic image data representing a phantom as illuminated by light emitted by a light emitter, acquisition of second electronic image data representing the phantom as irradiated by treatment radiation emitted by the treatment radiation emitter, and determination of congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on the first electronic image data and the second electronic image data.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: August 31, 2004
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Farhad Abbasi Ghelmansarai
  • Publication number: 20040165701
    Abstract: An X-ray localizer light system comprises: a long life X-ray localizer light source; an optical concentrator, the light source being situated at a first focal spot, the optical concentrator being configured for concentrating X-ray localizer light from the light source to a second focal spot; and an opaque shield having an aperture therein situated proximate to the second focal spot and being of such a geometrical shape so as to maximize light throughput while meeting light field edge contrast requirements. In another light system, the optical concentrator comprises a reflector comprising a quasi-ellipsoidal portion within which the light source is situated, a cylindrical portion situated between the quasi-ellipsoidal portion and the shield for reflecting stray light, a back reflector portion situated proximate to the shield, and a centrally-mounted portion situated between the aperture and the light source for directing back-reflected light in the direction of the aperture.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Inventors: Ljubisa Dragoljub Stevanovic, Eugene George Olczak, Frank Jacob John Mueller, Dietmar Karl Sundermann
  • Patent number: 6779920
    Abstract: An X-ray localizer light system comprises: a long life X-ray localizer light source; an optical concentrator, the light source being situated at a first focal spot, the optical concentrator being configured for concentrating X-ray localizer light from the light source to a second focal spot; and an opaque shield having an aperture therein situated proximate to the second focal spot and being of such a geometrical shape so as to maximize light throughput while meeting light field edge contrast requirements. In another light system, the optical concentrator comprises a reflector comprising a quasi-ellipsoidal portion within which the light source is situated, a cylindrical portion situated between the quasi-ellipsoidal portion and the shield for reflecting stray light, a back reflector portion situated proximate to the shield, and a centrally-mounted portion situated between the aperture and the light source for directing back-reflected light in the direction of the aperture.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 24, 2004
    Assignee: General Electric Company
    Inventors: Ljubisa Dragoljub Stevanovic, Eugene George Olczak, Frank Jacob John Mueller, Dietmar Karl Sundermann
  • Publication number: 20040141590
    Abstract: The invention concerns a device 5 for aiming an object 1 in an X-ray imaging apparatus 3 provided with a radiographic imaging detector 4, a radiation source 13, and transfer means for moving e.g. the radiation source into different points along a predetermined path P. Said device comprises at least one laser 6 emitting visible light, and e.g. at least two light guides having first ends and second ends, said first ends connected to said laser for receiving said visible light. Each of said second ends 8a, 8b, 8c provides a light beam, and these light beams 7a, 7b, 7c are directed towards said imaging detector with an angle of convergence K. The light beams are adjusted to intersect in a predetermined focus FL point, which is visible and indicates the proper position of the target 2 inside the object.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 22, 2004
    Inventor: Pekka Ihalainen
  • Patent number: 6760402
    Abstract: A system includes acquisition of first electronic image data representing a phantom located at a first position and irradiated by a first radiation field emitted by a radiation emitter, acquisition of second electronic image data representing the phantom located at a second position based at least on a first light field emitted by a light emitter and irradiated by a second radiation field emitted by the radiation emitter, generation of third electronic image data by correcting the second electronic image data based at least on the first electronic image data, and determination of a deviation between the first light field and the second radiation field based at least on the third electronic image data.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: July 6, 2004
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Farhad A. Ghelmansarai
  • Publication number: 20040120467
    Abstract: In an imaging system including a gantry having a patient bore, and a patient table having a cradle, a method of aligning the cradle with a scan plane in the patient bore is disclosed. The method comprises positioning a laser device at least partially within the patient bore, the laser device producing an alignment laser beam projecting along a center axis of the patient bore normal to the scan plane. The method further comprises aligning the cradle of the patient table such that when the cradle is translated into the scan plane in the patient bore, the alignment laser beam intersects a positioning target on the cradle.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventor: Scott David Wollenweber