For Plural Exposures On Single Film Or Plate Patents (Class 378/175)
  • Patent number: 11226422
    Abstract: An x-ray detector includes a sensor slice for directly converting x-ray radiation and a downstream read-out chip. Further, in at least one embodiment, a first amplifier stage is interconnected between the sensor slice and read-out chip.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 18, 2022
    Inventors: Michael Hosemann, Thorsten Ergler, Jan Wrege
  • Patent number: 9427869
    Abstract: An arrangement for motorized assistance in movement of manually movable components of medical apparatuses is provided. The arrangement includes at least one torque sensor that is arranged in a drivetrain of a movable component of a medical apparatus. The at least one torque sensor detects the moments occurring in the drivetrain in a stationary state and in motion. Using an evaluation unit, the torque detected by the at least one torque sensor may be compared against a predefinable first threshold value. The first threshold value is predefined according to a possible position of the movable component. The arrangement includes a drive unit, by which the drive of the drivetrain may be provided with motorized assistance when the first threshold value is exceeded.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: August 30, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Bier, Harald Mulzer, Wolfgang Neuber, Matthias Schirbl
  • Patent number: 7825383
    Abstract: A mobile detector system for use in the detection of radiation photons. The detector system includes an exterior casing, having an internal area. The internal area has an interior periphery and an exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 2, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: A Hans Vija, James T. Chapman, Peggy Hawman, Ansgar Graw, John Thomas Pawlak, Guenter Hahn
  • Patent number: 7252434
    Abstract: A phantom for rotational radiation therapy machines allows beam fluence and energy to be measured at a variety of beam angles without intervening adjustment of the phantom. The phantom in the preferred embodiment provides two half cylinders directed along the axis of rotation of the machine abutting about a common center.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: August 7, 2007
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Hazim Ahmed Jaradat
  • Publication number: 20030147503
    Abstract: A barrier envelope for reusable photo-stimulable phosphor imaging plates, particularly for digital dental imaging comprised of a plastic transparent film and a plastic opaque film sealed to each other about three sides thereof defining a chamber for an imaging plate and wherein a free side of each film is formed with a flap and one flap is coated with an adhesive medium protected by a peel strip and wherein a “Y” shaped notch is provided on a side of the barrier envelope adjacent to the free side of each film the barrier envelope to facilitate tearing open of the barrier envelope in a removal procedure and transport of an exposed imaging plate to an optical scanning assembly.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 7, 2003
    Inventors: Edgar Alzner, Tom Lloyd
  • Publication number: 20030021382
    Abstract: A method is provided for fabricating in a thermal evaporation system a polycrystalline film capable of directly detecting radiation. Source material is placed in a container, and the container is evacuated to create vacuum within the container. The source material is heated to evaporate the source material for depositing on a substrate. The polycrystalline film is used in as deposited form to detect the radiation.
    Type: Application
    Filed: May 30, 2002
    Publication date: January 30, 2003
    Inventors: Jan S. Iwanczyk, Bradley E. Patt
  • Patent number: 6330302
    Abstract: A method of and a device for forming an image of an irradiated object in which images are formed with different exposure levels and the differently exposed images are combined so as to form a single image. The device includes a source and an imaging device which is connected to the source in order to form the image, the imaging device being arranged to form images with different exposure levels and being provided with an image processor in which the differently exposed images are combined so as to form the single image. The device produces images of a quality which is comparable to that of images acquired by means of a device having a much larger dynamic range.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 11, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Johannes H. M. Joosten
  • Patent number: 5815549
    Abstract: Catapult raster drawer for an X-ray system has an insertion carriage on which two clamp jaws are arranged opposite one another, and which are biased so as to be resiliently displaceable relative to one another to hold the insertion side and the opposite side of a cassette in clamping fashion. Stop faces for two neighboring cassette sides are inclined at an angle relative to the insertion direction at at least one clamp side.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: September 29, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Schmitt
  • Patent number: 5764724
    Abstract: A method of X-ray photography or a method of some other type of radiation sensoring, such as electronic image storage, employs the use of a receptor unit (2) which can be swung outwards and upwards from an initial position in or beneath a patient support table (1) about alternative pivot centers (11, 12) disposed in the region of respective side edges of the table to alternative positions for operating with a horizontal beam path. The receptor unit can be swung out about a vertical axis from these positions in which it is parallel with the longitudinal direction of the table to a position in which it is parallel with the longitudinal direction of the table to a position in which the unit is perpendicular to the longitudinal axis of the table, to enable pictures to be taken of a patient seated in a wheelchair, for instance. The invention also relates to a patient support table (1) provided with a receptor unit (2) of this kind.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: June 9, 1998
    Assignee: AO Medical Products AB
    Inventor: Carl-Eric Ohlson
  • Patent number: 5671266
    Abstract: An X-ray examination apparatus (1), includes a patient table (2) and an X-ray spotfilm device (4) which is reciprocatable in at least two spatial directions relative to the patient table (2), as well as sensors (8a, 8b, 8c, 8d) which are integrated in an operating grip (10) of the X-ray spotfilm device (4) and which serve to activate at least one servomotor (5,7) for the X-ray spotfilm device. In order to make a single operating grip (10) suffice for sliding the X-ray spotfilm device in at least four feasible of movement, the sensors are arranged in such a manner that when the operating grip is exposed to a force in an arbitrary one of the at least four feasible directions of movement, each time a different group (8a, 8b; 8c, 8d; 8a, 8c; 8b, 8d) of sensors (8a, 8b, 8c, 8d) is activated.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: September 23, 1997
    Assignee: U.S. Philips Corporation
    Inventor: Claus Linhart
  • Patent number: 5488951
    Abstract: The extracorporeal treatment apparatus has an electroacoustic transducer for producing focused sound waves and a patient support which can be moved with respect to the transducer for the purpose of positioning a patient. The transducer is arranged pivotably about its focus with respect to the patient support. The treatment apparatus is provided to connect an external X-ray location device essentially comprising an X-ray source, an X-ray image-receiver and a support frame connecting these components. Mechanical coupling between the X-ray location device and the transducer of the treatment apparatus takes place such that the X-ray location devices may follow the pivoting movements of the transducer.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: February 6, 1996
    Assignee: Richard Wolf GmbH
    Inventors: Edgar Bauer, Werner Krauss, Dietmar Stettner
  • Patent number: 5465285
    Abstract: An x-ray examination apparatus has an x-ray radiator mounted on a radiator carrier, with an x-ray film cassette loading and positioning device arranged relative to the radiator carrier so that an x-ray film cassette can be loaded into the device at a position remote from the x-ray radiator, and can be conveyed by the device, after loading, to an exposure position disposed beneath the x-ray radiator.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 7, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Arthur Gall, Heinz Meier, Wilko Kuphal, Georg Vogel
  • Patent number: 5388581
    Abstract: The therapy apparatus described for treating concretions and tissue in the body of a patient by means of sound waves comprises a sound wave generator and an available X-ray device for locating an object for therapy, wherein the therapy apparatus has a spot film device. The spot film device is arranged within the axial passage of an X-ray cone for the available X-ray device attached to the sound wave generator and with its central longitudinal axis aligned with the focus thereof to be able to precisely adjust and fix a known X-ray device available to the therapy apparatus relative to the therapy apparatus quickly and safely.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: February 14, 1995
    Assignee: Richard Wolf GmbH
    Inventors: Edgar Bauer, Werner Krauss, Michael Meyer, Joachim Fladl
  • Patent number: 5202911
    Abstract: A radiographic film packet is adapted to be placed in a patient's mouth for exposing a sheet of dental film to x-rays generated by an x-ray tube. The packet comprises: a light-proof envelope having a first side and second side defining a pocket for receiving the film sheet; a sheet of lead disposed within the pocket adjacent the second side; a sheet of film disposed within the pocket between the lead sheet and the first side; an indicator affixed to the first side of the envelope, the indicator expressly designated the edge of the film packet appointed to be uppermost in the mouth during radiographic exposure; and a marker comprising a perforation in the periphery of the film sheet.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: April 13, 1993
    Inventor: Carl E. Fabian
  • Patent number: 5107531
    Abstract: The present invention is especially suited for tomographic X-ray studies wherein dozens of exposures are required. A film cassette spacer having selected dimensions and having selected markings thereon is placed adjacent to the film cassette on a mechanically centering bucky tray in an X-ray machine. By use of the collimating means in the X-ray head, the number of exposures on the film can be maximized but still maintaining quality exposures for reading.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: April 21, 1992
    Inventor: Robert J. Elias
  • Patent number: 5093852
    Abstract: A medical panoramic radiographing device comprises in combination a mode selector which is used to select the panoramic radiographing mode, jaw joint radiographing mode and/or otolaryngological region radiographing mode, an X-ray irradiation timing determination means which is used to determine the X-ray irradiation timing appropriate to the rotation positon of a rotary arm in the sselected radiographing mode, and an X-ray film movement pattern determinator which is used to determine movement patterns regarding the movement timing, speed, etc. of an X-ray film depending on the selected radiographing mode. With this device, the X-ray irradiation timing values or the X-ray film movement timing values suited for various radiographing modes are set automatically to ensure systematic selection of various radiographing modes.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: March 3, 1992
    Assignee: Kabushiki Kaisha Morita Seisakusho
    Inventors: Kazuo Nishikawa, Kozo Nakano, Keisuke Mori, Takahiro Yoshimura
  • Patent number: 5033070
    Abstract: A panoramic method for the radiography of the dental arch and jaws, in which method by means of movable radiographing and/or imaged elements, several subsequent exposure sweep sequences are performed so that the moving elements are transferred to a new position betwen the subsequent exposure sequences. In order to achieve a perfectly jointed X-ray picture, the movement of the moving elements is started before the switch-on instant of the X-ray beam in the latter exposure sequence and the starting positions of said elements is selected so as to obtain desired positions and velocities for the elements at the switch-on instant of the X-ray beam. The coincidence of the X-ray beam orientation at the start of the latter exposure sequence with the X-ray beam orientation at the end of the preceding sequence is characterizing to an embodiment of the invention.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: July 16, 1991
    Assignee: Orion-Yhtyma Oy
    Inventors: Heikki K. J. Kanerva, Erkki H. Tammisalo, Pasi T. Mustalahti, Olli J. Ojala
  • Patent number: 4978599
    Abstract: Combination of photosensitive elements for use in radiography consisting of a pair of radiographic fluorescent screens and a double-side coated silver halide radiographic element. Each screen is arranged adjacent to each silver halide layer and each screen is capable of imagewise emitting radiation to which the adjacent silver halide layer is sensitive when imagewise exposed to X radiation. The combination is characterized in that one fluorescent screen emits a first radiation in a first wavelength region of the electromagnetic spectrum and the other fluorescent screen emits a second radiation in a second wavelength region of the electromagnetic spectrum, and each silver halide layer is substantially insensitive to the radiation emitted by the opposite screen.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: December 18, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Sergio Pesce
  • Patent number: 4979201
    Abstract: An X-ray imaging system for obtaining a photographic image of the X-ray transmissivity of a body is disclosed. A source of X-rays is directable at the body, and an X-ray imaging subsystem is provided for receiving a pattern of X-rays transmitted through the body, including, in combination: a first X-ray-sensitive screen for converting the pattern of X-rays to a first pattern of light; a light-sensitive film adjacent the first X-ray sensitive screen for receiving the first pattern of light; a second X-ray sensitive screen for also converting the pattern of X-rays to the first pattern of light; an array of light detecting devices positioned to receive the first pattern of light from the second X-ray sensitive screen; means for storing electronic representations of the outputs of the array of light detecting devices; and light generating means responsive to the stored electronic representations for generating a second pattern of light which is directed at and received by the light-sensitive film.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: December 18, 1990
    Assignee: Innovative Imaging Sciences, Inc.
    Inventor: Robert A. Kruger
  • Patent number: 4957691
    Abstract: An apparatus for inspecting the quality of both ends of nuclear fuel rods includes a housing with longitudinally separated slots for receiving X-rays downwardly therethrough to define first and second operating positions so that the forward ends of nuclear fuel rods can be aligned below the first operating position and the rear ends of nuclear fuel rods can be aligned below the second operating position. An endless conveyor belt system, having at least three longitudinally spaced apart cleats mounted thereon to define first and second film cartridge receptacles, is adapted to advance X-ray film cartridges longitudinally through the housing. A table is included for selectively lifting the film cartridges from the belt system to maintain the film cartridges stationary while the conveyor belt system is advanced.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: September 18, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Raymond W. Brashier, Edward D. Pfau
  • Patent number: 4939764
    Abstract: Spot film apparatus which includes a menu-driven microprocessor for producing control signals to position a film cassette as required to carry out operations in a manner shown on a display. The spot film apparatus includes an improved carriage assembly which comprises a pair of opposing holding arms which conform with the film cassette. The opposing holding arms are biased towards each other with a helical spring. Loading of a cassette into the arms is accomplished by moving one arm with a continuous chain drive which supports a pawl-like member projecting therefrom, while maintaining the position of the second arm.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: July 3, 1990
    Assignee: Fischer Imaging Corporation
    Inventor: Mark A. Markos
  • Patent number: 4829182
    Abstract: Disclosed is an X-ray image-processing apparatus which is used, for example for diagnosis of a blood vessel.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: May 9, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hiroshi Kageyama
  • Patent number: 4679217
    Abstract: A structure for use in determining the amount of radiation, e.g., X-ray radiation, received at one or more selected regions of an object, which structure includes a housing having front and rear covers and an image producing component, e.g., an X-ray film and one or more scintillating screens associated therewith positioned within the housing in alignment with such one or more regions. One or more detector arrays are fixedly positioned with respect to the housing in alignment with the image producing component and the one or more detector arrays respond to the one or more images produced to provide one or more output signals the values of which can be used to determine the amount of radiation received by the selected regions of the object.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: July 7, 1987
    Assignee: Fairchild Medical Systems, Inc.
    Inventor: Richard A. Fairchild
  • Patent number: 4539696
    Abstract: A target device for an X-ray examination installation has a cassette carrier which permits loading of an X-ray film cassette therein from the left or the right, the cassette carrier is movable from a ready position at a right of the installation through at least one exposure position and to a left side loading position. The cassette carriage has two clamping jaws disposed parallel to each other in a regulating plane, the jaws being two-dimensionally displaceable relative to each other in the regulating plane. The carriage further has a detent for fixing the position of the X-ray film cassette in the longitudinal direction of the clamping jaws. The clamping jaws are urged against each other in the right side loading position by a bias spring, and are urged apart in the left side loading position. A clamping slide having a projection extending into the regulating plane of the device between the clamping jaws is moveable within the cassette carriage in the longitudinal direction of the clamping jaws.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: September 3, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christian Walling, Helmut Schott
  • Patent number: 4476569
    Abstract: In a spot film device, a cassette assembly for a film cassette is mounted for reciprocating in a tunnel between an X-ray exposure position and a position in which the cassette is automatically unloaded or loaded with film. Field defining masks are also mounted for translating selectively with the carriage. The masks are formed of the synthetic materials having minimal X-ray absorption and high rigidity, without an aperture, to define a sharp X-ray field.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: October 9, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Yoshimasa Ogo
  • Patent number: 4380819
    Abstract: A masking apparatus and palpitator cone drive system for an X-ray spotfilming device. The masking apparatus comprises first and second pairs of shutter-like members mounted for reciprocating movement in two mutually orthogonal directions. Each mask member of the second pair includes first and second relatively moveable elements that operate in a telescope-like manner. A drive system including a reversible motor and a feedback potentiometer actuates the elements at first and second speeds so that the elements reach their retracted and extended positions simultaneously. The cone drive system includes a drive motor, a drive belt and drive assembly for driving the cone between retracted and operative positions. A cone lock is engageable with a keeper located at a cone-advanced position of the drive assembly and is released by the drive belt whenever the drive motor is energized in the cone-retracting direction.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: April 19, 1983
    Assignee: Picker Corporation
    Inventors: Dennis Everett, Vjekoslav Jukic
  • Patent number: 4357538
    Abstract: An X-ray spotfilming apparatus including a film cassette carriage mounted for longitudinal, reciprocating motion in housing having at least one film cassette receiving opening. A carriage drive system including a servomotor and a feedback potentiometer is operative to drive the film carriage between a retracted position and a plurality of exposure positions. Clamp members are mounted for sliding transverse movement within the carriage assembly and are operative in connection with a clamp coupling mechanism and clamp drive system to effect both clamping and translational movements within the carriage. A cassette advance apparatus drives a film cassette to a predetermined position along a clamp members and includes a advance pawl engageable with the cassette and a feedback pot for monitoring the position of the pawl. The feedbck signals from the clamp drive and cassette advance potentiometers are utilized to determine the longitudinal and transverse dimensions of the film cassette.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: November 2, 1982
    Assignee: Picker Corporation
    Inventors: Robert P. Hunt, John D. Geither, Victor J. Hrdlicka
  • Patent number: RE37614
    Abstract: A method of X-ray photography or a method of some other type of radiation sensoring, such as electronic image storage, employs the use of a receptor unit (2) which can be swung outwards and upwards from an initial position in or beneath a patient support table (1) about alternative pivot centers (11, 12) disposed in the region of respective side edges of the table to alternative positions for operating with a horizontal beam path. The receptor unit can be swung out about a vertical axis from these positions in which it is parallel with the longitudinal direction of the table to a position in which it is parallel with the longitudinal direction of the table to a position in which the unit is perpendicular to the longitudinal axis of the table, to enable pictures to be taken of a patient seated in a wheelchair, for instance. The invention also relates to a patient support table (1) provided with a receptor unit (2) of this kind.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: April 2, 2002
    Assignee: Hologic, Inc.
    Inventor: Carl-Eric Ohlson