For Plural Exposures On Single Film Or Plate Patents (Class 378/175)
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Patent number: 11226422Abstract: 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: GrantFiled: June 30, 2020Date of Patent: January 18, 2022Assignee: SIEMENS HEALTHCARE GMBHInventors: Michael Hosemann, Thorsten Ergler, Jan Wrege
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Patent number: 9427869Abstract: 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: GrantFiled: December 10, 2013Date of Patent: August 30, 2016Assignee: Siemens AktiengesellschaftInventors: Peter Bier, Harald Mulzer, Wolfgang Neuber, Matthias Schirbl
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Patent number: 7825383Abstract: 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: GrantFiled: September 21, 2006Date of Patent: November 2, 2010Assignee: Siemens Medical Solutions USA, Inc.Inventors: A Hans Vija, James T. Chapman, Peggy Hawman, Ansgar Graw, John Thomas Pawlak, Guenter Hahn
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Patent number: 7252434Abstract: 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: GrantFiled: March 16, 2005Date of Patent: August 7, 2007Assignee: Wisconsin Alumni Research FoundationInventor: Hazim Ahmed Jaradat
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Publication number: 20030147503Abstract: 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: ApplicationFiled: January 31, 2003Publication date: August 7, 2003Inventors: Edgar Alzner, Tom Lloyd
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Publication number: 20030021382Abstract: 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: ApplicationFiled: May 30, 2002Publication date: January 30, 2003Inventors: Jan S. Iwanczyk, Bradley E. Patt
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Patent number: 6330302Abstract: 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: GrantFiled: December 22, 1999Date of Patent: December 11, 2001Assignee: U.S. Philips CorporationInventor: Johannes H. M. Joosten
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Patent number: 5815549Abstract: 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: GrantFiled: July 29, 1997Date of Patent: September 29, 1998Assignee: Siemens AktiengesellschaftInventor: Thomas Schmitt
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Patent number: 5764724Abstract: 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: GrantFiled: January 28, 1997Date of Patent: June 9, 1998Assignee: AO Medical Products ABInventor: Carl-Eric Ohlson
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Patent number: 5671266Abstract: 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: GrantFiled: September 15, 1995Date of Patent: September 23, 1997Assignee: U.S. Philips CorporationInventor: Claus Linhart
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Patent number: 5488951Abstract: 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: GrantFiled: November 23, 1993Date of Patent: February 6, 1996Assignee: Richard Wolf GmbHInventors: Edgar Bauer, Werner Krauss, Dietmar Stettner
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Patent number: 5465285Abstract: 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: GrantFiled: September 12, 1994Date of Patent: November 7, 1995Assignee: Siemens AktiengesellschaftInventors: Arthur Gall, Heinz Meier, Wilko Kuphal, Georg Vogel
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Patent number: 5388581Abstract: 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: GrantFiled: June 8, 1994Date of Patent: February 14, 1995Assignee: Richard Wolf GmbHInventors: Edgar Bauer, Werner Krauss, Michael Meyer, Joachim Fladl
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Patent number: 5202911Abstract: 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: GrantFiled: February 10, 1992Date of Patent: April 13, 1993Inventor: Carl E. Fabian
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Patent number: 5107531Abstract: 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: GrantFiled: June 27, 1990Date of Patent: April 21, 1992Inventor: Robert J. Elias
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Patent number: 5093852Abstract: 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: GrantFiled: May 20, 1991Date of Patent: March 3, 1992Assignee: Kabushiki Kaisha Morita SeisakushoInventors: Kazuo Nishikawa, Kozo Nakano, Keisuke Mori, Takahiro Yoshimura
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Patent number: 5033070Abstract: 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: GrantFiled: January 9, 1990Date of Patent: July 16, 1991Assignee: Orion-Yhtyma OyInventors: Heikki K. J. Kanerva, Erkki H. Tammisalo, Pasi T. Mustalahti, Olli J. Ojala
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Patent number: 4978599Abstract: 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: GrantFiled: July 11, 1989Date of Patent: December 18, 1990Assignee: Minnesota Mining and Manufacturing CompanyInventor: Sergio Pesce
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Patent number: 4979201Abstract: 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: GrantFiled: May 10, 1989Date of Patent: December 18, 1990Assignee: Innovative Imaging Sciences, Inc.Inventor: Robert A. Kruger
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Patent number: 4957691Abstract: 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: GrantFiled: May 30, 1989Date of Patent: September 18, 1990Assignee: Westinghouse Electric Corp.Inventors: Raymond W. Brashier, Edward D. Pfau
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Patent number: 4939764Abstract: 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: GrantFiled: November 30, 1987Date of Patent: July 3, 1990Assignee: Fischer Imaging CorporationInventor: Mark A. Markos
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Patent number: 4829182Abstract: Disclosed is an X-ray image-processing apparatus which is used, for example for diagnosis of a blood vessel.Type: GrantFiled: September 25, 1986Date of Patent: May 9, 1989Assignee: Kabushiki Kaisha ToshibaInventor: Hiroshi Kageyama
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Patent number: 4679217Abstract: 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: GrantFiled: April 8, 1985Date of Patent: July 7, 1987Assignee: Fairchild Medical Systems, Inc.Inventor: Richard A. Fairchild
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Patent number: 4539696Abstract: 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: GrantFiled: February 17, 1983Date of Patent: September 3, 1985Assignee: Siemens AktiengesellschaftInventors: Christian Walling, Helmut Schott
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Patent number: 4476569Abstract: 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: GrantFiled: November 10, 1982Date of Patent: October 9, 1984Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventor: Yoshimasa Ogo
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Patent number: 4380819Abstract: 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: GrantFiled: November 24, 1980Date of Patent: April 19, 1983Assignee: Picker CorporationInventors: Dennis Everett, Vjekoslav Jukic
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Patent number: 4357538Abstract: 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: GrantFiled: November 24, 1980Date of Patent: November 2, 1982Assignee: Picker CorporationInventors: Robert P. Hunt, John D. Geither, Victor J. Hrdlicka
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Patent number: RE37614Abstract: 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: GrantFiled: June 8, 2000Date of Patent: April 2, 2002Assignee: Hologic, Inc.Inventor: Carl-Eric Ohlson