Source Support Patents (Class 378/193)
  • Patent number: 5052036
    Abstract: An X-ray stand includes a fixture attached to the ceiling surface floor surface or side wall surface of a hospital room. A support is connected to the fixture with a rotary bearing connected to a circular track. An arcuate carriage sliding in the track has a radiation source and receptor respectively at its ends which are aligned on a radiation axis through a patient position. The rotational axis of the bearing is inclined at a substantial angle to the fixture and to the wall to which the fixture is attached so that, when the one end of the arcuate carriage is in a position near the ceiling or other wall, rotation around the bearing axis will rotate the radiation axis through substantially different angles through the patient position.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: September 24, 1991
    Inventor: John K. Grady
  • Patent number: 5048070
    Abstract: An X-ray tube support apparatus includes: an X-ray tube support mechanism for supporting an X-ray tube to be vertically extendible/movable; a guide unit, having moving paths which allow movement in two-dimensional directions parallel to a ceiling surface, for supporting the X-ray tube support mechanism, and guiding the X-ray tube to a central position of one photographing table; a plurality of position sensors, arranged in a vertical moving path of the X-ray tube support mechanism, and two-dimensional moving paths to the central position of the photographing table, for detecting vertical and two-dimensional moving positions of the X-ray tube support mechanism; a plurality of fixing units, arranged in the two-dimensional moving paths of the guide unit and the vertical moving path of the X-ray tube support mechanism, for fixing the X-ray tube support mechanism at each moving position; and a determination unit for storing position data in accordance with the central position of the photographing table and a set
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: September 10, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomio Maehama, Kiyoaki Inoue
  • Patent number: 5048069
    Abstract: A bi-directional dual-slide support mechanism providing support and extended travel for X-ray system components, such as an image intensifier, includes a primary slide driven bi-directionally over a primary range of travel by a motorized rack and pinion arrangement and a secondary slide in telescoping relationship with the primary slide driven bi-directionally in concert with the primary slide by stationary belts coupled over roller members positioned at opposite ends of the primary slide, the belts being secured to a fixed frame member and to the secondary slide.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: September 10, 1991
    Assignee: Fischer Imaging Corporation
    Inventor: Bernard W. Siczek
  • Patent number: 5040203
    Abstract: A simple and robust X-ray stand for angio graphic examinations is obtained by rotatably suspending a U-shaped or C-shaped carrier from an L-shaped arm which is connectd to a vertical column so as to be rotatable about two orthogonal intersecting axes of rotation at the column. The irradiation directions can be readily adjusted by hand when a counterweight is connected to the arm.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: August 13, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Jozef T. A. Janssen, Johannes G. Van Endschot
  • Patent number: 5038371
    Abstract: An x-ray examination apparatus in which an opposed x-ray source and x-ray image detector, which establish a radiation vector and an image orientation direction traverse to said vector, are mounted to be positioned relative to a series of three independently operable axes of rotation. Computing and measuring means are provided by which angular positions of rotation about the various axes can be correlated to simultaneously achieve both a desired angular orientation of the radiation vector and a desired direction of image orientation.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: August 6, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Jozef T. A. Janssen, Robert van der Ploeg, Cornelis L. Schuppert, Adrianus A. J. van der Vegt
  • Patent number: 5008921
    Abstract: A portable x-ray diagnostics apparatus has a base to which a support for an x-ray tube and an x-ray detector is mounted at a front of the base. A control panel for operating the x-ray apparatus is electrically connected to compnents in the interior of the base by a flexible cable. The length of the cable permits the position of the control panel relative to the base to be selected as being at a rear of the base, or at either side of the base, so that the control panel can be positioned so as to be easily read or reached by a user. The top surface of the base may have recesses therein adapted to receive and releasably hold the control panel in the various positions, or the control panel may be magnetically held on the top surface at a selected position.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: April 16, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karlheinz Kaul, Hans-Christian Bock
  • Patent number: 4993057
    Abstract: A sterilizable removable handle is provided in associated with an X-ray tube head assembly to permit manipulation of the assembly within a sterile field while avoiding contamination of an operator's hand.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 12, 1991
    Assignee: MDT Corporation
    Inventor: Robert R. Runnells
  • Patent number: 4989229
    Abstract: A counterbalance assembly (A) provides support for diagnostic imaging equipment such as an x-ray source (B). A fluid spring (F) is utilized to counteract the weight of the source and provide controlled movement of the source. A one-way clutch (100) cooperates with an arm assembly (E) that interconnects a source mounting member (D) with a base member (C) to limit movement of the arm and source. A locking assembly (112) is associated with the clutch to selectively actuate and deactuate the clutch.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: January 29, 1991
    Assignee: Picker International, Inc.
    Inventors: Donald E. Negrelli, Donald E. Kolbfleisch, Anthony D. Szpak
  • Patent number: 4987585
    Abstract: A multi-axis profiling x-ray machine for making angiographic examinations includes an L arm rotatable about a first machine axis intersecting an isocenter, the L arm defining a second machine axis intersecting the isocenter and perpendicular to the first machine axis. An offset arm is rotatable about the second machine axis, and includes a curved guide collar holding C arm. The C arm slides along the collar to move an x-ray source mounted on one end of the C arm and an image receiver mounted on the other end of the C arm about a third machine axis perpendicular to the second machine axis. The three axes permit isocenter profiling motion about an arbitrary angle in three dimensions.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: January 22, 1991
    Assignee: General Electric Company
    Inventors: Harold J. Kidd, Paul R. Anderson
  • Patent number: 4984261
    Abstract: Cooling oil for an X-ray tube head assembly is contained within a resilient elastomeric envelope together with a high voltage assembly.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: January 8, 1991
    Assignee: MDT Corporation
    Inventors: Robert Maldonado, Jack H. Faude
  • Patent number: 4979202
    Abstract: A support structure for an X-ray imaging apparatus including an X-ray source and an X-ray receptor supported on opposite ends of a C-arm structure or the like is disclosed. This support structure provides a movement of a C-arm structure or the like a lengthwise and around a patient table allowing for examinations a patient's head side.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: December 18, 1990
    Inventors: Aldona A. Siczek, Bernard W. Siczek
  • Patent number: 4972459
    Abstract: An x-ray radiator has a housing containing an x-ray tube, and having receptacles for high-voltage cables. A noise attenuating high-voltage cable has a number of ferromagnetic cores or rings which surround the cable at a location relatively close to the housing high-voltage receptacle. Noise pulses caused by high-voltage arcing in the x-ray tube are thereby attenuated, and thus do not have a significant effect on other system components, such as computer components, making the cable particularly beneficial for use in computer tomography installations.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: November 20, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andres-Guenter Sommer
  • Patent number: 4964151
    Abstract: The invention concerns an X-ray stand permitting isocentric movements and intended particularly for radio diagnosis. Stand includes a base supporting a binding clip having a first and second arm supporting respectively an X-ray source and receiver. According to a feature of the invention, binding clip includes a foot by which it is supported by the base by means of devices to move foot in a circular movement centered on an isocenter point.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: October 16, 1990
    Assignee: General Electric CGR SA
    Inventor: Jacques Trotel
  • Patent number: 4964150
    Abstract: An adjustable X-ray examination apparatus comprises an auxiliary force element, for example, a weight or a resilient element in order to reduce varying counterforces occurring in a drive mechanism thereof, which auxiliary force element exerts a force which increases in the course of the adjustment. The force acts notably with a moment which increases towards the extreme zone of an adjustment. The auxiliary force element may be mounted and adjusted so that a substantially constant external force suffices for a full range of adjustment of the X-ray examination apparatus.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: October 16, 1990
    Assignee: U.S. Philips Corporation
    Inventors: Antonius G. Van Der AA, Theodorus J. M. Van Genechten
  • Patent number: 4918716
    Abstract: An X-ray examination installation has two image pick-up units, and avoids the necessity of having a ceiling mount. The two image pick-up units are mounted on a common pedestal, pivotable around a common horizontal axis. The carrier for one of the image pick-up units is directly connected to the pedestal, and the carrier for the other of the pick-up units is connected to the pedestal via an intermediate carrier. Both image pick up units are adjustable in two planes by this installation.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: April 17, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventor: Alfred Hahn
  • Patent number: 4893321
    Abstract: An x-radiator, particularly useful for intra-oral dental exposures, includes a common housing having a barrel at one end, a high-voltage generator having a high-voltage transformer being arranged in the housing adjacent said barrel, and an x-ray tube being mounted in the housing at an end of the transformer opposite said barrel, said transformer having a cylindrical configuration having an opening with a longitudinal axis through which opening the x-ray beam passes from the x-ray tube through the transformer coil to the barrel.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 9, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dorothea Eitner, Hermann Kuehnke, Elisabeth Messingschlager, Dorothea Wilke
  • Patent number: 4884293
    Abstract: An X-ray photographing apparatus includes first and second systems for photographing an object from different directions. A first arm of the first system supports a first X-ray tube thereon and is arranged to be rotatable. A second arm of the second system supports a second X-ray tube thereon and is arranged to be rotatable. When at least one of the arms is rotated, interference between the arms is prevented by an interference preventing device. The device has a storing section storing data relating to relative positions between the arms when at least one of the arms is rotated while an iso-center, i.e., the crossing point of X-ray beams emitted from the X-ray tubes coincides with the rotational centers of the arms.
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: November 28, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Katsuhiko Koyama
  • Patent number: 4875228
    Abstract: An improved gantry for an examination apparatus, such as an x-ray apparatus comprising a source of x-rays and a detector of fluoresced photons, is disclosed. The apparatus is particularly suitable for use in a vehicle such that the examination can be carried out at locations convenient to the patients. The apparatus comprises a vertical standard and first and second carriages. The first carriage is movable along the vertical standard and carries a horizontal arm. The horizontal arm carries the second carriage, which moves along the horizontal arm in a direction orthogonal to the axis of the standard. A transverse arm carrying the x-ray apparatus is carried by the second carriage and moves with respect thereto in a third direction orthogonal to the first and second directions, so that three directions of motion along orthogonal axes are thus provided. Additionally, the second carriage is rotatable about the horizontal arm providing a first direction of rotation.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: October 17, 1989
    Assignee: Davru Manufacturing Ltd.
    Inventor: David Archer
  • Patent number: 4866752
    Abstract: The invention relates to an X-ray examination apparatus comprising a vertical pillar at which a truck carrying an X-ray system is longitudinally displaceable. The pillar is a closed box profile and includes a U-shaped depression proceeding in longitudinal direction at each of two parallel long sides lying opposite one another, whereby the depressions serve as rails for the truck longitudinally displaceable on the pillar.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: September 12, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hans-Christian Bock, Karlheinz Kaul
  • Patent number: 4856044
    Abstract: Apparatus for determining the osseous mineral content by partial absorption of ionizing rays by a source preferably constituted by two elements. It comprises a mobile carriage on slides and two arms carrying the transmitter block for the radioactive beam and the receiver block and articulated in such a way that the incidence of the beam can either be horizontal or vertical. The receiver block is provided with a plurality of sensors making it possible to produce a bidimensional image.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: August 8, 1989
    Assignee: Commissaruat A L'Energie Atomique
    Inventors: Jean-Claude Tanguy, Domonique Chambellan, Raymond Pommet
  • Patent number: 4813064
    Abstract: A diagnostic imaging scanner system is provided which includes an arm structure mounted to a support structure for pivotal motion about a substantially horizontal arm axis. A source of radiation directs radiation along a beam path. A detector is mounted on the arm structure in alignment with the beam path and is spaced from the source to accommodate placement of a subject under examination therebetween. During pivotal motion the detector thus moves along an arcuate path which lies in a substantially vertical plane. Means are provided for compensating the gravitational torque experienced about the arm axis during scanning motion. The compensating means includes means for producing a predetermined force and a cam mounted for pivotal motion about a substantially horizontal cam axis which is operatively coupled to the force means for converting the predetermined force to a first torque about the cam axis.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: March 14, 1989
    Inventors: David Jackson, III, Dale A. Havel
  • Patent number: 4802198
    Abstract: An apparatus for supporting an X-ray unit in a vertically adjustable manner. The apparatus includes a frame having two posts and a carrier supported between the posts. The post are slotted and the carrier includes guide members received within the slots. The carrier also includes a counterbalance for supporting the carrier between the post. The counterbalance includes a support cable and force element.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: January 31, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Guenther, Heinrich Schmitt
  • Patent number: 4769832
    Abstract: An isocentric examination stand for radio-logical examinations of a patient comprising a cradle in the form of an arc of a circle which is circularly displaceable, a cradle support, an X-ray source and a radiation detector, the cradle being composed of mechanically assembled elements forming a structure defining the geometry of the cradle. The structure permits the passage of a supply cable of the source and of the detector into the cradle support.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: September 6, 1988
    Assignee: U.S. Philips Corporation
    Inventor: Andra E. Louiday
  • Patent number: 4759048
    Abstract: A counter-weight balanced X-ray frame (1) has a vertical column (2) on which a pendulum arm (3) carrying X-ray equipment (4, 5) is mounted for vertical movement therealong and rotational movement therearound. A brake disc (10) for arresting rotational movement and actuated by a magnetic brake (11) is incorporated in a centering mechanism adapted to seek one or more pre-determined positions for the pendulum arm, e.g. when it forms an angle with the frame of,, or, without the operator needing to interfere in the sequence of movements. When the relevant setting position is approached, the operator need only carry out the operating movement which activates corresponding brake means--for example releases a corresponding operating handle on the pendulum arm--whereupon the pendulum arm itself adopts the pre-determined setting position.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: July 19, 1988
    Assignee: AO Medical Products AB
    Inventor: Carl E. Ohlson
  • Patent number: 4756016
    Abstract: An X-ray apparatus is disclosed comprising an angularly adjustable parallelogram formed by two members parallel to a central axis and two members transverse the central axis. A radiation source and a radiation receptor are positioned at one end of the respective parallel members. The apparatus is characterized in that the two transverse members are disposed on opposite sides of the central axis, and one end of both parallel members is offset to the same side of the central axis.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: July 5, 1988
    Assignee: John K. Grady
    Inventors: John K. Grady, Gordon D. Row
  • Patent number: 4752948
    Abstract: An alignment device for use in mobile radiography. In contrast to prior practice in which a film cassette is placed on one side of the patient, an x-ray source on the other, and it is left to the skill of the technician to approximate the necessary alignment, the present invention assures consistent alignment much more precise than is typically achieved. The precise alignment allows regular use of a grid in mobile radiography which helps to prevent image deterioration caused by scattered radiation. The precise alignment is achieved by providing an adaptable physical connection which when in the deployed condition, accurately establishes both the distance between the focal spot and the film plane and the alignment of the grid with respect to the central ray.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: June 21, 1988
    Assignee: University of Chicago
    Inventor: Heber MacMahon
  • Patent number: 4727564
    Abstract: A compact, lightweight, portable, versatile and modular field x-ray system is disclosed. A base member is provided and supports an x-ray table. Two vertical masts are also coupled to the base, for movement alongside the table in a direction parallel to its longitudinal dimension. The masts move independently of one another but can also be linked together for movement in unison. A tube head is attached to one mast by articulated structure, including a series of offset arms, which affords the tube head 6 degrees of freedom of movement, both above and below the x-ray table. A spot film device is movably coupled to the second mast. The second mast and spot film device are manually removable from the remainder of the system for operation in radiographic only mode.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: February 23, 1988
    Assignee: Picker International, Inc.
    Inventors: James G. Mekker, Joseph S. Deucher, Bruce E. Lutheran, Anthony D. Szpak
  • Patent number: 4715057
    Abstract: The invention relates to an x-ray apparatus comprising an apparatus base, a tiltable part, a displaceable carriage for x-ray parts running on the tiltable part along guide rails and having a spring weight compensation device having compensating forces adjustable by motor drive depending on the apparatus position, whereby at least one slot-shaped opening is provided on the carriage, one end of a one-armed load lever hinged to the tiltable part being displaceable in the slot-shaped opening. Between its ends, the load lever is pivotably connected to a sleeve seated in gliding fashion on a rod, the sleeve being supported with a spring at the one end of the rod whose other end is hinged to a nut displaceable by means of a motor-actuatable spindle, whereby the threaded spindle is arranged essentially parallel to the guide rails.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: December 22, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Alfred Hahn, Bodo Kamm, Karl Weiss, Johannes Dummert
  • Patent number: 4673842
    Abstract: A cathode cup structure for a high voltage x-ray tube having a base formed of a weldable material and an exposed upper surface of a non-weldable material bonded to the base. The upper surface may be machined from a block of graphite to form an appropriate cathode cup structure configuration and then bonded to a base formed of TZM using a platinum brazing compound. The graphite upper surface may be coated with pyroltic carbon to reduce dust or alternatively, may be formed of a composition of silicon carbide graphite to minimize dusting problems. The graphite composition of the upper section of the cathode cup minimizes the risk of welding of an electron emissive filament passing through the cup structure.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: June 16, 1987
    Assignee: General Electric Company
    Inventors: Ronald D. Grieger, Sepehr Fariabi, Joshua O. Kolawole
  • Patent number: 4660799
    Abstract: A load supporting structure primarily for supporting X-ray apparatus in the form of a free standing unit which can be packaged as a kit and assembled at an on-site location. The load supporting structure comprises a pair of spaced apart longitudinally extending first beams with a plurality of spaced apart transversely extending second beams connected to the longitudinally extending first beams. The longitudinally extending beams are supported by a plurality of upright columns. The X-ray apparatus is supported on the transversely extending beams and is shiftable therealong. The distance between the transversely extending beams can be easily adjusted in order to compensate for the dimensions of the X-ray apparatus.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: April 28, 1987
    Inventor: Edward H. Butland
  • Patent number: 4635284
    Abstract: The invention relates to an X-ray examination apparatus in which the X-ray source and the X-ray detector are secured to a C-shaped or U-shaped support. This support comprises two arms which are pivotable about parallel axes and which are coupled to one another in such a way that opposite pivotal movements through equal angles are obtained. The C-shape or the U-shape of the support is then changed, so that the support can be rotated without the risk of a collision with the table top carrying the patient.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: January 6, 1987
    Assignee: U.S. Philips Corporation
    Inventor: Dieter H. C. Christiansen
  • Patent number: 4630796
    Abstract: An X-ray apparatus having a hydraulically controlled counterweight. A flexible roll diaphragm seals each piston to each cylinder in the system.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: December 23, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Harald Kayser, Walter Schmedemann
  • Patent number: 4628523
    Abstract: An X-ray simulator has an X-ray source and collimator connected to the end of a cantilevered horizontal arm mounted on a gantry that rotates about a horizontal axis and extends along a patient supporting table. The horizontal arm has an asymmetrical cross section that causes the arm and therefore the X-ray source and collimator to deflect by differing amounts as the gantry rotates. To compensate for the varying displacement of the X-ray target point and to adjust the position of the target point along the rotation axis of the gantry, the collimator is pivoted in one direction or the other in accordance with the amount of rotation of the gantry axis.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: December 9, 1986
    Assignee: B.V. Optische Industrie de Oude Delft
    Inventor: Chester L. Heflin
  • Patent number: 4433432
    Abstract: A rotary anode X-ray tube accommodated in a housing together with oil has a journal box fixed and inwardly extending inside the tube, an anode target fixed to a rotor supported by the journal box and a cathode member opposing the anode target and fixed at an end portion inside the tube opposing the journal box. The fixing portion between the rotary anode X-ray tube and the journal box is supported by a resilient support member on the housing and vibration damping means is disposed on the support member. The vibration damping means includes a moving member fixed at its center and a fixed member fixed to the housing so as to encompass the moving member with a predetermined gap, and oil is fully charged in the gap. Vibration of the rotation system is transmitted to the moving member and the operation of this member damps the vibration by means of the squeeze action of the oil.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: February 21, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Katsutoshi Nii, Kinpei Okano, Motomichi Doi, Minoru Kitsuya
  • Patent number: H537
    Abstract: An X-ray tube holder is described for holding X-ray tubes in proper alignment for performing radiographic leading edge cowl assembly exposures. The holder has a base to which are attached a holding arm and a fixed angle rest for holding the X-ray tube to the base. A pair of latches are attached to the base on the other side from the holding arm and fixed angle rest to attach the holder to air outlet apertures on the inside of an aircraft engine cowl. The holder may be moved around the inside of the cowl to take exposures at various locations.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: October 4, 1988
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Hansel M. Pinder, Antonio P. Buchanan