Abstract: An improved, portable X-ray tomography system is disclosed wherein lateral movement of the various tomography components relative to a stationary patient during a scanning procedure is precisely controlled by mechanical displacement means which, in turn, is coupled to electro-mechanical means for simultaneously measuring and monitoring the amount of the displacement.

Abstract: A one-piece C-arm for use with X-ray diagnostic equipment included in cross-section two generally vertical sidewalls extending generally parallel to one another, an inner support wall connecting the sidewalls, and an outer support wall spaced-apart from the inner support wall and connecting the sidewalls. A pair of flanges extend outwardly from respective sidewalls, and toward one another to form at least one channel along an outer portion of the C-arm frame for receiving wheels or bearings to allow moveable mounting of the C-arm on diagnostic equipment.

Abstract: A support member for at least one piece of heavy medical equipment in a medical diagnostic station is made of fiber-reinforced plastic, and has a cross section which is longer in one direction than the other. The fiber-reinforced plastic serves as a shell surrounding a molding member, which may be lightweight plastic material, such that the fiber-reinforced plastic bears the loading on the member. The support member may be disposed for adjustable movement along its length by having metal guides received in the rollers of a carriage.

Abstract: An improved mobile X-ray unit has a counterweighted articulating X-ray tube support arm that allows positioning of an attached X-ray tube virtually without the need for moving a supporting carriage. The improved mobile X-ray unit also allows the X-ray tube to be locked to the supporting carriage during travel and the articulating X-ray arm includes several electro-magnetically actuated disk brakes capable of locking the articulating X-ray arm in a predetermined position. In the event that the carriage movement is required, the carriage may be moved by application of force on a force sensing handle engaged with the carriage by two strain gage assemblies. The strain gage assemblies provide signals to a motor drive control circuits which in turn propel two driven wheels in the direction and proportional to the force applied to the handle relative to the carriage.

Abstract: An X-ray apparatus includes a hydraulic system for counterbalancing and for displacing an apparatus section; the hydraulic system includes; cylinder with two cylinder chambers whose volumes vary in the opposite sense upon displacement of the apparatus section, and which can be coupled to a hydraulic drive via two respective hydraulic lines. Reliable operation and simple construction are achieved in that the hydraulic drive includes a pump circuit with a flow line and a return line, a control device being provided for optionally blocking or connecting the flow line to one of the two hydraulic lines, the two hydraulic lines communicating with the return line via a valve device which is weighted so that the hydraulic line of higher pressure is still closed relative to the return line but the hydraulic line of lower pressure is open relative to the return line.

Abstract: An apparatus having a support for supporting a subject on a surface and an imager for imaging the subject. The imager is movably coupled to a track to allow relative movement of the imager about the support. The track is located substantially along a plane which is substantially parallel to the surface of the support. The support may, in some embodiments, be rotatable from a horizontal to a vertical position for certain procedures. The track provides movement of the imager about at least three sides of the apparatus and, in some embodiments, is affixed to the floor. Further, the track is substantially aligned with a centerline of the support surface. This provides a firm support for the imaging means, but keeps the support structure at a position where it will not interfere with clinical operations.

Abstract: A radiogenic unit comprising an X-ray tube with fixed anode made of copper and its circuit for high-voltage supply in single-pole mode, these elements being placed in two parts that are imperviously sealed against fixed against X-rays, secured to each other in a hermetically sealed way. The first part, made of an electrically insulating material, has cavities for the housing of the X-ray tube and its supply circuit. The second part, made of material with high thermal conductivity, comprises a cavity for the housing of the tube, the anode of which is connected to a thermal and electrical frame. It can be applied particularly to radiology instruments.

Abstract: A mobile X-ray apparatus having a carriage driven in a direction in which forces are applied to a pair of right and left control bars operable without influencing each other. The right and left control bars are arranged symmetrically with respect to the direction of movement of the carriage. Each control bar is supported to be pivotable independently of the other in a substantially horizontal or vertical plane. A neutralizing mechanism is provided for maintaining each control bar in a neutral position when the control bar is free from an external force. Position detectors are disposed adjacent a forward position and a rearward position of each control bar, respectively, to detect displacement thereof. Each control bar has an equivalent capacitor structure having an electrostatic capacity variable when the operator grips the control bar. This structure provides a safety mechanism for allowing the carriage to move only when the operator grips the control bar.

Abstract: An X-ray radiographic apparatus for medical use in photographing tomographic images and X-ray penetration images of an examinee. This apparatus has a bed horizontally movably supporting a top board for carrying the examinee, a gantry for X-ray tomography including a first X-ray source revolvable around the examinee and a first X-ray detector for detecting transmitted X-rays, a second X-ray source mounted on a moving mechanism movable on a three-dimensional coordinate system in an examination room accommodating the bed and the gantry, a high voltage unit for supplying an X-ray generating high current to the first X-ray source and the second X-ray source, a switch for selecting a destination of output of the high voltage unit, and a second X-ray detector for detecting transmitted X-rays from the second X-ray source.

Abstract: An x-ray radiator has an x-ray tube disposed in a protective housing and a fastening means having a portion attached to the x-ray tube inside the housing, and a portion which extends through the housing to the exterior of the housing. The exterior portion serves as a fastener to attach the x-ray radiator to a mount. The x-ray tube, within the housing, thus becomes directly attached to the exterior mount, which improves the precision with which the specified position of the central ray of the x-ray beam emanating from the x-ray tube can be achieved.

Abstract: A mobile, radiographic unit which includes a wheel mounted base assembly and a roll bar assembly connected to the base. A vertical column is disposed on the base and a carriage assembly travels along the column length. Arm extension members extend outward from the carriage with a radiographic head being connected to the arm extensions by a disconnect assembly. Separate means are employed for maintaining the carriage assembly in a selected position relative to the column and maintaining the arm extension members in selected position relative to the carriage assembly.

Abstract: A mobile radiology machine that meets anti-toppling standards is made by limiting the unfolding of the structure that holds the X-ray tube, so that this unfolding occurs as a function of the angle of orientation of this structure about a vertical axis of exploration. It is shown that, under these conditions, it is possible to obtain satisfactory operation from a mobile radiology machine that weighs less and can be moved, if necessary, without the use of motors.

Abstract: In order to change from antero-posterior examination to lateral examination with an osteodensimeter, the yoke carrying the X-ray tube and the radiation detector of this apparatus is moved laterally. Changeover of the entire assembly is enabled when this lateral translation comes into abutment. When changeover is complete, the return transverse translation is performed. Prior to performing lateral examination, the bed on which the patient to be examined is lying is itself raised. It is shown that this dynamic configuration makes it possible to keep the position of the X-ray tube relative to the detector fixed and as adjusted by construction.

Abstract: An X-ray source holding apparatus comprises a rotatable plate, a holding unit and a control circuit. The rotatable plate is rotatably supports an X-ray source, and positioning holes are formed in the rotatable plate. The holding unit pivotally supports the rotating plate of the rotatable plate and contains a lock mechanism and a holding unit. The lock mechanism is made up of a lock pin which locks the rotatable plate by engagement with the positioning hole, and a spring which urges the lock pin toward the rotatable plate. The solenoid drives the lock mechanism such that the lock pin is disengaged from the positioning hole. The control circuit starts the driving of the lock mechanism in response to the operation of a control switch. Further, the control circuit controls the solenoid in such a way that the driving of the lock mechanism is stopped when a predetermined time has elapsed from the start of the driving of the lock mechanism.

Abstract: A radiation treatment apparatus is provided which has an extendable imaging device. The radiation treatment apparatus comprises a stand which supports a gantry in a rotable manner. The gantry has a treatment head for emitting a radiation beam towards an object. The extendable imaging device is coupled to the gantry opposite to the treatment head in the trajectory of the radiation beam at a point past the object. The imaging device includes an holding means which is extendable from the gantry one end of which is arranged at the gantry and at the other end of which a detector head is coupled. The detector head comprises an image converting means which in its operating position is essentially perpendicular to the radiation beam and which converts an image represented by the radiation beam into a visible image. It also comprises a reflector coupled with the image converting means for reflecting the visible image into a light channel formed by the holding means and to a video camera.

Abstract: An X-ray imaging apparatus has an X-ray imaging unit having an X-ray emitting source and an X-ray image recording member, and a rotatably supporting pedestal for rotatably supporting the X-ray imaging unit. A cam member is provided at one of the X-ray imaging unit and the rotatably supporting pedestal, a cam surface of which extends in the circumferential direction around the rotating center line of the X-ray imaging unit and an engaging recess is formed on the cam surface to be recessed inwardly in the radial direction relative to the rotating center line. The engaging mechanism is provided at the other of the X-ray imaging unit and the rotatably supporting pedestal to be in contact with the cam surface of the cam member and telescopically engaged with the engaging recess of the cam surface when the X-ray imaging unit is rotated.

Abstract: An overhead X-ray apparatus for imaging in the bi-plane configuration which apparatus has the radiation isocenter vertically displaceable. A C-arm (or a like) for supporting an X-ray tube and image receptor is mounted on a carriage assembly in a rotatable arrangement about a vertical axes. The carriage assembly comprises a support frame and a slideable support mounted on overhead rails coupled by a scissor mechanism. A distance between the support frame and the slideable support and, hence the vertical position of the radiation isocenter can be varied by action of chains or timing belts connecting the support frame with the anchoring member which moves along the slideable support while actuated by an actuator.

Abstract: The invention relates to a X-ray examination unit, comprising a stand on which is vertically movable a bracket with a moving grid means and a X-ray tube. In order to permit a large number of photographing possibilities on a standing, sitting or lying patient from different directions, said bracket is also horizontally movable, said moving grid means at a lateral end of said bracket is pivotable about a vertical axis, said X-ray tube is held on one end of a substantially C-shaped support arm, whose other end is located on said moving grid means and is fixed in such a way that said X-ray tube, together with said moving grid means, is pivotable about said vertical axis and said moving grid means is additionally rotatable about a horizontal axis.

Abstract: An x-ray examination apparatus has a bent carrier having a first end to which a radiation source is attached and a second end to which an x-ray image intensifier is connected. The radiation source and the image intensifier are respectively connected to the carrier via individual, laterally projecting booms. Each boom is connected to the carrier so as to be rotatable around an axis at the end of the carrier to which it is connected. The arrangement allows unimpacted accessibility to the patient in different types of examinations.

Abstract: A mobile x-ray apparatus has an x-ray tube secured to a carriage via an arm mechanism, whereby the x-ray tube is adjustable both vertically and horizontally, and is provided with wheels for movement along a floor, and having a support which may be lowered to a floor to support the x-ray apparatus. Such a support, in its lowered position, supports the x-ray apparatus such that the x-ray apparatus is rotatable about the support, thereby improving the ease with which the x-ray tube may be positioned.

Abstract: In an X-ray examination apparatus, comprising a column, a mount which is connected to the column and which is rotatable about an axis, and a C-shaped carrier which is journalled in the mount, there is provided a friction roller which serves to drive and brake the C-shaped carrier and which bears against a contact face provided along the carrier. The carrier is thus locked in a play-free manner and can be readily adjusted by hand. Because the friction roller is journalled in a carriage which is displaceable with respect to the mount, a pressure exerted on the contact face by the friction roller is adjustable.

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.

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

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.

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.

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.

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.

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.

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.

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.

Abstract: Cooling oil for an X-ray tube head assembly is contained within a resilient elastomeric envelope together with a high voltage assembly.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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 0.degree., 90.degree., 180.degree. or 270.degree., 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.

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.

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.

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.

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.

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.