Abstract: A treatment-diagnostic apparatus has a positioning device with a positioning plate for the treatment and/or examination subject that is adjustable at a base and is transparent for radiation in at least one region. The positioning plate, with reference to the base, is mounted so as to be adjustable at least along its longitudinal axis and is mounted at the base so as to be adjustable in height, as well as around three spatial axes x, y, z. Due to the versatile adjustability, such an apparatus meets the demands for an angiographic diagnostic and/or therapy as well as for surgical procedures.

Abstract: A reference grid is incorporated into a flexible transport media for use in internal inspection equipment such as airport x-ray equipment. The reference grid is used as a standard calibration of known density to analyze threat potential of baggage components.

Abstract: The invention relates to an X-ray examination apparatus which can be universally used for X-ray fluoroscopy and X-ray exposures. It includes a tiltable patient table, a horizontally displaceable stand on which an X-ray source is mounted so as to be vertically displaceable, and a coupling member which couples the stand or the X-ray source to the image converter arrangement provided in the patient table. Depending on the type of coupling, either X-ray fluoroscopy and Bucky exposures or slice exposures are possible. Furthermore, other exposure modes can be performed when the stand is decoupled from the coupling member.

Abstract: The X-ray system includes a patient table (1, 2, 3) and a radiation module with a radiation source (6) and a radiation receiver (7) and can be universally used for the examination of a plurality of organs by means of a wide variety of methods. Therefore, it is particularly suitable for use in conjunction with one of the novel digital flat detectors which can thus be economically used despite their high price. This is achieved essentially in that the radiation module includes a carrier (4, 5, 51 to 55) on which the X-ray source (6) and the radiation receiver (7) are mounted so as to face one another and which is attached to the patient table so as to be pivotable in such a manner that the X-ray system can be used in the overtable technique as well as in the undertable technique.

Abstract: An X-ray device includes a C-shaped arm, a first end of which supports an X-ray source and a second end of which supports an X-ray image pick-up device. The C-shaped arm is pivotable about a pivot axis relative to a carriage. The carriage is tiltable about a tilting axis relative to a guide. The guide is rotatable about a propeller axis. The tilting axis extends at an angle relative to the propeller axis. A leverage point on the propeller axis is situated near the tilting axis. The mass center of the C-shaped arm is situated on the pivot axis. The mass centers of the C-shaped arm and of the carriage are situated on a leverage line which extends at least substantially through the leverage point. The mass centers of the C-shaped arm and of the carriage are situated to both sides of the leverage point.

Abstract: An apparatus and method are provided for obtaining x-ray tomosynthesis data desirable for mammography. The apparatus operates in conjunction with gravity to quickly and smoothly move an x-ray source through a plurality of positions relative to a stationary digital detector and a patient's breast to obtain a plurality x-ray images of the patient's breast which can then be processed for examination by a physician or radiologist. In one embodiment, an actuator such as a hydraulic system is operably connectable to the radiation source to controllably allow the radiation source to move under the influence of gravity from an elevated position to a lower position relative to the digital detector.

Abstract: This invention provides an exchange jig for assisting work of exchanging a heavy object such as an X-ray tube. This exchange jig has a detachable unit, which enables attaching/detaching the exchange jig to/from the top plate of a bed. In exchange work, the exchange jig is attached to the top plate of the bed. The elevating function and top plate slide function of the bed realize a forklift function together with the support function of the arm unit of the exchange jig. If exchange work is not performed, the exchange jig can be detached from the top plate of the bed. The arm unit is attached to the detachable unit through a rotating unit. The rotating unit freely rotates about an almost vertical axis. This rotation facilitates work of transferring the heavy object between the arm unit and a gantry, and work of transferring the heavy object between the arm unit and a truck.

Abstract: An IVR-CT apparatus of the present invention includes a bed including a table top movable in its longitudinal direction, an X-ray diagnostic apparatus including an arm movably placed in the vicinity of the bed, an X-ray CT apparatus including a CT gantry movably placed in the vicinity of the bed, a position memory for storing a plurality of position data sets containing position data of the arm and position data of the CT gantry, a control panel including a plurality of positioning switches for selecting an arbitrary one of the plurality of position data sets, and a controller for controlling the movements of the arm and the movements of the CT gantry in accordance with the selected position data set.

Abstract: An x-ray examination apparatus has a base with at least one fixed part and one carriage that can be vertically shifted in relation to the fixed part. The carriage is provided with a horizontally projecting shaft, to which an apparatus component is mounted and which has a center axis around which the apparatus component can rotate. A pulley with a peripheral surface that is at least partially round is rotationally mounted to the shaft and is firmly connected to the apparatus component. A first pair of wheels is arranged at the fixed part of the base and a connector is provided to connect the pulley to the wheels so that whenever the wheels are respectively simultaneously rotated in different directions, the pulley and thus the apparatus component are vertically shifted and whenever the wheels are rotated in the same direction, the pulley and thus the apparatus component are caused to rotate around the center axis.

Abstract: A radiographic stand with a radiation image receiving portion includes a lying stand having a top plate on which a subject lies down, a radiation image receiving portion located below the top plate, and a moving mechanism for making the radiation image receiving portion movable in the widthwise direction or the lengthwise direction of the top plate. The moving mechanism also makes the radiation image receiving portion erectable in a vertical direction.

Abstract: An X-ray examination apparatus has a base and a support connected by an arm arrangement. The support is connected to a holding device in which a curved carrier is displaceably mounted, the curved carrier having an X-ray emitter at one end and a radiation detector at an opposite end. An examination table is movable between the X-ray emitter and the radiation detector. The arm arrangement is composed of at least first and second arms. The first arm is rotatably mounted at a shaft at the base, and the second arm is rotatably mounted at a shaft at the carrier. The respective free ends of the first and second arms are rotatably connected to each other by another shaft. The carrier, without bothersome components of the stand beneath the examination table, can be rotated 90° from a head-adjusted position in both directions to lateral positions, while maintaining the isocenter at a fixed position, and the carrier also can be lowered to the floor on which the base is disposed.

Abstract: In an operating table system for the computer tomography assisted performance of operations on patients, including an operating table 10 with a subframe 14 and a patient support surface 12 releasably connected with the subframe, the patient support surface means 12 has a frame 16 connected with the subframe 14 and an x-ray permeable patient support plate 20 longitudinally slidably carried in the frame 16, with a support frame 44 intended for the reception of the support plate in a computer tomography system 40 having coupled with it a coupling station 46 for the transfer of the support plate from the operating table 10 to the support frame 44 and vice versa.

Abstract: Radiology instrument comprising an X-ray tube linked with a plane detector. A support device comprises a pedestal of overall L-shape resting on the floor, with a substantially horizontal base, a substantially vertical post and an axis of rotation passing through one end of the base, the post being fixed to the other end of the base and being parallel to the axis, a bracket which is fixed to the top of the post and can rotate about a horizontal axis, and a C-shaped arm which is mounted on the bracket and is capable of rotating about an axis substantially perpendicular to the horizontal axis by sliding on bracket, the tube and the detector being mounted on bow and facing one another, the axis of the bracket the axis of the arm being secant at a point in space referred to as the isocenter. The instrument comprises a means for moving the isocenter continuously along a longitudinal axis of a patient held static.

Abstract: An X-ray image apparatus is formed of an X-ray irradiation device for irradiating X-ray to a subject with an observing area, and an X-ray image taking device for receiving the X-ray irradiated from the X-ray irradiation device and passing through the subject. The X-ray image taking device provides image signals of the X-ray passing through the subject. A support device is connected to the X-ray irradiation device and the X-ray image taking device for supporting and moving both devices around the subject. A calculating device is electrically connected to the X-ray image taking device for calculating a location of the observing area in the subject by image signals obtained from at least two different directions. The center of rotation for the X-ray irradiation device and the X-ray image taking device is adjusted to be the center of the observing area to thereby easily read the images from different directions.

Abstract: An x-ray examination positioner has a base and an arm whose first end is rotatable around a first axle attached in the base and whose second end is connected to a holder in which a curved carrier is displaceably arranged. One end of the carrier carries an x-ray tube and the other end thereof carries an x-ray these being directed toward one another. In combination with an examination table, the carrier can be brought from a head-placed attitude into a vertical side attitude and/or into a lateral position while retaining the imaginary isocenter and, moreover, the physician has very good access to the patient, by rotatably attaching the holder of the carrier to the arm via a second axle. The first axle and the second axle are oriented such that respective imaginary extensions thereof as well as the central ray between the x-ray tube and the receptor intersect at a common point in all attitudes of the arm and of the carrier.

Abstract: A multiple examination arrangement has a number of imaging systems, including at least an angiography system, a CT system and an MR system arranged in a room such that a patient lying on a patient bearing table can be selectively examined without repositioning in one of the imaging systems by a relative movement of the carrier of the imaging systems and the patient support table.

Abstract: Radiographic diagnostic device has a projection unit that is formed as a computer tomography system with a radiation emitter and a line detector, which are constructed such that they can be rotated around a projection area opposite one another. A support apparatus with a support plate for an examination subject is provided. The radiographic diagnostic device has an additional radiation receiver allocated to it so that the additional radiation receiver can be moved from a standby position into a pick-up position for receiving a radiation beam that emanates from the radiation emitter of the computed tomography system. Both computed tomography projections and conventional X-ray projections can be obtained with the radiographic diagnostic device when the additional radiation receiver is realized as a radiographic film, a solid-state detector, or a storage foil.

Abstract: An X-ray spectroscopic analyzer having a mechanism for observing a sample surface, for analyzing a sample 3 by irradiating X-ray 4 thereupon within a chamber 2, comprises: a viewer apparatus 11 for letting the sample to be viewed; and an illumination means 31 for illuminating a surface of the sample 3, by irradiating an illuminating light B upon the surface of the sample 3 obliquely, while suppressing an incidence of a reflecting light of the illuminating light B upon the viewer apparatus 11. With such the construction, a shape of a contaminated portion, a residue or the like, upon the sample surface, can be clearly observed under dark field on the viewer apparatus 11, while keeping the sample 3 set within the x-ray spectroscopic analyzer 1.

Abstract: A non-rigid object holder assembly for use in examination of an object having a base (6), a first member (5) and a second member (2) movably mounted with respect to each other and said base (6), a mechanism (8) for controllably moving the members with respect to each other and the base. A first resilient membrane (4) attached to the first member (5) and a second resilient membrane (1) attached to the second member (2), the first and the second resilient membranes forming first and second inflatable components (4′,1′) for holding the object to be examined therebetween. A pressure system ((11, 19) operably connected to the first and the second inflatable components for controllably inflating each of the inflatable components.

Abstract: An x-ray system comprising a scanning beam x-ray source configured to projected at least one x-ray beam in a generally upward direction. When the generated x-rays are scattered they are scattered in a direction predominantly away from x-ray sensitive areas of attending staff. The unscattered x-rays are subsequently received at a detector and an image is reconstructed.

Abstract: A helical-scanning type of X-ray CT apparatus includes a dolly 15 and a gantry body 7 mounted on the dolly 15. The dolly 15 is capable of translation relatively to a patient 5 lying on a tabletop 3. An X-ray tube 9 and an X-ray-detector 11 opposing the X-ray tube 9 are rotatably accommodated in the gantry body 7. In operation, the helical scanning operation of the X-ray CT apparatus is carried out by combining the translation of the dolly 15 with the rotation of the X-ray tube 9.

Abstract: A rheumatism scanner has a hand rest arranged between a radiation source and a detector unit and a holder for immobilizing the examined finger joint on the hand rest. The holder is a finger sled which can be fastened to the finger joint at a location remote from the hand rest, and thus remote from the rest of the scanner, and which is provided with a continuous joint recess. After a finger is fixed in the finger sled the finger sled can be brought into engagement with, and positioned exactly at, the hand rest by adjusting and/or fixing elements.

Abstract: An X-ray radioscopic photographing apparatus comprises a top-board support frame for supporting a top board in the body axis direction of an examinee, a stand for supporting the top-board support frame so as to be rotatable about the body axis, a support for holding an X-ray tube unit and an X-ray image intensifier so as to be faced each other, a support member for holding the stand and supporting the support so as to be movable in the body axis direction, and a base portion for supporting the support member tiltably.

Abstract: A portable x-ray bone densitometry system is suitable for transportation between rooms of a medical facility through generally standard doorways. The system has a base portion capable of rolling ambulation by at least one human operator during transportation and selective stabilization on a floor for patient scanning. The apparatus has a patient table extending parallel to a Y-axis of an XYZ coordinate system for supporting a patient at a patient position. The patient table includes a central portion coupled with the base portion, and at least one table leaf coupled with the table central portion, for extending table length parallel to the Y-axis.

Abstract: An X-ray system, in particular for radiological and angiographic methods, has a patient table arranged on a stand under a radiation source. The system further has a detector, which is mounted displaceably under a table plate. A carriage supporting the detector is mounted beneath the table plate such that it can be displaced in a sliding fashion in a longitudinal direction of the table by means of a positioning motor.

Abstract: A method and an x-ray apparatus produces a standard set of x-rays of a person's head while he or she is in a prone position. A movable frame is rigidly connected to a table, such as an operating table, and an extendible arm having a receiver for an x-ray source at a distal end provides for placement of the x-ray source in various, fixed positions. Right and left lateral cephalograms, an anterior-to-posterior cephalogram, and right and left transcranial views of the temporomandibular joint are provided by the fixed-position x-ray source. A panorama x-ray machine is also movably engaged with the frame for taking panographic images. A first set of cephalograms can be taken of a patient on an operating table, and the portable x-ray apparatus can be moved away from the operating table. A surgical treatment objective can be overlaid on the first set of cephalograms.

Abstract: A fixed ring rail and a moving ring rail sandwiching a moving route of a radiation beam irradiating section therebetween, forms a cylindrical passage with a semicircular cross-section having a horizontal floor. Upon that passage is placed a moving floor composed of a continuous series of multiple plates which are connected freely flexible with each other. The moving floor is moved in synchrony with the rotation of radiation beam irradiation section, and, at the same time, the moving ring rail is allowed to rotate in the reverse direction by the same distance. A horizontal floor necessary as an access floor to the treatment bed and to the radiation beam irradiating section is formed regardless of the rotating position of the radiation beam irradiation section, and the patient is surrounded completely to remove him/her of fear.

Abstract: A radiation computed tomography apparatus of this invention includes a couch, a top board which carries the patient and is slidably arranged on the couch, a gantry which has an opening and acquires projection data of a patient by guiding the patient carried on the top board into the opening, reconstruction section for reconstructing the tomographic image of the patient by reconstructing the projection data acquired by the gantry, and adjusting section, arranged on or near the gantry, for adjusting the photographing condition of the patient for obtaining a predetermined tomographic image of the patient.

Abstract: A computed tomography-fluoroscopy method is invented for interventions comprising the steps of combining a floating patient table with a cross-sectional imaging modality for interventions under visual computed tomography control. A handle is installed on the patient table, which is mechanically decoupled from the central control system. During an intervention, the table is brought to a random position, and a single-scan or scan-series is triggered. A light-beam localizer is used for orientation and positioning the single-scan or scan-series.

Abstract: A portable x-ray exposure apparatus carries all components required for the production of an x-ray exposure. Two articulated arms are provided at a carriage, one carrying an x-ray source and the other carrying a flat detector that is formed by a matrix of detector elements. Image signals from the detector are supplied to image electronics in the carriage. The x-ray image generated by the image electronics is reproduced on a monitor or is transmitted to image data networks. The flat detector can be inserted under the patient in the bed.

Abstract: An X-ray examination apparatus includes an X-ray diagnosis apparatus (first imaging area), an X-ray CT apparatus (second imaging area), a bed, and the X-ray diagnosis apparatus and the X-ray CT apparatus are arranged along a path of movement of a top plate of the bed in such a manner that the first and second imaging areas are spaced a predetermined distance from each other in a path of movement of the top plate. There is provided a top plate reciprocal movement control means which through operations of switches moves the top plate forward and backward between a first top plate position where a desired part of the patient is positioned at the first imaging area and a second top plate position where the top plate is spaced from the first top plate position toward the X-ray CT apparatus by a distance corresponding to the distance between the first and second imaging areas so that in the reciprocal movement of the two apparatuses, the top plate can be stopped at the first and second top plate position.

Abstract: A universal radiographic apparatus that allows an operator to select between conventional radiographic mode and linear tomographic mode. In conventional radiographic mode of operation, several automatic modes are provided. An x-ray tube mounted to a tube crane positioned above an elevating table can be accurately controlled in longitudinal and vertical movement, as well as in x-ray tube angulation. In linear tomographic mode, a table bucky is moved laterally in opposition to movement of the tube crane, with angulation keeping the tube aimed at the bucky. In conventional radiographic mode, the system supports an auto bucky mode, where the table bucky automatically tracks tubecrane motion, or an auto table mode, where the tube crane tracks table vertical motion to maintain a fixed SID. In an auto wall mode, the tube crane tracks vertical movement of an associated wall bucky.

Abstract: An x-ray exposure apparatus is freely movable in space without a cable, and allows the electronic production of x-ray images at the bed of a patient. The apparatus includes a cart with an image receiver, such as an amorphous silicon-based solid state detector, to which an image memory on the cart is allocated. Power supply ensues by means of a rechargeable battery that is integrated into the cart.

Abstract: A medical radiological apparatus, such as an x-ray bone densitometry apparatus includes patient positioning aides for accurate patient placement and consistent positioning during a single scanning procedure, or during subsequent procedures. An optical crosshair device helps align the patient's spine along the Y-axis of the apparatus and the patient's hips along the X-axis of the apparatus, perpendicular to the spine. Spinal and forearm positioning aides help the patient maintain consistent, comfortable positions within scans. They also enable repreducibility of patient position in subsequent scans, so that scan results from one scan to another may be compared by a medical practitioner, with reasonable assurance that the respective scan results are not unduly compromised by inconsistent patient placement. The forearm positioning aide consistently places the forearm flat on the patient support table in a proper position parallel to the longitudinal table axis.

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.

Abstract: An x-ray diagnostics system includes an apparatus for producing computed tomography images and an apparatus for producing x-ray fluoroscopic images, and a common support system for an examination subject allocated both to the computed tomography apparatus and to the fluoroscopy apparatus. The support system includes a base movable along a guide rail between a first position allocated to the computed tomography apparatus and a second position allocated to the fluoroscopy apparatus.

Abstract: An x-ray bone densitometry system having an apparatus for positioning body parts is provided. The system includes a patient table having a length extending along a Y-axis and a width extending along an X-axis, a C-arm supporting an x-ray source at one side and an x-ray detector at an opposite side of the table, wherein the source and detector are aligned along a source-detector axis which is transverse to the Y-axis. The source is selectively energized and emits a fan beam of x-rays which conforms to a beam plane which is transverse to the Y-axis and contains the source-detector axis. A forearm positioner is removably supported on the table and includes an arm rest portion positioned at a selected distance along the X-axis from an edge of the table. A hand supporting member is configured to fit within the arm rest portion to maintain the position of a patient's hand in a predetermined shape when the source is energized.

Abstract: A computed tomography apparatus permits tomographic exposures to be produced using a single gantry, but with a number of differently located patient tables. For this purpose, the gantry is mounted so as to be movable on a horizontal surface, so that it can be moved from a standby position into a number of differently-located operating positions. The gantry has a connector mechanism permitting temporary and releasable attachment of the gantry to the patient support table with which it is being used at a given time. The connector mechanism can be controlled by the computed used to generate the tomographic images for finely positioning the gantry relative to the patient table.

Abstract: A device for forming X-ray images, includes an X-ray source for generating an X-ray beam, a photoconductor for converting X-rays into a charge pattern, which photoconductor is provided on a rotationally symmetrically constructed rotatable carrier, a charging device for uniformly charging the surface of the rotating photoconductor prior to the X-ray exposure, a reading unit for converting the charge pattern on the surface of the rotating photoconductor into electric image values after an X-ray exposure, and a housing for the rotating parts which includes an area which is transparent to X-rays.

Abstract: A scintigraphy guided system for stereotaxic localization of breast carcinomas, used in conjunction with a scintillation detection device, of a patient who has been injected with a radioactive substance which preferentially accumulates in carcinomas. The system includes a table, a pair of fenestrated paddles, and a guide means. The table has a top surface, upon which the patient lies in a prone position, and at least one opening through which the patient's breast being examined will pendulously protrude therethrough. A pair of fenestrated paddles are positioned under the bottom surface of the table in the vicinity of the opening, and are moveable relative to each other to compress the patient's breast therebetween. The guide is positioned under the table in the vicinity of the opening. The guide has plurality of moveable sighting guides, each moveable along one of three orthogonal axes, and each sighting guide having a radioactive sighting line located thereon.

Abstract: An irradiation apparatus is provided which comprises a fixed base, an irradiation head for projecting a beam of radiation, and a support structure for the irradiation head. The support structure includes a first support carried by the base and adapted for rotation about a horizontal axis, a second support carried by the first support and adapted for rotation about an axis which extends perpendicular to the horizontal axis and intersects with the horizontal axis to define an isocenter thereat. The irradiation head is fixed to said second support. The irradiation apparatus further comprises a balancing mechanism. The balancing mechanism includes a balance weight fixedly mounted to the second support. The balance weight is positioned such that the second support, the irradiation head, and the balance weight have a center of gravity substantially coincident with the isocenter.

Abstract: A computed tomography apparatus is described which enables an optimum examination of the small intestine region, having a patient support which permits a scan to be conducted of a patient with the patient in a substantially upright, but slightly tilted, position, and a control unit for maintain the gantry containing the x-ray source and detector at the same angle relative to said patient support for all positions of the patient support during a scan. A three-dimensional image reconstruction ensues such that, given a contrast agent fill of hollow organs, the hollow organ is computationally sliced, a contrast agent trunk is computationally removed and the inside of the hollow organ is thus displayed. The hollow organ can be displayed sliced in side-by-side images but can also be displayed in the form of an involution of its inside view.

Abstract: A universal radiographic apparatus that allows an operator to select between conventional radiographic mode and linear tomographic mode. In conventional radiographic mode of operation, several automatic modes are provided. An x-ray tube mounted to a tube crane positioned above an elevating table can be accurately controlled in longitudinal and vertical movement, as well as in x-ray tube angulation. In linear tomographic mode, a table bucky is moved laterally in opposition to movement of the tube crane, with angulation keeping the tube aimed at the bucky. In conventional radiographic mode, the system supports an auto bucky mode, where the table bucky automatically tracks tubecrane motion, or an auto table mode, where the tube crane tracks table vertical motion to maintain a fixed SID. In an auto wall mode, the tube crane tracks vertical movement of an associated wall bucky.

Abstract: An improved immobilization device (10) for specific patients and body parts is provided which insures that a body part is immobilized and can be successively repositioned in the same location during successive treatments. The device (10) is thus particularly applicable for treatment such as radiation therapy where it is important to properly focus treating radiation on a particular locale from treatment-to-treatment. The device (10) preferably includes a frame assembly (16) adapted to rest upon a surface and which supports a preformed, shape-retaining material (12) presenting a concavity (14) substantially conforming with a selected body part to be immobilized. The device (10) when used for head immobilization, may also be provided with stabilizer (98) in the form of an adjustably positioned bite block (134). Hold-down straps (52, 54) can also be employed for further immobilization.

Abstract: A medical apparatus has a patient support table with a seating surface and a mounting side, the apparatus having at least one apparatus part. At least one of the apparatus part or the patient support table (or the seating surface thereof) is adjustable relative to the other so that the apparatus part and the patient support table assume a mounting position wherein those regions of the apparatus part that have a distance of less than 100 cm from the seating surface measured in vertical direction, are spaced from the edge of the patient support table that limits the mounting side no closer than 40 cm measured horizontally and transversely relative to the edge.

Abstract: An x-ray examination apparatus has a stand composed of at least one upright column, a holder for a curved carrier rotatable around a horizontal axis and connected to the column, an x-ray tube and a receptor being secured to the holder, a fastening means for the stand, and an arm that connects the stand to the fastening means. One end of the arm is rotatable around an axis at the fastening means. The apparatus also includes an examination table that is displaceable at least along a center line.

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: An x-ray diagnostics apparatus has a height-adjustable patient support plate vertically mounted on a pedestal, and an x-ray image intensifier adjustably mounted beneath the support plate at the pedestal. The x-ray image intensifier is mounted so as to be adjustable in position between an exposure position and a standby position. In the standby position, the image intensifier does not interfere with lowering of the support plate, which can thus be lowered to a position to more easily accommodate placement of a patient on the support plate. The x-ray image intensifier can be horizontally aligned in the standby position, or can be located outside the region of the support plate.

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 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 tarn, is coupled to electro-mechanical means for simultaneously measuring and monitoring the amount of the displacement.