Abstract: An accessory for fluoroscopy equipment is provided to support the x-ray tube and detector on a pedestal with respect to a patient limb for quantitative bone densitometry measurement. Software loaded into the associated digital imaging fluoroscopy equipment provides necessary correction of the images for the quantitative accuracy needed for bone densitometry. Alternatively, a specialized detector or extremely low form factor image intensifier may be inserted in the pedestal to be used in lieu of the fluoroscopy equipment detector. A similar software correction is performed on an associated computer when a separate detector must be used.

Abstract: An X-ray generator is rotatably attached to one end of a C-shaped arm, and a planar X-ray detector is attached to the other end of the C-shaped arm via a link mechanism capable of freely changing a position/direction of the detector. The X-ray generator is rotated to achieve imaging in an oblique direction, without sliding/rotating the C-shaped arm. The link mechanism is driven in association with the rotation of the X-ray generator so that the X-ray detector may face the X-ray generator. Thus, the limit to the slide angle range can substantially be eliminated without degrading accessibility, and various positioning is achieved exactly and easily.

Abstract: Belt tensioner comprising a support, a roller designed to be in contact with the belt to be tensioned, a roller carrier on which the roller is mounted rotationally and which is mounted on the support so as to move back and forth between two extreme positions, a spring arranged between the support and the roller carrier in such a way as to urge the roller carrier continuously from a first to a second of the two extreme positions, a two-way switch mounted on the support in such a way as to be actuated by the roller carrier to occupy a first state only when the roller carrier is at the first extreme position and to pass into the second state when the roller carrier has left this first extreme position under the action of the spring, and means for mounting the support on a base so that the roller carrier occupies the first extreme position only when the belt is intact and has a predetermined tension.

Abstract: An accessory for fluoroscopy equipment is provided to support the x-ray tube and detector on a pedestal with respect to a patient limb for quantitative bone densitometry measurement. Software loaded into the associated digital imaging fluoroscopy equipment provides necessary correction of the images for the quantitative accuracy needed for bone densitometry. Alternatively, a specialized detector or extremely low form factor image intensifier may be inserted in the pedestal to be used in lieu of the fluoroscopy equipment detector. A similar software correction is performed on an associated computer when a separate detector must be used.

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 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: A radiographic imaging system including a solid state x-ray imager is disclosed. An x-ray tube is supported in a vertical x-ray tube support system alternately or in addition to a overhead angulating x-ray tube support system. A solid state x-ray imager is supported in a wall stand alternately or in addition to an angulating table stand. Associated sensors sense the position of the solid state x-ray imager, and a position controller adjusts the position of the x-ray tube such that the x-ray tube is positioned at the center of the solid state x-ray imager. Readout circuitry receives the analog image from the solid state x-ray imager and transmits the corresponding digital information to a digital processor for image creation or manipulation. The digital image may than be displayed on a digital imager acquisition and display system.

Abstract: An X-ray diagnostic device has a supporting apparatus for the object being examined, a signal processing device for producing a tomogram or a three-dimensional image of the object being examined and a reproductive apparatus for displaying the tomogram or three-dimensional image. The supporting apparatus has a supporting plate with a movement device for the supporting plate in order to move the plate about an axis of rotation with the movement angle being greater than 10° and the movement device has both a drive device and a sensor for detecting the movement of the supporting plate about the axis of rotation.

Abstract: An X-ray imaging detector for generating X-ray transmission image in a form of electric signal, for use in X-ray imaging apparatus which comprises the X-ray imaging detector, an X-ray generator and a fixing means for fixedly positioning an object to be examined between the X-ray generator and the X-ray imaging detector mounted thereon, whereby X-ray imaging is performed by moving the X-ray generator and the X-ray imaging detector both interposing the object fixedly positioned by the fixing means while keeping facing each other.

Abstract: A medical x-ray system, such as an angiography system has an x-ray tube that emits and a radiation receiver, which are arranged at a C-arm, a stand supporting the C-arm, which has an arm that is rotatably mounted at one end around a stationary axis, and a holding device supporting the C-arm, which is rotatably mounted at the other end of the stand, and a patient table The stand is mounted via its arm at the ceiling and is mounted such that the rotational axis of the arm is arranged substantially in alignment with the center line of the patient table.

Abstract: In order to effectively use an angiography arm and a CT gantry and improve examination efficiency, angiographic imaging of a subject Ha in an angiography room Ra and CT imaging of a subject Hc in a CT room Rc are independently performed in one mode. In another, a CT gantry 40 is moved to the angiography room Ra with an X-ray protection door D open, to alternately perform angiographic imaging and CT imaging on the subject Ha in the angiography room Ra in a cycle of, for example, five minutes.

Abstract: The invention relates to an X-ray device which includes an X-ray source (2) and an X-ray detector (3) which are mounted at a respective end of a common holding device (12), the holding device (12) being attached to the room (9) by way of a supporting device (18). In order to realize a more flexible construction of such X-ray devices that are widely used and are usually provided with a holding device (12) in the form of a C-arm and nevertheless maintain a high positioning accuracy, the invention proposes to compose the supporting device (18) of a plurality of hinged, serially interconnected supporting members (15, 16, 17). The supporting device is to be formed notably by a serial manipulator, for example, a conventional robot arm.

Abstract: The invention relates to an X-ray examination apparatus which includes a patient table (1), a fluoroscopy image intensifier (61) which is displaceable in the longitudinal direction of the table on a first carriage (6), an overtable X-ray source (2) which is aligned with respect thereto and is coupled to the first carriage, and an image recording means (71) which is displaceable on a second carriage (7). The second carriage can quickly move to a parking position and from this parking position to an exposure position in that the second carriage is displaceable in the longitudinal direction of the table, independently of the first carriage, and in that there is provided a drive system (8,9) which displaces the two carriages in synchronism in a first mode of operation and displaces the second carriage relative to the first carriage in a second mode of operation.

Abstract: Radiological apparatus, such as bone densitometry measurement systems that utilize a penetrating radiation source, such as an x-ray source is provided. The apparatus includes a patient table with a length extending along a Y-axis and a width extending along an X-axis and a C-arm supporting, for example, an x-ray source at one side of the table and an x-ray detector at an opposite side of the table such that the source and detector are aligned along a source-detector axis. The source is energized to emit a fan beam of x-rays which conform to a beam plane which is transverse to the Y-axis and contains the source-detector axis. Either, or both, the C-arm or the table are selectively movable relative to the other along the X-axis, along the Y-axis, and along a Z-axis which is transverse to both the X-axis and the Y-axis, so that selected regions of a patient on the table can be selectively scanned with the fan beam of X-rays.

Abstract: A virtual C-arm support system 40 is used in a radiographic imaging apparatus of the type including an x-ray source 44 and an x-ray detector 48. The support system includes a first positioning system 42 operatively connected to the x-ray source for selectively positioning the x-ray source in a range of first orientations 120, 140, 170 relative to the examination region E. A second positioning system 46 is operatively connected to the x-ray detector 48 for selectively positioning the x-ray detector in a range of second orientations 122, 142, 172 relative to the examination region E. A control unit 60 is in operative command of at least one of the first and second positioning systems to maintain a predetermined spatial relationship between the x-ray source and the detector for each of the ranges of the first and second orientations relative to the examination region.

Abstract: A determinate positioner assembly comprises a helical cam, such as a threaded lead screw, a follower element which continuously contacts the lead screw in a predetermined number of places for a determinate condition (neither over- nor underconstrained), an elastic member connecting the follower element to the leadscrew, and a driven element. The elastic member maintains continuous contact between the follower element and the cam, yet the combination of the elastic member and the follower element exert substantially zero net force on the cam in the x and y directions. The follower element is attached to the driven element with pivot structures which transmit axial movement from the follower element to the driven element and permit the follower element to “float” in the x and y directions while prohibiting its rotation about the x, y and z axes.

Abstract: A second C-shaped arm 5 is provided along an inner periphery of a first C-shaped arm 4, and a slide operation of the first C-shaped arm 4 is controlled and a slide operation of the second C-shaped arm 5 is controlled along the inner periphery of the first C-shaped arm 4. Accordingly, wide angle setting can be achieved to thus enable various positionings. Further, the second C-shaped arm 5 is controlled to be rotated over 360.degree. along the inner periphery of the first C-shaped arm 4 and an X-ray generator 6 is controlled to irradiate an X-ray intermittently or continuously every predetermined angle, so that three dimensional reconstruction can be accomplished based on image information every angle. As a result, three dimensional radioscopic images, etc. can be formed based on necessary and sufficient image information, whereby the X-ray diagnostic apparatus can be used like an X-ray CT apparatus.

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: A frame (A) of a diagnostic imaging device such as a CT scanner or an MRI device has a bore defining a patient examination region (12). A first x-ray source (B) is mounted to a frame (C) for rotation around the examination region (12). An arc of first radiation detectors (14) detects x-rays which have traversed the examination region. A first image reconstruction processor (18) reconstructs a tomographic image representation from signals generated by the first radiation detectors. A fluoroscopy device (D) is mechanically coupled to the diagnostic scanner for generating and displaying at least substantially real-time fluoroscopic projection image representations on a display monitor (60). A second x-ray source (32) transmits x-rays to an amorphous silicon flat panel radiation detector (36). A second image reconstruction processor (58) reconstructs the fluoroscopic projection image representations from signals generated by the flat panel radiation detector (36).

Abstract: A X-ray photographing apparatus is suitable for use for a doctor to take X-ray photographing while performing medical treatment, and is capable of positioning a patient at a height at which operations are made ease in accordance with contents of medical treatment.

Abstract: A method of calibrating an ultrasound bone analysis apparatus having a pair of transducer assemblies. Each transducer assembly has a transducer and a coupling pad, and is movable relative to the other so that a face of each pad can be moved to a position in which they mutually contact and to a position where the faces contact body parts. The method according to the present application includes transmitting an ultrasound signal from one transducer and receiving a signal corresponding to the transmitted ultrasound signal through the other transducer when the transducer assemblies are in the first position and the second position. A time for the ultrasound signal to pass through the body part is determined, and a width of the body part based on positions of the transducers is determined. Then, using the time and width values a speed of sound of the ultrasound signal passing through the body part with squish compensation is calculated.

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 gantry (A) has a bore defining a first patient examination region (12). A first x-ray source (B) is mounted to a frame (C) for rotation around the examination region (12). An arc of first radiation detectors (14) detects x-rays which have traversed the examination region. A first image reconstruction processor (18) reconstructs a tomographic image representation from signals generated by the first radiation detectors. An angiographic device (D) is positioned remote from the gantry along a longitudinal axis (25) for generating and displaying angiographic image representations on a display monitor (46). A second examination region is defined along the longitudinal axis (25) between a second x-ray source (36) and an image intensifier tube (38). A second processor (44) reconstructs the angiographic projection image representations from signals generated by the image intensifier tube (38).

Abstract: An arm mechanism includes a drive control mechanism that uses an end effector coordinate system and has an end effector drive control mechanism. The drive control mechanism includes an end effector rotational drive control mechanism and an end effector coordinate system translational drive control mechanism. The rotational drive control mechanism has three rotational actuators for driving end effector rotation about each axis separately. The end effector coordinate system translational drive control mechanism has an end effector coordinate system translational actuator to drive translational motion of the object. The drive control mechanism further includes an orientation maintenance mechanism that maintains the orientation of the target object on the absolute coordinate system and two absolute coordinate system translational actuators supported on the orientation maintenance mechanism for providing translational motion of the object along two orthogonal axes on the absolute coordinate system.

Abstract: A whole body x-ray bone densitometry system includes a table extending parallel to a Y-axis of an XYZ coordinate system for supporting a patient at a patient position; an x-ray source for emitting a narrow angle fan beam of x-rays to irradiate at any one time a scan line which is transverse to the Y-axis and is substantially shorter than the width of a body cross-section of a typical adult patient occupying the patient position. An x-ray detector is aligned with the source along a source-detector axis which is transverse to the Y-axis, for receiving x-rays from the source within the angle of the fan beam after passage thereof through the patient position. The detector has a number of detecting elements arranged along a direction transverse to the Y-axis and to the source-detector axis.

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: Single and dual-energy x-ray images are obtained in a single scanning procedure, which allows measurement of bone density from the scan information acquired at both energy levels and high resolution digital geometric images from one of the two energy level scan sets. Densitometric and geometric measurements taken from multiple projections may be combined to create three-dimensional densitometric and tomographic images. An interface device allow an operator to select one of a plurality of scanning sequences which correspond to scanning a set of regions of interest in the patient.

Abstract: A device for inspecting a cargo container such as a motor vehicle or freight pallet, with penetrating radiation. A source of penetrating radiation is mounted on a moveable bed, thereby allowing a beam of penetrating radiation to sweep the large container. At least one detector is also mounted on the bed, ether on the side of the source or on a boom, so that, as the beam is scanned across the container, the container and any contents of the container are characterized by transmitted or scattered radiation, or both.

Abstract: A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment.

Abstract: An x-ray bone densitometry system includes a table having a movable support surface configured to support a patient, an x-ray source and an x-ray detector positioned on opposite sides of said support surface so that a patient positioned on the support surface is between the x-ray source and the x-ray detector, the x-ray source and the x-ray detector being aligned in a fixed relationship relative to each other such that x-rays emitted from the source impinge the x-ray detector, the x-rays that impinge the detector producing dual energy scan data, a processor coupled to the x-ray source, the x-ray detector and the table and configured to actuate movement of said support surface, to receive the dual energy scan data, to extract from the dual energy scan data, dual energy image data and single energy image data, and to store the dual energy and the single energy image data in respective data records for selective display, and at least one display connected to the processor for displaying the dual energy and/or th

Abstract: A compact peripheral densitometer allows multi-use imaging of the foot and arm by means by simple rotation of the entire unit to be supported on different portions of its base at either of two angles. A slot in the unit may thus open upward for foot imaging when the unit is placed on the ground or open sideways for arm imaging with the unit resting on a table or the like.

Abstract: The system of the present invention uses x-rays having a narrow fan beam to scan patients for bone density and soft tissue body composition measurement and imaging. In addition to single pass scanning of body parts such as the spine, hip and forearm, a method for multiple pass whole body scanning is provided. The system includes a movable scan table configured to support a patient and a C-arm associated with the table. The C-arm is configured to support an x-ray source in opposite to an x-ray detector at opposite sides of the patient. A scanning mechanism is provided to move the scan table and C-arm to scan the patient with overlapping adjacent x-ray fan beams in successive scan passes along the length of the patient. A scan pass combination scheme that blends areas of overlap is employed to compensate errors related to height dependency. The blending is performed according to the height of the part of patient scanned in the overlap and the distance from the edge of the scan pass.

Abstract: A digital real time x-ray system includes a lead room and a control room. The lead room houses a conventional x-ray source and a microfocus x-ray source and a manipulator for the microfocus x-ray source. The manipulator includes a first bracket which supports the microfocus x-ray source, a second bracket which supports an inspection tray and a third bracket which supports an image intensifier. The first, second and third brackets are controlled for single axis movement and the inspection tray is controlled for two axis movement to allow for accurate positioning of parts being x-rayed.

Abstract: An X-ray examining system includes a mobile vehicle; and an X-ray examining apparatus for ascertaining contents of an object. The examining apparatus includes a supporting structure mounted on the mobile vehicle; and X-ray source for generating a fan-shaped X-ray and being carried by the vehicle; and an X-ray detector mounted on the supporting structure. The X-ray examining system is adapted to travel along the object to be examined while irradiating the object and detecting the X-rays after passage thereof through the object.

Abstract: Best scan parametric values of a x-ray bone densitometry scanning system for a particular patient is selected according to a thickness of the patient. An operator initially selects scan parametric values of a fast mode scan which is the recommended default, and then commences the fast mode scan. At the initial portion of the scan, the x-ray thickness of the patient is measured. If the measured x-ray thickness is not greater than a predetermined limit of the fast mode scan, the fast mode scan is continued. If the measured x-ray thickness is greater than the predetermined limit of the fast mode scan, the x-rays are turned off, and the operator is given a choice of continuing with the fast mode scan or restarting with a slower mode scan. If the operator selection is to continue, the fast mode scan is continued. If the operator selects restarting, a slower mode scan is commenced.

Abstract: In an X-ray diagnostic installation having a positioning arrangement for a radiation emitter and for a radiation receiver, a first positioning apparatus is provided for the radiation emitter and a second positioning apparatus is provided for the radiation receiver. The positioning apparatuses have a common reference axis. By a coupling the radiation emitter to the first positioning apparatus, the reference beam of a beam of radiation emitted by the radiation emitter intersects the common reference axis at an acute angle, and strikes the radiation receiver at least approximately centrally.

Abstract: A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment.

Abstract: A C-arm apparatus. An X-ray imaging system is coupled to a C-arm, including an X-ray source and an image receptor mounted upon opposing locations, respectively on the C-arm. The C-arm is mass balanced about its axis of orbital rotation and is pivotally coupled to an articulating arm assembly supported upon a wheeled support base. The mass balance enables repositioning of the X-ray imaging system between an anterior-posterior view and an orthogonal lateral view with a single, orbital movement of the C-arm which also causes the views to define an imaging isocenter. The C-arm is preferably miniaturized to an approximate diameter of twenty-eight inches with a source-to-image distance of approximately fourteen inches.

Abstract: The invention relates to a mammography unit, comprising a C-arm which is mounted on a turning axle (2) adapted to be vertically (arrow C) movable on an upright column (1) and which is pivotable about the turning axle (2) (arrow D), one leg (3) of said C-arm being provided with an X-ray tube (4) and the opposite leg (5) with an image receptor, and said unit further comprising a compression element (6) for compressing the breast to be imaged against the image receptor. The C-arm is further adapted to move linearly (arrow A) in substantially radial directions in the direction transverse to the turning axle (2). The unit comprises elements (20, 21) for controlling the linear motorized movement of the C-arm (arrow A) and the relative compressive movement of the compression element (6) (arrow B) to occur simultaneously at a substantially equal speed for compressing the breast between the compression element and the image receptor.

Abstract: An apparatus for X-ray fluoroscopy and fluorography includes not only a supporting column for supporting X-ray radiating and detecting devices opposite each other, a top board supporting member supporting a top board above the X-ray detecting device, and a base for supporting the top board supporting member which is movable vertically and rotatable around a horizontal axis, but also a rotary member which is disposed between the top board supporting member and the base and is rotatable around the horizontal axis, a device for rotationally driving the rotary member, guide rails extending vertically and attached to a side surface of the rotary member facing the base, a parallel-moving base attached to the top board supporting member and movable along the guide rails, and a parallel-moving device for moving the parallel-moving base vertically.

Abstract: An x-ray inspection machine particularly suited for use on an assembly line has a narrow footprint produced by mounting opposed x-ray tube and camera on independently movable stages locked together by way of a central computer rather than a physical member. The stages are aligned by using position sensors at home positions and a fiduciary mark on the part to be inspected. The independent motion of the stages permits a limited range of angled inspections to be obtained without additional angulation mechanisms.

Abstract: A mammograph is disclosed which includes: a positioning device defining a rotation axis, the positioning device including: an arm .beta..sub.2 ; breast support plate connected to the arm .beta..sub.2 ; a movement device connected to the arm .beta..sub.2 ; and a digital detector connected to the movement device, the digital detector having a detection surface defining a plane .pi.; an arm .beta..sub.1 pivotally connected to the positioning device for pivotally rotating said arm .beta..sub.1 around said rotation axis, the arm .beta..sub.1 having an end; and an X-ray tube movably attached to the end of the arm .beta..sub.1, the X-ray tube defining a beam axis .delta. and being pivotable about the rotation axis so as to move in a first direction that is orthogonal with the rotation axis and direct an X-ray beam, emitted by the X-ray tube, along the beam axis .delta.. Pivoting the X-ray tube within an angle .+-..alpha. causes the movement device to move the digital detector laterally within the plane .pi.

Abstract: A portable X-ray imaging machine includes a X-ray source and a X-ray image receptor. The source and the receptor are movable simultaneously along a line parallel to a patient reclined on the top of an examination table. The X-ray machine is readily transportable between and fixedly secured in a plurality of rooms in a hospital or other medical facility.

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: This invention relates to a bi-plane X-ray imaging medical system having two radiation axis with a common isocenter for simultaneous viewing of a targeted object in two planes for three dimensional orientation, these two radiation axes can be rotated about the isocenter, thus rotating these two planes individually or simultaneously and varying the angle between them for most advantageous imaging. And further, varying the angle allows for larger opening for access to the patient during a surgery or for loading/unloading the patient.

Abstract: An X-ray examination apparatus, including a patient table which is pivotable about a first axis, a spot film device which is arranged over the table top of the patient table and which is displaceable parallel to the table top by means of a transport device, and also an X-ray source which is coupled to the transport device in order to form an X-ray beam. The use of the X-ray source, either underneath the table top for use with the spot film device, or over the table top for overtable X-ray exposures, positioning is possible in that the X-ray source is pivotable about a second axis which is connected to the transport device and which extends parallel to the first axis.

Abstract: Accordingly, the present invention provides an x-ray tomography apparatus having a patient table, x-ray tomography components located around the patient table and in an imaginary plane which intersects the table, and structure for supporting the table and tomography components and including apparatus for moving the tomography components along at least a portion of the table. In an alternate embodiment, an x-ray tomography apparatus includes an annular x-ray tomography system for continuously rotating around a patient, which structure has an electrically powered x-ray source and battery power for supplying electrical power to the x-ray source.

Abstract: A scanning radiographic densitometer constructs a broad area, two dimensional projection image from a combination of a set of smaller fan beam scans by tilting the axis of each such smaller scan to construct an effective larger fan beam to reduce artifacts caused by height dependant overlap of the multiple fan beams. The data is projected to a non-planar image surface to eliminate local area distortion such as may cause error in density measurements and to permit some overlap without height sensitive effects.