Abstract: This invention relates to an orbital aiming device for aiming a puncturing instrument to a targeted object for use with an isocentric mammo fluoro X-ray apparatus.The device comprises a guide supporting the puncturing instrument so that it aims at the isocenter of the mammo X-ray apparatus, which guide is mounted on an arcuate member orbitally movable and supported by a swiveling arm swiveling about an axis passing through the isocenter so that the puncturing instrument can be pivoted about the isocenter around two rotational axis for real-time selection of the penetration path, which path can be from any direction around a patient's breast.

Abstract: This invention relates to an orbital aiming device for aiming a puncturing instrument to a targeted object for use with a fluoro X-ray apparatus isocentric in at least one direction.The orbital aiming device in order to offer most advantages is isocentric about two rotational axes which point of intersection defines its isocenter and is disposed in relation to the fluoro X-ray apparatus so that its isocenter coincides with the isocenter of the X-ray apparatus.The device comprises an arm for supporting the puncturing instrument so that it aims to the isocenter, which arm is orbitaly moveable on arcuate rails for pivoting the puncturing instrument about the isocenter around one of the two rotational axes the arcuate rails are supported by a supporting means in a rotational relationship for pivoting the puncturing instrument about the isocenter around the second rotational axis.

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: A mobile X-ray apparatus for use in X-ray in diagnostic examinations comprising a base on wheels having an arm structure mounted thereon for supporting an X-ray tube, wherein this arm structure comprises a first structure of telescopic construction utilizing a pulley principle for an extended vertical travel of the X-ray tube and yet compactness, and further including a constant spring mechanism for allowing manual positioning, a second structure moveably mounted on the first structure for both horizontal and vertical displacement of the X-ray tube which structure includes a parallelogram and a horizontal telescopic member, a steering assist mechanism including motors providing power to each wheel of one pair of the wheels and being independently energized so that a power differential can be created as desired to assist in turning the apparatus. This disclosure further includes a brake mechanism for effective control of positioning of any moveable structure of an X-ray apparatus.

Abstract: A C-arm diagnostic equipment is disclosed, which equipment provided counterbalanced variable distance between an image source and an image receptor; an increased range of orbital rotation of the C-arm accomplished by a novel arc-in-the arc structure, which structure is counterbalanced for effective control of the orbital rotation; a suspension means with a counterbalanced means for the C-arm to be used as a ceiling suspended C-arm diagnostic equipment, which suspension means are moveably mounted on ceiling rails laterally displaced from, and not extending over, a patient positioned on an examination table and are linearly displaceable along these rails in a direction generally parallel to the lengthwise axis of the examination table.

Abstract: A table positioner which provides total imaging coverage of the patient in horizontal, vertical and in tilt positions is disclosed for use in X-ray diagnostic examinations. The table positioner is constructed from modules which modules, depending on a particular examination procedure, are assembled together so as to provide necessary positioning. Further, this modular table positioner is compact enough to be installed in a small room or a mobile van.

Abstract: An X-ray examination apparatus comprising: a base assembly including a pivotable and vertically displaceable frame, a first actuating means for pivotal movement of said frame about a horizontal axis and a second actuating means for vertical movement of said frame, computer controls for controlling said first and second actuating means individually and in combination, two parallel rail systems supported by the frame and having two carriages mounted respectively thereon, which carriages can move in unison or individually, one of said carriages supporting a C- or U-shaped carriage for supporting an X-ray source and image receptor in a rotatable arrangement about an axis parallel to said horizontal axis and the other of said carriage having an overhanging support secured thereto, which support includes a dual action mechanism for supporting a patient table in an arrangement providing its vertical movement relative to the frame and its pivoting movement about an axis parallel to its longitudinal axis.

Abstract: An X-ray examination apparatus includes a device for positioning an X-ray film changer with respect to an image intensifier away from a position in front of the image intensifier for producing X-ray images to a position on a side of the image intensifier when not in use. The device combines a rotational and shifting movement so that the film changer can be positioned on the side of the image intensifier very close to the same without impeding access to a patient.

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: A C-arm X-ray diagnostic equipment is disclosed which C-arm provides: an increased range of orbital rotation; a longer range of vertical travel of C-arm from low to high vertical positions; safer counter balanced vertical movement; the horizontal axis of rotation drawn through the isocenter of the C-arm for a multiple of X-ray beam projections without repositioning of the patient being imaged; remotely controlled passive locking arrangement for securing the C-arm firmly in any necessary position for safety; remotely controlled C-arm positioning.A novel non-uniform curvature of C-arm where the inner outline is other than semicircular is selected for structural strength.

Abstract: A pivot motor drive for actuating a grid to move over the X-ray film in the Bucky during an X-ray exposure, comprising (a) an electromagnet, (b) a pivoting beam mounted thereon and acting directly on the grid and said beam displacing said grid in the presence of the magnetic field, and (c) a progressive spring acting on said grid and causing said grid and said beam to return to the original position in the absence of the magnetic field.

Abstract: An improved radiological device comprising a grid cabinet and an X-ray cassette tray, including: means for cassette size sensing disposed in the cabinet and allowing for automatic collimation of an X-ray beam by a direct mechanical linkage of sensing components with shutter controls; means for centering a cassette including two pivotal arms pivoting about respective points positioned in two different places on the tray; ball rolling slides for all linear movements; means for actuating a grid frame being very compact and disposed in the back of the cabinet and, firstly, accelerating the grid substantially instantaneously to high speeds for very short exposure times; secondly, slowing the grid down for medium exposure times; and thirdly, reversing the grid travel direction at random points.