Abstract: An X-ray system has radiation carriage for an X-ray source and receptor and a table carriage for a patient. The radiation carriage moves along a circular track on a primary carriage which in turn is on a beam rotating on a standard so that a patient at the isocenter of the two circular movements can be X-rayed at adjusted angles from spherical loci. The beam also pivotally supports a table carriage so that as the patient is inclined with the table the adjusted angle of the radiation is maintained.

Abstract: The invention concerns a simplified control tilting examination frame. According to the invention, the frame comprises a table, a base and a pivoting support while the control system of the displacement of the table with respect to the support is servo-controlled by a representative signal of the tilting of the said pivoting support, in order to prevent under any circumstances one end of the table from touching the ground. The invention applies to medical radiology.

Abstract: A table positioner is disclosed for use with radiographic equipment to cause smooth translating and continuous angular movement of the table in reciprocal directions from a lengthwise horizontal position to lengthwise vertical positions. When in a lengthwise horizontal position, the positioner causes the top of the table to have a sufficiently low vertical height above floor level to enhance utilization of the radiographic equipment for imaging of a patient on the table, and yet still allows lengthwise angular movement of the table from this low horizontal positioning to full vertical positioning with the then lower end of the table being maintained in a position close to floor level but precluding floor contact during any portion of table movement.

Abstract: The invention improves the safety in the case of breakage of an endless chain whereby a part of an X-ray apparatus table top is supported and displaced by a chain. The chain is accommodated inside a rigid guide having a slot through which the chain is coupled to the table top. The guide is constructed so that the chain has only a limited freedom of movement on all sides.

Abstract: First and second arms are supported, rotatable to each other and in the shape of X, by a shaft. The lower end of the first arm is on the side of a scan gantry and rotatably supported on a base by means of a rotation fulcrum. The lower end of the second arm and upper ends of the first and second arms are supported by base and frame rails through movement fulcrums to be rotatable in relation to and movable along the rails. A tension spring is stretched between the second arm and a mounting frame to urge the mounting frame toward the scan gantry. Stoppers are arranged in the frame rails to prevent the movement fulcrums of the first and second arms from moving from their predetermined positions in the direction of their separating from the scan gantry. The first arms are rotated and erected by a hydraulic cylinder.

Abstract: The invention relates to a radiodiagnostic installation with a motor-adjustable patient table, a motor-adjustable radiation diaphragm, and an image intensifier television system for image reproduction. With the monitor of the image intensifier television system a light pen is associated for the entry of certain sites on the monitor into a memory. Connected to the memory are control circuits for the motors of the patient table and of the primary radiation diaphragm, which are designed so that the patient table and the primary radiation diaphragm are adjusted in accordance with the respective image field on the monitor to which the light pen points.

Abstract: The invention relates to an X-ray unit which can be swivelled about a horizontal axis. The table is moved by a lever arrangement in which the longitudinal position of the table is a function of the swivel angle so that a greater low head position can be achieved.

Abstract: A radiotherapy treatment table is formed as a mobile table having a vertically movable patient supporting plane freely suspended at one end, all the wheels of said table being individually or jointly driven by a motor and turnable relative to the wheeled frame, a positioning and steering device being adapted to sense the position of the treatment table relative to a radiotherapy station and to drive and steer the table to a desired position in response to a measured actual position. The positioning and steering device may comprise sensors for inductively, optically or ultrasonically sensing the actual position of the table in an inductively, optically or ultrasonically marked coordinate system, and may also comprise a computer for controlling the positioning of the table and any preprogrammed movements relative to a treatment isocenter that may be necessary during the treatment.

Abstract: A life support stretcher bed includes an undercarriage which is supported on the ground for movement from one location to another by respective wheels which are commonly lockable by a braking mechanism to prevent movement of the undercarriage from a selected location. A platform is supported on the undercarriage for raising and lowering relative thereto by means of a hydraulically operating lifting arrangement which includes a control arrangement mounted on the undercarriage. An intraaortic balloon pump unit that is supported on the ground by respective casters for movement in any direction along the ground is connected to the undercarriage for shared movement therewith at a predetermined distance from the undercarriage. The platform includes straps for holding the patient supported in a supine position on the platform in such position, and side rails which can be moved from a position above the platform into an out-of-the way position.

Abstract: A patient treatment table has a base and a table plate upon which a patient may be positioned. A spine having two bars supports at least one part of the table. The bars are so mounted that they may be shifted towards and away from each other beneath the table plate while keeping the table plate unmoved.

Abstract: A radiotransparent table for supporting a patient in an X-radiography zone slides in linear bearings on a standard. The table is motor driven through a cable or like linkage anchored at the head and foot of the table and passing over the motor drive roll and an idler roll located on the stand between the drive roll and zone so that substantially the full length of the table can be moved to the radiography zone. The head and foot anchors are unobstructed in movement toward the drive roll. Preferably there are two symmetrical sets of rolls, anchors and linkages at opposite sides of the table applying neutralizing torques to the table.

Abstract: The invention provides a retractable cassette holder for a combined X ray and radiographic examination apparatus. This cassette holder forms a mobile assembly comprising means for forming a recess with variable dimensions in the middle thereof and means for causing the barrel of a luminance amplifier to slide within this recess.

Abstract: The invention relates to a patient table for an X-ray apparatus. The table has a table top which is displaceable in the longitudinal direction thereof. The table top is coupled to an endless chain which is guided by sprockets. One sprocket is driven by a motor. The coupling between the table top and the chain is realized by means of comb-like coupling elements which engage the chain. The coupling elements are arranged so as to be offset with respect to one another in the longitudinal direction of the table top.

Abstract: An operating table for operations on extended extremities of patients includes a frame 10, a support plate 18 and a counterbar 32 at one end of the support plate 18 for propping the patient. Two vertical receiving openings 64, in which the counterbar 32 can be selectively inserted, are arranged outwardly from the longitudinal middle plane of the support plate 18, whereby the operation field is increased for better transmission of X-rays and whereby the counterbar 32 may also be used as a groin support for a patient lying on his side. The vertical receiving openings 64 are formed in an adaptor 84 which also similarly has transversely directed receiving openings 92,94 for supplemental devices laterally attached to the end of the support plate 18 and longitudinally directed receiving openings 104,106 for supplemental plates which effect a lengthening of the support plate 18.

Abstract: A patient-bearing panel is displaceable in a longitudinal direction (y--y) under conditions which enable the panel to be made entirely of material which is a poor absorber of X-rays and which is also uniform in its absorption. The panel has an end overhanging a first roller by an amount which varies as a function of its longitudinal displacement.

Abstract: X-ray apparatus has a rotor on a standard, the rotor including two rings, one fixed on the rotor and the other rotating on an axis normal to the rotor axis. Posts on the rotating ring parallel to its axis carry an X-ray tube and an X-ray receptor on a radiation axis intersecting the ring axis at an isocenter and capable of angulation about the isocenter. A patient table is slidingly mounted on the fixed rotor ring extending through apertures in both rings. Turning of the rotor tilts the patient table in a head to foot direction while turning of the rotating ring revolves the patient on his own axis.

Abstract: Reclining radiographic wall table assembly including a wall mounted rack, a wheeled bed table having floor engaging wheels mounted at one end of the table and a rack engaging member at the other for engaging the wall mounted rack, and a control mechanism providing control of the positioning of the table so that it is selectively oriented either horizontally, vertically, or in a semi-reclining position intermediate the first two positions. The table is also provided with an ankle holding attachment mounted on the surface of the table near the rack engaging member for securing a patient onto the table when the table is in an inclined or vertical position, the patient then being inverted while being X-rayed for determining an amount of the scoliotic bend capable of being attributed to the gravitational pull upon the patient were the patient standing in an essentially upright position.

Abstract: A device for mounting accessories for a patient support apparatus which has a frameless x-ray permeable platform. In order to be able to apply accessories in the head region of the patient and still be able to make radiographs in this region, the device includes a stirrup member having a shape which is matched to the exterior edge contour of the region of the platform for the head region, gripping members applied on lateral portions of the stirrup member and an arrangement for urging the lateral portions together to clamp the gripping members onto the edge of the platform after the device has been telescoped thereon. The device also includes at least one mounting track or rail to provide a base for mounting the accessories.

Abstract: In the case of a patient support apparatus, a support, rotatably mounted about a horizontal spatial axis, is height-, longitudinally- and laterally-adjustable relative to an x-ray apparatus, whereby at least the height adjustment proceeds by a motor. In order, in the case of a lengthwise displacement of the patient support, to automatically conduct such a height adjustment that the isocenter moves along a path--capable of being established in advance--along the support, it is provided in accordance with the disclosure that a processor constantly determines, for the actual coordinates of the spatial axis and of the tilt angle .alpha. of the support, the height of a desired examination point and compares it with the height of the isocenter. A follow-up control coupled with the processor ensures a constant adaptation of these two values.

Abstract: An X-ray table having an elevator mounted on a base for vertical movement, an intermediate support mounted on the elevator for moving longitudinally, and a carriage with a patient cradle on it for moving longitudinally on the support. A pair of gas springs mounted at the forward end of the table provides a constant upward force to compensate for weight of the elevator and the cantilevered load which is exerted as the patient cradle is extended in the longitudinal direction. There are individual servomotors for driving the support and the cradle. The intermediate support drive includes a drive bar and switch assemblies for sensing any force of more than 25 lbs., for example, exerted on the patient or patient cradle and for disengaging the servodrives in response thereto. The cradle drive incorporates a zero-backlash longitudinal friction drive which includes a harmonic drive unit to achieve accurate positioning of the patient.

Abstract: An emergency X-ray examination table has a top assembly comprising a primary top and a secondary top which is slidable on the primary top in the lengthwise direction of the table. The patient lies on the slidable top which is extendible beyond the limits of the primary top so that the head of the patient may be closely examined. The table top assembly is tiltable along a transverse axis. A latching mechanism prevents the secondary top from sliding downwardly when the table top assembly is tilted. A locking mechanism prevents the table top assembly from being tilted unless the latching mechanism has been placed in latched position. Another locking mechanism prevents the latching mechanism from being actuated unless the slidable top is in a position to be latched.

Abstract: The invention relates to an X-ray examination apparatus comprising a frame and a patient examination table which is slidably connected to the frame. This apparatus is particularly suitable for making Bucky exposures. The apparatus offers the advantage that it is very accessible from the sides, without mounting the guide rail (the guide rail supports the stand which supports the X-ray source) on the wall or the ceiling. To this end, a column which supports the X-ray source is movable in a longitudinal direction along a guide rail. The guide rail, in turn, is movable in the longitudinal direction on a carriage. The carriage, in turn, is movable in the longitudinal direction on a stationary frame. This results in a telescopic movement of the movable parts and in a displacement range which is larger than the width of the frame.

Abstract: A head holder for an X-ray subject uses a rigid U-shaped receptacle having an angulated cervical extension that fastens to a patient supporting cradle. A head restraint sheet that may be preformed to a U-shape has a tie-down strap fastened to it is wrapped about the bottom and sides of a flexible foam preformed U-shaped liner that has notches for accommodating the subject's ears. The sheet and liner are deposited in the U-shaped rigid receptacle with the head of the subject in the liner and the strap ends crossed over the forehead and attached to "Velcro" pile that is fixed on the outside of the receptacle. The resilient foam liner and flexible sheet act as a pressure feedback system which restores a head to its initial relaxed position if the head has moved. A wedge is inserted between the flexible sheet and receptacle bottom to tilt the head of the subject.

Abstract: The zone of movement of the reciprocating carriage of a flatbed knitting machine is guarded, to prevent injury to the operator, by a light barrier set up between each end of the machine and the carriage. Only the barrier on that side of the carriage towards which the carriage is moving at any given time is effective to trigger braking of the carriage and stopping of the machine if the barrier is penetrated. The carriage may carry a double-sided reflector with combined light emitter/receiver units positioned at each end of the machine.

Abstract: In an exemplary embodiment in order to obstruct the examination of the patient as little as possible and simultaneously render possible a rapid shift of the working position of the image detection apparatus from a horizontal position immediately beneath the patient support platform to a vertical position immediately above the patient support platform, the disclosure provides that the lifting carriage exhibits an essentially angled configuration and that the image detection apparatus is pivotally mounted on the free end of the horizontal leg of the lifting carriage, that the stand carriage, the lifting carriage (guided on the stand carriage) and the support-mounting (pivotally mounted on the lifting carriage) are arranged beneath the image detection apparatus, and that coupling elements (which are capable of being brought into engagement with the x-ray examination apparatus) are connected with the stand carriage.