Abstract: A particle radiation therapy apparatus 10 includes: a bed 15 for positioning of a patient 12; irradiation ports 16 (16a, 16b) that output a particle beam in a treatment room 11; a horizontal-direction imaging unit 21 composed of a first X-ray source 25 and a first X-ray detector 26 that face each other with the bed 15 interposed therebetween; a vertical-direction imaging unit 22 composed of a second X-ray source 27 and a second X-ray detector 28 that face each other with the bed 15 interposed therebetween; a storage room 18 for housing the first X-ray detector 26 under the floor when the horizontal-direction imaging unit 21 is not used; and a support member 23 that moves the first X-ray detector 26 above the floor and supports it between the bed 15 and the side of the irradiation ports 16 when the horizontal-direction imaging unit 21 is used.

Abstract: An X-ray system includes an X-ray source and/or an X-ray detector, at least two guide rails, and at least one carriage on which the X-ray source and/or the X-ray detector is mounted. The carriage includes first guide wheels and second guide wheels, and a drive unit including drive wheels and a motor drive that drives the one or more drive wheels. The first guide wheels move between at least two different positions relative to the carriage. In a first position, the drive wheels are in a lifted position such that the carriage is moveably mounted on the guide rails via the first and second guide wheels. In a second position, the first guide wheels disengage from the guide rails while the drive wheels engage with the guide rails such that the carriage is moveably mounted on the guide rails via the second guide wheels and the drive wheels.

Abstract: A radiation imaging apparatus includes: a radiation detection panel; an electrical component electrically connected to the radiation detection panel; and a housing for housing the radiation detection panel including a top configured to cause the radiation to enter the housing and impinge on the radiation detection panel, and a bottom arranged on a side opposite to the top. An inner surface of the bottom on a side of the radiation detection panel includes a supporting surface configured to support the radiation detection panel. A concave portion defined by a part of an outer surface of the bottom is formed on a side of the bottom opposite to the side of the radiation detection panel i.e. on the outside of the housing. The electrical component is arranged in the concave portion.

Abstract: Disclosed is a radiation diagnostic apparatus that includes an examination table that has a length in a first direction, a fixing frame that is fixedly disposed on a floor to be separated from the examination table in the first direction and includes a guide member provided in the first direction, a transfer frame that contacts the guide member and moves along the first direction with respect to the fixing frame, a first rotary arm that is rotatably connected to the transfer frame, and a second rotary arm that is rotatably connected to the first rotary arm and is provided for a radiation source and a radiation detector to face each other.

Abstract: A method for determining an actual shear angle between an interior wall and a facesheet of a cellular panel using an imaging system is disclosed. The imaging system may include a radiation source and a detector diametrically opposed to the radiation source. The method may include positioning the cellular panel at a tilt angle relative to a line extending between the radiation source and the detector, transmitting radiation from the radiation source to the detector through the cellular panel at the tilt angle to obtain an image, measuring a projected shear angle in the obtained image, and determining the actual shear angle between the interior wall and the facesheet using the tilt angle and the projected shear angle.

Abstract: Disclosed herein is an X-ray image apparatus having an improved signal transmitting structure connecting an X-ray generating unit or an X-ray detecting unit to a control unit or a power supply unit. It is an aspect of the present invention to provide an X-ray image apparatus including an X-ray generating unit generating X-rays and radiating the X-rays; an X-ray detecting unit detecting the X-rays radiated from the X-ray generating unit; a moving unit for moving the X-ray generating unit; a power supply unit for supplying power to the X-ray generating unit; a control unit controlling a movement of at least one of the X-ray generating unit and the X-ray detecting unit; and at least one signal transmitting unit transmitting a signal to at least one of the power supply unit and the control unit, and coupled to an inner side of the moving unit.

Abstract: A medical imaging device includes a gripping module having at least a first holding grip and a second holding grip. The first holding grip and the second holding grip are configured for holding by a patient during an image recording. A control unit is arranged on the medical imaging device. The control unit is configured to control an automatic movement of the holding grips. As a result, manual operation of the holding grips by medical operators may be avoided, thereby simplifying and accelerating the process of recording images.

Abstract: A mobile fluoroscopic imaging system having a portable radiation source capable of emitting radiation in both single and, alternatively, pulse emissions and adapted to move in all degrees of freedom; a portable detector operable to detect radiation from the radiation source, wherein the detector is adapted to move independently of the radiation source in all degrees of freedom; the radiation source and detector each comprises an alignment sensor in communication with a computer; the computer is in communication with the radiation source and the detector; the position, distance and orientation of the radiation source and the detector are established by the computer; and the computer sends an activation signal to the radiation source to indicate when radiation may be emitted. Preferably, the radiation source is prevented from emission of radiation until the detector and the radiation source have achieved predetermined alignment conditions.

Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, first detector, second detector, arm, sliding mechanism, tilting mechanism, and control unit. The X-ray tube includes an anode to generate X-rays upon receiving electrons. The first detector has the first pixel size. The second detector has the second pixel size smaller than the first pixel size. The arm pivotally supports the X-ray tube, first detector, and second detector. The sliding mechanism slidably supports the first and second detectors so as to irradiate one of the first and second detectors with the X-rays generated by the X-ray tube. The tilting mechanism tiltably supports the X-ray tube to change the size of an effective X-ray focal spot on the anode. The control unit controls the sliding of the first and second detectors by the sliding mechanism upon interlocking with the tilting of the X-ray tube by the tilting mechanism.

Abstract: An X-ray cover for enveloping an X-ray cassette. The cover comprises a first sheet, a second sheet and band. The first sheet and second sheet are sized and shaped to accept the X-ray cassette and the band is sized and shaped to isolate the X-ray cassette during a radiographic procedure.

Abstract: A cassette includes: an image capturing unit including: an image receiving unit having a flat panel shape on which a plurality of pixels are arranged on a substrate converting radiation into electric charges and accumulating the converted electric charges; and a support to which the image receiving unit is attached; and a case in which the image capturing unit is accommodated in an unfixed state, in which the support supports the image receiving unit, and an outer edge of the support is disposed on an outer side of an outer edge of the substrate of the image receiving unit in a direction parallel to an image receiving surface of the image receiving unit.

Abstract: When a multi-system setting command switch, targeted rotating position information switches, and a command executing switch are pressed down, a CPU reads out a path of frontal and lateral systems from a current position to a setting position from a setting position information memory, and reads out rotation direction and angle from a targeted position information memory. The CPU moves the frontal and lateral systems horizontally along the read-out path until the commanded setting position information conforms to detected actual position information. When the setting position information conforms to the actual position information, the frontal and lateral systems are rotated successively until the commanded rotation direction and angle conform to the detected actual position information. Thereby a fluoroscopic X-ray system can be moved smoothly from a standby position via the setting position to a targeted rotating position.

Abstract: There is provided a radiographic imaging apparatus including: a control unit housing a control section and a power source section; a panel unit housing a radiation detection panel; a connection member that rotatably connects one edge portion of each of the control unit and the panel unit so as to adopt two states: a closed state in which one face of the control unit faces one face of the panel unit, and an open state in which the one face of the control unit and the one face of the panel unit are side-by-side facing in substantially the same direction, wherein in the open state the other face of the panel unit is positioned higher than the other face of the control unit; and a support member positioned below the other face of the panel unit and supporting the panel unit when in the open state.

Abstract: A radiographic image detection apparatus includes a detection panel and a housing for containing the detection panel. The housing consists of a front surface member, a back surface member, and a carbon plate attached so as to cover an opening formed in the front surface member. The carbon plate is faced to the detection panel. To the carbon plate is adhered a transparent sheet having transmissivity to radiation and visible light. A first index and a second index are printed on an inner surface of the transparent sheet. The first index is a square-frame shaped index showing a radiation detection range of the detection panel. The second index is a cross-shaped index showing a center position of the radiation detection range. The first and second indices are formed of nonmetallic UV curable ink having no radiation shielding properties.

Abstract: An image capture system for recording X-ray images in real time is disclosed. The image capture system includes an image pickup device, a sensing module and a surgical navigation device. The sensing module is used to detect the on/off status of the image pickup device. While the image pickup device is turned on to capture an X-ray image, the sensing module transmits a notification signal to the surgical navigation device. After receiving the notification signal, the surgical navigation device records the X-ray image captured by the image pickup device and the relative position between the image pickup device and the patient in real time. Thus, the real-time recording of the relative position between the image pickup device and the patient will prevent inaccurate image reading that occurs when the patient's position and image pickup device shift after the X-ray image has been captured.

Abstract: A shoulder joint is provided. The shoulder joint includes a main support, a fold-out arm, first and second carriages arranged on the main support, and a first coupling that is operable to couple the first and second carriages together. The fold-out arm is attached by a pin to the second carriage, and the first carriage is connected to the fold-out arm in such a way that when the first and second carriages are operable to move towards each other, the fold-out arm is folded out by pivoting around the pin. The first coupling is operable to couple the first and second carriages together when the fold-out arm is folded out, and the first and second carriages are operable to move jointly in at least one direction when coupled together.

Abstract: A shoulder joint is provided. The shoulder joint includes a main support; a fold-out arm including an upper arm and a lower arm, the upper arm operable to pivot about a pin and the lower arm operable to pivot on a spindle on one end of the upper arm; and a first wheel attached to the pin, and a second wheel attached to the spindle. The upper arm and the lower arm are mechanically linked via the two wheels in such a way that rotation of the upper arm about the pin cause rotation of the second wheel and the lower arm relative to the upper arm, resulting in a bending or straightening of the arm.

Abstract: An X-ray cover for enveloping an X-ray cassette. The cover comprises a first sheet of non-plastic material and a second sheet of non-plastic material. The cover further comprises a cushion element integrally distributed throughout the first sheet and the second sheet wherein the first sheet and second sheet are sized and shaped to accept the X-ray cassette and wherein the cushion element is sized and shaped to cushion the patient's body part during an X-ray procedure.

Abstract: A modified grid cabinet or “bucky” assembly intended for use with a digital imaging system and dimensioned and structured to retrofit a conventional film type x-ray device originally intended for use in combination with a conventional film bucky. The bucky assembly includes a frame having an at least partially hollow interior and a tray movably connected to the frame and slidably positionable between an outwardly extending open position and an inwardly disposed closed position. The tray is structured to support and position a digital sensor into an imaging position relative to the operative image capturing components of the digital imaging system. The tray includes a retaining assembly disposed and structured to removably retain the digital sensor in any a plurality of operative orientations including a portrait orientation and a landscape orientation.

Abstract: A system to track movement of an object travelling through an imaged subject is provided. The system includes an imaging system to acquire a fluoroscopic image and operable to create a three-dimensional model of a region of interest of the imaged subject. A controller includes computer-readable program instructions representative of the steps of calculating a probability that an acquired image data is of the object on a per pixel basis in the fluoroscopic image, calculating a value of a blending coefficient per pixel of the fluoroscopic image dependent on the probability, adjusting the fluoroscopic image including multiplying the value of the blending coefficient with one of a greyscale value, a contrast value, and an intensity value for each pixel of the fluoroscopic image. The adjusted fluoroscopic image is combined with the three-dimensional model to create an output image illustrative of the object in spatial relation to the three-dimensional model.

Abstract: A monitor assembly includes a monitor, for displaying output of a diagnostic device such as a fluoroscope, to which is operationally attached a bracket that is operative to secure (preferably reversibly) the monitor to the diagnostic device so that an operator of the diagnostic device can view the output while operating the diagnostic device and without interrupting the operation of the diagnostic device. Preferably, the monitor is attached to the bracket by a joint assembly that allows the monitor to be translated and rotated relative to the bracket.

Abstract: A combination radiography and fluoroscopy system includes in one embodiment a radiography radiation generator and radiography radiation receiver, a fluoroscopy radiation generator and fluoroscopy radiation receiver, and a single computer system connected to receive signals from the radiography radiation receiver and fluoroscopy radiation receiver. The single computer system includes signal processing paths for the radiography signal and for the fluoroscopy signal wherein some processes or modules are common between the paths and some are path specific. The path specific processes are preferably connected in parallel. Common controls and a common interface are provided to the monitor connected to the computer system.

Abstract: An x-ray apparatus is provided. The x-ray apparatus includes a patient support supported on a support unit in such a manner that it can be repositioned by way of a support arm and an x-ray detector likewise supported on the support arm, embodied in particular as a solid-state detector. The x-ray detector can be moved perpendicular to the patient support by way of a retaining column of a repositioning mechanism and can be rotated relative to the patient support about a first longitudinal axis extending in a longitudinal direction of the patient support. To increase the flexibility of the x-ray apparatus, the x-ray detector is supported in such a manner that it can be rotated relative to the patient support about a transverse axis extending in a transverse direction of the patient support.

Abstract: The invention refers to a medical imaging device (1) comprising an X-ray source (2) for irradiating an object to be imaged. Detector means (3) having an adjustable orientation detect the X-rays after passage through the object. Conversion means convert the detected X-rays into image data. Processing means (4) process the image data, that are displayed on display means (5) having an adjustable orientation. Means (8) are provided for rendering the orientation of the detector means and the orientation of the display means essentially equal, thus enhancing the efficiency of use of the display area.

Abstract: Apparatus includes a digital x-ray detector panel, a panel support, and a resilient sheet positioned between the panel and the support, the sheet having an area smaller than an area of the panel.

Abstract: An x-ray device for recording projection images of a patient features a C-arm on the ends of which an x-ray source and an x-ray detector are accommodated. The x-ray detector is accommodated on the C-arm so that translation movements can be executed with the x-ray detector in relation to the C-arm. This allows the angulation area or the area of the x-ray device with which an image can be recorded to be increased.

Abstract: A surgical imaging system includes spaced-apart first and second x-ray sources mounted above a patient support surface. An x-ray detector mounted below the patient support surface generates first x-ray images based upon x-rays from the first x-ray source and second x-ray images based upon x-rays from the second x-ray source. These first and second x-ray images are used to generate a stereofluoroscopic image via a stereo display for a surgeon performing image-guided surgery. The stereofluoroscopic imaging system may be used in conjunction with robotic surgery. A surgical robot operatively controls a surgical tool in an area between the first x-ray source and the x-ray detector, and between the second x-ray source and the x-ray detector. The system may optionally include a first video camera mounted proximate the first x-ray source and a second video camera mounted proximate the second x-ray source.

Abstract: X- and y-axis moving mechanisms are provided for positioning a sample table in the x-axis and the y-axis directions. A yT-axis moving mechanism for moving those moving mechanisms in a direction along a tilting direction of a X-ray camera is provided separately from the x- and y-axes moving mechanisms. When the X-ray camera is tilted, the sample table is moved by the yt axis moving mechanism and a z-axis moving mechanism, whereby a viewpoint of the sample and a fluoroscopic magnification factor set before the X-ray camera is tilted are left unchanged. The coordinates on the sample table by the moving mechanisms before the X-ray camera is tilted can be used as they are even after the camera is tilted.

Abstract: A sensor assembly that allows a sensor to be detachably mounted onto a fluoroscopic mount, such as a C-arm, is provided. The sensor assembly includes an electromagnetic sensor that is configured for outputting positional data relating to the fluoroscopic mount. The sensor includes a mount engaging element, and the sensor mount includes a sensor engaging element, both of which are configured to be removably mounted in an interference relationship with each other. The mount engaging element of the sensor can be a sensor housing, or alternatively, an element that is separate from the sensor housing. The sensor mount, which is composed of a non-ferromagnetic material, further includes a spacer for maintaining the sensor a prescribed distance from the ferromagnetic fluoroscopic mount, thereby minimizing any adverse ferromagnetic effects on the sensor.

Abstract: An x-ray diagnostic device having a positioning plate for an examination subject mounted to as to be adjustable at a base has a radiation receiver implemented as a solid state detector that is mounted at the base via a gallows frame so as to be adjustable with respect to the positioning plate.

Abstract: An apparatus for use in the field of dentistry consisting of a rotatable c-arm assembly having a housing with an emitter on one end and a fluoroscopic image receptor at another end, a control panel, three mechanical arms connecting the housing and the control panel to each other, an intraoral image receptor and a plastic holder device for the intraoral image receptor. The apparatus has the improved feature of having two modes of operation, a fluoroscopic mode or a conventional radiographic mode. The mode of operation is selected by the operator by a foot pedal for use in fluoroscopic mode, or a hand activator control for use in conventional mode. A beam of x-rays or gamma rays is emitted from the housing corresponding to the selected mode.

Abstract: Device and method of treatment of light obtained from X-rays, comprising a means of filtering the light with a cutoff frequency such that a first part of the spectrum of the light emitted by a light emitter is preserved, the first part of the spectrum being independent of temperature, and a second part of the light spectrum is stopped, the second part of the spectrum presenting a shift dependent on temperature. The invention also concerns an imaging cassette, a dose measuring module and a radiology apparatus.

Abstract: A plasma source of soft x-rays provides the illumination for a microfluoroscope. In general, an x-ray relay optic collects part of the diverging plasma radiation and redirects it to a distant plane. At that plane, the fine-grained or grainless fluorescent screen of a microfluoroscope is placed to receive the radiation. A specimen is placed in direct contact with the screen, or in very close proximity, so that its x-ray shadow is projected onto the screen. The screen is very thin and transparent to visible or ultraviolet light so that a high-numerical-aperture optical microscope objective can closely approach and view the screen from the opposite side. The optical microscope views the fluorescent light emitted by the screen, which corresponds to the x-ray absorption shadow of the specimen. In general, a very thin, x-ray transparent vacuum window is used to separate the specimen, fluorescent screen, and microscope from the vacuum of the plasma source.

Abstract: Radiographic images may be produced electronically for diagnostic purposes during radiation therapy by utilizing a portable cart-based electronic portal imaging system wherein a photo-stimulable phosphor screen is mounted on the cart by a manipulable stanchion/arm assembly enabling selective positioning movement of the screen horizontally, vertically, and angularly relative to the cart among various spacial orientations as necessary to subtend the radiation beam. A camera and a computer are mounted on the cart to photographically capture and digitize X-ray images produced by the screen and to remotely transmit such images for diagnostic purposes of confirming and, as necessary, adjusting patient positioning.

Abstract: The present invention provides a radiation diagnosis apparatus which comprises a radiation generating apparatus for emitting radiation to a subject placed on a bed, an image pickup apparatus arranged so as to face the radiation generating apparatus for picking up the radiation passed through the subject as radiation image, a first light projecting device for irradiating first light along a central axis of irradiation visual field of the radiation, and a second light projecting device for irradiating second light intersected with the first light irradiated by the first light projecting means along the central axis, whereby the center of the irradiation visual field can be indicated.

Abstract: A videofluoroscopy device having a vertical housing and a c-arm supporting an x-ray device is provided. The vertical housing encloses a first channel wherein a center screw is mounted. The center screw engages a mounting block having a threaded aperture formed therein, the mounting block being attached to the c-arm. A motor engaging the center screw turns the center screw in reversible directions thereby causing the center screw to communicate with the c-arm and moving the c-arm along a longitudinal axis to record a real time video x-ray image of a patient. A video monitor and video tape recorder are connected to the x-ray device by a video cable.

Abstract: A power supply for a television apparatus, comprises a first source of unregulated DO run voltage operable only in a run mode of operation and a second source of unregulated DO voltage operable in a standby mode and in the run mode of operation. A first regulator responsive to the first source unregulated DO run voltage produces a first regulated voltage. A second regulator responsive to the second source of unregulated DO voltage produces a second regulated voltage. First and second integrated circuits are energized respectively by the first and second regulated voltages. At least one of the integrated circuits has a signal output coupled to a signal input of the other of the integrated circuits. A controller is operable in the run mode and responsive to variations of one of the regulated voltages for adjusting the other of the regulated voltages to follow the variations. Each of the regulators may comprise a series pass transistor and a control transistor coupled to a base of the series pass transistor.

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

Abstract: A multi-directional x-ray imager for use with an isocentric therapy x-ray machine having a rotatable x-ray source. The imager has a fluorescence screen which emits light when excited by x-rays from the source and an imaging camera which images the light emission. A rotational joint rotates and aligns the screen relative to a different rotated position of the source relative to the patient. The camera is positioned out of the straight line path of the x-rays passing through the screen, amd a deflecting mirror deflects the emitted light to the camera. The mirror includes a thin sheet of reflective material, such as aluminized plastic, to prevent the x-rays impinging thereon from scattering to the (solid state video) camera.

Abstract: An image input apparatus including a camera tube having a photoconductive layer onto which an optical image is to be projected, a cathode for emitting an electron beam for scanning the photoconductive layer, a control electrode for controlling a beam current of the electron beam emitted from the cathode in accordance with a control voltage, and a mesh electrode having a frame, the apparatus further including a deflecting circuit for periodically deflecting the electron beam to scan the photoconductive layer. The deflecting circuit periodically deflects the electron beam to scan an area outside a restricted scanning area determined by the frame of the mesh electrode.

Abstract: An X-ray inspection system for inspecting electronic components such as printed circuit boards includes a shielded cabinet having an exposure chamber divided into upper and lower portions by a support shelf for the object to be inspected. An overhead X-ray source directs an X-ray beam into the upper portion of the exposure chamber toward the object. An image intensifier including a thin radioluminescent plate and a microchannel plate multiplier is disposed in the lower portion of the exposure chamber and is optically coupled to a video camera therein.

Abstract: A radiation therapy imager provides images of a patient while being treated while on a radiation therapy machine for purposes of verification and monitoring of position and alignment, and for shaping of the radiation field. The radiation therapy imager has a video camera mounted on the gantry of the radiation therapy machine and positioned diametrically opposite the treatment head. An elongated light box is disposed over the camera to exclude ambient light from the camera and a fluoroscopic plate is positioned at the distal end of the light box, i.e., the end remote of the camera. The plate is aligned with and facing the head to produce a fluoroscopic image in response to the treatment radiation that is applied from the head through the patient. A mirror in the light box is oriented to reflect the image to the camera to permit monitoring on a viewing screen. The light box can be retracted from under the treatment table either by telescoping the light box down or by swinging the light box to one side.

Abstract: A close packed planar array corner cube surface is employed in making an x-ray image intensifier screen. The corner cube surface is produced from single cube silicon crystal using a photoresist pattern of an array of triangle openings aligned with the <110> directions of the cube in a {111} plane facial surface of the wafer. Corner cube cells are etched in the wafer surface with an anisotropic etchant preferentially etching the {100} planes of the cubic lattice. A method for producing a retro-reflective surface from the etched silicon wafer for making the x-ray phosphor imaging screen is described.

Abstract: Method and apparatus for the production of fluoroscopic and radiographic x-ray images utilizing a portable hand-held and battery operated x-ray system. The system incorporates a unique high voltage power supply of diminutive size and weight which may be disposed totally within the hand-held system. By utilizing the system in conjunction with a currently available hand operated instant Polaroid film developer, the system provides total portability and field operability in both fluoroscopic and radiographic mode.

Abstract: A high resolution X-ray inspection system particularly adapted for electronic circuit components comprised of an X-ray cabinet including an X-ray tube which is located in a vertical tower and where the object and film are placed on a slidable support member located inside the lower portion of the cabinet, with the support member being slidable outwardly therefrom. The slidable support member includes provision for attaching, upon demand, a fluoroscopic imaging device whose output is optically coupled to a closed circuit TV camera located in the bottom of the housing beneath the slidable shelf. The fluoroscopic generator includes a thinly coated radioluminescent phosphor plate optically coupled to the input of an image intensifier comprised of a microchannel plate multiplier.

Abstract: A radiation image recording and read-out apparatus comprises a recording and read-out unit provided with a case having a size nearly equal to a single image recording area on a stimulable phosphor sheet, an image recording section for recording a radiation image of an object on the stimulable phosphor sheet, an image read-out section provided in the case for reading the radiation image from the stimulable phosphor sheet, and an erasing section provided in the case. The recording and read-out unit is moved between a first position at which the stimulable phosphor sheet is disposed at an image recording position exposed to radiation passing through the object, and a second position retracted from the first position. A fluoroscopic device is provided for receiving the radiation passing through the object at the time the recording and read-out unit is present at its second position, and converting the radiation into signals for a visible image.

Abstract: An X-ray diagnostic apparatus has two modes, i.e., a fluoroscopy mode for displaying an X-ray fluoroscopic image, and a radiography mode which is selected in response to a radiography instruction in the fluoroscopy mode, for recording an X-ray radiographic image. X-ray fluoroscopic image data obtained by an X-ray image detector in the fluoroscopy mode is converted to a digital image signal by an A/D converter. At least a plurality of frames of digital image signals of X-ray fluoroscopic images corresponding to a period which includes an input timing of the radiography instruction are continuously stored in a fluoroscopic image memory section.

Abstract: An x-ray imager system of the type that indicates alignment of patient treatment field with x-ray field, using fluorescence screen and imaging sensor, has a cabinet that permits selection of two pre-determinable orientations of cabinet parts mounting the fluorescence screen and sensor (1) at 90.degree. to each other and (2) in linear alignment with each other, by pivoting of upper and lower portions of the cabinet relative to each other. For this, any axially aligned ring-bearing fixed at 45.degree. to the vertical rotatively joins together respective 45.degree. diagonal ends of the cabinet parts, and a detent holds the diagonal ends in either of the two pre-determinable positions of the cabinet parts to each other. A mirror that relays the image at one orientation can be retracted from position in the light path to avoid the beam, when not used.

Abstract: Method and apparatus for the production of fluoroscopic and radiographic x-ray images utilizing a portable hand-held and battery operated x-ray system. The system incorporates a unique high voltage power supply of diminutive size and weight which may be disposed totally within the hand-held system. By utilizing the system in conjunction with a currently available hand operated instant Polaroid film developer, the system provides total portability and field operability in both fluoroscopic and radiographic mode.

Abstract: In medical X-ray apparatus including a stand mounting an X-ray tube and two X-ray receptors such as an image intensifier and a film exchanger, the two X-ray receptors are mounted on a common frame pivoted to present either receptor at the image plane of the X-ray tube. Additionally the two receptors slide on the frame and are linked by a bell crank for coordinated rotation and sliding movement which restores their common center of gravity to its initial locus as one receptor is interchanged for the other. Balance of the receptors with the X-ray tube on the frame is thereby maintained.