US3222518A - Movable x-ray table with means to take x-ray pictures of successive portions of the object and means to alternatively insert photographic means and image amplifier means - Google Patents

Movable x-ray table with means to take x-ray pictures of successive portions of the object and means to alternatively insert photographic means and image amplifier means Download PDF

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Publication number
US3222518A
US3222518A US289931A US28993163A US3222518A US 3222518 A US3222518 A US 3222518A US 289931 A US289931 A US 289931A US 28993163 A US28993163 A US 28993163A US 3222518 A US3222518 A US 3222518A
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United States
Prior art keywords
table top
ray
switch
displacement
camera
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Expired - Lifetime
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US289931A
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English (en)
Inventor
Nagel Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale de Radiologie SA
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Compagnie Generale de Radiologie SA
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0487—Motor-assisted positioning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/481—Diagnostic techniques involving the use of contrast agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/504—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of blood vessels, e.g. by angiography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • G03B42/025—Positioning or masking the X-ray film cartridge in the radiographic apparatus

Definitions

  • This invention relates to medical Xray systems of the type comprising a flat table adapted to receive a subject to be X-rayed recumbent on its top and means for accurately displacing the table in a horizontal plane both longitudinally and transversely for positioning a selected part of the subjects body in the path of a vertical X-ray beam for examination, photography and/ or treatment.
  • One important medical application of the invention is in the diagnosis and treatment of vascular diseases, where the blood circulation along the vessels e.g. of the subjects lower limbs is investigated by first injecting into the vessel at one point, a substance opaque to X-rays. The invention then permits rapidly and automatically radiographing successive portions of the vessel as they are progressively opacified by the substance carried along with the bloodstream. In view of the high rate of arterial blood flow, about four metres per second, such operations have heretofore presented serious problems. It is a specific object of this invention to provide improved X-ray apparatus for the above and related applications.
  • Another object is to provide an X-ray system having improved facilities for accurate substitution of a photographic plate-carrier for a brightness amplifier, whereby a selected part of the subjects body can first be X-ray viewed, and then the same part can be X-ray photographed immediately without having to reposition the table carrying the patient.
  • a broad object is to provide a medical X-ray system having greatly improved features of operating facility
  • FIGURE 1 is a perspective view of an improved X-ray table system according to the invention and associated equipment;
  • FIGURE 2 is a partial perspective view showing more clearly the movement and counterweight means for brightness intensifier (or luminance amplifier) unit and the means for inserting a plate-carrier frame in vertically centered relation therewith;
  • FIGURE 3 is generally similar to FIGURE 2 but shows the insertion of a multiple plate-carrier frame
  • FIGURE 4 is a view similar to FIGURE 2 but relating to a modification.
  • the apparatus of the invention as shown in FIGURE 1 includes a supporting frame structure 1 and a flat rectangular table 19 which is displaceable in its plane both longitudinally and transversely above the frame structure.
  • the supporting frame 1 is shown as carrying a pair of longitudinally spaced transverse angles or channels 2 and 3 providing rails or guideways.
  • a rectangular frame 4 is provided with pairs of rollers engaging the upper and lower surfaces of the horizontal flanges 2 and 3' of the angles 2 and 3 for displacement, transversely to the supporting frame structure 1.
  • frame 4 carries the upper and lower rollers 5-7 and 68 engaging the flange 2', and the upper and lower rollers 9 and 10, respectively, engaging the flange 3'.
  • the frame 4 further carries pairs of upper and lower rollers on each of its remaining two sides, to wit the upper rollers 11 and 13 and lower rollers 12 and 14 on one side, and the upper rollers 15 and 17 and lower rollers 16 and 18 on the opposite side.
  • These four pairs of rollers are engaged by the upper and lower surfaces of suitable side flanges, not shown, provided along the longitudinal sides of the flat rectangular table member 19.
  • an electric motor 20 suitably mounted on the frame 4 and driving by way of an electrically actuated clutch 22 a driver roller 23 frictionally engageable with a cooperating longitudinal surface of the table 19.
  • a rack and gear drive may be used.
  • Motor 20 is further shown as being provided with an electrically actuated brake 21, of a suitable conventional type capable of bringing the motor promptly to a stop on disengagement of the clutch 22.
  • Electrically actuated braking means 25 and 24 are further provided for blocking the table 19 in any position on its longitudinal and transverse paths of displacement respectively.
  • a rail 27 Extending parallel to a longitudinal side of the table 19 and supported therefrom is a rail 27 having switchactuator cams 28, 29, 36, 31 mounted thereon at adjustable longitudinal settings by means of set screws. Obviously the number of cams used may differ from the four shown. The cams are engageable with a switch contact member 26 mounted on a side of frame 4 in a suitable position to be engaged by the cams in succession as the table 19 moves longitudinally with respect to the frame 4.
  • An automatic filmor plate-changing camera unit 59 of generally conventional character, is shown as positioned underneath the table 19 in fixed relation to the supporting frame structure 1, and in vertical alignment with an X-ray beam issuing from a conventional X-ray generating unit shown above the table.
  • the cams 28-31 may first be preset to positions along the rail 17 corresponding to said selected parts, and the table 19 with frame 4 shifted manually in a transverse direction until the said leg of the patient is positioned in the vertical plane of the X-ray beam. Then electric power is applied so that motor 20 rotates to move the table 19 longitudinally with respect to frame 4 and supporting structure 1.
  • a first cam say cam 28, strikes the switch 26, this acts through conventional circuitry not shown, to disengage clutch 22 and apply the electrically actuated brakes 21 and 25.
  • the table is thus blocked at a position in which the first of the areas to be radiographed .is presented to the X-ray beam.
  • the X-ray camera 59 is now operated, manually or preferably automatically, to expose a film and to remove the exposed film or plate and insert a fresh one in its place.
  • the brakes 25 and 21 are released and clutch 22 reengaged to cause the table 19 to start on a new lap of its longitudinal travel, until the next of the preset cams engages switch 26, when the above process is repeated.
  • a brightness (or luminance) amplifier unit 33 is supported from the structure 1 generally beneath the frame 4.
  • the unit 33 is supported for vertical, up-and-down parallel movement relative to structure 1 by means of a parallel linkage system comprising two pairs of arms 32 having opposite ends pivoted to structure 1 and to suitable points of the casing of unit 33 as shown.
  • the unit 33 is further shown as having attached to it a television camera 34 and a motion-picture camera 35, though the provision of each of these attachments is of course optional.
  • a slider 38 carrying a plateor film-carrier 39 and an overlying anti-diffusion screen 40 is slidably insertable into the guideways 36 and 37 from a side of the apparatus.
  • a pulley 42 is rotatably supported by means of a yoke 41.
  • a rope 43 trained over the pulley has one end attached to the casing of unit 33 and its other end suspends a weight 44 serving to counterbalance the weight of unit 33 and any attachments thereto.
  • the brightness intensifier unit 33 can be lifted to its uppermost operative position to effect an X-ray viewing. Thereafter, the unit 33 can easily and quickly be pushed down and out of the way and the slider 38 inserted, so as to take a radiograph of the organ previously viewed.
  • FIGURE 3 illustrates an arrangement using a platecarrying slider 45 provided with a plurality of, herein three, plate cases 46, 47 and 48, whereby a sequence of radiographs can be taken in rapid succession by simply displacing the slider 45.
  • a detent latch 49 is provided for latching the slider 45 in each of its correct positions at which the plates are centered with respect to the field previously viewed by means of the brightness amplifier unit 33.
  • screen 50 is shown positioned in separate slideways 51 and 52 provided above the ways 36 and 37.
  • FIGURE 4 is shown a modification wherein the ways 36 and 37 are of telescopic construction, and the plate-carrier 53 is provided with hinge means 54 and 55.
  • the arrangement is such that after the slider 53 has been pulled out it can be shifted from a horizontal to a vertical position so as to be conveniently out of the way.
  • a rope 56 has one end attached to counterweight 44 and its other end passed around a pulley and attached to a pin 57 projecting from the lower telescopic slideway 58.
  • the invention as described provides important improvements in medical X-ray apparatus. While the two main feature of the invention, namely the means for positioning table 19 in relation to the camera 59, and the means for substituting the brightness amplifier unit 33 and sliding plate-carrier, may be used separately with advantageous results, it is preferred according to the invention that the two arrangements be combined since this will lead to especially interesting results particularly (though not exclusively) in connection with the vascular X-ray investigations previously referred to.
  • the injection of opaque substance can then be effected under televised monitoring using the brightness-amplifier unit 33, and the rate of flow of the bloodstream as well as other diagnostic features can then be studied by operating the table and automatic camera 59 as described earlier herein.
  • An X-ray system comprising in combination means producing an X-ray beam; a table adapted to support the body of a subject thereon in a plane generally normal to the beam, said table comprising a movable part including a top and a fixed part including a supporting frame therefor; means mounting the table top on the supporting frame for displacement in said plane longitudinally of the subjects body so as to position any selected part of the subjects body in the beam; X-ray camera means positioned on the opposite side of said table top from said beam producing means for radiographing said selected part positioned in the beam, said camera means being mounted to be stationary while said selected part is being radiographed; motor operated drive means mounted on said supporting frame for displacing the table top; switch means, a plurality of switch operating means separately positionable relative to the table in a direction parallel to table top displacement, said switch means being carried by one of said table parts while said switch operating means are mounted on the other in a cooperating position such that said switch means is actuated on displacement of the table top to each of a corresponding

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US289931A 1962-06-28 1963-06-24 Movable x-ray table with means to take x-ray pictures of successive portions of the object and means to alternatively insert photographic means and image amplifier means Expired - Lifetime US3222518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR902284A FR1335544A (fr) 1962-06-28 1962-06-28 Perfectionnements aux appareils d'examens radiologiques

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US3222518A true US3222518A (en) 1965-12-07

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FR (1) FR1335544A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463921A (en) * 1966-06-29 1969-08-26 Hans Erik Warden X-ray table equipment
US3488499A (en) * 1965-11-24 1970-01-06 Profexray Inc Direct contact x-ray image intensifier housing apparatus
US3499145A (en) * 1966-11-23 1970-03-03 Philips Corp Floating top x-ray table permitting close proximity between a patient supported thereon and a diaphragm placed therebeneath
EP0003691A1 (fr) * 1978-02-03 1979-08-22 Compagnie Generale De Radiologie Dispositif d'exposition pour appareil de radiodiagnostic, à écrans renforçateurs amovibles
FR2549248A1 (fr) * 1983-06-24 1985-01-18 Thomson Csf Porte-cassette escamotable pour appareil d'examen radiologique et radiographique
US5185777A (en) * 1990-03-01 1993-02-09 Kabushiki Kaisha Toshiba X-ray radiographing system with spot-film device
US20080236228A1 (en) * 2000-06-27 2008-10-02 Agrium Inc. Controlled Release Fertilizer And Method For Production Thereof
US20100050343A1 (en) * 2008-08-29 2010-03-04 Hornbach David W Patient-support apparatus with movable top

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02191435A (ja) * 1989-01-20 1990-07-27 Toshiba Corp Ｘ線透視撮影装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT84959B (de) * 1919-03-26 1921-07-25 Siemens Ag Röntgen-Operations- und Untersuchungstisch.
US3018375A (en) * 1959-11-19 1962-01-23 Picker Chi Ray Corp Viewing apparatus for amplified X-ray images
GB894500A (en) * 1958-08-28 1962-04-26 Siemens Reiniger Werke Ag Improvements in or relating to tables for positioning patients for examination and treatment by means of x-rays, gamma rays, or the like
US3076054A (en) * 1959-11-27 1963-01-29 Image Instr Inc X-ray system
US3091691A (en) * 1960-08-15 1963-05-28 Wilfred H Snow Aortographic multiple cassette chamber
US3109093A (en) * 1961-01-31 1963-10-29 Lab For Electronics Inc Apparatus for coordinating camera shutter movement with a pulsed X-ray beam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT84959B (de) * 1919-03-26 1921-07-25 Siemens Ag Röntgen-Operations- und Untersuchungstisch.
GB894500A (en) * 1958-08-28 1962-04-26 Siemens Reiniger Werke Ag Improvements in or relating to tables for positioning patients for examination and treatment by means of x-rays, gamma rays, or the like
US3018375A (en) * 1959-11-19 1962-01-23 Picker Chi Ray Corp Viewing apparatus for amplified X-ray images
US3076054A (en) * 1959-11-27 1963-01-29 Image Instr Inc X-ray system
US3091691A (en) * 1960-08-15 1963-05-28 Wilfred H Snow Aortographic multiple cassette chamber
US3109093A (en) * 1961-01-31 1963-10-29 Lab For Electronics Inc Apparatus for coordinating camera shutter movement with a pulsed X-ray beam

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488499A (en) * 1965-11-24 1970-01-06 Profexray Inc Direct contact x-ray image intensifier housing apparatus
US3463921A (en) * 1966-06-29 1969-08-26 Hans Erik Warden X-ray table equipment
US3499145A (en) * 1966-11-23 1970-03-03 Philips Corp Floating top x-ray table permitting close proximity between a patient supported thereon and a diaphragm placed therebeneath
EP0003691A1 (fr) * 1978-02-03 1979-08-22 Compagnie Generale De Radiologie Dispositif d'exposition pour appareil de radiodiagnostic, à écrans renforçateurs amovibles
FR2549248A1 (fr) * 1983-06-24 1985-01-18 Thomson Csf Porte-cassette escamotable pour appareil d'examen radiologique et radiographique
EP0132421A1 (fr) * 1983-06-24 1985-01-30 General Electric Cgr S.A. Appareil d'examen radiologique et radiographique
US4559641A (en) * 1983-06-24 1985-12-17 Thomson-Cgr Retractable cassette holder for a radiological and radiographic examination apparatus
US5185777A (en) * 1990-03-01 1993-02-09 Kabushiki Kaisha Toshiba X-ray radiographing system with spot-film device
US20080236228A1 (en) * 2000-06-27 2008-10-02 Agrium Inc. Controlled Release Fertilizer And Method For Production Thereof
US20100050343A1 (en) * 2008-08-29 2010-03-04 Hornbach David W Patient-support apparatus with movable top
US8176584B2 (en) 2008-08-29 2012-05-15 Hill-Rom Services, Inc. Patient-support apparatus with movable top

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Publication number Publication date
FR1335544A (fr) 1963-08-23

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