US3500045A - Tiltable x-ray table supporting an x-ray tube and detector for displacement and rotation in two directions relative to the table - Google Patents

Tiltable x-ray table supporting an x-ray tube and detector for displacement and rotation in two directions relative to the table Download PDF

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Publication number
US3500045A
US3500045A US580761A US3500045DA US3500045A US 3500045 A US3500045 A US 3500045A US 580761 A US580761 A US 580761A US 3500045D A US3500045D A US 3500045DA US 3500045 A US3500045 A US 3500045A
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United States
Prior art keywords
detector
ray
supporting
rotation
fork
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Expired - Lifetime
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US580761A
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English (en)
Inventor
Guido Rossi
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GENERAY GENERALE RADIOLOGICA SpA
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GENERAY GENERALE RADIOLOGICA SpA
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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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
    • 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

Definitions

  • a first fork member of an X-ray table receives a patient-carrying board and it is tiltable through 180 degrees about a horizontal axis, the first fork member supporting a second fork member for rotation about an axis perpendicular to the axis of rotation of the first fork member, the second fork member in turn supporting a carriage which is transversely displaceable between the arms of the fork members and on which carriage is rotatably mounted a swingable assembly for movement about an axis perpendicular to the axis of rotation of the second fork member with respect to the first fork member.
  • On the swingable assembly are displaceable support arms for an X-ray source and a detector.
  • the tiltable X-ray tables known heretofore and conventionally used permit that the patients system be viewed only with X-rays lying on planes perpendicular to the patient-supporting board, and parallel to the longitudinal axis thereof.
  • Said X-ray tables generally comprise the X-ray source, a ray detector in alignment with said source and a patient-supporting board positioned between said source and said detector.
  • Such tables permit a 90-degree rotation to be imparted to the patient-supporting board, in either direction, starting from the horizontal position.
  • the frame of the patient-supporting board is in any case solid with the structural unit which carries both the X-ray source and the detecting device.
  • the source is always positioned either beneath or above the patient-supporting board and, in combination with the detection device, is enabled to scan the patient-supporting board in horizontal plane only.
  • a further drawback of the conventional tables is in that the X-ray source is always positioned either above or beneath the patient-carrying board.
  • the tube-detector assembly is allowed to assume oblique angles of incidence along planes which contain the longitudinal axis of the table and not perpendicular thereto, but in Such tables, according to the embodiments known hitherto, no connection 3,500,045 Patented Mar. 10, 1970 exists between said assembly and the patient-carrying board, so that the movement are always handicapped.
  • This invention has the object of eliminating the shortcomings and limitations of the conventional tables while permitting X-ray examinations to be performed from any angle with respect to the patient-supporting plane, within a certain scanning area.
  • This invention thus relates to an X-ray table characterized in comprising, in combination, a first fork-shaped member for supporting the patient-carrying'board and capable of being tilted through degrees about a horizontal axis, and a second fork-shaped member, supported by said first fork-shaped member, rotatable about an axis perpendicular to said former axis, said second fork-shaped member carrying, rotatably about an axis perpendicular to the axis thereof, a swingable assembly formed by a carrier which supports an X-ray tube and a detector in opposed positions.
  • the swingable X-ray tube and detector assembly is pivotally mounted on a carriage which is allowed to travel over parallel guideways afiixed to said second fork-shaped member along a plane perpendicular to the plane of said forkshaped member.
  • the X-ray tube and the detector are separately mounted, each, on a respective arm which can be displaceably and independently fastened on guides affixed to the swingable supporting assembly in a direction perpendicular to the axis of oscillation, so that their respective distances from the axis of oscillation of the swingable assembly can be varied independently of one another.
  • Both the X-ray tube and the detector are enabled to be displaced, as an entity, along said arms along a direction parallel to the axis of oscillation so as to permit the inspection of a patient in a transverse direction.
  • the detector-supporting arm can be pivotally mounted on a slide, thus enabling said detector to be locked in a position coaxial to the X-ray tube or, alternatively, to maintain the sensitive plane of the detector parallel to the axis of rotation of said second fork-shaped member during the swinging movement.
  • An additional feature is the removability of the patientsupporting board, so that the patient can pe positioned in any particular posture by using, for example, an articulated chair, or it is possible to insert, in lieu of the rest board alone, special flats equipped with specific accessories, such as urological, orthopaedic, gynaecological accessories, and various devices, such as a seriograph, an amplifier and the like.
  • a device for the seating of the rotation axle of the first fork-shaped member can be utilized, which is adapted to allow said axle to be either lifted or depressed in order to ensure, during the rotation of the fork-shaped member, a minimum height from ground, consistent with the angle of tilt taken by the board.
  • the X-ray table according to the invention enables the relative positions taken by the three component parts (tube, patient and detector) be repeated in their mirrorimaged configurations with respect to a vertical plane containing the axis of the first fork-shaped member, while enabling the X-ray tube to be positioned either above or below the board with the detector in an opposed position.
  • This construction facilitates erection, the latter being no longer limited to the particular features of the environment in which it is to take place, work being also facilitated.
  • the supporting structure is hung on a wall resulting in a complete availability of the ground the whole area of interest throughout, said circumstance being a further aid to radiologicial operations.
  • FIGURE 1 is a diagrammatical plan view of the table.
  • FIGURE 2 is a side elevational view of the same, with the swingable support for the X-ray tube and the detector in two extreme positions.
  • FIGURE 3 is a front view of the table
  • FIGURE 4 is a similar front view of the table as preset for performing planigraphies.
  • the table comprises a supporting structure 1, having vertical guideways 2 and 3, along which a body 4 can be displaced, which carries a motor 5 and in which a pivotal pin 6 is freely and rotatably supported.
  • the pivot 6 solidly carries a flange 7 having a toothed peripheral surface 8 in mesh with a pinion 9, actuable by the motor 5.
  • the structure 1 has two rest planes 10 and 11 on which two rollers 12 and 13 can slide, said rollers being freely rotatable about their own axes and projecting from the rear of the flange 7 to which they are solidly fastened.
  • Said flange 7 frontally supports a main fork 14 which can be rotated through 90 degrees both rightward and leftward about the axis of the pivot 6.
  • the latter On a horizontal axis perpendicular to the axis of rotation of the main fork 14, the latter supports pivotal axles 18, 19, solid with a second fork 20, which is allowed to rotate through 90 degrees about the common axis of the pivots 18 and 19.
  • a carriage 23 On the back portion of the second fork 20 is slidably mounted on longitudinal guideways 21 and 22 a carriage 23.
  • On this carriage is slidable, along a perpendicular direction and on guideways 24 and 25, a slide 26; said slide rotatably supporting a pivot 27, solid with a supporting member 28.
  • the combination of the above enumerated parts thus permits that the main fork 14 can be tilted through 90 degrees rightward or leftward with respect to a horizontal plane, the same being true for the patient-supporting board.
  • the second fork 20 and therewith the supporting member 28 carrying the X-ray tube and the detector can also be tilted through degrees on the plane perpendicular and transverse to the axis of the pivots 18 and 19 and of the board 17.
  • the swingable support 28 can be rotated through 360 degrees, independent displacements of the X-ray tube 35 and the detector 36 being likewise permitted.
  • the supporting arm 33 of the detector 36 is rotatable on the slide 32, means (not shown) being provided for locking the arm 33 so that the detector is opposedly and coaxially mounted with respect to the X-ray tube 35 when the table is used for the usual skiagraphies.
  • By unlocking the arm 33 and allowing it to be rotated about the axis of the supporting member 34 one can obtain that the sensitive plane of the detector is maintained constantly parallel to the axis of rotation of the second fork 20 during the swinging movement of the supporting member 28, whenever planigraphies and the like (see FIG. are to be effected.
  • the position of the slide 26 is varied with respect to that of the carriage 23, thus shifting the center of rotation (pivot 27) of the swingable supporting assembly 28.
  • FIGURE 2 diagrammatically shows a carriage 43 which can be used for inserting or removing a board 17, to replace it with another board.
  • An X-ray table comprising a first fork member adapted for supporting a patient-carrying board and tiltable through about a horizontal axis, said fork member including spaced arms for supporting said board, a second fork member within said arms and pivotably supported thereby for rotation about an axis perpendicular to the axis of rotation of said first fork member, and a swingable assembly rotatably mounted on said second fork member for movement about an axis perpendicular to the axis of rotation of said second fork member with respect to the first fork member, said swingable assembly including support means for an X-ray source and a detector.
  • An X-ray table as claimed in claim 1 comprising a carriage slidably mounted on said second fork member for transverse movement between said arms, said swingable assembly being supported by said carriage.
  • An X-ray table as claimed in claim 2 comprising a slide on said carriage pivotably supporting said swingable assembly, said slide being displaceable on said carriage in a direction perpendicular to the direction of displacement of the carriage.
  • An X-ray table as claimed in claim 3 comprising means for displacing the X-ray source and detector on their respective arms in synchronism to retain a mutual coaxial relation therebetween.
  • An X-ray table as claimed in claim 4 comprising a displaceable slide on said swingable assembly pivotably supporting the arm of the detector and means for locking 3,500,045 5 6 said arm relative to the slide in a position in which the References Cited detector is coaxial with the X-ray tube, and also for un- UNITED STATES PATENTS locking the arm from the slide to permit a sensitive plane of the detector to remain parallel to the axis of rotation 31281598 10/1966 Houstem 250 57 of the second fork member during pivotable movement 5 ARCHIE BORCHELT Primary Examiner thereof.
  • An X-ray table as claimed in claim 1 comprising BIRCH Asslstant Exammer means on said arms of said first fork member for re US. Cl. X.R.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US580761A 1965-09-21 1966-09-20 Tiltable x-ray table supporting an x-ray tube and detector for displacement and rotation in two directions relative to the table Expired - Lifetime US3500045A (en)

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IT925065 1965-09-21

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US (1) US3500045A (enrdf_load_html_response)
BE (1) BE687215A (enrdf_load_html_response)
DE (1) DE1541126B2 (enrdf_load_html_response)
SE (1) SE346690B (enrdf_load_html_response)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670163A (en) * 1969-07-16 1972-06-13 Radiologie Cie Gle Radiological examination apparatus
US3708662A (en) * 1969-09-11 1973-01-02 Toshio Kurokawa X-ray photographing apparatus
DE2312404A1 (de) * 1972-03-15 1973-09-20 Koch & Sterzel Kg Roentgendiagnostikgeraet
US3833813A (en) * 1972-09-25 1974-09-03 Philips Corp Device for examining a patient, in particular by means of x-rays
US3927326A (en) * 1973-09-24 1975-12-16 Siemens Ag X-ray examining apparatus
US4209706A (en) * 1976-11-26 1980-06-24 Varian Associates, Inc. Fluoroscopic apparatus mounting fixture
FR2565093A1 (fr) * 1984-05-30 1985-12-06 Thomson Cgr Dispositif radiologique a acces total au patient
FR2581856A1 (fr) * 1985-05-14 1986-11-21 Philips Massiot Mat Medic Chassis d'examen basculant pour appareil de radiologie
EP0368067A1 (de) * 1988-11-09 1990-05-16 Karl-Dieter Muthmann Röntgenuntersuchungseinrichtung
WO2015073388A1 (en) * 2013-11-12 2015-05-21 Carestream Health, Inc. Head and neck imager

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121227A1 (de) * 1981-05-27 1982-12-23 Mediprix AG, 6280 Hochdorf Stativ fuer ein roentgengeraet
CH684737A5 (de) * 1991-11-20 1994-12-15 Urs Schraner Stativ für einen Röntgenapparat.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281598A (en) * 1965-11-19 1966-10-25 Picker X Ray Corp Waite Mfg Overhead support for a vertically and rotatably movable x-ray tube support arm and cooperating tiltable x-ray table

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281598A (en) * 1965-11-19 1966-10-25 Picker X Ray Corp Waite Mfg Overhead support for a vertically and rotatably movable x-ray tube support arm and cooperating tiltable x-ray table

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670163A (en) * 1969-07-16 1972-06-13 Radiologie Cie Gle Radiological examination apparatus
US3708662A (en) * 1969-09-11 1973-01-02 Toshio Kurokawa X-ray photographing apparatus
DE2312404A1 (de) * 1972-03-15 1973-09-20 Koch & Sterzel Kg Roentgendiagnostikgeraet
US3833813A (en) * 1972-09-25 1974-09-03 Philips Corp Device for examining a patient, in particular by means of x-rays
US3927326A (en) * 1973-09-24 1975-12-16 Siemens Ag X-ray examining apparatus
US4209706A (en) * 1976-11-26 1980-06-24 Varian Associates, Inc. Fluoroscopic apparatus mounting fixture
FR2565093A1 (fr) * 1984-05-30 1985-12-06 Thomson Cgr Dispositif radiologique a acces total au patient
EP0165157A1 (fr) * 1984-05-30 1985-12-18 Thomson-Cgr Dispositif radiologique à accès total au patient
FR2581856A1 (fr) * 1985-05-14 1986-11-21 Philips Massiot Mat Medic Chassis d'examen basculant pour appareil de radiologie
EP0368067A1 (de) * 1988-11-09 1990-05-16 Karl-Dieter Muthmann Röntgenuntersuchungseinrichtung
WO2015073388A1 (en) * 2013-11-12 2015-05-21 Carestream Health, Inc. Head and neck imager
US9808211B2 (en) 2013-11-12 2017-11-07 Carestream Health, Inc. Head and neck imager

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DE1541126A1 (de) 1969-09-04
BE687215A (enrdf_load_html_response) 1967-03-01
DE1541126B2 (de) 1970-10-08
SE346690B (enrdf_load_html_response) 1972-07-17

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