US3875412A - Apparatus for taking an X-ray picture of the head - Google Patents

Apparatus for taking an X-ray picture of the head Download PDF

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Publication number
US3875412A
US3875412A US377601A US37760173A US3875412A US 3875412 A US3875412 A US 3875412A US 377601 A US377601 A US 377601A US 37760173 A US37760173 A US 37760173A US 3875412 A US3875412 A US 3875412A
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United States
Prior art keywords
pair
arm
head
respect
ray
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Expired - Lifetime
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US377601A
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English (en)
Inventor
Kazuo Hozumi
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Marita Siesakusha KK
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Marita Siesakusha KK
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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
    • A61B6/50—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
    • A61B6/501—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 the head, e.g. neuroimaging or craniography
    • 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
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
    • 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
    • A61B6/51—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 dentistry

Definitions

  • ABSTRACT Apparatus for taking an X-ray picture of the head of a human being which comprises an X-ray source, an X-ray film holder and a head setting device disposed between the source and the holder.
  • the setting device includes an axially aligned pair of ear rods adapted to be inserted into the holes of the opposite ears and means for moving the ear rods relative to the path of the X-ray beam from the source without changing the relative positions of the ear rods.
  • This invention relates to an apparatus for taking an X-ray picture of a desired portion of the head of a human being from a desired angle relative thereto.
  • the primary object of the invention to make it easy to position the head of a patient to be radiographed relative to the direction in which the X-ray beam is projected.
  • an axially aligned, opposed pair of ear rods adapted to be inserted into the holes of the opposite ears of the patient.
  • the distance between the ear rods is adjustable without changing the axial alignment, and there is provided an X-ray source at the outer side of one of the ear rods and an X-ray film at the outer side of the other ear rod in such a manner that the X-ray source and the film can be moved relative to each other while an X-ray picture is being taken.
  • the arrangement of the ear rods makes it possible to determine the relative position of the head to the ear rods, and this position can easily be reproduced when X-ray pictures are repeately taken.
  • the ear rods are adjustable to any desired position, so that it is possible to position the head at any desired angle to the straight line connecting the X-ray source and the film. In other words, it is possible to set the head to any desired position and at any desired angle relative to the direction of projection of the X-ray beam.
  • Another object of the invention is to obtain a clear and sharp X-ray image.
  • one or both of the X-ray source and the X-ray film are movable along the path of the X-ray beam emitted by the X-ray source. If both the X-ray source and the film are thus moved while keeping constant the ratio of the distance between the X-ray source and the portion to be radiographed and the distance between the same portion and the film, the image of that portion is kept stationary on the film while those of the other portions are moved so as to be blurred thereby causing the image of the portion to be radiographed all the more distinctive. In this case, even if along the path of the X-ray beam there are bones in front of and/or at the back of the portion to be radiographed, it is possible to obtain a clear image of that portion.
  • FIG. 1 is a perspective view of one embodiment of the invention
  • FIG. 2 is a partically cut-away perspective view of a portion of FIG. 1;
  • FIG. 3 is a view explaining the radiographing operation of the apparatus of FIG. 1.
  • the device 2 includes an axially aligned, opposed pair of ear rods 3A and 3B so arranged that they are movable toward and away from each other and the axial line connecting them can be positioned to any angle to the path of the X-ray beam.
  • the ear rods are fixed to vertical members 4A and 4B, respectively, made of a material which X'- rays can easily pass.
  • the members 4A and 4B depend from a horizontal arm 5 in such a manner that the vertical members 4A and 4B are slidable along the length of the horizontal arm 5.
  • Operating arms 6A and 68 have their one ends pivotally connected to the upper ends of the vertical support members 4A and 48, respectively, and the opposite ends pivotally connected to the points at the opposite sides of the center of a disk 7 rotatably mounted on the horizontal arm 5.
  • a handle 8 is fixed to the disk 7 so that by turning the handle it is possible to rotate the disk thereby to move the vertical supports 4A and 48 along the length of the horizontal arm 5 toward or away from each other.
  • the head of a patient is placed between the vertical members 4A and 4B, and by turning the handle 8 the members 4A and 4B are moved toward each other as far as the ear rods 3A and 3B thereon are inserted into the holes of the patients ears.
  • the head has now been set at the proper position for taking an X-ray picture of the required portion of the head.
  • the arm 5 has its middle point pivotally supported by the outer end of an arm 10 so that rotation of the arm 5 in a horizontal plane results in a corresponding rotation of the axial line connecting the ear rods 3A and 3B in the same horizontal plane.
  • the arm 10 is so mounted on the upper end of a bracket 11 so as to be movable longitudinally relative to the bracket 11 by means of a handle 12 so that the line connecting the ear rods can be moved in parallel in the same horizontal plane.
  • the bracket 11 has its lower end pivotally mounted on a carriage 13 so that the axial line connecting the ear rods 3A and 3B is rotatable in a vertical plane.
  • the carriage 13 is horizontally slidable on a carriage 14 by means of a handle 15.
  • the carriage 14 is its turn mounted on a base 16 so as to be vertically slidable relative to the latter by means of a handle 17, and the base 16 is fixed to the frame 1. Therefore, by turning the handles 15 and 17 it is possible to move the straight line connecting the ear rods in parallel in the horizontal and vertical planes.
  • the frame 1 is provided with an X-ray source 21 at one side of the head setting device 2 and an X-ray film magazine 22 at the opposite side thereof.
  • the direction in which the X-ray is emitted by the source 21 is parallel with the plane of the frame.
  • the source 21 is supported by a slide 23 which is in turn supported by the frame 1 so that the slide is movable in parallel with the plane of the frame 1.
  • the slidable frame 23 is provided with upper and lower rails 24 secured to the inner surfaces of the upper and lower walls of the frame.
  • a guide block 25 is secured to the frame 1 and provided with rollers 26 which engage the rails 24 of the frame 23.
  • a motor 27 drives one or more of the rollers 26 thereby to move the slidable frame 23.
  • the film magazine 22 is detachably held by a holder 32 which is supported by the frame 1 so as to be slidable relative thereto by a mechanism similar to that by which the slide frame 22 for the X-ray source is moved.
  • the film magazine is movable in the opposite direction to that in which the X-ray source is moved, as will be described later.
  • a jaw 41 has left and right joints 42 and 43, which former is to be radiographed.
  • the joint 42 is positioned at the side of the film 22A while the joint 43 is positioned at the side of the X-ray source 21A.
  • the X-ray tube 21A and the film 22A are at points M and N, respectively, and while the radiographing is being conducted they are moved at a constant speed in the opposite directions as far as points M and N, respectively, when the radiographing operation is finished.
  • the images of the joints 42 and 43 are formed at points A and B, respectively, on the film 22A at point N and when the X-ray tube and the film have been moved to M and N respectively, the same images are formed at A and B, respectively, on the film at N.
  • the distance between B and B is far greater than the distance between A and A. Therefore, the image of the joint 43 is much blurred on the film in comparison with that of the joint 42. In other words, the image of the joint 42 becomes clearer than those of the other portions on the film.
  • the ratio of the distance between the joint 42 and the X-ray tube 21A and the distance between the same joint 42 and the film 22A is kept constant by regulating the speeds of movement of the X-ray tube and the film, the positions A and A coincide so that the image of the joint 42 becomes stationary and sharp and distinctive.
  • the patients head it is possible to set the patients head to any desired angle relative to the direction of projection of the X-ray beam and to obtain a clear and sharp picture of the portion to be radiographed by rendering the image of that portion less blurred than the those of the other portions.
  • a head-position adjusting apparatus suitable for use in combination with an X-ray photographic apparatus, wherein an X-ray beam is transmitted along a substantially horizontal X-ray axis towards an X-ray film intersecting said X-ray axis, to position the head of a person such that it intersects said X-ray axis, X-ray photographic apparatus, said head-position adjusting apparatus comprising:
  • a support arm adapted to be positioned above said X-ray axis
  • a pair of spaced support members mounted on said support arm so as to extend outwardly from said support arm in the general direction of said X-ray axis, and adapted to be moved toward and away from one another along said support arm;
  • a pair of ear rods one of said ear rods being affixed to one of said pair of spaced support members and projecting toward the other of said pair of spaced support members, the other of said ear rods being affixed to the other of said pair of spaced support members and projecting toward said one of said pair of spaced support members, said pair of ear rods defining a straight line, and being movable into and out of the ears of the head of a person when said head is suitably positioned between said pair of spaced support members;
  • ear rod positioning means connected to said pair of spaced support members for simultaneously moving said pair of spaced support members so as to position said pair of ear rods in the ears of the head of a person when said head is suitably positioned between said pair of spaced support members;
  • head positioning means connected to said support arm for selectively positioning said straight line connecting said pair of ear rods: (a) longitudinally with respect to said X-ray axis; (b) transversely with respect to said X-ray axis in both vertical and horizontal planes; (0) arcuately with respect to said X-ray axis in a generally vertical plane; and (d) arcuately with respect to said X-ray axis in a generally horizontal plane.
  • said support arm being rotatably mounted on said first arm such that said straight line connecting said pair of ear rods is selectively positioned adjustable arcuately with respect to said X-ray axis in a generally horizontal plane;
  • said second arm being rotatably mounted on said carriage mechanism such that said straight line connecting said pair of earv rods is selectively positioned adjustable arcuately with respect to said X-ray axis in a generally vertical plane, said carriage mechanism being suitable for selectively position adjusting said straight line connecting said pair of ear rods longitudinally with respect to said X-ray axis and transversely with respect to said X-ray axis in a vertical plane.
  • a head-position adjusting apparatus as claimed in claim 2, wherein said carriage mechanism comprises a first carriage element, a second carriage element and a support block, said first carriage element being mounted on said support block so as to be vertically movable with respect to said support block and said second carriage element mounted on said first carriage element so as to be horizontally movable with respect to said first carriage element, said second arm being rotatably mounted on said second carriage element.
  • a first indicating means associated with said support arm and said first arm for providing a visual indication of the rotational position of said support arm with respect to said first arm;
  • a second indicating means associated with said first arm and said second arm for providing a visual indication of the transverse position of said first arm with respect to said second arm;
  • a third indicating means associated with said second arm and said second carriage element for providing a visual indication of the rotational position of said second arm with respect to said second carriage element;
  • a fourth indicating means associated with said first and second carriage elements for providing a visual indication of the transverse position of said second carriage element with respect to said first carriage element
  • a fifth indicating means associated with said support block and said first carriage element for providing a visual indication of the position of said first carriage element with respect to said support block.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US377601A 1972-07-18 1973-07-09 Apparatus for taking an X-ray picture of the head Expired - Lifetime US3875412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47072249A JPS5149558B2 (enrdf_load_stackoverflow) 1972-07-18 1972-07-18

Publications (1)

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US3875412A true US3875412A (en) 1975-04-01

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US (1) US3875412A (enrdf_load_stackoverflow)
JP (1) JPS5149558B2 (enrdf_load_stackoverflow)
DE (1) DE2335918C3 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032761A (en) * 1974-10-11 1977-06-28 E M I Limited Tomography
US4579117A (en) * 1982-12-28 1986-04-01 Spolyar John L Portable roentgenographic cephalostat
US4760591A (en) * 1986-05-19 1988-07-26 B. F. Wehmer Co., Inc. Cephalostat for cephalometric roentgenography
US6863440B2 (en) * 2001-02-22 2005-03-08 B.F. Wehmer Co., Inc. Head positioning apparatus and method for cephalometric imaging
US20070019853A1 (en) * 2005-07-25 2007-01-25 Eastman Kodak Company Method for indentifying markers in radiographic images
WO2012168756A1 (en) * 2011-06-09 2012-12-13 Trophy Patient head support apparatus for imaging

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489766U (enrdf_load_stackoverflow) * 1977-12-08 1979-06-25
DE3221963A1 (de) * 1982-06-11 1983-12-15 Gerd 6070 Langen Hanel Einstellvorrichtung fuer eine roentgenaufnahmeapparatur zur herstellung reproduzierbarer kiefergelenkaufnahmen
DE3240439C2 (de) * 1982-11-02 1985-08-08 Walter 8000 München Sebald Vorrichtung zur reproduzierbaren Erzeugung von Röntgenbildern
FI68515C (fi) * 1983-01-07 1991-05-14 Instrumentarium Oy Mjukvaevnadsfilteranordning.
EP0262501A1 (de) * 1986-09-26 1988-04-06 Siemens Aktiengesellschaft Vorrichtung zur Positionierung eines Patientenkopfes zur Erstellung von Fernröntgenaufnahmen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254544A (en) * 1939-03-20 1941-09-02 Pltz Machine for making cranial roentgenographs
US2532967A (en) * 1949-01-24 1950-12-05 Thompson Joseph Clay Spinograph method and apparatus
US2903588A (en) * 1958-03-10 1959-09-08 Ralph M Minnich Head positioner
US3025397A (en) * 1959-06-11 1962-03-13 Travis Skull radiography apparatus
US3154683A (en) * 1961-01-16 1964-10-27 William G Blair Apparatus for positioning the head for X-ray examination
US3337730A (en) * 1964-10-28 1967-08-22 Westinghouse Electric Corp Panographic x-ray tubehead assemblage for intra-oral use combined with aligning ear probes
US3521057A (en) * 1968-04-23 1970-07-21 Alva F Morlan Human head immobilization unit for panoramic x-ray machines
US3577160A (en) * 1968-01-10 1971-05-04 James E White X-ray gauging apparatus with x-ray opaque markers in the x-ray path to indicate alignment of x-ray tube, subject and film
US3700894A (en) * 1971-01-18 1972-10-24 Lulu B Counsell Patient positioning apparatus for use in taking medical x-rays

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254544A (en) * 1939-03-20 1941-09-02 Pltz Machine for making cranial roentgenographs
US2532967A (en) * 1949-01-24 1950-12-05 Thompson Joseph Clay Spinograph method and apparatus
US2903588A (en) * 1958-03-10 1959-09-08 Ralph M Minnich Head positioner
US3025397A (en) * 1959-06-11 1962-03-13 Travis Skull radiography apparatus
US3154683A (en) * 1961-01-16 1964-10-27 William G Blair Apparatus for positioning the head for X-ray examination
US3337730A (en) * 1964-10-28 1967-08-22 Westinghouse Electric Corp Panographic x-ray tubehead assemblage for intra-oral use combined with aligning ear probes
US3577160A (en) * 1968-01-10 1971-05-04 James E White X-ray gauging apparatus with x-ray opaque markers in the x-ray path to indicate alignment of x-ray tube, subject and film
US3521057A (en) * 1968-04-23 1970-07-21 Alva F Morlan Human head immobilization unit for panoramic x-ray machines
US3700894A (en) * 1971-01-18 1972-10-24 Lulu B Counsell Patient positioning apparatus for use in taking medical x-rays

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032761A (en) * 1974-10-11 1977-06-28 E M I Limited Tomography
US4579117A (en) * 1982-12-28 1986-04-01 Spolyar John L Portable roentgenographic cephalostat
US4760591A (en) * 1986-05-19 1988-07-26 B. F. Wehmer Co., Inc. Cephalostat for cephalometric roentgenography
US6863440B2 (en) * 2001-02-22 2005-03-08 B.F. Wehmer Co., Inc. Head positioning apparatus and method for cephalometric imaging
US20070019853A1 (en) * 2005-07-25 2007-01-25 Eastman Kodak Company Method for indentifying markers in radiographic images
US7564999B2 (en) * 2005-07-25 2009-07-21 Carestream Health, Inc. Method for identifying markers in radiographic images
WO2012168756A1 (en) * 2011-06-09 2012-12-13 Trophy Patient head support apparatus for imaging
US9192342B2 (en) 2011-06-09 2015-11-24 Carestream Health, Inc. Patient head support apparatus for imaging

Also Published As

Publication number Publication date
JPS5149558B2 (enrdf_load_stackoverflow) 1976-12-27
JPS4929787A (enrdf_load_stackoverflow) 1974-03-16
DE2335918C3 (de) 1978-06-01
DE2335918B2 (de) 1977-10-06
DE2335918A1 (de) 1974-01-31

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