US2789231A - Appliance for radiographic representation of sections of the body - Google Patents

Appliance for radiographic representation of sections of the body Download PDF

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Publication number
US2789231A
US2789231A US360413A US36041353A US2789231A US 2789231 A US2789231 A US 2789231A US 360413 A US360413 A US 360413A US 36041353 A US36041353 A US 36041353A US 2789231 A US2789231 A US 2789231A
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US
United States
Prior art keywords
support
axis
appliance
film
sections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US360413A
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English (en)
Inventor
Dumer Johann Hans
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.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application granted granted Critical
Publication of US2789231A publication Critical patent/US2789231A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral

Definitions

  • Appliances for transverse tomography of the human body are already known in which an object support and a film support are used which are both rotated at the same speed.
  • the coupling of the movements has in this case been produced hitherto by mechanical means.
  • the film support has to be capable of easy adjustment horizontally, vertically and angularly, there have been produced constructions which are not only complicated and expensive, but in which also defects in the synchronism of the object support and film support were produced, these defects being caused by the inertia of the flexible shaft and friction losses.
  • the subject of the invention is an appliance for radiographic representation of sections of the body, in which these disadvantages are obviated by the fact that for the purpose of transmitting the rotational movement between the object support and the film support, there is provided a rotating field system by which an accurate synchronous running is produced.
  • the film support axis is adjustable perpendicularly of the central beam of the X-ray tube.
  • the object support it is also possible for the object support to be adjustable perpendicularly of the central beam of the X-ray, or the entire appliance or the base thereof can be rocked about an axis parallel to the axis of the object support or of the film support.
  • Figure 1 is an elevation of the complete appliance.
  • Figure 2 is a plan view thereof.
  • Figure 3 shows diagrammatically the means for transmitting movement.
  • Figure 4 is a plan view corresponding to Figure 3.
  • Figures 5, 6 and 7 show diagrammatically, the mutual arrangement of the X-ray tube, the object support and the film support.
  • rollers 2 which support the disc 3 near its periphery and thus provide a steady mounting thereof.
  • a pillar 4 which comprises at its upper end a guideway for a slide 6 which is adapted to be screwed on a spindle 7. The latter is mounted in the guideway 5 and can be turned by means of hand-wheel 8.
  • the slide 6 carries the saddle 9 and also the back-rest 10 shown in section in Figure l.
  • the parts 3 to 10 form the object support, which are fitted on a driver shaft 11 which is mounted in the base 1.
  • the latter carries a gear wheel 12 ( Figure 3), which is driven by an electric motor 14 by way of the pinion 13.
  • Meshing with the gear wheel 12 with a. step-up ratio is a pinion 15 which drives a rotating field system 16 (synchrotransmitter).
  • This rotating field system is connected by a quintuple (five-pole) flexible cable 17 with a second rotating field system 18 (synchro-receiver).
  • Two of the five poles of the rotating field systems 16 and 18 i. e. the two poles of the stators, when the rotors have three phases or the two poles of the rotors, when the stators have three phases
  • the both rotating field systems form a so-called electric shaft.
  • the rotating field system 18 drives the gear wheel 20 which is connected with the film cassette holder 21.
  • the parts 18 to 21 are arranged or mounted in the slide 22 ( Figure l) and form therewith the film holder.
  • the slide 22 is guided on two slide bars 23 ( Figure 2), which are rigidly connected with the two supports 24.
  • the slide 22 is in the case adapted to be screwed on a spindle 25 which can be turned by means of a setting knob 26.
  • the supports 24 are rigidly arranged on a base plate 27 which is connected to two guide rods 28.
  • the latter pass through horizontal sleeves 29, which are connected with a vertical sleeve 30.
  • the latter slides on a vertical guide tube 31 and depends from a chain 32 which is guided over a chain wheel 33 and on which is suspended a counter-weight 34 inside the guide tube 31.
  • the guide tube is detachably connected with base 1.
  • screws which are provided with turning heads 35 and 36, respectively.
  • the central beam drawn 38 from the focal point of the X-ray tube 37 intersects the object axis (axis of the object carrier) 39 and the film sup port axis 40, intersecting the latter at the centre point of the film cassette holder 21.
  • Figure 6 illustrates an incorrect setting.
  • the central beam 38 in this case intersects the axis 39 of the object support, which can always be arranged, but the axis 40 of the film support is outside the central beam.
  • a deyiation of the tube setting which must be exactly degrees with respect to the axis of the central beam, by only one degree, that is to say, to 89 or 91 degrees, already produces an incorrect setting with which it is no longer possible to make a serviceable exposure.
  • the adjustment of the film support in the vertical direc tion and in the direction towards the object support can be effected by displacing the sleeve 30 on the guide tube 31 or the rods 28 in the sleeves 29.
  • the person to be examined takes up a position on the saddle 9, supporting himself against the back-rest 10 and placing his feet on the plate 3.
  • the hand-wheel 8 By operating the hand-wheel 8, the part of the body which is important for the examination can be brought closer to the object support axis 39.
  • a film is now placed in the cassette holder 21 and the motor 14 is set in operation.
  • the object support is rosections by an X-ray tube comprising an object support and film support, each rotatable about its axis, operable means for horizontally adjusting, the vertical axis of the film support relative to its intersection with the central beam of the X-ray tul'ae, a motor rotating the object support, a first rotating electric field system rotated by the object support, a second rotating electric field system driven by the first system and rotating the'filrn support.
  • the operable adjusting means is a screw spindle.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • X-Ray Techniques (AREA)
US360413A 1952-01-15 1953-06-09 Appliance for radiographic representation of sections of the body Expired - Lifetime US2789231A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT728979X 1952-01-15
AT2789231X 1952-11-26

Publications (1)

Publication Number Publication Date
US2789231A true US2789231A (en) 1957-04-16

Family

ID=32327185

Family Applications (1)

Application Number Title Priority Date Filing Date
US360413A Expired - Lifetime US2789231A (en) 1952-01-15 1953-06-09 Appliance for radiographic representation of sections of the body

Country Status (3)

Country Link
US (1) US2789231A (de)
DE (1) DE972794C (de)
GB (1) GB728979A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110358B (de) * 1960-03-19 1961-07-06 Siemens Reiniger Werke Ag Einrichtung fuer Roentgenuntersuchungen
US3132250A (en) * 1959-09-23 1964-05-05 Radiologie Cie Gle Apparatus for driving and controlling the movement of an x-ray tube
US3470429A (en) * 1966-01-06 1969-09-30 United Aircraft Corp System for aligning remote lines of position
US3671745A (en) * 1970-11-05 1972-06-20 Photosystems Corp Three dimensional and/or time sequence x-ray apparatus
US3697751A (en) * 1968-05-29 1972-10-10 Siemens Ag Apparatus for radiation diagnosis
US4000425A (en) * 1975-08-01 1976-12-28 Craig Dwin R Apparatus for producing axial tomograms
US4455668A (en) * 1981-07-24 1984-06-19 Siemens Aktiengesellschaft X-Ray examination apparatus
US20140185772A1 (en) * 2012-12-27 2014-07-03 Nuctech Company Limted Human body inspection system
US20190048636A1 (en) * 2017-08-09 2019-02-14 Ciw Enterprises, Inc. Floating torsion spring tension adjustment system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538114A1 (fr) * 1982-12-20 1984-06-22 Commissariat Energie Atomique Procede et dispositif de tomographie a film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196618A (en) * 1937-12-29 1940-04-09 Medical Supply Ass Ltd X-ray apparatus
US2281931A (en) * 1938-06-27 1942-05-05 Hartford Nat Bank & Trust Co X-ray apparatus
US2300334A (en) * 1939-09-02 1942-10-27 Lorenz C Ag Electromagnetic rotating field system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498381A (de) * 1949-10-08

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196618A (en) * 1937-12-29 1940-04-09 Medical Supply Ass Ltd X-ray apparatus
US2281931A (en) * 1938-06-27 1942-05-05 Hartford Nat Bank & Trust Co X-ray apparatus
US2300334A (en) * 1939-09-02 1942-10-27 Lorenz C Ag Electromagnetic rotating field system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132250A (en) * 1959-09-23 1964-05-05 Radiologie Cie Gle Apparatus for driving and controlling the movement of an x-ray tube
DE1110358B (de) * 1960-03-19 1961-07-06 Siemens Reiniger Werke Ag Einrichtung fuer Roentgenuntersuchungen
US3470429A (en) * 1966-01-06 1969-09-30 United Aircraft Corp System for aligning remote lines of position
US3697751A (en) * 1968-05-29 1972-10-10 Siemens Ag Apparatus for radiation diagnosis
US3671745A (en) * 1970-11-05 1972-06-20 Photosystems Corp Three dimensional and/or time sequence x-ray apparatus
US4000425A (en) * 1975-08-01 1976-12-28 Craig Dwin R Apparatus for producing axial tomograms
US4455668A (en) * 1981-07-24 1984-06-19 Siemens Aktiengesellschaft X-Ray examination apparatus
US20140185772A1 (en) * 2012-12-27 2014-07-03 Nuctech Company Limted Human body inspection system
US20190048636A1 (en) * 2017-08-09 2019-02-14 Ciw Enterprises, Inc. Floating torsion spring tension adjustment system
US10513875B2 (en) * 2017-08-09 2019-12-24 Cornellcookson, Llc Floating torsion spring tension adjustment system

Also Published As

Publication number Publication date
GB728979A (en) 1955-04-27
DE972794C (de) 1959-09-24

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