US3535518A - Film positioning arrangement within a body pressure member for x-ray machines - Google Patents

Film positioning arrangement within a body pressure member for x-ray machines Download PDF

Info

Publication number
US3535518A
US3535518A US823349A US3535518DA US3535518A US 3535518 A US3535518 A US 3535518A US 823349 A US823349 A US 823349A US 3535518D A US3535518D A US 3535518DA US 3535518 A US3535518 A US 3535518A
Authority
US
United States
Prior art keywords
film
window
ray
pressure
strip
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
US823349A
Other languages
English (en)
Inventor
Fredi Fischer
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
Original Assignee
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3535518A publication Critical patent/US3535518A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0414—Supports, e.g. tables or beds, for the body or parts of the body with compression means
    • 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
    • G03B42/021—Apparatus for direct X-ray cinematography

Definitions

  • the present invention relates in general to X-ray machines, and more particularly to X-ray machines especially designed for gastrointestinal series exposures.
  • a box or housing was provided within which the film transporting mechanism and the window for the X-rays were accommodated.
  • the film transporting mechanism and the window for the X-rays were accommodated.
  • the front wall of this projection that is the wall portion which presses against the body of the patient, is provided with a window in which a transparent glass or quartz member is located.
  • the magazine containing the film strip for making a series of photographs is arranged so as to be rearwardly spaced from the window through which the exposure is taken with the result that the film is spaced relatively far from the body of the patient, and accordingly, the resulting photographs are rather unsharp.
  • the projecting pressure member is eliminated, not only will it be extremely difficult to obtain photographs of inaccessible body elements, but also, the focus of apparatus, while improved, will still not be entirely satisfactory due to difficulty in getting the radioscopy housing close to the body.
  • the fact that the film is located within the housing means that the film is also spaced inwardly away from the window at least by the thickness of the housing wall and is therefore further spaced from the body of the patient, additionally contributing to the unsharp exposures.
  • a more specific object of the invention is to provide a film positioning mechanism for X ray machines which "ice places the film as closely as possible to the body of the patient whose X-ray photograph is to be taken.
  • Another object of the invention is to provide such a mechanism for use in X-ray machines, which permits the taking of a series of photographs in quick succession.
  • I provide a film positioning mechanism for use in X-ray machiines, which comprises a housing having a projecting pressure member of a material which is impermeable to X-rays, which projecting member is provided with a wall portion adapted to be placed against the body of a patient, such wall portion having a cut-out therein and a transparent window member located in the cut-out.
  • I further provide film supply means arranged in the projecting member itself to one side of the window so as to be shielded by the material of the member and the housing and including a supply of strip-shaped film, and furthermore I provide intermittently operable film takeup means which is located to another side of the window opposite the one side, the strip-shaped film extending from the film supply means to the film take-up means and having a major surface facing the window parallel thereto. Finally, I also provide biasing means for biasing successive in crements of the strip-shaped film into engagement with the window provided in the outside wall of the projecting member, and for doing so in the intervals between intermittent operation of the film take-up means.
  • FIG. 1 is a schematic diagram illustrating the manner in which gastrointestinal series exposures have been obtained with a conventional X-ray apparatus
  • FIG. 2 is a schematic diagram similar to FIG. 1 wherein an X-ray apparatus in accordance with the present invention is utilized;
  • FIG. 3 is a vertical section through a mechanism in accordance with the present invention.
  • FIG. 4 is a rear-view, partly sectioned, of the device shown in FIG. 3.
  • an X-ray apparatus of conventional configuration provides a housing H of a radioscopy mechanism, which includes a film transporting mechanism and possible also a fluorescent screen for direct viewing in addition to other control elements (not shown).
  • the housing H has a projecting member 1' which is designed to press against the body of the patient, as shown, while X-rays from source S pass through the stomach and intestine area of the body and projecting member 1 to the film F within the housing H.
  • the object-film distance d is extremely long, thereby preventing proper focusing.
  • FIG. 2 an X-ray apparatus including a film positioning mechanism in accordance with the present invention
  • the film F is provided within the projecting member 1 in direct contact with the inside of the wall portion of the projecting member 1 pressing against the body of the patient.
  • the object-film distanced in this case becomes absolutely minimum, thereby remarkably improving the focus of the X-ray photograph so that a very clear image is obtained.
  • the projecting member is indicated with reference numeral 1 and has a substantially frustoconical configuration. It is provided with a rail or similar fastening device 21 which is engaged in complementary rails or devices provided on the housing of a movable radioscopy apparatus. The coupling of the rails 21 with their counterparts on the movable radioscopy apparatus establishes the necessary contacts with the electrical switching devices for the X-ray machine, not shown since it forms no part of the present invention.
  • the housing of the X-ray apparatus along with the projecting member 1 consists largely of organic plastic material and is provided with a handle or grip 22 on one wall 23 thereof, this wall 23, for example, being removable so as to make the interior of the projecting member 1 accessible for the insertion and removal of the film.
  • the exterior of the housing is covered with a layer of lead sheet material of approximately 1 mm. thickness, although this thickness can vary and is mentioned here only for purposes of information.
  • the front wall of the projecting member 1, that is that part which is placed into engagement with the body of a patient whose X-ray photograph is to be taken, is provided with a cut-out 4 which may in accordance with conventional practice be approximately 90-by-l20 mm.
  • a flat window member, with a screening plate is indicated with reference numeral 5 and it will be seen that it is provided with a fine grid.
  • a foil 6 can be provided rearwardly of the window member 5 to reinforce the same.
  • a film strip 8, which is coated on both sides thereof, is provided within the projecting member 1 and conventionally has a width of 89 mm., although again this figure is mentioned only for purposes of information.
  • the supply of the film strip 8 is provided on a supply spool 9 and the strip is guided by guide rollers 10 and 11 past the window 5 to a take-up spool 12 which is rotatable by a motor 15 and a conventional gear arrangement 16.
  • the film strip 8 is pressed against the inner side of the window member 5, that is in the illustrated embodiment directly against the reinforcing foil 6.
  • a pressure plate for instance of foam rubber, which is indicated with reference number 14 and whose front face which engages the film strip 8 is covered with a reinforcing foil 6'.
  • the rear of the pressure plate 17 is backed by a support plate 13 which constitutes an end wall of a hollow piston 18 whose opposite end wall is indicated with reference number 19.
  • the piston 18 is guided in a cylinder 14 whose rear wall 24 preferably consists of organic plastic material.
  • the pressure space in the interior of cylinder 14 is indicated with reference numeral 25 and by a suitable arrangement, which is not illustrated because it is entirely conventional and well known to those active in the art, a pressure fluid can be introduced into the interior of the cylinder 14.
  • a conduit 26 may be provided for introducing the pressure fluid into the cylinder 14 and it will be obvious that when the piston 18 moves to the left in FIG. 3 under the influence of such pressure fluid,
  • the provision of the film strip 8 on the two spools 9 and 12 makes possible the use of a long strip so that, if the strip is moved in a stepwise manner past the window member 5, as is provided for in accordance with the present invention, the invention makes it possible to take a relatively long series of X-ray photographs without having to exchange the film magazine.
  • the film strip 8 engages directly the window member 5 through the intermediary of the reinforcing foil 6 which is very thin, so that distortion and lack of sharpness is substantially eliminated by this arrangement.
  • a rubber or plastic bulb or bladder 28 which can be arranged exteriorly of the window member 5 covering the same, and which can be inflated by any suitable device, for instance by hand via an air bulb, and this bladder 28 can be provided for use in such cases when it is necessary to press against certain portions of the body of the patient, for instance if fatty tissue is to be compressed or moved out of the way.
  • the device can be actuated by a remotely located switching control and it will be understood that the taking of the X-ray photographs takes place in the following sequence: firstly, it is determined that X-ray beam is extinguished; secondly, the film strip 8 is advanced from spool 9 to spool 12 by a distance corresponding to the height of the window member 5; thirdly, the piston 18 presses the film strip 8 against the reinforcing foil 6 of window member 5; simultaneously the exposure is taken by generating that X-ray beam for a given period of time; and finally the exposed film portion or increment of the strip 8 is moved upwardly beyond the window member 5 so that it is now protected by the material of housing and projecting member 1 against the adverse influence of X-rays during subsequent exposures.
  • take-up spool 12 is rotated in a take-up sense by the motor 15 via the gear 16, which can advantageously be a worm gear arrangement, and that such advancing of the spool 12 is accomplished intermittently.
  • the entire process, from advance of the film through taking of the exposure and to the extinguishing of the X-ray beam takes approximately 4 seconds with the device illustrated in FIG. 1.
  • piston and cylinder arrangement and its actuation by means of a pressure fluid can be replaced by another suitable mechanism, for instance by springs, electromagnetic devices, or the like. This does not form an essential limitation and has been mentioned here only for purposes of example.
  • Film positioning arrangement for X-ray machines comprising radioscopic housing means opaque to X-rays and a relatively substantially smaller projecting member opaque to X-rays mounted on said housing means for pressing against and manipulating body parts of a patient, said projecting member being provided with an X-ray permeable window having an inner surface; film means located entirely within said projecting member on one side of said window including film supply means for carrying a strip-shaped film; film take-up means for receiving film from said film supply means located at the opposite side of said window so that a film extending from said supply means to said take-up means extends parallel to said inner surface spaced from and facing the same; and pressure means for selectively pressing increments of the film into engagement with said inner surface of said window.
  • said pressure means comprises a cylinder located in said projecting member on a side of the film remote from said window, and a piston slidably movable in said cylinder toward and into contact with said film for pressing the same against said surface in response to the introduction of a pressure-fluid into said cylinder, and return-spring means permanently urging said piston in a direction away from the film.
  • said film supply means and said film take-up means each include at least one guide member located within said projecting member adjacent said window at respective sides thereof for guiding said film past said window closely adjacent thereto.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US823349A 1965-10-15 1969-05-09 Film positioning arrangement within a body pressure member for x-ray machines Expired - Lifetime US3535518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF47453A DE1217776B (de) 1965-10-15 1965-10-15 Andrucktubus fuer Roentgenaufnahmen

Publications (1)

Publication Number Publication Date
US3535518A true US3535518A (en) 1970-10-20

Family

ID=7101631

Family Applications (1)

Application Number Title Priority Date Filing Date
US823349A Expired - Lifetime US3535518A (en) 1965-10-15 1969-05-09 Film positioning arrangement within a body pressure member for x-ray machines

Country Status (5)

Country Link
US (1) US3535518A (cs)
BE (1) BE686432A (cs)
CH (1) CH458050A (cs)
DE (1) DE1217776B (cs)
NL (1) NL6610084A (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735130A (en) * 1971-07-27 1973-05-22 Gen Electric Diaphragm-type high speed spot film device
US3828196A (en) * 1973-03-08 1974-08-06 Siemens Ag X-ray photographing device
US3940629A (en) * 1974-03-23 1976-02-24 Andreas Schmitzer Device for closing and opening vacuum x-ray film holders
US4171483A (en) * 1969-08-21 1979-10-16 Siemens Ag Device for X-ray diagnosis, including edge shadow-free compression device
US4368996A (en) * 1980-02-02 1983-01-18 The United States Of America As Represented By The United States Department Of Energy Penetrameter positioner for bore-side radiography of tubes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357391A (en) * 1916-07-24 1920-11-02 Freytag Ferdinand Apparatus for taking serial roentgenograms
US2575295A (en) * 1949-05-20 1951-11-13 Patrick C Renner Radiographic apparatus
US2619599A (en) * 1952-02-27 1952-11-25 Charles W Smith Diagnostic pressure application instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357391A (en) * 1916-07-24 1920-11-02 Freytag Ferdinand Apparatus for taking serial roentgenograms
US2575295A (en) * 1949-05-20 1951-11-13 Patrick C Renner Radiographic apparatus
US2619599A (en) * 1952-02-27 1952-11-25 Charles W Smith Diagnostic pressure application instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171483A (en) * 1969-08-21 1979-10-16 Siemens Ag Device for X-ray diagnosis, including edge shadow-free compression device
US3735130A (en) * 1971-07-27 1973-05-22 Gen Electric Diaphragm-type high speed spot film device
US3828196A (en) * 1973-03-08 1974-08-06 Siemens Ag X-ray photographing device
US3940629A (en) * 1974-03-23 1976-02-24 Andreas Schmitzer Device for closing and opening vacuum x-ray film holders
US4368996A (en) * 1980-02-02 1983-01-18 The United States Of America As Represented By The United States Department Of Energy Penetrameter positioner for bore-side radiography of tubes

Also Published As

Publication number Publication date
DE1217776B (de) 1966-05-26
NL6610084A (cs) 1967-04-17
CH458050A (de) 1968-06-15
BE686432A (cs) 1967-02-15

Similar Documents

Publication Publication Date Title
US3535518A (en) Film positioning arrangement within a body pressure member for x-ray machines
US2077500A (en) Apparatus for the identification of x-ray films
US1357391A (en) Apparatus for taking serial roentgenograms
JPS62227139A (ja) パノラマ式ｘ線断層撮影装置におけるフイルムに記録する方法と装置
US4199687A (en) Sheet film changer
US3080802A (en) Visible photo composer
JPS6255128B2 (cs)
GB1318758A (en) Combined x-ray film changer and x-ray transducer assembly
US4408872A (en) Combined storing, transporting, exposing and processing apparatus for camera
US3735130A (en) Diaphragm-type high speed spot film device
US3452196A (en) Film identification device having an electroluminescent panel built into a camera
US3848133A (en) Roll film radiographic cassette
US2468381A (en) X-ray spot film tunnel
US4104528A (en) Automated mammography apparatus for mass screening
US2026000A (en) Cassette
US2933081A (en) Apparatus for making heart condition surveys
US2695965A (en) Apparatus for production of x-ray images
US1938455A (en) Radiographic apparatus
US3069549A (en) X-ray timing apparatus
US3864563A (en) Apparatus for radiographing the joints of the jaws
US3377914A (en) Methods and apparatus for automatic optical reduction
US2396874A (en) Photographic camera
US3283149A (en) System for changing radiographic plates
US2741963A (en) Photomechanical cameras
US2892089A (en) Radiographic apparatus