JPH10118054A - Cassetteless x-ray fast shooting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a small and light cassetteless X-ray fast shooting apparatus with a simple conveying mechanism. SOLUTION: In a cassetteless X-ray fast shooting apparatus using a carrier 9 between an ejection or carry-in position A of an X-ray film and a photographing position B thereof, the carrier 9 comprises a case body for conveying to movably hold an X-ray film holder 5 for photographing, holding and ejecting or carrying-in operation of the X ray film. The carrier 9 is provided with a pair of guide grooves with a specified shape. Thus, a vertically moving drive of the X-ray film holder 5 is utilized to set up a photographing position, a holding position and an ejection or carry-in position of the X-ray films.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette-type radiography apparatus provided in a medical X-ray fluoroscopy table, and more particularly, to a miniaturized and light-weight movable section for positioning an X-ray film during radiography. The present invention relates to a cassette X-ray radiography apparatus for an X-ray fluoroscopy table suitable for reducing the size of a fluoroscopy table and expanding the range in which a subject can be X-ray fluoroscopy.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional X-ray fluoroscopy table has a cassette X-ray radiographing apparatus 1, a four-section X-ray film supply magazine 2, a large-angle X-ray film supply magazine 3,
And a photographed X-ray film storage magazine 4 for storing photographed X-ray films. Further, instead of the large-angle X-ray film supply magazine 3, a large-section X-ray film supply magazine (not shown) can be mounted. A cassette X-ray radiography apparatus that can use such three-size X-ray films has become widespread.

When taking an image with the X-ray fluoroscopy table, any one of the selected X-ray films is transferred from the X-ray film supply magazine to a suitable X-ray film transport mechanism (not shown). It is transported to the film holder 5. The X-ray film holder 5 is provided with two intensifying screens for increasing the fluorescent action of X-rays, and the X-ray film is conveyed and held between the screens. Then, while observing the X-ray fluoroscopic image using the X-ray fluorescence intensifier tube 6 on the monitor of the operation room via the X-ray television 7, the X-ray fluoroscopic imaging table is moved to position the X-ray imaging site of the subject 8. . At the time of X-ray fluoroscopic image observation, as shown in FIG. 8, the X-ray film holder 5 is the same as the X-ray film holder 5 at the time of X-ray imaging outside the X-ray irradiation range where X-ray fogging does not occur. In the standby state (position A) on the dimensional plane, the imaging apparatus moves to the X-ray imaging position B in the X-ray irradiation range according to the imaging command, and performs X-ray imaging.

After the photographing, the X-ray film holder 5 returns to its original position and is three-dimensionally inclined as shown in FIG. 6, and the photographed X-ray film is transported by the transport mechanism. It is held by a carrier 9 in which a lateral direction (X
Direction) to move. The vertical (Y-direction) movement has been performed for the entire carrier 9.

As shown in FIG. 7 (a is a state in which the X-ray film holder is raised, FIG. B is an original state, and FIG. A lifting lever rotating spring 52 and a lifting / tilting lever for generating a force for constantly pushing up the X-ray film holder 5 via the respective levers 51, 53. The structure has a rotary spring 54. Then, the X-ray film holder 5 can be raised and lowered and tilted by rotating the raising and lowering levers 51 and 53 (Japanese Patent Laid-Open No. Hei 8-1314).
No. 26).

The operation of ejecting and carrying X-ray film into the X-ray film holder 5 is described in
Since it is described in detail in JP-A-131426, the description is omitted here.

[0007]

SUMMARY OF THE INVENTION As a result of studying the above prior art, the present inventor has found the following problems.

In the case of the structure shown in FIGS. 6 and 8, the X-ray film holder 5 reciprocates between the photographing position 5a and the standby position 5b in a plane. Need to be done out of range.
In other words, in order to discharge and carry in the X-ray film in the X-ray film holder 5, it is necessary to create a discharge and carry-in state 5c in another space in addition to the imaging state 5a and the standby state 5b. In order to create these three states, the transport mechanism is also plural.

Further, since the photographing position 5a and the standby position 5b are on the same plane, the maximum X-ray film size usually used in a cassette-type X-ray fluoroscopy table is a large angle. The size of the line speed photographing apparatus must be at least as large as two large-angle X-ray films.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cassette-less X-ray radiography apparatus with a simple, small, and lightweight transport mechanism.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0012]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

A cassette X using a carrier between a discharge position of the X-ray film and a photographing position of the X-ray film.
A linear moving device, wherein the carrier comprises a transfer housing for movably holding an X-ray film holder for photographing, waiting, discharging and carrying in the X-ray film, and a pair of guide grooves having a predetermined shape in the carrier. Is provided, and a photographing position, a standby position, and a discharge carry-in position of the X-ray film are created using the vertical movement drive of the X-ray film holder.

According to the above means, a pair of guide grooves having a predetermined shape are provided in the carrier, and the photographing position, the standby position, and the discharge carry-in position of the X-ray film are set by utilizing the vertical movement drive of the X-ray film holder. By creating the X-ray film, a plurality of mechanisms for creating the three positions of the imaging position, the standby position, and the discharge / injection position are required only by one, and the installation space is also reduced, so that the transport mechanism is simple, small, and lightweight. A cassetteless radiography apparatus is obtained.

[0015]

Embodiments of the present invention (embodiments) will be described below in detail with reference to the drawings. In all the drawings for describing the embodiments of the present invention, components having the same functions are denoted by the same reference numerals, and their repeated description will be omitted.

(Embodiment 1) FIG. 1 is a top schematic plan view showing the schematic configuration of a cassetteless X-ray radiography apparatus according to Embodiment 1 of the present invention (embodiment), and FIG. FIG. 3 is an enlarged perspective view showing the configuration, and FIG. 3 is a diagram for explaining the operation of the cassette X-ray radiography apparatus of the first embodiment.
1 to 3, reference numeral 1 denotes a cassette X-ray radiography apparatus, 2 denotes a four-section X-ray film supply magazine, 3 denotes a large-angle X-ray film supply magazine, 4 denotes a photographed X-ray film storage magazine, and 5 denotes an X-ray film. A holder 9 is a carrier composed of a transport housing for movably holding an X-ray film holder 5 for photographing, waiting, discharging, and carrying in the X-ray film.
Is a pair of guide grooves (rails) provided in the carrier 9,
Reference numeral 10 denotes a transport member for moving in the vertical direction (Y direction), 10A denotes a fixing member for connecting the X-ray film holder 5 and the transport member 10 for vertical direction, and 10B denotes a transport member for moving in the vertical direction.
A fixing member for connecting a driving belt for moving the X-ray film holder 5 in the vertical direction (Y direction); and 11, a driving belt for moving the X-ray film holder 5 in the vertical direction (Y direction) , 12 is a driving motor for driving the driving belt 11, and 13 is the carrier in the lateral direction (X direction).
Drive belt for moving the carrier 9A to the carrier 9
Fixing member for connecting the driving belt 13 and the
Denotes a drive motor for driving the drive belt 13, 15, 1
Reference numeral 6 denotes a support member for the carrier 9.

As shown in FIGS. 1 and 2, the cassette X-ray radiography apparatus of the first embodiment uses a carrier 9 between an X-ray film discharge / load position A and an X-ray film photographing position B. In the cassette X-ray radiography apparatus 1, the carrier 9 is composed of a transporting housing that movably holds an X-ray film holder 5 that shoots, waits for, and discharges and loads an X-ray film. A guide groove (rail) 9A having a predetermined shape is provided, and an X-ray film photographing position, a standby position, and a discharge carry-in position are created by using the vertical (Y-direction) movement drive of the X-ray film holder 5.

As shown in FIG. 2, the shape of the pair of guide grooves 9A having a predetermined shape is X at the standby position and the discharge / inlet position.
The line film holder 5 is formed in an L-shape with an obtuse angle θ interposed therebetween so as to be inclined downward.

The X-ray film holder 5 is slidably held at four front and rear portions on the guide groove 9A, and is fixed to a vertical moving carrier 10 by a fixing member 10A to move in the vertical direction. It is possible. The X-ray film holder 5 is connected to the vertical direction (Y
(Direction) The state of the X-ray film photographing position B, the standby position, and the discharge / injection position A are made according to the position of the drive unit for movement. FIG. 1 shows a state in which the X-ray film holder 5 is at the discharge / in position A.

Further, the X-ray film holder 5 is located at a position just before the upper and lower lids thereof are opened to discharge and carry in the X-ray film, that is, a vertical moving carrier for moving the X-ray film in the vertical direction (Y direction). A position where the X-ray film holder 10 is located at a position from the imaging position B side of the X-ray film shown in FIG.

The carrier 9 is provided with the support members 15, 16
And is slidably supported by the driving belt 13 and fixed to the driving belt 13 by a fixing member 13A, and is movable in the lateral direction (X direction).

As the X-ray film holder 5, a known one disclosed in the above-mentioned JP-A-8-131426 is used.

Next, the operation of the cassette X-ray radiographic apparatus of the first embodiment will be briefly described.

First, as shown in FIG. 3, the upper and lower lids of the X-ray film holder 5 are opened, and one of the four-section X-ray film supply magazine 2 and the large-angle X-ray film supply magazine 3 is selected ( For example, a quadrant X-ray film supply magazine 2
), Take out the X-ray film (for example, a quarter-cut X-ray film) from the selected X-ray film supply magazine, load it into the X-ray film holder 5, and close the upper and lower lids.

Next, as shown in FIG. 2, the X-ray film holder 5 loaded with the X-ray film is moved by the vertical moving carrier 10 and the driving motor 12, and the X-ray film photographing position B Set to. At this position, for example, the first shooting of the divided shooting is performed. Next, the X-ray film holder 5
Is moved in the horizontal direction (X direction) by the drive motor 14 to perform the second photographing of the divided photographing.
The same operation is performed to perform four-division shooting. When the photographing is completed, the X-ray film holder 5 is returned to the discharge / in position A, the photographed X-ray film in the X-ray film holder 5 is taken out, and stored in the photographed X-ray film storage magazine 4.

With such a configuration, the X-ray film holder 5 can be placed on the carrier 9 at the standby position and the discharge / inlet position.
Is formed in an L-shape (a pair of predetermined shapes) sandwiching an obtuse angle so that the X-ray film holder 5 is inclined downward. By creating the imaging position B, the standby position of the X-ray film and the discharge / in position A, only one transport mechanism is required to create the three states of the X-ray film imaging position B, the standby position and the discharge / in position A. In addition, since the installation space is reduced, it is possible to obtain a compact and lightweight cassette X-ray radiography apparatus with a simple transport mechanism.

(Embodiment 2) FIG. 4 is an enlarged perspective view showing the configuration of a carrier portion of a cassetteless X-ray radiography apparatus according to Embodiment 2 (Example) of the present invention, wherein 5B is an X-ray film holder, and 9B is The carrier 9C is a linear guide groove.

As shown in FIG. 4, the cassette X-ray radiography apparatus according to the second embodiment of the present invention is configured such that the carrier 9 in the first embodiment is a flat carrier 9B and a pair of L-shaped carriers shown in FIG. The guide groove 9A is a linear guide groove 9C.

With this configuration, it is possible to obtain a cassette X-ray radiography apparatus with a simpler, smaller, and lighter transport mechanism.

As described above, the invention made by the present inventor is:
Although specifically described based on the embodiments of the present invention, the present invention is not limited to the embodiments of the present invention, and it is needless to say that various modifications can be made without departing from the gist of the present invention. .

[0031]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

The carrier is provided with a pair of guide grooves having a predetermined shape, and a X-ray film photographing position, a standby position, and a discharge / injection position are created by utilizing the vertical movement drive of the X-ray film holder. A single, multiple mechanism for creating three states of X-ray film photographing position, standby position, and discharge / injection position, and the installation space is also reduced. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic plan view seen from above showing a schematic configuration of a cassetteless radiography apparatus according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a configuration of a carrier part of FIG.

FIG. 3 is a diagram for explaining the operation of the cassette X-ray radiography apparatus of the first embodiment.

FIG. 4 is an enlarged perspective view showing a configuration of a carrier portion of the cassetteless X-ray radiography apparatus according to Embodiment 2 (Example) of the present invention.

FIG. 5 is a schematic diagram showing a schematic configuration of a conventional X-ray fluoroscopic table.

FIG. 6 is a schematic plan view illustrating a schematic configuration of a conventional cassette X-ray radiography apparatus.

FIG. 7 is a diagram illustrating a configuration of an X-ray film holder according to the first embodiment.

FIG. 8 is a diagram for explaining the operation of a conventional cassette X-ray radiography apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cassette telescopic X-ray copying apparatus 2 quarter-cut X-ray film supply magazine 3 large-angle X-ray film supply magazine 4 photographed X-ray film storage magazine 5 X-ray film holder 9, 9B carrier 9A, 9C A pair of guide grooves (rails) 10 Conveying body for vertical movement 10A, 10B, 13A Fixing member 11, 13 Driving belt 12, 14 Driving motor 15, 16 Carrier support member 51 Lifting lever 52 Spring for raising / lowering lever rotation 53 Lifting / tilting lever 54 Lifting / tilting Lever rotation spring

Claims (1)

[Claims] 1. A cassette X-ray radiography apparatus using a carrier between an X-ray film discharge / load position and an X-ray film imaging position, wherein the carrier performs X-ray film shooting, standby, discharge / load. And a pair of guide grooves of a predetermined shape are provided in the carrier, and the X-ray film holder is moved by using a vertical movement drive of the X-ray film holder. Shooting position,
A cassettes X-ray radiography apparatus for creating a standby position and a discharge / inlet position.