JPH0786661B2 - Kasetsuteresu X-ray speed photography device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cassette radiography system for X-ray radiography, and in particular, it requires compactness and good manual operability such as a radiography system for a proximity operation type X-ray fluoroscope. The present invention relates to a technique suitable for a quick shooting device.

[Conventional technology]

In recent years, the X-ray fluoroscopic imaging stand has been replaced with the cassette type, and the one in which the cassette-type X-ray rapid copying apparatus is incorporated is mainly used. This flow is not limited to the remote control type device, but has been extended to the under-table tube type proximity operating type device which is a conventional cassette type. The reason why the cassette type of the proximity operation type device has been delayed is that the cassette type is equipped with a mechanism that allows one film cassette to be loaded for shooting one film and the operator to manually move the cassette. While it is easy to reduce the size and weight, which is indispensable for operability, the cassette cassette type is a supply magazine for loading the film, a storage magazine for taking out the photographed film, and a film for each film from the supply magazine. Since a film take-out / conveyance mechanism must be added, it was inevitable that it would become larger and increase in weight compared to the cassette type.

By the way, the proximity operation type cassette-type X-ray fluoroscope as described above is constructed as shown in FIG. Quick-shooting device 4
Is supported by a quick-shooting device supporting portion 3 connected to a top plate portion 2 which is supported by a base 1 so as to be able to move up and down. The quick-photographing device support portion 3 is supported by the top plate portion 2 so as to be movable in a direction orthogonal to the paper surface of FIG. The quick-shooting device 4 is supported by the quick-shooting device support portion 3 so as to be movable in the direction of arrow B in the figure. Since the quick-shooting device support portion 3 and the quick-shooting device 4 are required to be stopped at the positions where they are positioned, a balance (suspension) mechanism using a weight is required. Although this balance mechanism is already known, the illustration and description thereof will be omitted. However, if the weight of the quick-shooting device supporting portion 3 and the quick-moving device 4 is large, the weight also becomes large, and the moving stroke of each part becomes small. It causes an increase in power.

As a compact and lightweight quick-shooting device, there has been provided a device that integrates the above-mentioned supply magazine and storage magazine, but only a small number of loaded films, a large number of magazine replacements, and only pre-recorded films have been provided. There was a problem in operability such as being unable to take it out. Therefore, as a solution to this problem, a quick-shooting device as shown in FIG. 4 has been announced.

[Problems to be solved by the invention]

The apparatus shown in FIG. 4 comprises a supply magazine 5 and a storage magazine 6.
Is inserted in a direction orthogonal to the top plate surface on which the subject is laid down, or the transport surface of the film supporter 7 inside the quick-copying apparatus. Each magazine is fixed with a predetermined distance between the tip of the magazine and the film transport surface. Such a magazine arrangement is suitable for shortening the overall length (L in the drawing) of the quick-shooting device.

However, the under-table tube type quick-shooting device has the following problems.

(A) When the top plate is in the horizontal position, the magazine is located above the film transport surface, so the operation position is high when taking out or replacing the magazine, and the operability deteriorates.

(B) ... When the top plate is in the horizontal position, the film from the supply magazine is taken out in the direction of gravity, and the film is stored in the storage magazine against gravity, so film transfer problems are likely to occur. .

(C) ... When the fluorescent plate is combined instead of the X-ray television device, the protrusion of the magazine mounting portion becomes an obstacle to the operator.

(D) ... It is difficult to use the quick-copy device by opening it in the direction of arrow C by incorporating the soot key device on the lower surface of the top plate due to the protrusion of the magazine mounting portion.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a compact radiography table which enables an X-ray fluoroscopy table with good manual operability.

[Means for solving problems]

Means for solving the above-mentioned problems are a supporter that conveys an X-ray image recording medium between a radiographing standby position and a radiographing position on a plane parallel to a top plate surface on which a subject is laid down. In a cassette-type X-ray radiography apparatus provided with a supply magazine for stacking and storing X-ray image recording media supplied to the support and a storage magazine for storing captured X-ray image recording media,
A supply magazine provided with a through hole through which the X-ray image recording medium passes from the front side to the back side of the magazine separately from the accommodation space of the X-ray image recording medium, and arranged at a position substantially orthogonal to the transport surface of the holder. The point is that a storage magazine arranged on the back side of the supply magazine is provided substantially parallel to the supply magazine.

[Action]

The X-ray image recording media stacked and housed in a supply magazine placed at a position substantially orthogonal to the transport surface of a holder for transporting the X-ray image recording media are supplied to the support one by one. The X-ray image recording medium that has been transported by the support device and has been subjected to X-ray imaging is discharged from the support device at the imaging standby position and transported so as to cross the supply magazine substantially orthogonally. This photographed X-ray image recording medium passes through the through hole of the supply magazine and is stored in a storage magazine which is arranged on the back side of the supply magazine and substantially parallel thereto.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an X-ray radiography apparatus 40 according to the present invention, showing a cross-sectional view of the positional relationship between a supply magazine 50, a storage magazine 60, and a film supporter 70. The quick-shooting device 40 is a film supporter 70 movably supported in the main body case 41, a film take-out and transport mechanism (not shown), a film holder drive mechanism,
A grid, a split mask mechanism, and the like (some of which may be provided outside the main body case 41), and a controller 80 for the fluoroscopic imaging stand, the quick-shooting device, and the quick-shooting, etc. at the upper left of the drawing. ing. The main body case 41 is formed as an L-shaped case having an internal space, and an opening for mounting the supply magazine 50 and the storage magazine 60 is provided at the position shown in the upper right of the figure. And
When the supply magazine 50 and the storage magazine 60 are mounted, the opening is closed and the inside of the main body case 41 becomes dark. The film supporter 70 has a fulcrum at the left end, and an upper lid 71 and a lower lid 72 are opened and closed for taking in and out the film, and a publicly known one in which an intensifying screen is attached to each of the facing surfaces of the upper lid 71 and the lower lid 72. Is. The film supporter 70 is reciprocally moved between a shooting standby position shown by a solid line and a shooting position shown by a chain line by a film supporter drive mechanism in the main body case 41, and an unphotographed film at a shooting standby position. The film is taken out and replaced by the film take-out and transport mechanism. Storage magazine
Reference numeral 60 is a box-shaped body provided with a movable lid on one surface, and since this type is known, its description is omitted.

Next, the supply magazine 50 will be described with reference to FIGS. 2 and 3. 2 is an external view, and FIG. 3 is a sectional view taken along the line D-D 'in FIG. In the figure, reference numeral 51 is a main body of the magazine, and one side surface thereof is provided with a flange 52 which serves as a mounting and fixing portion to the quick-shooting device 40. A movable lid 53 is guided by a groove 57 formed in the main body 51 and is movable in the direction of arrow EE '. When the movable lid 53 moves in the E direction, the opening 58 of the magazine main body 51 to the film storage space 55 and the space 56 adjacent to the opening 58 and partitioned by the partition wall 59 are exposed. . Sheet-shaped X-ray films F (indicated by two-dot chain lines) are stacked and stored in the film storage space 55.
The space 56 becomes a through hole 56A that traverses the magazine when the movable lid 53 moves to the position shown in the figure. As shown in FIG. 2, the through hole 56A is set to have a longitudinal direction which is the same as or slightly larger than the film storage space 55, and the clearance is set to about 0.5 to 1 cm. Therefore, the through hole
The film can pass through 56A.

Supply magazine 50 and storage magazine 60 formed in this way
And are inserted substantially parallel to the short side of the L-shaped body case 41. Since it is not necessary to provide a space for passing the film between the leading end of the magazine and the main body case 41 unlike the conventional device, a very small gap is kept between the main body case 41 and the magazine front end. ing. For this reason, the total length L of the apparatus is short, and the magazine mounting position can be kept considerably low when the ceiling is horizontal.

Further, even when the quick-shooting device is opened (turned) in the direction of arrow C in FIG. It is clear from the drawings that this can be easily done by appropriately providing a gap between the quick-shooting device and the quick-shooting device support portion, or by removing the magazine, and therefore detailed description thereof will be omitted.

In FIG. 1, reference numeral 90 denotes a fluoroscopic image device in which an X-ray fluorescence multiplier device and an X-ray television camera are combined, but this may be replaced with a fluorescent screen.

Next, the film transport operation in this quick shooting device will be briefly described. Supply magazine with film loaded in the case 41
Attach 50 and storage magazine 60, pull the moving lid of each magazine, and open the lid. Then, in the supply magazine 50, the accommodated film is exposed so as to face the suction pad 101 of the film take-out and transport mechanism, and a through hole 56A is formed above the film accommodating portion. On the other hand,
In the storage magazine 60, an opening is formed toward the transport roller 103. Next, when the film take-out operation is performed by the operation device of the controller 80, only one film contained in the supply magazine 50 is taken out by the suction pad 101, and is transferred to the film support device 70 via the transport roller 42. Sent. After the intensifying screen and the film are brought into close contact with each other by the film support device 70, when the operator gives a quick shooting command from the controller 80,
The film supporter 70 moves to the photographing position and X-ray photographing is performed. When that is completed, the film supporter 70 is returned to the photographing standby position again, and the photographed film is discharged from the film supporter 70 by the transport roller 102, and the through hole of the supply magazine 50 is shown as shown by the arrow of the broken line. Sent to 56A. In order to guide the photographed film from the film support device 70 to the supply magazine 50, a film guide plate may be provided if necessary. Then, the leading end of the film, which has passed through the through hole 56A and has come out to the back side of the supply magazine 50, has the leading end of the transport roller 103.
The film is stored in the storage magazine 60.

When the top plate is horizontal, the film is taken out against the gravity when the film is taken out and stored in the apparatus of the above embodiment, so that the next film is attached to the back side of the film that is temporarily sucked by the suction pad. Also, since the film on the back side that was peeled off by the action of the suction pad easily falls due to gravity, 2
More than one film is less likely to get out of the supply magazine, and when the film is stored, gravity assists the operation to store the film in the storage magazine, so a mechanism to push the film into the storage magazine is added. There is no need to do it.

〔effect〕

As described above, according to the structure arrangement of the magazine of the present invention, the device becomes compact, the manual operability is improved, and the mounting position of the magazine is lowered when the top plate is horizontal,
It is easy to open and close the lid and attach and detach the magazine. Further, the film transportability when the top plate is horizontal is improved, the protrusion of the quick-shooting device on the image device side is reduced, and the operability when seeing through the fluorescent screen and the opening / closing rotation of the quick-shooting device when shooting with the Butkey can be performed. .

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a quick-shooting device according to the present invention, a part of which is shown in section, and FIG. 2 is a perspective view of the supply magazine shown in FIG. Is D- in FIG.
FIG. 4 is a side view showing the outline of a conventional device, which is a D'cross-sectional view. 40 ... Quick-shooting device, 41 ... Main body case, 50 ... Supply magazine, 55 ... Film storage space, 56A ... Through hole, 60 ...
Storage magazine, 70 ... Film support.

Claims (1)

[Claims] 1. A holder for conveying an X-ray image recording medium between a photographing standby position and a photographing position on a surface substantially parallel to a top plate surface on which a subject is laid, and to the holder. In a cassette-type X-ray radiography apparatus having a supply magazine for accommodating supplied X-ray image recording media in a stacked manner and a storage magazine for accommodating photographed X-ray image recording media, an accommodation space for the X-ray image recording media is provided. Is separately provided with a through hole through which the X-ray image recording medium passes from the front side to the back side of the magazine, and is arranged substantially parallel to the supply magazine, which is arranged at a position substantially orthogonal to the transport surface of the holder. A cassette-type X-ray radiography apparatus having a storage magazine arranged on the back side thereof.