JPH0216355Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a frame device for 8-cut, 6-cut, 4-cut, etc. film used during X-ray photography, and more specifically, a cassette exclusively for 4-cut film (note: The present invention relates to a frame device for X-ray imaging developed in connection with a cassette exclusively for large-sized film (or a cassette exclusively for large-sized film, such as a large-sized film cut into four pieces, etc.).

Traditionally, X-rays were taken depending on the size of the affected area, etc.
Each used its own cassette. However, when using dedicated cassettes in this way, it goes without saying that cassettes of various sizes must be prepared, and therefore the storage space also needs to be of a corresponding size. For cases such as wrist joints, knee joints, etc., where 8 pieces of film are usually sufficient, and the joints are cut in the front direction, inward direction,
When it is necessary to take pictures from four directions (left and right, etc.), I go to the storage area to retrieve a special cassette containing 8 pieces of film for each direction, and return the film that has been taken. Indispensable (Note,
When placing items that have not yet been imaged or images that have already been imaged in the area to be imaged, they may be exposed to X-ray rays. ) Therefore, it required a great deal of effort and time.

The present invention was made to eliminate the above-mentioned disadvantages, and the purpose of the present invention is to eliminate not only the entire size of a large film cassette cut into four or more pieces when fitted, It is possible to shoot at 1/2 size vertically or horizontally, and at 1/4 size at the four corners, so there is no need to go back and forth to the cassette storage location each time when shooting 1/2 size or 1/4 size. The purpose of this invention is to provide a frame device for X-ray photography that can reduce and save labor and time by that amount. To provide frame removal equipment.

Next, an embodiment of the present invention capable of achieving the above object will be described in detail with reference to the accompanying drawings.

1 indicates a rectangular frame main body, with an annular upper edge 1
1 and an annular circumferential edge 12. 2 is an upper plate 21 in the long edge direction, an upper plate 22 in the short edge direction, and an outer plate 2
3, an outer plate 23 is fixed (for example, by spot welding means) to the annular circumferential edge 12 at the four corners of the frame body 1, and the annular upper edge 11 and the upper plate 21 in the longitudinal direction Short edge direction upper plate 22
A gap g is formed between them as shown in FIG.

Reference numeral 3 indicates a shielding plate for the short side, and 4 indicates a shielding plate for the long side. The holding frame is formed to be 1/2 of the area, and when both of them are partially overlapped (it is also possible for either of them to be on the bottom), it is movable left and right, movable back and forth, and removable, and in the above-mentioned gap. 2 so that it can be held. Reference numeral 5 denotes a cassette for a large film cut into four or more pieces, which is removably fitted into the frame body 1.

In the configuration described above, an X-ray beam is projected to the location where the short side direction shielding plate 8 and the long side direction shielding plate 4 are not located, that is, the lower right corner in FIG. Slide the direction shielding plate 4 toward you to take a photo at the upper right corner, slide the short side direction shielding plate 3 to the right to take a photo at the upper left corner, slide the long side direction shielding plate forward to take a photo at the lower left corner, Either the direction shielding plate 3 or the long side direction shielding plate 4 can be removed to take an image at 1/2 scale, or both can be removed to take an image at full film size.

Since the present invention is as described above, when a cassette with a size of 4 or more pieces is fitted, it is possible to take pictures at full size, 1/2 size vertically and horizontally, and 1/4 size. Therefore, the time and effort required to travel back and forth to the cassette storage location each time a photograph is taken can be eliminated, and the space required for the cassette storage location can also be reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the device of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a plan view of a short side shielding plate, and Fig. 3 is a plan view of a short side shielding plate.
The figure is a plan view of the long-side shielding plate, and FIG. 4 is an enlarged cross-sectional view taken along the - line in FIG. 1. 1... Taking frame body, 11... Annular upper edge, 2... Holding frame,
3... Shielding plate for short side direction, 4... Shielding plate for long side direction, 5...
Cassette,...gap.

Claims (1)

[Scope of Claim for Utility Model Registration] At the four corners of the rectangular frame main body, which is configured to be able to fit four or more large film cassettes,
The holding frame is fixed with a gap between it and the annular upper edge constituting the frame body, and a short-side shielding plate and a long-side shielding plate, which are half the area of the frame body, are installed. , 1/2 A frame device for X-ray imaging, characterized in that it is provided so as to be movable left and right and back and forth along an annular upper edge in a state where the areas are perpendicular to each other, and to be removable.