JPH0350503Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cassette for storing X-ray film and the like used in an X-ray imaging device.

Usually, in an X-ray imaging apparatus, a cassette is used to load X-ray film. A cassette is used to store an X-ray film, for example, the X-ray film is sandwiched between two intensifying screens (see Utility Model Application No. 56-92142).

When storing the X-ray film between two intensifying screens as described above, press the X-ray film with uniform pressure over the entire surface to bring the intensifying screen and the X-ray film into close contact. It is desirable to store it.
In particular, the sensitizing effect when photographing can be enhanced.

Therefore, as a means of storing the intensifying screen and the X-ray film in close contact with each other, it is possible to attach a thick sponge-like cushion material with high elasticity to the main body or lid of the cassette, or to provide a spring plate (elastic member). Conceivable.

However, even if a thick, elastic sponge-like cushion material is used, the intensifying screen is thin and pliable, so in the case of relatively large cassettes,
If air was trapped between the intensifying screen and the film when the lid was closed, the air could not escape and the adhesion could not be improved.

The present invention has been made to solve the above-mentioned drawbacks, and its object is to provide an X-ray film cassette in which the entire X-ray film is housed in close contact between intensifying screens.

The object of the present invention is to provide an X-ray film cassette in which an intensifying screen and a cushion material are arranged between the cassette main body and a lid.
The cushion material 4 is provided on the cushion material 4 and has a convex center portion, the reinforcing member 9 is provided in contact with the cushion material 4, and the intensifying screen 6 is provided on the cushion material 4 via the reinforcing member 9. and an intensifying screen 7 provided on the lid 2, the intensifying screen 6 and the intensifying screen 7
This is achieved by an X-ray film cassette characterized in that the cassette main body 1 is configured so that the X-ray film is brought into close contact with the X-ray film cassette, and the lid 2 is sandwiched between the cassette body 1 and the cushion material 4 when the lid 2 is closed. .

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view showing a conventional X-ray film cassette.

In the figure, 1 is a cassette main body, and 2 is a lid. The main body 1 and the lid 2 are fixed on one side by a hinge 3 so as to be openable and closable, and when the lid 2 is sealed, a flat container is formed. Ru.

A cushion material 4 having a convex central portion is stuck inside the main body 1. As the cushion material, for example, the cushion material described in Utility Model Registration Application No. 138337/1988 previously filed by the applicant of the present invention can be used.

Reference numeral 5 denotes a frame body for regulating the periphery of the cushion material 4 and facilitating fixation of the cushion material 4, and is fixed to the main body 1. Reference numeral 6 denotes an intensifying screen pasted on the upper surface of the cushion material 4, and is fixed in a shape that corresponds to the shape of the cushion material 4 and is raised high at the center when viewed from each side of the main body 1. 7 is an intensifying screen stuck inside the lid 2. 8 is an X-ray film, and 9 is a reinforcing member.

However, with such a cassette, if the air 10 is trapped in the center of the cassette when the lid of the cassette is closed, the intensifying screen is made thin and flexible, so it dents only in that part and traps the air 10. Since it could not be extruded, the adhesion between the intensifying screen and the film could not be improved.

The inventors conducted sufficient experiments and found that
By providing a reinforcing member between the intensifying screen and the cushion material, a cassette with extremely good adhesion has been obtained.

FIGS. 2 and 3 are cross-sectional views showing an embodiment of the X-ray film cassette according to the present invention.
The figure shows a state in which the lid is open, and FIG. 3 shows a state in which the lid is closed (the state after the cassette is completed).

In order to complete the cassette according to the present invention, it is necessary to
An X-ray film is placed between the main body 1 and the lid 2 shown in the figure, and the lid 2 is closed and fixed to the main body 1. When fixed, the X-ray film 8 is attached to the intensifying screen 6 as shown in FIG.
and 7. In this case, intensifying screens 6 and 7
Even if air is trapped between the intensifying screen 6 and the X-ray film 8, the air is absorbed by the reinforcing member 9 placed between the intensifying screen 6 and the cushion material 4 to increase the bending stiffness of the intensifying screen 6. It is defeated and eliminated by the forces that seek to crush it.

The reinforcing member 9 may be made of any material that is transparent to X-rays, such as paper, cloth, plastic sheet, etc. Further, it may be of a size that can be placed between the intensifying screen and the cushion material, and is preferably attached to the cushion material in order to improve stability.

According to the present invention, since the reinforcing member 9 can increase the bending stiffness of the intensifying screen, air pockets are not generated between the two intensifying screens and the X-ray film sandwiched between them. The intensifying screen and the X-ray film can be stored in close contact with each other.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a conventional X-ray film cassette, and FIGS. 2 and 3 are cross-sectional views showing an embodiment of the X-ray film cassette according to the present invention. 3 shows a state in which the lid is opened, and FIG. 3 shows a state in which the lid is closed. In the figure, 1 is the cassette body, 2 is the lid, 3 is the hinge,
4 is a cushion material, 6 and 7 are intensifying screens, 8 is an X-ray film, and 9 is a reinforcing member.

Claims (1)

[Scope of Claim for Utility Model Registration] In an X-ray film cassette in which an intensifying screen and a cushion material are arranged between the cassette main body and a lid, the central part is formed in a convex shape and is provided on the cassette main body 1. the cushion material 4; and a reinforcing member 9 provided in contact with the cushion material 4.
an intensifying screen 6 provided on the cushion material 4 via the reinforcing member 9; and an intensifying screen 7 provided on the lid 2; A cassette for X-ray film, characterized in that the cassette body 1 is sandwiched between the cassette body 1 and the cushion material 4 when the lid 2 is closed so that the X-ray film is brought into close contact with the cassette body 1.