JPH0610365Y2 - X-ray film package - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package in which a film used for X-ray photography is enclosed, and more particularly to an X-ray film package suitable for dentistry.

[0002]

2. Description of the Related Art An X-ray film package is constructed by encapsulating an X-ray film in a bag made of a sheet that blocks X-rays but transmits X-rays, for example, a synthetic resin sheet. There are various forms of such an X-ray film package, but as a convenient package for development processing after X-ray photography, for example, an X-ray film as disclosed in JP-A-61-156114. Packages have been proposed. This will be described with reference to the drawings.

FIG. 2 is a plan view of the basic structure of a dental X-ray film package, and FIG. 3 is a sectional view taken along line III-III shown in FIG. In each drawing, 1 is a dental X-ray film (hereinafter, simply referred to as a film), and 2 is a first sheet having a peripheral edge slightly larger than the peripheral edge of the film 1 and covering the lower surface of the film 1. Reference numeral 3 denotes a second sheet which covers the other portion of the upper surface of the film 1 while leaving the remaining portion 1a near the right end portion of the film 1 in the drawing, and the upper and lower portions thereof and the left peripheral edge of the drawing are the first sheet. It has almost the same size as 2. Reference numeral 4 denotes a third sheet that covers the second sheet 3 and the remaining portion 1a of the film 1, and the upper, lower, and right peripheral edges of the drawing are the first sheet.
The sheet 2 has substantially the same size as the sheet 2. However, the left edge portion 4d of the third sheet 4 in the drawing is the first sheet 2
2d and the edge 3d of the second sheet 3 are slightly shorter. The edge 2a of the first sheet 2 and the edge 4a of the third sheet 4 are welded together, and the edges 2b and 2 of the first sheet 2 are
c, edges 3b, 3c of the second sheet 3 (none of the edges appear in the figure), edges 4b, 4 of the third sheet 4.
c is welded, and further the edge portion 2d of the first sheet 2 and the edge portion 3d of the second sheet 3 are welded. The first sheet 2, the second sheet 3 and the third sheet 4 may be formed by folding one sheet.

In the above structure, the lower surface of the film 1 is covered with the first sheet 2, and the upper surface is covered with the second sheet 3 and the third sheet.
Covered with sheet 4. Then, the film 1 communicates with the outside through the gap between the second sheet 3 and the third sheet 4. With respect to such a basic configuration, it is possible to prevent light rays and moisture from entering and to be convenient for development processing after X-ray photography.
A passage is formed by the second sheet 2 and the third sheet 4. This will be described with reference to FIGS. 3 and 5.

FIG. 4 is a plan view of a conventional dental X-ray film package, and FIG. 5 is a sectional view taken along line VV shown in FIG. In each figure, the same parts as those shown in FIGS. 2 and 3 are designated by the same reference numerals. Reference numerals 5 and 6 are a first welding portion and a second welding portion for welding the second sheet 3 and the third sheet 4, respectively. The first welded part 5 is formed from the vicinity of the corner of the edge 4d of the third sheet 4 to the lower edge 2c, 3
formed by an inclined line 5a extending obliquely toward c and 4c, and a fold line 5b which is continuous with this inclined line 5a and which is folded upward near the remaining portion 1a of the film 1 and reaches the edge 4b. There is. The second welded portion 6 has an inclined line 6a which is substantially parallel to the inclined line 5a of the first welded portion 5 and a sloping line 5b of the first welded portion 5 which is continuous with the inclined line 6a.
And a turn-back line 6b which is turned back below the turn-around point and reaches the edge 4c. Inclined line 5
a, 6a The second sheet 3 along the folding lines 5b, 6b
And the third sheet 4 are welded together.

Reference numeral 7 is a passage formed between the slanted line 5a and the slanted line 6a, and 8 is an open portion where the passage 7 ends by folding back the folding line 6b. Reference numeral 9 denotes a blocking portion provided in the middle of the passage 7, which is formed by crossing the passage 7 and adhering the second sheet 3 and the third sheet 4 with an adhesive having a weak adhesive force.

As is apparent from the above structure, the formation of the first welded portion 5 and the second welded portion 6 allows the film 1 and the outside to communicate with each other only through the passage 7.
The film 1 is completely blocked by the blocking portion 9 formed in the passage 7, and is sealed by the first sheet 2, the second sheet 3 and the third sheet 4.

Using this dental X-ray film package, X
After the line photography, the developing process is performed as follows. That is, the developer is injected into the syringe and the needle is inserted into the passage 7. At this time, since the edge portion 4d of the third sheet 4 is formed slightly shorter than the edge portion 3d of the second sheet 3, the entrance of the passage 7 is also clear, and insertion of the needle is extremely easy. . As the insertion of the needle proceeds, the blocking portion 9 bonded with an adhesive having a weak adhesive force is immediately peeled off and the passage 7 is opened. When the needle is further inserted, the tip of the needle passes through the passage 7 and reaches the opening 8. When the developing solution is released when the tip of the needle reaches the open portion 8, the developing solution enters between the second sheet 3 and the film 1 from the remaining portion 1a of the film 1 and thereby the development is performed. The fixing solution is also injected by the same means. After the development processing, the film 1 can be easily taken out by peeling off the third sheet 4.

[0009]

The above-mentioned conventional dental X-ray film package is, as described above, developed after X-ray photography,
It has a convenient structure for fixing. However, when injecting the treatment liquid, it is necessary to push open the blocking portion 9 at the tip of the injection body, and even if an adhesive having a weak adhesive force is used for the blocking portion 9, the insertion of the injection body is not smooth. Can not escape. In particular, when a syringe is used as the injector, there is a risk that the tip of the needle may break through the second sheet at the blocking portion 9 and damage the film 1.

In order to avoid such a danger, the blocking portion 9 is not formed, both ends of the passage 7 are open ends, and the second sheet 3 and the third sheet 4 made of a flexible synthetic resin are formed. Proposals have been made to prevent the invasion of light rays and moisture by the adhesive force, but there is a possibility that they cannot be reliably blocked when the light rays are strong or there is a lot of moisture.

An object of the present invention is to solve the above-mentioned problems in the prior art and to smoothly insert an injection body of a developing solution, and to sufficiently block light rays and moisture. To provide.

To achieve the above object, the present invention provides an X
X-ray film, a first sheet of flexible synthetic resin that covers the entire surface of one side of the X-ray film, and a second sheet of flexible synthetic resin that covers the other surface of the X-ray film, leaving a portion thereof. And a third sheet of a flexible synthetic resin that covers the remaining portion of the X-ray film and the second sheet, the first sheet, the second sheet and the third sheet. In an X-ray film package that encloses the X-ray film by sealing the sheet along the peripheral edge of the X-ray film, by welding the second sheet and the third sheet, one of Forming a passage opened in a portion of the X-ray film not covered with the second sheet and closed on the other side, and providing a cutting line on the third sheet forming the passage Is characterized by.

[0013]

After the X-ray photography, an injector such as a syringe is inserted into the passage through the cutting line, and the developing solution is injected through the passage. In this case, since there is no blocking part in the passage, the injection body can be inserted smoothly without any catch.
Further, since the cutting line is formed by simply making a cut in the third sheet forming the passage, both cutting edges of the third sheet are closely joined after cutting and the second sheet forming the passage is formed. Due to the adhesiveness between the second sheet and the third sheet, the penetration of light rays and moisture is sufficiently prevented.

[0014]

【Example】

Hereinafter, the present invention will be described with reference to the illustrated embodiments. Figure 1
1 is a plan view of a dental X-ray film package according to an embodiment of the present invention. In the figure, the same parts as those shown in FIGS. 4 and 5 are designated by the same reference numerals, and the description thereof will be omitted. 11 and 12 are welded portions for welding the second sheet 3 and the third sheet 4,
12a and 12b are inclined lines of the welded parts 11 and 12, 11b,
Reference numeral 12b is a folded line of the welded portions 11 and 12, and corresponds to the welded portions 5 and 6, inclined lines 5a and 6a, and folded lines 5b and 6b shown in FIG. 4, respectively. Reference numeral 13 is a welded portion continuous with the welded portions 11 and 12, and 14 is a passage formed by the welded portions 11, 12, and 13 by the second sheet 3 and the third sheet 4. The passage 14 differs from the conventional passage 7 shown in FIGS. 4 and 5 in that the opposite end of the open portion 8 is sealed by the weld 13. 15 is a third forming the passage 14
2 is a cutting line provided on the sheet 4. This cutting line 15
Is formed by simply cutting the third sheet 4 along the width direction of the passage 14.

When the teeth are subjected to X-ray photography using the dental X-ray film package shown in FIG. 1 and development processing is performed, the tip of the injector such as a syringe containing the treatment liquid is cut. The line 15 is inserted into the passage 14, and the treatment liquid is injected into the opening 8 through the passage 14 or directly. As a result, the processing liquid penetrates into both surface portions of the film 1 through the opening portion 8 and the developing processing is performed. After the development processing, the third sheet 4 is peeled off to take out the developed film 1.

As described above, in this embodiment, since the passage whose one end is sealed is formed and only the cutting line is provided on the upper sheet of the passage, and the cutoff portion is eliminated, the passage is inserted into the passage of the injection body. Can be done smoothly. In addition, since the cutting line is formed by cutting the sheet, both ends of the cut are closely contacted after cutting, and in combination with the adhesiveness of each sheet forming the passage, the penetration of light rays and moisture from the passage is sufficiently prevented. can do.

In the above description of the embodiment, the cutting line 15
Has been described with reference to an example in which it is formed in the width direction of the passage 14, but the cutting line may be in the direction along the passage 14 or in the direction that diagonally crosses the passage 14. Further, in the illustrated embodiment, the length of the cutting line 15 is set to be substantially the same as the width of the passage 14, but it should be shorter than the illustrated case as long as the tip of the injection body can be inserted. You can also In addition, although the dental X-ray film packaging body has been described in the above description of the embodiments, the present invention is not limited to the dental X-ray film packaging body and can be applied to the X-ray film packaging 1 for other purposes.

[0018]

As described above, according to the present invention, one end of the passage formed by the second sheet and the third sheet is sealed, and the cutting line is provided in the third sheet forming the passage. In addition, the injection body can be smoothly inserted into the passage.
In addition, since the cutting line is formed by cutting the sheet, both ends of the cut are closely contacted after cutting, and in combination with the adhesiveness of each sheet forming the passage, the penetration of light rays and moisture from the passage is sufficiently prevented. can do.

[Brief description of drawings]

FIG. 1 is a plan view of a dental X-ray film package according to an embodiment of the present invention.

FIG. 2 is a plan view of a basic configuration of a dental X-ray film package.

3 is a cross-sectional view of the dental X-ray film package shown in FIG.

FIG. 4 is a plan view of a conventional dental X-ray film package.

5 is a cross-sectional view of the dental X-ray film shown in FIG.

[Explanation of symbols]

 1 Film 2 1st sheet 3 2nd sheet 4 3rd sheet 11, 12, 13 Welding part 14 Passage 15 Cutting part

Claims (1)

[Scope of utility model registration request] 1. An X-ray film, and a first sheet of a flexible synthetic resin covering the entire one surface of the X-ray film,
A second sheet of flexible synthetic resin that covers the other surface of the X-ray film, leaving a portion thereof, and a second sheet of flexible synthetic resin that covers the remaining portion of the X-ray film and the second sheet. 3 sheet, and an X-ray film package encapsulating the X-ray film by sealing the first sheet, the second sheet and the third sheet along the periphery of the X-ray film. In the body, by welding the second sheet and the third sheet, a passage is opened, one of which is opened in a portion of the X-ray film not covered by the second sheet and the other of which is sealed. An X-ray film package, which is formed and is provided with a cutting line on the third sheet forming this passage.