WO2007123109A1

WO2007123109A1 - X-ray shielding sheet, x-ray shielding clothing, and x-ray shielding glove

Info

Publication number: WO2007123109A1
Application number: PCT/JP2007/058320
Authority: WO
Inventors: Tomoaki Ito
Original assignee: Orient Instrument Computer Co., Ltd.
Priority date: 2006-04-19
Filing date: 2007-04-17
Publication date: 2007-11-01
Also published as: JP2007285971A

Abstract

An X-ray shielding sheet, and X-ray shielding clothing, provided with attention paid to environment; and X-ray shielding gloves excelling in sensation of use. X-ray shielding sheet (10) capable of X-ray shielding includes tin layer (14) consisting of a tin material and copper layer (12) consisting of a copper material being a material whose X-ray shielding effect is higher than that of the tin layer at a frequency band where the X-ray shielding effect by the tin layer is poor. The X-ray shielding sheet (10) may include backside layer (11) consisting of a vinyl sheet, copper layer (12), substratum layer (13) consisting of a vinyl sheet, tin layer (14) and surface layer (15) consisting of a vinyl sheet, wherein all the layers have a thickness of about 50 μm. Accordingly, there have been simultaneously attained securement of the flexibility of X-ray shielding sheet (10) and securement of the X-ray shielding function of copper layer (12) and tin layer (14).

Description

Specification

X-ray blocking sheet, X-ray blocking clothing, and X-ray blocking gloves

Technical field

[0001] The present invention relates to a sheet, clothing, and gloves for blocking X-rays.

Background art

[0002] Conventionally, X-ray imaging for obtaining so-called X-rays, CT scans for obtaining tomographic images of the body using X-rays, and radiation therapy for treating cancer by emitting X-rays have been performed in medical settings. Lines are used for various purposes. When exposed to such X-rays for a long time, the human body is adversely affected. For this reason, doctors and nurses to be examined move to shielded separate rooms when using X-rays so that they are not exposed to X-rays. In addition, there are cases where X-rays are emitted outside the medical field, and in such cases it is preferable to prevent people from being exposed to X-rays.

[0003] Patent Document 1 discloses an X-ray protective glove for protecting a human body such as an X-ray cover. This X-ray protective glove is a glove filled with cotton-shaped lead or lead alloy material on the back side of the glove.

Patent Document 1: Japanese Utility Model Publication No. 54-81098

Disclosure of the invention

Problems to be solved by the invention

[0004] By the way, while lead has a high effect of blocking X-rays, it tends to cause environmental pollution. Therefore, it is desirable to develop sheets, clothing, and gloves that can block X-rays while paying attention to the environment.

Also, gloves are difficult to use unless the fingertips are deformed flexibly. Therefore, it is preferable to form the entire glove with lead that is not easily deformed.

[0005] In view of the above circumstances, an object of the present invention is to provide an X-ray blocking sheet, an X-ray blocking garment, and an X-ray blocking glove having a good feeling of use, taking the environment into consideration.

Means for solving the problem

[0006] The present invention has a tin layer made of a tin material, and the X-ray blocking effect of the tin layer is small! /, And an auxiliary layer made of a material whose X-ray blocking effect is stronger than the tin layer in the frequency band. It is a wire blocking sheet.

[0007] The X-ray shielding sheet of the present invention includes a tin layer composed of a tin material having an X-ray shielding effect, and the tin layer has a small X-ray shielding effect by the soot layer, and has an X-ray shielding effect in a frequency band. Stronger than V, with an auxiliary layer made of material, so it can effectively block X-rays

[0008] The present invention includes a tin layer and an auxiliary layer, wherein the auxiliary layer is made of a material having a higher X-ray blocking effect in a specific frequency band than the tin layer. X-ray blocking sheet.

[0009] The X-ray shielding sheet of the present invention has a tin layer and an auxiliary layer made of a material having an X-ray shielding effect in a specific frequency band higher than that of the tin layer. In this way, X-rays in the frequency band that cannot be blocked only by the tin layer can also be blocked by the auxiliary layer. As a result, X-rays can be effectively blocked.

[0010] In the X-ray shielding sheet of the present invention, the auxiliary layer is made of a copper material.

[0011] Thereby, X-rays in a specific frequency band that cannot be blocked by the tin layer can be blocked by the auxiliary layer made of a copper material.

[0012] The X-ray shielding sheet of the present invention includes a heat-welding layer that is flexible and has heat-welding properties at least on the front surface or the back surface.

[0013] Thereby, two X-ray shielding sheets 10 having the same shape are overlapped, or one X-ray shielding sheet 10 is folded and the end portions are overlapped to adhere the heat-welding layers having heat-welding properties to each other. Can be made. Therefore, when only the end portions are heat-welded, the periphery of the X-ray blocking sheet 10 is closed, a space is formed inside, and a bag that can block X-rays can be formed. As a result, for example, gloves and clothing that can block X-rays can be formed.

[0014] The X-ray blocking glove of the present invention includes a lead X-ray blocking body that is made of a lead material and blocks X-rays on the above-described glove that can block X-rays, and the X-ray blocking glove. An attachment / detachment means for detachably attaching the lead X-ray blocking body to the back of the hand.

Alternatively, in the X-ray blocking glove of the present invention, the X-ray blocking body is detachable on the back side of the hand of the X-ray blocking glove. This X-ray shield includes lead material. When the present invention is implemented, a lead X-ray blocking body can be attached to the back side of the hand of the X-ray blocking glove. As a result, the X-ray blocking effect can be further enhanced. In addition, since the part where the lead X-ray blocking body is attached is the part on the back side of the hand, it does not affect the delicate fingertip movement. Sarakuko, lead X-ray blocking body can be attached to and detached from the X-ray blocking glove by attaching / detaching means. It is possible to continue using the X-ray blocking body by attaching it to a new X-ray blocking glove.

The X-ray blocker may be made of a material that does not contain lead and contains silver or platinum instead. Since the X-ray blocker can be reused and does not have to be discarded, it can be avoided that it causes environmental pollution even if the X-ray blocker contains lead.

The invention's effect

[0016] By implementing the present invention, it is possible to provide an X-ray blocking sheet, an X-ray blocking clothing, and an X-ray blocking glove that can effectively block X-rays by a tin layer and an auxiliary layer. Become. In other words, the tin layer and the auxiliary layer can block X-rays in a wide frequency band by blocking X-rays in different frequency bands.

Brief Description of Drawings

FIG. 1 is a perspective view of an X-ray blocking glove.

FIG. 2 is an exploded perspective view of an X-ray blocking glove.

FIG. 3 is an enlarged view of the AA cross section in FIG.

FIG. 4 is a graph showing the X-ray blocking function of each material.

FIG. 5 is a graph showing the X-ray blocking function of the material of another example.

BEST MODE FOR CARRYING OUT THE INVENTION

[0018] An embodiment of the present invention will be described below with reference to the drawings.

1 is a perspective view of the X-ray blocking glove 1 embodying the present invention, FIG. 2 is an exploded perspective view of the X-ray blocking glove 1 of FIG. 1, and FIG. 3 is a thumb on the index finger portion of the line blocking glove 1. It is an enlarged view of the AA cross section (see Fig. 2) of the side surface.

[0019] The X-ray blocking glove 1 includes a disposable glove body 5 that is flexible and suitable for medical palpation and the like, and a substantially plate-like protector 2 that is attached to the back of the hand of the glove body 5 and is hard to be deformed. It consists of

[0020] The glove body 5 includes a back side sheet 6 and a palm side sheet 8 composed of two X-ray blocking sheets 10 and 10 formed in the shape of a human hand (wrist strength is also the tip of all fingers). Is constructed by heat welding along the surrounding welding line 7. The welding line 7 will be described later.

As shown in FIG. 2, the back side sheet 6 of the hand is provided with male side fasteners 9 and 9 on the surface of the back of the hand.

The protector 2 is composed of a protector body 3 that is slightly curved with a lead plate having a constant thickness (for example, 5 mm or 10 mm), and female side fasteners 4 and 4 provided on the back surface of the protector body 3. . The protector 2 may be composed of a member including another material such as silver instead of the lead plate. The female side fastener 4 is disposed so as to face the male side fastener 9 of the back side sheet 6 of the hand, and the male side fastener 9 and the female side fastener 4 are detachable. That is, the protector 2 can be attached to and detached from the glove body 5 by the male side fastener 9 and the female side fastener 4.

[0022] The attachment / detachment means for allowing attachment / detachment of the protector 2 and the glove body 5 is not limited to the female side fastener 4 and the male side fastener 9, and is configured to be detachable such as an adhesive sheet or a rubber band. Appropriate means for attachment can be used.

[0023] As shown in FIG. 3, the back-side sheet 6 of the hand and the X-ray blocking sheet 10 constituting the palm-side sheet 8 were formed of a back surface layer 11 formed of a vinyl sheet and a copper material as an auxiliary layer. It comprises a copper layer 12, a base material layer 13 formed of a vinyl sheet, a tin layer 14 formed of a tin material, and a surface layer 15 formed of a vinyl sheet.

[0024] The back surface layer 11, the base material layer 13, and the front surface layer 15 are formed of a sheet having a thickness of about 30 m to 70 m (preferably 50 m) from the vinyl material. The back surface layer 11, the base material layer 13, and the surface layer 15 can be formed of a flexible material such as nylon, polyester, or PET in addition to the vinyl material. However, at least one of the front surface layer 15 and the back surface layer 11 is made of a material that can be easily bonded, such as a material to be thermally welded.

The copper layer 12 is a layer obtained by polymerizing copper with a thickness of about 30 / ζ πι to 70 / ζ πι (preferably 50 / zm) with respect to the base material layer 13. The copper layer 12 can be formed by an appropriate method. For example, the copper layer 12 is formed by adhering a copper sheet to the base material layer 13, or vacuum deposition or It can also be formed as a film on the surface of the base material layer 13 by a film forming means such as sputtering. When forming a film by vacuum evaporation or sputtering, it is preferable to set the film thickness to about 50 μm.

[0026] The tin layer 14 is a layer obtained by polymerizing tin with a thickness of about 30 m to 70 m (preferably 50 m) with respect to the base material layer 13. The tin layer 14 can be formed by an appropriate method. For example, the tin layer 14 is formed by adhering a tin sheet to the base layer 13 or by a film forming means such as vacuum evaporation or sputtering (on the opposite side of the copper layer 12). It can also be formed as a coating on the side surface).

The above-described welding line 7 is a portion where the surface layer 15 of the back-side sheet 6 and the surface layer 15 of the palm-side sheet 8 are thermally welded. Here, the glove body 5 is manufactured in such a manner that the back side sheet 6 of the hand and the flat side sheet 8 of the hand are overlapped with the surface layer 15 facing each other, and the back side sheet 6 of the hand and the palm side sheet 8 of the hand are overlapped. This is done by welding the edge that is the end of the plate to a certain width (eg lmm).

That is, the glove body 5 has a width (contour) of several millimeters from the edge of the surface layer 15 of the back sheet 6 of the hand and a portion (contour) of several millimeters from the edge of the surface layer 15 of the palm side sheet 8. ) Facing each other (but not the wrist), and welding the close contact area.

[0028] At this time, by performing heat welding while leaving the wrist portion, it is possible to form a completely welded glove shape other than the wrist portion through which the hand passes. When the welded glove body 5 is turned upside down, the surface layer 15 is located on the inner side (ie, the side on which the X-ray hits) and becomes the glove body 5 shown in FIG.

[0029] With the above configuration, the X-ray blocking glove 1 is provided that can effectively block X-rays while ensuring the flexibility necessary for delicate operations by powering various fingers such as palpation. be able to.

Fig. 4 is a graph showing the relationship between the mass absorption coefficient of each element and the wavelength of X-rays. As shown in the graph of Fig. 4, tin (element symbol: Sn) is less effective than lead (element symbol: Pb) for X-rays with a wavelength of about 0.05 nm to 0.1 nm, but about 0 .05nm ~ 0.1 3nm X-rays with high X-ray blocking effect, copper (element symbol: Cu) By providing the layer 12 on the X-ray blocking sheet 10, X-rays in this range of wavelengths can also be effectively blocked.

In other words, since the X-ray shielding sheet 10 includes the copper layer 12 (auxiliary layer), X-rays in a specific frequency band cannot be shielded by the tin layer 14 but are shielded by the copper layer 12 (auxiliary layer). can do.

[0030] Since the glove body 5 employs copper and tin as materials for blocking X-rays, it can be manufactured at lower cost and lighter than using lead. Accordingly, it is possible to provide a glove body 5 that is suitable for disposable use in a medical field where cleanliness is required, and that is light and easy to bend without impeding delicate work. Moreover, it can also contribute to environmental protection by not using lead.

[0031] If each layer has a thickness of about 50 μm and a total thickness of about 250 μm, the effectiveness of the X-ray blocking function by the copper layer 12 and the soot layer 14 is ensured, and the X-ray blocking sheet 10 It is possible to achieve both flexibility as a whole. Of course, it is possible to arbitrarily change the thickness of each layer according to the use in which each layer is set to the same thickness or the total thickness is not required to be about 250 m. For example, in order to improve durability, the thickness of the entire X-ray blocking sheet 10 may exceed 250 m by increasing the thickness of the base material layer 13 or the like.

[0032] Further, by using a vinyl sheet (or nylon, polyester, PE, etc.) for at least the base material layer 13, the X-ray blocking sheet 10 is used as a glove and does not break even if it deforms severely. Durability can be ensured.

[0033] Further, by using a vinyl sheet (such as nylon, polyester, PET, etc.) for the back layer 11 that comes into contact with the human body, the user can feel a good wearing feeling when wearing the X-ray blocking gloves 1. X-ray blocking gloves 1 can be used comfortably.

[0034] Since the protector 2 made of lead can be attached to the back of the hand, an X-ray blocking effect by lead can also be obtained. Since the back of the hand wearing this protector 2 does not require flexibility, it does not affect the delicate manual work with the X-ray blocking glove 1 in place!

[0035] Since the protector 2 is removable, the same protector 2 can be reused any number of times even if the disposable glove body 5 is discarded. Therefore, the environmental impact of using lead can be avoided as much as possible. [0036] Here, whether or not the protector 2 attached to the back of the hand is made of a lead material can be selected as appropriate depending on whether the X-ray shielding effect is given priority or the attention to the environment is given priority. Depending on the mode of use, it is possible to use lead materials to the extent that they do not adversely affect the environment, and the present invention does not deny the use of lead materials that have an excellent X-ray shielding effect. .

[0037] Instead of welding the back side sheet 6 and the palm side sheet 8 of the separate hands with the welding line 7, the glove body 5 can be integrally formed with one X-ray blocking sheet 10. In that case, the shape of the hand is arranged symmetrically and connected, the center of the hand is folded to make the back of the hand and the palm of the hand face each other, and the two are welded along the contour of the hand to form a glove. That's right.

A glove shape that fits a human hand can be easily manufactured by welding the back side sheet 6 and the palm side sheet 8 of the hand with the welding line 7 as in the embodiment described above.

[0038] Further, although the copper layer 12 made of a copper material is adopted as the auxiliary layer, instead of the copper layer 12, a silver (element symbol: Ag) of about 30 m to 70 m (preferably 50 μm) is used. A silver layer or a platinum layer of about 30 μηι to 70 μm (preferably 50 μm) made of platinum (element symbol: Pt) may be used.

Fig. 5 is a graph showing the relationship between the mass series coefficient of each element and the wavelength of X-rays. As shown in the graph in Figure 5, both silver and platinum are 0.05 ηπ! ~ 0.1 l The X-ray blocking effect is better than tin in the frequency range around lnm. Therefore, as in the case of using the copper layer 12, X-rays can be sufficiently blocked, and attention can be paid to environmental protection without using lead.

[0039] In addition, in this embodiment, in addition to the force described by taking gloves as an example, appropriate clothing such as an apron, jacket, jumper, trousers, and skirt may be manufactured using the X-ray blocking sheet 10. Thereby, various X-ray blocking clothing having an X-ray blocking effect can be provided. In addition, since the X-ray shielding sheet 10 does not use lead, even if it is provided as clothing, it can be used safely without harming the human body.

[0040] Further, the back surface layer 11, the copper layer 12, the base material layer 13, the tin layer 14, and the front surface layer 15 all have a force formed to a thickness of 50 m. Each X-ray blocking function of 14 functions effectively, and the X-ray blocking sheet 10 as a whole is flexible enough for clothing such as gloves. Any other thickness may be used as long as it has the thickness. Even in this case, both the X-ray blocking function by the copper layer 12 and the tin layer 14 and the flexibility of the X-ray blocking sheet 10 can be ensured.

[0041] The X-ray blocking layer has a two-layer structure using materials such as tin, copper, platinum, silver, etc., but is not limited to this, and is composed of other multiple layers such as a three-layer structure. May be. Further, the layer for blocking X-rays may be composed of a plurality of layers by using other materials such as barium in addition to the materials described above. Even in this case, X-rays can be effectively blocked by an appropriate combination of materials used.

[0042] In the correspondence between the configuration of the present invention and the above-described embodiment, the X-ray blocking clothing of the present invention corresponds to the X-ray blocking glove 1 of the embodiment. The protector corresponds to the main body 3, the attachment / detachment means corresponds to the female side fastener 4 and the male side fastener 9, the auxiliary layer corresponds to the copper layer 12, and the thermal welding layer corresponds to the surface layer 15. Many embodiments can be obtained without being limited only to the configuration of the above-described embodiment.

Claims

The scope of the claims

[1] An X-ray blocking sheet for blocking X-rays, wherein the tin layer is made of a tin material, and the tin layer has little X-ray blocking effect. An X-ray shielding sheet characterized by having an auxiliary layer made of material.

[2] It has a tin layer and an auxiliary layer, and the auxiliary layer has an X-ray blocking effect in a specific frequency band.

An X-ray shielding sheet comprising a material higher than the tin layer.

[3] The X-ray shielding sheet according to claim 1 or 2, wherein the auxiliary layer is made of a copper material.

[4] The X-ray shielding sheet according to any one of [1] to [3], wherein a heat-welding layer having flexibility and heat-welding property is provided on at least the front surface or the back surface.

[5] An X-ray blocking clothing comprising the X-ray blocking sheet according to any one of claims 1 to 4.

[6] An X-ray blocking glove characterized in that the X-ray blocking sheet according to any one of claims 1 to 4 is formed into a glove shape.

[7] A lead X-ray blocker made of a lead material and blocking X-rays, and a detachable means for detachably attaching the lead X-ray blocker on the back side of the hand of the X-ray blocking gloves The X-ray shielding glove according to claim 6, wherein

[8] The X-ray blocking body is removable on the back side of the hand of the X-ray blocking glove.

X-ray shielding gloves as described in 6.

9. The X-ray blocking glove according to claim 8, wherein the X-ray blocking body contains a lead material.