JP2021023610A - Seal for inspection - Google Patents

Abstract

To provide a seal for inspection which can improve the smoothness of scan using a probe.SOLUTION: A seal 10 for inspection is used for image diagnosis using a microwave, and comprises: a base film 11; and an adhesive layer 12 which is pasted to an inspection target. The base film 11 comprises: a rear surface 11R which is in contact with the adhesive layer 12; and a front surface 11F on which the probe is scanned at the inspection of the inspection target. The base film 11 has a thick wall part. The thickness of the thick wall part is larger than that of a portion other than the thick wall part in the base film 11. The front surface 11F of the base film 11 is a flat surface.SELECTED DRAWING: Figure 1

Description

The present invention relates to an inspection seal used for diagnostic imaging using microwaves.

Mammography using microwaves has been proposed as a method for examining breast cancer (see, for example, Patent Document 1). Mammography using microwaves does not require compression of the breast to be examined, so the subject does not feel pain during the examination. In addition, since X-rays are not used in mammography using microwaves, the subject is not exposed to radiation.

International Publication No. 2017/057524

By the way, in mammography using microwaves, a three-dimensional image is generated by scanning the breast with a probe. Then, based on the generated three-dimensional image, the presence or absence of morbidity for breast cancer is diagnosed. Since the breast to be scanned has a step between the breast body and the nipple, the step may interfere with the scanning of the breast by the probe.

It should be noted that such a problem is not limited to the case where the inspection target is the breast, but the inspection target is another part of the human body, and the inspection target is a step due to a concave portion or a convex portion located on the surface of the inspection target. , It is also common when there is a scratch located on the surface of the inspection target.

It is an object of the present invention to provide an inspection seal that makes it possible to improve the smoothness of scanning using a probe.

The inspection sticker for solving the above-mentioned problems is an inspection sticker used for image diagnosis using microwaves. It includes a base film and an adhesive layer to be attached to an inspection target. The base film includes a back surface in contact with the adhesive layer and a front surface on which the probe is scanned during the inspection of the inspection target. The base film has a thick portion, the thickness of the thick portion is thicker than a portion other than the thick portion in the base film, and the surface of the base film is a flat surface.

According to the above configuration, when the probe scans the surface of the base film, the thick portion is positioned on the target portion that interferes with the scanning using the probe, and the target portion is covered with the thick portion. Will be possible. Therefore, a thick portion thicker than the surroundings protects the target portion, for example, when the target portion is scratched. Further, the thick portion thicker than the periphery has higher rigidity than the periphery, and for example, when the target portion is a step, the base film is prevented from following the step. As a result, the smoothness of scanning by the probe can be improved.

In the inspection seal, the base film includes a first layer and a second layer laminated on the first layer, and the second layer may include the thick portion. According to this configuration, the first layer and the second layer can be formed of different materials, and the first layer and the second layer can be formed of the same material, so that the base film can be formed. It is possible to increase the degree of freedom in the material for forming.

In the inspection seal, the base film is formed of a polyurethane resin.
The polyurethane resin may contain any one selected from the group composed of an ether-based polyurethane resin, an ester-based polyurethane resin, and a carbonate-based polyurethane resin. According to this configuration, it is possible to obtain a base film having high bonding suitability.

In the inspection seal, the back surface of the base film may be provided with an index for scanning by the probe, and the second layer may be thicker than the index. According to this configuration, since the second layer protrudes toward the inspection target rather than the index, it is possible to prevent the above-mentioned effect of the second layer from being hindered by the index.

In the inspection seal, two points that have a shape along the edge of the base film and face each other at the edge across the central region of the base film in a plan view facing the surface of the base film. A support having a strip-shaped portion connecting the portions may be further provided, and the thick portion may be located inside the support in a plan view facing the surface of the base film.

According to the above configuration, the laminate of the base film and the adhesive layer is supported by the support, so that the portion of the edge of the laminate supported by the support extends according to the shape of the support. It is maintained in a state of being blown away. Therefore, the inspector who attaches the laminated body to the inspection target only pulls the portion of the edge of the laminated body that is not supported by the support outward to make the entire laminated body wrinkle-free. It is possible to maintain. As a result, it is possible to attach the non-wrinkled laminate to the inspection target, so that the laminate attached to the inspection target is prevented from wrinkling.

According to the present invention, it is possible to improve the smoothness of scanning using a probe.

The cross-sectional view which shows the structure in the inspection seal of one Embodiment. The plan view which shows the structure of the inspection seal in the plan view which faces the surface of the inspection seal. Sectional drawing which shows the structure when an inspection seal is used. The schematic diagram for demonstrating the usage of the inspection seal. The plan view which shows the structure in the modification example of an inspection seal. The cross-sectional view which shows the structure in the modification example of an inspection seal. The cross-sectional view which shows the structure in the other modification of the inspection seal. The equipment block diagram which shows typically the structure of the device in the manufacturing method of an inspection seal. The process drawing for demonstrating one process in the manufacturing method of an inspection seal. The process drawing for demonstrating one process in the manufacturing method of an inspection seal. The process drawing for demonstrating one process in the manufacturing method of an inspection seal. The process drawing for demonstrating one process in the manufacturing method of an inspection seal. The process drawing for demonstrating one process in the manufacturing method of an inspection seal.

An embodiment of the inspection seal will be described with reference to FIGS. 1 to 13. In the following, the configuration of the inspection seal, the method of using the inspection seal, the configuration of other inspection seals, the method of manufacturing the inspection seal, and the examples will be described in order. In the present embodiment, the inspection sticker is a sticker used for mammography, which is an example of image diagnosis using microwaves. The examination sticker is attached to the breast to be examined in mammography.

[Construction of inspection seal]
The configuration of the inspection seal will be described with reference to FIGS. 1 and 2.
FIG. 1 shows a cross-sectional structure of the inspection seal along a plane orthogonal to the plane on which the inspection seal spreads. In FIG. 1, for convenience of illustration, the size of the coordinate grid and the size of the second layer with respect to the size of the first layer, which will be described later, are exaggerated.

As shown in FIG. 1, the inspection seal 10 includes a seal body 10A. The seal body 10A includes a base film 11 and an adhesive layer 12 attached to the breast. The base film 11 includes a back surface 11R in contact with the adhesive layer 12 and a front surface 11F on which the probe is scanned during breast examination. The base film 11 includes a thick portion, and the thickness of the thick portion is thicker than the portion other than the thick portion in the base film 11. The surface 11F of the base film 11 is a flat surface.

In the present embodiment, the base film 11 is formed by the first layer 11A and the second layer 11B laminated on the first layer 11A. The second layer 11B is included in the above-mentioned thick portion. The thick portion is composed of a second layer 11B and a part of the first layer 11A that overlaps with the second layer 11B in the first layer 11A when viewed from the thickness direction of the base film 11. Has been done. The base film 11 is not limited to the configuration including the first layer 11A and the second layer 11B, and may be an integrally molded body.

The base film 11 has a coordinate grid 13 on the back surface 11R for guiding the position of the scan in the inspection target. The coordinate grid 13 is an example of an index of scanning by a probe. An examiner, such as a doctor or laboratory technician, can have the probe scanned along the coordinate grid 13. Therefore, it is possible to maintain a constant distance for the inspector to scan the probe. The coordinate grid 13 is formed on the back surface 11R of the base film 11 using, for example, ink. The thickness of the coordinate grid 13 is thinner than the thickness of the second layer 11B.

The adhesive layer 12 includes a front surface 12F and a back surface 12R. In the adhesive layer 12, the surface in contact with the base film 11 is the front surface 12F, and the surface facing the front surface 12F is the back surface 12R. The adhesive layer 12 covers the entire back surface 11R of the base film 11. As a result, the coordinate grid 13 is sandwiched between the base film 11 and the adhesive layer 12. Therefore, since the coordinate grid 13 does not form the outer surface of the inspection sticker 10, the coordinate grid 13 is difficult to peel off from the inspection sticker 10. The adhesive layer 12 has a thickness such that the back surface 12R becomes a substantially flat surface. In the inspection sticker 10, the back surface 12R of the adhesive layer 12 is attached to the subject.

The inspection seal 10 further includes a protective film 14. The protective film 14 is detachably laminated on the back surface 12R of the adhesive layer 12. When viewed from the direction in which the base film 11 and the protective film 14 overlap, the protective film 14 covers the entire base film 11. The adhesive layer 12 is protected from the outside by the protective film 14 until just before it is attached to the subject. Therefore, the adhesive layer 12 is kept clean until it is attached to the subject.

The base film 11 is made of synthetic resin. The base film 11 is made of, for example, a polyurethane resin. The polyurethane resin for forming the base film 11 includes at least one selected from the group composed of an ether-based polyurethane resin, an ester-based polyurethane resin, and a carbonate-based polyurethane resin. This makes it possible to obtain a base film 11 having high bonding suitability. The base film 11 may be formed of a resin other than the polyurethane resin.

The ether-based polyurethane resin is a polyurethane resin produced by using an ether-based polyol containing an ether bond (-O-). The ester-based polyurethane resin is a polyurethane resin produced by using an ester-based polyol containing an ester bond (-COO-). The carbonate-based polyurethane resin is a polyurethane resin produced by using a polyol containing a carbonate bond (-OC (= O) O-). The thickness of the base film 11 may be, for example, 5 μm or more and 15 μm or less.

In the base film 11, the first layer 11A and the second layer 11B may be formed of the same material or may be formed of different materials. The second layer 11B preferably has higher rigidity than the first layer 11A. As a result, when the probe is scanned on the second layer 11B, the force applied to the second layer 11B causes the second layer 11B to have a second rigidity as compared with the case where the rigidity of the second layer 11B is less than or equal to the rigidity of the first layer 11A. The shape of the layer 11B is less likely to change. Therefore, the smoothness of scanning by the probe is further improved.

In the base film 11, it is possible that the first layer 11A is formed of an ether-based polyol resin and the second layer 11B is formed of a carbonate-based polyol resin. As a result, the first layer 11A and the second layer 11B are formed of a highly flexible polyurethane resin, so that the rigidity of the second layer 11B can be increased while realizing the base film 11 that can be easily attached to the inspection target. It can be made higher than the rigidity of the first layer 11A.

The adhesive layer 12 is made of synthetic resin. The adhesive layer 12 may be, for example, a polyurethane resin or the like. As a result, it is possible to increase the flexibility of the seal body 10A, which is a laminate of the base film 11 and the adhesive layer 12, and improve the bonding suitability of the seal body 10A. The thickness of the adhesive layer 12 may be, for example, 5 μm or more and 20 μm or less.

The protective film 14 is made of synthetic resin. The protective film 14 is formed of, for example, a base film and a release layer. The release layer is laminated on the base film. In the protective film 14, the release layer is in contact with the adhesive layer 12. The base film may be, for example, a polyethylene terephthalate film. The release layer may be, for example, a layer made of silicone resin.

FIG. 2 shows the planar structure of the inspection seal 10 as viewed from the direction facing the surface 11F of the base film 11.
As shown in FIG. 2, the second layer 11B is located at a portion including the center 11C of the base film 11 when viewed from the direction facing the surface 11F of the base film 11. The center 11C of the base film 11 is the center of gravity of the base film 11, that is, the center of mass. The second layer 11B has a circular shape when viewed from the direction facing the surface 11F of the base film 11. Due to the circular shape of the second layer 11B, the outer shape of the second layer 11B is caused when the seal body 10A is attached to the inspection target as compared with the case where the second layer 11B has a polygonal shape. Wrinkles are suppressed around the second layer 11B.

In the present embodiment, the position of the second layer 11B is determined in the base film 11 so that the center of the second layer 11B and the center 11C of the base film 11 coincide with each other. If the second layer 11B is located at a portion including the center 11C of the base film 11, the center of the second layer 11B and the center 11C of the base film 11 do not have to coincide with each other. That is, the thick portion of the base film 11 may be arranged with a bias with respect to the center 11C of the base film 11 as long as it has a size including the center 11C of the base film 11.

Further, when viewed from the direction facing the surface of the base film 11, the second layer 11B preferably has a size larger than the target portion covered by the second layer 11B. The second layer 11B may be smaller than the target portion when viewed from the direction facing the surface of the base film 11.

The coordinate grid 13 includes a plurality of grid lines 13A and a plurality of grid lines 13B. When viewed from the direction facing the surface 11F of the base film 11, the plurality of grid lines 13A form a square grid together with the plurality of grid lines 13B. It is preferable that one of the plurality of grid lines 13A and 13B extends along the scanning direction. The scanning direction is the direction in which the inspector scans the inspection target using the probe in mammography.

The base film 11 has such transparency that the coordinate grid 13 can be visually recognized through the base film 11. The base film 11 may be transparent or translucent.

The inspection sticker 10 further includes a sign 15 indicating a predetermined position on the coordinate grid 13. Like the coordinate grid 13, the label 15 is formed on the back surface 11R of the base film 11 by ink. In the present embodiment, the predetermined position is the central portion of the coordinate grid 13. The marker 15 has a circular shape that surrounds the center 11C of the base film 11 and the center of the coordinate grid 13. The shape of the sign 15 is not limited to a circular shape and can be set arbitrarily. Further, the marker 15 may be composed of a plurality of portions separated from each other. Further, the sign 15 may be arranged at a position deviated from the central portion of the coordinate grid 13 as long as it indicates the central portion of the coordinate grid 13.

[How to use the inspection sticker]
A method of using the inspection seal 10 will be described with reference to FIGS. 3 and 4.
As shown in FIG. 3, when using the inspection sticker 10, the user of the inspection sticker 10 first peels off the protective film 14 from the adhesive layer 12. As a result, the back surface 12R of the adhesive layer 12 can be attached to the subject.

As shown in FIG. 4, the adhesive layer 12 is attached to the subject's breast B. At this time, the seal body 10A is attached to the breast B so that the thick portion of the base film 11 including the second layer 11B overlaps the papilla. As a result, when the probe scans the surface 11F of the base film 11, the target portion that hinders the scan using the probe, that is, the thick portion including the second layer 11B, is positioned on the breast B. The papilla can be covered with a thick portion including the second layer 11B. In the base film 11, the thick portion thicker than the periphery has higher rigidity than the periphery, and prevents the base film 11 from following the step formed by the papilla and the breast body. As a result, the smoothness of scanning by the probe can be improved.

In the present embodiment, since the label 15 surrounds the center 11C of the base film 11, the papilla can be covered with the thick portion including the second layer 11B by locating the label 15 on the papilla. It also becomes.

Further, in the present embodiment, since the center of the second layer 11B coincides with the center 11C of the base film 11, by superimposing the second layer 11B on the papilla, the coordinate grid 13 is entirely in the circumferential direction of the papilla. Can be positioned. As a result, the guidance of the coordinate grid 13 facilitates scanning of the entire breast B.

When the seal body 10A is attached to the breast B, the position of the sign 15 is aligned with the position of the nipple while the four sides constituting the edge of the seal body 10A are pulled outward. Next, by gradually attaching the seal body 10A to the breast B from the upper end to the lower end of the seal body 10A, wrinkling of the seal body 10A can be suppressed. In the seal body 10A, the side located above the papilla is the upper end, and the side located below the papilla is the lower end. When the seal body 10A is wrinkled, a force is applied to the seal body 10A to peel off the wrinkled part from the breast B and pull the seal body 10A toward the outside of the edge. In this state, the seal body 10A is attached to the breast B. As a result, it is possible to remove the wrinkles generated on the seal body 10A.

When the seal body 10A is attached to the breast B, a jig capable of pulling the seal body 10A toward the outside of the edge of the seal body 10A may be used.
[Construction of other inspection seals]
The inspection seal 10 described above may include a support described below.

As shown in FIG. 5, the support 16 has a shape along the edge 11E of the base film 11 in a plan view facing the surface 11F of the base film 11. The support 16 includes a strip-shaped portion connecting two points facing each other on the edge 11E with the central region 11M of the base film 11 interposed therebetween. In a plan view facing the surface 11F of the base film 11, the thick portion of the base film 11 is located inside the support 16.

In the present embodiment, the central region 11M of the base film 11 includes the above-mentioned thick portion. Further, the central region 11M of the base film 11 is a portion having an area half of the area of the surface 11F and having an edge similar to the edge 11E of the base film 11, and is an edge of the base film 11. The distance from 11E is equal between any points on the edge of the central region 11M.

In FIG. 5, the support 16 has a polygonal shape that surrounds the entire central region 11M. Specifically, the support 16 is a closed ring and a rectangular frame. The support 16 is located entirely on the edge 11E of the base film 11. In FIG. 5, when a pair of sides facing each other in the vertical direction of the paper surface are defined as the first side 16b1 and the second side 16b2, both sides facing each other in the horizontal direction of the paper surface have the first side 16b1 as the first side. It is defined as a connecting side 16b3 connected to the two sides 16b2. The first side 16b1 is the side including the first point P1 which is one of the above two points, and the second side 16b2 includes the second point P2 which is the other point of the above two points. It is an edge. As described above, the support 16 has a rectangular frame shape including the first side 16b1, the second side 16b2, and the connecting side 16b3. When the first point P1 and the second point P2 are set, the strip-shaped portion includes a part of the first side 16b1, a part of the second side 16b2, and one connecting side 16b3.

By supporting the seal body 10A by the support 16, the portion of the edge of the seal body 10A supported by the support 16 is maintained in an extended state according to the shape of the support 16. .. Therefore, the inspector who attaches the seal body 10A to the breast only pulls the portion of the edge of the seal body 10A that is not supported by the support 16 outward to wrinkle the entire seal body 10A. It is possible to keep it in a non-existent state. As a result, it is possible to attach the non-wrinkled seal body 10A to the breast, so that the seal body 10A attached to the breast is prevented from wrinkling. As described above, according to the inspection seal 10 having the support 16, it is possible to improve the work efficiency in the inspection.

The support 16 includes a fragile portion 16a. The fragile portion 16a is a portion of the support 16 that is more easily broken than a portion other than the fragile portion 16a. The fragile portion 16a is a portion of the support 16 having a lower mechanical strength than a portion other than the fragile portion 16a. Since the support 16 has the fragile portion 16a, it is possible to break the support 16 triggered by the fragile portion 16a. Therefore, it is easy to remove the support 16 from the surface 11F of the base film 11.

The breaking strength of the support 16 at a portion other than the fragile portion 16a is higher than the breaking strength of the base film 11, and the adhesion strength between the support 16 and the surface 11F of the base film 11 is higher than the adhesion strength with the inspection target. high. As a result, when the support 16 is broken by the fragile portion 16a as a trigger, the seal body 10A is broken along the boundary between the support 16 and the base film 11 in a plan view facing the surface 11F of the base film 11. It is possible. Further, when viewed from the thickness direction of the seal body 10A, the portion of the seal body 10A that overlaps with the support 16 can be removed from the breast together with the support 16.

As shown in FIG. 6, in the inspection seal 10, the support 16 is attached to the surface 11F of the base film 11. The support 16 may be attached directly to the surface 11F of the base film 11 or indirectly. In FIG. 6, the inspection seal 10 further includes an adhesive layer 17 for attaching the support 16 to the surface 11F of the base film 11. The support 16 is indirectly attached to the surface 11F of the base film 11 via the adhesive layer 17.

The support 16 may be made of paper or synthetic resin. The support 16 preferably has a higher rigidity than the seal body 10A. On the other hand, the support 16 preferably has flexibility that allows the inspection seal 10 to bend along a curved surface when applied to a curved surface such as a breast. When the support 16 is made of paper, the rigidity and flexibility of the support 16 can be adjusted by the basis weight of the paper. When the support 16 is made of a synthetic resin, the rigidity and flexibility of the support 16 can be adjusted by the type of the synthetic resin and the thickness of the support 16.

As shown in FIG. 7, the inspection seal 10 may include a support 18 in contact with the back surface 11R of the base film 11. When the support 18 is located on the back surface 11R of the base film 11, the thickness of the support 18 is thinner than the thickness of the adhesive layer 12. Further, when the support 18 is located on the back surface 11R of the base film 11, the support 18 can be formed of the same material as the second layer 11B. Thereby, the support 18 and the second layer 11B can be formed by the same process. Therefore, it is possible to reduce the number of steps required for manufacturing the inspection seal 10 as compared with the case where the support 18 and the second layer 11B are formed by separate steps.

[Manufacturing method of inspection seal]
A method for manufacturing the inspection seal 10 will be described with reference to FIGS. 8 to 13. Hereinafter, a method of manufacturing a plurality of inspection seals by using the rotary rotation method will be described, but the present invention is not limited to this, and the inspection seals may be manufactured one by one by using the single-wafer method.

FIG. 8 schematically shows a roll-to-roll device used for manufacturing the inspection seal 10.
As shown in FIG. 8, in the present embodiment, each step in the method of manufacturing the inspection seal 10 is performed by a roll-to-roll device. In each step, the roll-shaped processing target 20 wound around the core C1 is conveyed toward the processing unit 30. The processing unit 30 performs processing for each process on the processing target 20 moving in the transport direction D. The treatment performed by the processing unit 30 is, for example, coating, drying, and heating. The processing target 20 after processing is wound around the core C2.

Each of FIGS. 9 to 13 shows the structure to be processed in one step in the manufacture of the inspection seal 10. Note that FIGS. 9 to 13 show a cross-sectional shape along a plane orthogonal to the plane on which the processing target spreads for convenience of illustration.

As shown in FIG. 9, when manufacturing the inspection seal 10, the carrier film 21 is first prepared. Next, a coating liquid for forming the first layer 11AA is applied to the surface to be coated 21R of the carrier film 21. The first layer 11AA is a layer corresponding to the first layer 11A included in the inspection seal 10. Then, the coating liquid is dried to form the first layer 11AA on the surface to be coated 21R of the carrier film 21. When a coating liquid for forming the first layer 11A is applied to the surface to be coated 21R, it is preferable that the surface to be coated 21R has high wettability with respect to the coating liquid. As a result, it is possible to suppress variations in the thickness of the first layer 11A over the entire surface to be coated 21R. In the first layer 11AA, the surface in contact with the surface to be coated 21R is the surface corresponding to the surface 11F of the base film 11 included in the inspection seal 10.

As shown in FIG. 10, the coordinate grid 13 and the marker 15 are printed on the first layer 11A. The method for printing the coordinate grid 13 and the sign 15 is preferably a method according to the size of the coordinate grid 13 and the sign 15 and the thickness of the coordinate grid 13 and the sign 15. The method of printing the coordinate grid 13 and the sign 15 may be, for example, a direct gravure method using a gravure plate.

As shown in FIG. 11, a coating liquid for forming the second layer 11B is applied to the first layer 11AA. Then, the coating liquid is dried to form the second layer 11B on the first layer 11AA. The second layer 11B is arranged in the portion of the first layer 11AA where the label 15 is formed.

As shown in FIG. 12, the adhesive layer 12A and the protective film 14A are formed so as to cover the first layer 11AA, the second layer 11B, and the coordinate grid 13. The adhesive layer 12A corresponds to the adhesive layer 12 included in the inspection seal 10, and the protective film 14A corresponds to the protective film 14 included in the inspection seal 10.

The coating liquid used for forming the adhesive layer 12A may contain a curing agent or the like together with the adhesive. The adhesive layer 12A may be formed on the first layer 11AA or may be formed on the protective film 14. When the adhesive layer 12A is formed on the first layer 11AA, the protective film 14A is attached to the adhesive layer 12A. On the other hand, when the adhesive layer 12A is formed on the protective film 14A, the laminated body of the adhesive layer 12A and the protective film 14A is attached to the first layer 11AA by the adhesive layer 12A. The attachment of the protective film 14 to the adhesive layer 12A and the attachment of the adhesive layer 12A to the first layer 11AA are performed, for example, by dry lamination.

As shown in FIG. 13, the carrier film 21 is peeled from the first layer 11AA. Since the carrier film 21 is peeled off from the first layer 11AA in this way, a material that can be peeled off from each other is selected as the material that forms the first layer 11A and the material that forms the carrier film 21. For example, when the material forming the first layer 11AA is a polyurethane resin, the material forming the carrier film 21 is preferably polypropylene resin or polyethylene resin. Next, the laminate containing the first layer 11AA, the adhesive layer 12A, and the protective film 14A is cut. As a result, a plurality of inspection seals 10 can be obtained.

When the base film 11 has a support 16 located on the surface 11F, the support 16 is attached to the surface 11F of the base film included in the inspection seal 10. As described above, the support 16 may be directly attached to the surface 11F of the base film 11, or may be indirectly attached to the surface 11F of the base film 11 via the adhesive layer 17. Further, when the base film 11 includes the support 18 located on the back surface 11R, the support 18 can be formed when the second layer 11B is formed. The material forming the support 18 may be the same as the material forming the second layer 11B, or may be different from each other. When the material forming the support 18 is the same as the material forming the second layer 11B, the material forming the support 18 and the material forming the second layer 11B are different from each other, as compared with the case where the material forming the support 18 is different from each other. The process of forming the body 18 can be simplified.

[Example]
Examples and comparative examples of inspection seals will be described with reference to Table 1.
[Example 1]
A biaxially stretched polypropylene (OPP) film (manufactured by Futamura Chemical Co., Ltd., FOR-MP) having a thickness of 40 μm was prepared as a carrier film. Then, an ether-based polyol resin (manufactured by Mitsui Chemicals, Inc., W-6021) was applied to the surface to be coated of the carrier film by using a gravure reverse method to form a first layer having a thickness of 15 μm. .. The surface of the first layer in contact with the carrier film is the surface of the first layer, and the surface opposite to the front surface is the back surface of the first layer.

Next, the coordinate grid and the sign were printed on the back surface of the first layer using the direct gravure method. As a result, a coordinate grid and a marker having a thickness of 1 μm were formed. Urethane-based inks (Dainichiseika Co., Ltd., Ramic SR 950B Zhu F, and Ramic SR 739B Ai F-3) were used as the inks forming the coordinate grid and the marker. Then, in the back surface of the first layer on which the coordinate grid and the label are printed, a carbonate-based polyol resin (Mitsui Chemicals, Inc., W-6110) is applied to the portion including the center to have a thickness of 15 μm. The second layer was formed.

Then, a coating liquid was prepared by adding 1 part of a curing agent (Toyochem Co., Ltd., T-501B) to 100 parts of a urethane adhesive (Toyochem Co., Ltd., Siavine SP205). Further, a PET film having a thickness of 75 μm and having a silicon coating on one side (manufactured by Toray Film Processing Co., Ltd., Therapy) was prepared as a protective film. Then, a coating liquid of a urethane adhesive and a curing agent was applied to the protective film by gravure coating, and the coating liquid was dried. As a result, an adhesive layer having a thickness of 15 μm was obtained. Then, a laminate was obtained by laminating the base film and the adhesive layer. The inspection seal of Example 1 was obtained by aging the laminate and peeling the carrier film from the first layer.

[Example 2]
In Example 1, a support was prepared using a paper material (manufactured by Takeo Co., Ltd., Invar Coat M-FS) having a basis weight of 260 g / m ^{2, and the support was placed on the surface of the first layer of the inspection seal.} An inspection sticker of Example 2 was obtained by the same method as in Example 1 except for sticking.

[Example 3]
An inspection seal of Example 3 was obtained by the same method as in Example 1 except that the support was formed on the back surface of the first layer together with the second layer in Example 1. At this time, a carbonate-based polyol resin (Mitsui Chemicals, Inc., W-6110) was applied to the region along the edge of the first layer. As a result, a support having a thickness of 15 μm was formed.

[Comparative Example 1]
An inspection seal of Comparative Example 1 was obtained by the same method as in Example 1 except that the second layer was not formed in Example 1.

[Evaluation methods]
For each of the test seals of Examples 1 to 3 and the test seal of Comparative Example 1, after peeling the protective film from the adhesive layer, on the breast of the breast cancer palpation training model (manufactured by Tanac Co., Ltd.). I pasted it. At this time, the following two items were evaluated.
(Item 1) Wrinkles and air bubbles can be suppressed when attached to the breast (Item 2) It is possible to suppress steps on the surface of the inspection seal.

In item 1, whether or not the seal body is wrinkled when the seal body is attached to the breast, and whether or not air is generated due to air entering between the seal body and the breast are described below. It was evaluated on a two-point scale.
○ No wrinkles or bubbles, or only small wrinkles or bubbles that do not interfere with scanning with the probe × Large wrinkles or bubbles that interfere with scanning with the probe

In item 2, when the seal body was attached to the breast, whether or not there was a step on the surface of the seal body was evaluated in the following two stages.
○ There is no step on the surface of the seal body, or there is only a small step on the surface of the seal body that does not interfere with scanning with the probe. × A step large enough to interfere with scanning with the probe seals. Occurs on the surface of the body

[Evaluation results]
The results of evaluating the above-mentioned items 1 and 2 for the inspection seals of Examples 1 to 3 and Comparative Example 1 are as shown in Table 1 below.

As shown in Table 1, it was confirmed that the evaluation of item 1 was "○" and the evaluation of item 2 was "○" in all of the inspection seals of Examples 1 to 3. On the other hand, in the inspection seal of Comparative Example 1, it was confirmed that the evaluation of item 1 was "x" and the evaluation of item 2 was "x".

As described above, according to the inspection seals of Examples 1 to 3, the base film has the second layer, so that the seal body has a step following the step between the papilla and the breast body. It was also confirmed that the formation of bubbles due to such a step was suppressed. That is, according to the examination seals of Examples 1 to 3, it was confirmed that it is possible to improve the smoothness of the scan using the probe at the time of breast examination.

As described above, according to one embodiment of the inspection seal, the effects described below can be obtained.
(1) When the probe scans the surface 11F of the base film 11, the thick portion including the second layer 11B is positioned on the papilla that hinders the scan using the probe in the breast B, and the papilla is placed. , It becomes possible to cover by a thick portion including the second layer 11B. The thick portion including the second layer 11B, which is thicker than the periphery, has a higher rigidity than the periphery, and prevents the base film 11 from following the step. As a result, the smoothness of scanning by the probe can be improved.

(2) It is possible to increase the degree of freedom in the material for forming the base film 11.
(3) Since the base film 11 is formed of a polyurethane resin having high flexibility, it is possible to obtain a base film 11 having high bonding suitability.

(4) Since the second layer 11B protrudes toward the breast rather than the index, it is possible to prevent the above-mentioned effect of the second layer 11B from being hindered by the index.
(5) The inspector who attaches the seal body 10A to the breast B only pulls outward the portion of the edge of the seal body 10A that is not supported by the supports 16 and 18, and the seal body 10A It is possible to keep the whole wrinkle-free. As a result, the seal body 10A that is not wrinkled can be attached to the breast B, so that the seal body 10A attached to the breast B is prevented from wrinkling.

The above-described embodiment can be modified and implemented as follows.
[Seal body]
The seal body 10A may have a multilayer structure composed of four or more layers. Even in this case, if the thick portion of the base film 11 is thicker than the periphery of the thick portion and the surface 11F is a flat surface, the effect according to (1) described above can be obtained. ..

-The seal body 10A may have a shape other than a square shape. The seal body 10A may have a geometric shape such as an elliptical shape, a circular shape, and a triangular shape, or an indefinite shape having a shape other than the geometric shape.

The seal body 10A does not have to have an index as illustrated in the coordinate grid 13. For example, the sticker body 10A may display an index by copying various images projected by the projection device by the sticker body 10A. Also in this case, it is possible to obtain the effects according to the above-mentioned (1) to (3) and (5).

[Base film]
The thick portion of the base film 11 does not have to be located at the center 11C of the base film 11. That is, the thick portion of the base film 11 can be provided at an arbitrary position on the base film 11 according to the inspection target. Even in such a case, the effect according to (1) described above can be obtained by locating the thick portion at a predetermined place in the inspection target such as a scratch or a step.

-In the base film 11, the thick portion may have an arbitrary shape. The thick portion may have, for example, a circular shape, a rectangular shape, or a ring-opened or ring-closed frame shape. Further, the base film 11 may include a plurality of thick portions.

-Each of the first layer 11A and the second layer 11B may be formed from one layer or may be formed from a multi-layer structure composed of two or more layers. Even in this case, if the thick portion of the base film 11 is thicker than the periphery of the thick portion and the surface 11F is a flat surface, the effect according to (1) described above can be obtained. .. When the base film has a multilayer structure, the materials forming each layer of the base film may be the same or different from each other.

The rigidity of the second layer 11B may be lower than the rigidity of the first layer 11A. Even in this case, since the thick portion of the base film 11 is formed from the second layer 11B and a part of the first layer 11A, the rigidity in the thick portion is the rigidity around the thick portion. Will be higher than.

The base film 11 may be formed of an elastic film, an elastomer, or the like. Further, the base film 11 may be formed of a material other than the polyurethane resin such as polyethylene terephthalate.

[Adhesive layer]
-The pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer 12 may be a pressure-sensitive adhesive other than the urethane-based pressure-sensitive adhesive. For example, the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer 12 may be an acrylic pressure-sensitive adhesive.
The adhesive layer 12 may have a shape that follows the shape of the back surface 11R of the base film 11.

[Coordinate grid]
-The coordinate grid 13 may have a shape other than the square grid. For example, the coordinate grid 13 may have a shape corresponding to polar coordinates formed from a plurality of concentric circles having different diameters.

-The sticker body 10A is not limited to the coordinate grid 13, and may have a scan index having a pattern extending along one direction, or a numerical or character index. The scan index may be, for example, one that can suggest the position to be scanned or the direction of scan by the probe.

[Protective film]
-The protective film 14 may be omitted in the inspection seal 10. Even in this case, if the thick portion of the base film 11 is thicker than the periphery of the thick portion and the surface 11F is a flat surface, the effect according to (1) to (6) described above can be obtained. You can get it.

[Sign]
-Sign 15 may be omitted. Even in this case, if the seal body 10A has the coordinate grid 13, the breast can be scanned by adjusting the position of the coordinate grid 13 with respect to the breast B so that the entire nipple is scanned in the circumferential direction. It is possible to attach the seal body 10A to B.

[Support]
The support 16 may have, for example, an open rectangular frame shape instead of a closed rectangular frame shape. Further, the support 16 does not have to have one of the two connecting sides 16b3 connecting the first side 16b1 and the second side 16b2. Even in this case, it is possible to obtain the effect according to (5) described above.

The support 16 may have a circular shape that surrounds the entire base film 11 in the central region 11M. For example, the seal body 10A may have a circular shape, and the support 16 may have an annular shape along the edge of the seal body 10A. When the support 16 has an annular shape, the support 16 may have a closed ring shape, or an open ring shape, that is, an arc shape surrounding the thick portion with a part of the edge 11E of the base film 11 open. You may have. Even in this case, the effect according to (5) described above can be obtained.

The support 16 does not have to have the fragile portion 16a. Even in this case, the effect according to (5) described above can be obtained. Further, the breast B may be inspected with the support 16 attached to the seal body 10A, or the breast B may be inspected after the support 16 is removed from the seal body 10A.

[Inspection target]
-The examination target is not limited to the breast, but may be other parts of the human body. That is, the inspection sticker 10 may be used not only for mammography but also for other diagnostic imaging. In this case, the inspection target has a step due to a recess or a protrusion located on the surface, or a target portion that is a scratch located on the surface. Then, in the base film 11, the thick portion thicker than the surroundings protects the target portion when the target portion is scratched. Further, the thick portion has a higher rigidity than the surroundings, and when the target portion is a step, the base film 11 is prevented from following the step. These make it possible to improve the smoothness of scanning by the probe.

10 ... Inspection seal, 10A ... Seal body, 11 ... Base film, 11A ... First layer, 11B ... Second layer, 11C ... Center, 11E ... Edge, 11F ... Front surface, 11M ... Central area, 11R ... Back surface, 12 ... Adhesive layer, 12F ... Front surface, 12R ... Back surface, 13 ... Coordinate grid, 13A ... Grid line, 13B ... Grid line, 14 ... Protective film, 15 ... Marker, 16, 18 ... Support, 16a ... Vulnerable part, 16b1 ... 1st side, 16b2 ... 2nd side, 16b3 ... Connecting side, 17 ... Adhesive layer, 20 ... Processing target, 21 ... Carrier film, 21R ... Applied surface, 30 ... Processing part, B ... Breast, C1, C2 ... Core , D ... Transport direction, P1 ... 1st point, P2 ... 2nd point.

Claims (5)

An inspection sticker used for diagnostic imaging using microwaves.
With the base film
With an adhesive layer that can be attached to the inspection target,
The base film includes a back surface in contact with the adhesive layer and a front surface on which the probe is scanned during the inspection of the inspection target.
An inspection seal in which the base film has a thick portion, the thickness of the thick portion is thicker than a portion of the base film other than the thick portion, and the surface of the base film is a flat surface. The base film includes a first layer and a second layer laminated on the first layer.
The inspection seal according to claim 1, wherein the second layer is included in the thick portion. The base film is made of polyurethane resin and
The inspection seal according to claim 1 or 2, wherein the polyurethane resin contains any one selected from the group composed of an ether-based polyurethane resin, an ester-based polyurethane resin, and a carbonate-based polyurethane resin. An index for scanning with the probe is provided on the back surface of the base film.
The inspection seal according to claim 2, wherein the second layer is thicker than the index. In a plan view facing the surface of the base film, a strip-shaped portion having a shape along the edge of the base film and connecting two points facing each other at the edge across the central region of the base film is formed. With more supports to
The inspection seal according to any one of claims 1 to 4, wherein the thick portion is located inside the support in a plan view facing the surface of the base film.