WO2000062728A1

WO2000062728A1 - Emergency adhesive plaster

Info

Publication number: WO2000062728A1
Application number: PCT/JP2000/002580
Authority: WO
Inventors: Yohko Tomizawa; Eiichiro Manabe; Chikako Kiuchi
Original assignee: Taisho Pharmaceutical Co., Ltd.
Priority date: 1999-04-20
Filing date: 2000-04-20
Publication date: 2000-10-26
Also published as: AU3840300A; JP2000300600A

Abstract

A novel emergency adhesive plaster having a high cushioning feature, protecting an affected part from an impact caused when in contact with the outside, being thin and easy to use, and having a high hemostatic action. A typical example of such an adhesive plaster comprises a base material sheet (1), a planar pad (3) in contact with an affected part and an elastically deformable cushioning material (5).

Description

Description Emergency bandage Technical field

The present invention relates to an emergency bandage, and more particularly to an emergency bandage that reduces external impact and has a high hemostatic effect. Background art

In general, first-aid adhesive plasters have a structure in which an adhesive layer is provided on one side of a base sheet made of a soft film, and a gauze is adhered to the center of the adhesive layer. Used to wear. However, since the thickness of the base sheet is relatively thin in a normal first-aid bandage, severe pain may occur when an object or the like comes into contact with a portion corresponding to an affected part of the first-aid bandage for some reason.

Thus, Japanese Patent Application Laid-Open No. Hei 10-118174 discloses that linear low-density polyethylene is composed of 60 to 80% by weight and ethylene-vinyl acetate copolymer 40 to 20% by weight. First-aid adhesive plasters based on ionizing radiation-crosslinked polyethylene foam sheets with a magnification of 12 to 17 times and a thickness of 0.7 to 1.3 mm have been proposed. Japanese Patent Application Publication No. 1108520 proposes an emergency bandage having an absorbent pad in which a soft foam is wrapped with gauze or the like.

However, the first-aid bandage described in Japanese Patent Application Laid-Open No. H10-118184 only provides a buffer to a base sheet having a smaller thickness than a pad or the like. There is a limit to the improvement of the buffer function. In addition, since the amount of the linear low-density polyethylene is adjusted so as not to compress the affected part, the hemostatic effect is poor. Further, the manufacturing process of the base sheet portion becomes complicated, and there is a problem in manufacturing efficiency and cost.

On the other hand, the first-aid bandage described in Japanese Utility Model Application Laid-Open No. 4-110850 can provide cushioning to the pad portion, but the soft foam is surrounded almost entirely by gauze or the like. Therefore, the degree of freedom of deformation is small. Therefore, actually shock It is difficult for the flexible foam to exert a high cushioning effect when a force is applied. Further, since the flexible foam is adhered to the base sheet via the gauze or the like, the flexible foam may fall off from the gauze or the like during use. Further, the thickness of the gauze or the like increases the thickness of the entire absorbent pad, which makes it difficult to use. Incidentally, Japanese Utility Model Application Laid-Open No. 4-110850 does not disclose any necessity of early hemostasis at an affected part (for example, a wound). Disclosure of the invention

An object of the present invention is to solve the above-mentioned problems in the related art. That is, a first object of the present invention is to provide an emergency bandage which has a higher buffering property than the conventional one and does not give an impact of contact with the outside to an affected part. Further, a second object of the present invention is to provide an emergency bandage which is thin despite having high cushioning properties and is easy to use. A third object of the present invention is to provide a new emergency bandage having a higher hemostatic action than the conventional one. The present invention is an emergency bandage comprising a base sheet, a flat pad that comes into contact with an affected area (including a wound), and an elastically deformable cushion material. This emergency mixing plaster may have a layer structure in which the pad is adhered to one surface of the base sheet, and the cushion material is adhered to the other surface of the base sheet. The cushioning material may have a layered structure located between the pad and the base sheet. Further, an emergency bandage of the present invention is an emergency bandage comprising a plurality of base sheets, a flat pad that comes into contact with an affected part (including a wound), and an elastically deformable cushion material, wherein the cushion material is used. An emergency bandage may be located between the respective base sheets. The cushion material exhibits a cushioning property by absorbing at least a part of the external force acting on the pad.

The cushioning material used in the present invention is preferably composed of a bag-like material in which gas is sealed by a deformable thin film, or a hollow spherical body having a diameter of 0.1 to 5 mm. If it is used in a state where it can be used, a foam may be used. The maximum thickness of the cushioning material is preferably 0.1 to 5 mm. The base sheet in the present invention is preferably a foam sheet. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing an example of an embodiment of an emergency bandage of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the emergency bandage of the present invention.

FIG. 3 is a sectional view showing still another embodiment of the emergency bandage of the present invention.

FIG. 4 is an enlarged top view and a side view showing an example of a cushion material usable in the present invention. Detailed description of the invention

FIG. 1 is a diagram showing an example of an embodiment of an emergency bandage of the present invention, wherein FIG. 1 (a) is a top view and FIG. 1 (b) is a cross-sectional view. In the embodiment shown in FIG. 1, a pressure-sensitive adhesive layer 2 is laminated on one surface 1a of a base sheet 1, and a substantially central portion of the pressure-sensitive adhesive surface 2a of the pressure-sensitive adhesive layer 2 includes an affected part (a wound). ) Is affixed. The adhesive surface 2a is protected by a release paper 4, and the release paper 4 is peeled off from the adhesive surface 2a during use.

The material of the base sheet 1 is not particularly limited, and may be, for example, a polyvinyl chloride resin, a polyurethane resin, a polyethylene resin, a polypropylene resin, an EVA resin, a polyacryl resin, or a mixture thereof. A woven or non-woven fabric made of a material such as a synthetic resin film or sheet, polyurethane, styrene-isoprene-styrene copolymer, styrene-ethylenebutylene-styrene copolymer, or the like can be suitably used. The base sheet 1 may be a single-layer sheet, or may be a laminated sheet made of sheets, films, woven fabrics or non-woven fabrics of the same or different materials. The thickness of the base sheet 1 is preferably in the range of 0.1 to 2 mm, and more preferably in the range of 0.3 to 1.5 mm. If the thickness is less than 0.1 mm, the strength of the base sheet 1 is reduced, and its production is difficult. On the other hand, if it exceeds 2 mm, the flexibility of the base material sheet 1 is reduced, giving an uncomfortable feeling during use.

A foaming agent, an ultraviolet absorber, a stabilizer, a filler, a lubricant, an antistatic agent, a coloring agent, and the like may be added to the material constituting the base sheet 1 as necessary. In addition, flexible It is preferable that a foaming agent is added in order to improve the properties and the buffering property. In this case, the foamable base sheet 1 is foamed and crosslinked by extrusion foam molding or the like. Examples of the foaming agent include azodicarbonamide, hydrazodicarbonamide, azodicarboxylic acid amide, dinitrosopene ethylenetetramine and the like. Examples of the filler or coloring agent include titanium oxide, zinc white, lead white, lithium, graphite, cobalt yellow, molybdenum red, red bengalah, lead tin, ultramarine, cobalt green, chrome green, and lithium green. Bon Black, calcium carbonate, barium sulfate, aluminum hydroxide, lakered c, benzidine yellow and the like.

When the base sheet 1 is made of a synthetic resin film or sheet, a plurality of fine holes may be formed in order to improve air permeability. In addition, for the purpose of eliminating discomfort when used by wrapping around a finger, the base sheet 1 may be embossed to improve the slipperiness of the surface.

Examples of the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 2 include an acrylic pressure-sensitive adhesive, a rubber-based pressure-sensitive adhesive, a silicone-based pressure-sensitive adhesive, a polyurethane-based pressure-sensitive adhesive, and a water-soluble polymer-based pressure-sensitive adhesive. Silicone-acrylic adhesives are preferred from the viewpoints of water resistance, waterproofness, and low irritation to the skin. Examples of the acrylic pressure-sensitive adhesive include homo- or copolymers of acrylate monomers such as butyl acrylate, isononyl acrylate, 2-ethylhexyl acrylate, and 2-hydroxyethyl acrylate. Or copolymers of these monomers with other monomers such as vinyl acetate and acrylic acid. Examples of the rubber-based pressure-sensitive adhesive include a rubber base material such as synthetic polyisoprene rubber, styrene-isoprene-styrene block copolymer, and natural rubber, which is mixed with a tackifier resin, a softener, and the like. The form of the pressure-sensitive adhesive is not particularly limited, and any type of pressure-sensitive adhesive such as a solvent-based, emulsion-based, hot-melt-based, or dry-blend-based adhesive can be used. The thickness of the pressure-sensitive adhesive layer 2 is preferably smaller than the thickness of the base sheet 1, specifically, appropriately adjusted in the range of 0.0 l to 2 mm according to the thickness of the base sheet 1. Is done.

In the present invention, the pad 3 has a substantially flat sheet shape and a liquid absorbing property. Specifically, gauze, cotton cloth, non-woven fabric, composite product of absorbent cotton and non-woven fabric, absorbent cotton and net, composite product of non-woven fabric and net, etc. are appropriately used. In addition, it is preferable that the pad 3 is sterilized by disinfecting the pad 3 in advance, or that the pad 3 is subjected to a sterilization treatment after being combined with the base sheet 1 or the like to form an emergency gadget. In the present invention, since a flat pad is used as the pad 3, it is possible to reduce the thickness of the emergency bandage.

Examples of the release paper 4 include paper base materials such as high-quality paper, medium-quality paper, and glassine paper that have been subjected to a silicone release treatment, polyester films such as polyethylene terephthalate, polyethylene films, and polypropylene films. The material is not particularly limited as long as it can protect the pressure-sensitive adhesive layer 2 and the pad 3 from the outside and can be easily peeled off from the pressure-sensitive adhesive surface 2a.

In the embodiment shown in FIG. 1, a cushion having substantially the same size as the pad 3 is provided substantially at the center of the surface 1 b of the base sheet 1 opposite to the surface 1 a facing the adhesive layer 2. One bonding material 5 is attached via an adhesive layer 6. Since the cushion material 5 in the present invention can be elastically deformed, the entire cushion material 5 or at least a portion thereof is deformed when an impact from the outside is applied. Therefore, an externally applied impact force is absorbed or reduced by the cushion material 5, and is not directly transmitted to the affected part. In addition, the cushioning material 5 has a high cushioning function because its deformation is not hindered by the pad 3. Since the cushion material 5 is directly fixed to the base sheet 1, it does not fall off from the emergency plaster during use.

In the present invention, the structure and material of the cushioning material 5 are not particularly limited as long as the cushioning material 5 can be elastically deformed, but in the embodiment of FIG. 1, the cushioning material 5 seals gas inside by a deformable thin film. It is a bag having a substantially rectangular cross section. The first-aid bandage using such a cushioning material has a high hemostatic effect because the pressure from the gas sealed in the cushioning material 5 can be applied to the pad 3. In the present embodiment, the “deformable thin film” constituting the cushion material 5 means a deformable film or sheet, and the material is particularly limited as long as it has airtightness. Although not intended, preferred are polyethylene, polypropylene, polystyrene, polyvinyl chloride, acrylic resin, polyamide, polyester Various synthetic resins such as plastics, polyvinylidene chloride, polyvinyl acetate, thermoplastic elastomer, synthetic rubber, natural materials such as natural rubber, and metal foil are used. The thin film may be a single layer, or may be composed of a plurality of layers having different properties. In addition, from the viewpoint of the cushioning property of the cushion material 5, the thin film itself is preferably elastically deformable.

The thickness of the thin film is not particularly limited as long as the cushioning material 5 can accommodate a sufficient amount of gas to obtain a cushioning effect, but from the viewpoint of the strength of the cushioning material 5 and the feeling of use as an entire first aid bandage. Thus, it is preferable that the thickness be in the range of 0.001 to 2 mm. If the thickness of the thin film is less than 0.001 mm or less, the strength of the cushioning material 5 becomes insufficient. On the other hand, if it exceeds 2 mm, the degree of deformation of the cushioning material 5 decreases and the buffering effect is reduced. In addition, the edge of the thin film is bonded to the cushion material 5 by heat sealing or an adhesive, for example.

As the gas to be sealed inside the cushion material 5, air or other gas can be used, but the type is not particularly limited. In order to provide a high hemostatic effect, the gas is preferably sealed in the cushioning material 5 at a pressure higher than the external pressure.However, the gas is absorbed to a level at which impact from the outside does not cause pain to the affected area, Further, as long as a desired hemostatic action can be obtained, the pressure of filling the gas may be equal to or lower than the external pressure. In addition, since the pressure of the gas in the cushion material 5 may decrease due to long-term use, it is preferable that a small amount of a liquid that can be vaporized at room temperature is sealed in the cushion material 5.

In the embodiment shown in FIG. 1, the size of the cushioning material 5 is substantially the same as that of the pad 3 and is arranged at a position corresponding to the pad 3. The size and location of the cushioning material 5 are not particularly limited, and the cushioning material 5 may be smaller than the pad 3 as long as high cushioning property and hemostatic action can be imparted as a whole of the bandage. Also, the disposition location need not be a position facing the pad 3. However, if the volume of the cushioning material 5 becomes excessively large, it becomes difficult to package the entire emergency first-hand plaster, and it becomes difficult to use, so that the maximum thickness of the cushioning material 5 in the cross-sectional direction is 0. l to 5 mm, preferably 0.1 to 3 mm, more preferably 0.1 to 2 mm. The maximum If the thickness is less than 0.1 mm, it is difficult to obtain a sufficient cushioning effect by the cushioning material 5, while if it exceeds 5 mm, the overall thickness of the first-aid bandage increases, giving an uncomfortable feeling during use. Packaging of the bandage itself is also difficult.

The adhesive layer 6 can be made of the same material as the adhesive constituting the adhesive layer 2, but in addition, a curable adhesive such as an epoxy resin can also be used. . Specifically, the thickness of the adhesive layer 6 is appropriately adjusted in the range of 0.001 to lmm.

The emergency bandage shown in FIG. 1 is manufactured, for example, as follows. That is, first, an adhesive is applied to one surface 1 a of the base sheet 1 to form the adhesive layer 2. Next, a pad 3 is placed on a substantially central portion of the adhesive surface 2 a of the adhesive layer 2, and the entire adhesive surface 2 a is covered with a release paper 4. On the other hand, an adhesive is applied to the approximate center of the other surface 1b of the base sheet 1a to form an adhesive layer 6, on which a bag-like cushioning material 5 previously filled with gas is placed. Fix it. Note that an adhesive may be applied to a part of the cushion material 5 in advance to form the adhesive layer 6, and the adhesive surface may be adhered to the base sheet 1 and fixed. Finally, the base material sheet 1 is punched out to form an emergency bandage of various shapes.

FIG. 2 is a cross-sectional view showing another embodiment of the emergency bandage of the present invention. Here, the same members as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. Illustration of the release paper is omitted. The embodiment shown in FIG. 2 is different from the embodiment shown in FIG. 1 in that a cushion material 5 is provided between the pad 3 and the base sheet 1. As described above, when the cushion member 5 is directly attached to the pad 3, the compressive force generated by the gas pressure in the cushion member 5 is directly transmitted to the affected part, so that the hemostatic effect is further increased. In addition, since the impact force from the outside is transmitted to the cushion material 5 via the base sheet 1 and the adhesive layer 2, the magnitude of the impact force to be absorbed or reduced by the cushion material 5 is reduced. Therefore, the cushion material 5 can more reliably prevent transmission of an impact force from the outside to the affected part. In the embodiment shown in FIG. 2, it is particularly preferable that the base material sheet 1 is a foamed sheet, since the load on the cushion material 5 is further reduced. Further, the base sheet 1 does not need to be completely flat, and a part thereof may form a curved surface.

The emergency bandage shown in FIG. 2 is manufactured, for example, as follows. That is, First, an adhesive is applied to one surface 1 a of the base sheet 1 to form an adhesive layer 2. Next, a cushion material 5 is fixed to a substantially central portion of the adhesive surface 2 a of the adhesive layer 2, and an adhesive is applied to a part of the cushion material 5 to form an adhesive layer 6. Then, the pad 3 is placed and fixed on the adhesive layer 6, and the entire adhesive surface 2a is covered with a release paper (not shown). The adhesive layer 6 may be formed by applying an adhesive to a part of the cushion material 5 in advance. Lastly, the adhesive tape to which the cushion material 5 and the pad 3 are adhered in this way is punched out to obtain an emergency plaster of various shapes.

FIG. 3 is a sectional view showing still another embodiment of the emergency bandage of the present invention. Here, the same members as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. Illustration of the release paper is omitted. The embodiment shown in FIG. 3 is different from the first embodiment in that the entire first-aid bandage is provided with two base sheets 1 and 1 ′, and the cushion material 5 is located between the two base sheets 1 and 1 ′. This is different from the embodiment shown in FIGS. In this way, when the cushioning material 5 is attached between the base material sheets 1 and 1 ', the cushioning material 5 does not fall off the base material sheet 1 for any reason, and can be used safely for a long time. Can be. In addition, since a part of the external impact force is absorbed by the plurality of base sheets 1, 1 and the adhesive layer 2, the external impact force on the affected area is combined with the absorption and cushioning action of the cushion material 5. Can be more reliably prevented from being transmitted. In the embodiment shown in FIG. 3, it is particularly preferable that the base material sheets 1 and 1 ′ are foam sheets, since the load on the cushion material 5 is further reduced. Further, the base sheets 1, 1 and 1 do not need to be made of the same material, but may be made of different materials.

The first-aid bandage shown in FIG. 3 is manufactured, for example, as follows. That is, first, an adhesive is applied to one surface 1a of the base sheet 1 to form an adhesive layer 2, thereby obtaining a first adhesive sheet. Similarly, a pressure-sensitive adhesive is also applied to one surface 1'a of the base sheet 1 to form a pressure-sensitive adhesive layer 2 'to form a second pressure-sensitive adhesive sheet. Next, a pad 3 is fixed to a substantially central portion of the adhesive surface 2a of the adhesive layer 2 of the first adhesive sheet, and the entire adhesive surface 2a is covered with a release paper (not shown). On the other hand, a cushion material 5 is placed and fixed substantially at the center of the adhesive surface 2'a of the adhesive layer 2 of the second adhesive sheet. Finally, the adhesive surface 2 ′ of the second adhesive sheet is placed on the first adhesive sheet. Then, the first and second pressure-sensitive adhesive tapes are punched into the same shape to obtain an emergency bandage.

FIG. 4 is an enlarged top view and a side view showing an example of a cushion material that can be used in the present invention. FIG. 4 (a) shows a single bag-like shape shown in the embodiment shown in FIG. FIG. 4 (b) shows a cushion material 5a composed of an aggregate of a plurality of hollow spherical bodies 7. FIG. As is clear from the figure, since the cushion material 5a in FIG. 4 (a) is a material in which the gas is sealed by a deformable thin film, the volume of the space in which the gas can move is relatively large. High flexibility of thin film deformation. Therefore, the cushioning material 5a has a large deformation force and has a high cushioning property against an external impact. In addition, since the thin film forms a uniform surface, it is possible to effectively use the compressive force provided by the gas inside and has a high hemostatic effect.

On the other hand, the cushion material 5b shown in FIG. 4 (b) is an aggregate of hollow spherical bodies 7 formed from elastically deformable spherical shells, as shown in the figure. Is filled with gas. Therefore, in addition to the buffer effect by the gas, it is possible to use the buffer effect by the elastic force of the spherical shell itself, thereby having a high buffering property against an impact force from the outside. In addition, since the volume occupied by the gas in each hollow spherical body 7 is relatively small, the rate of expansion and contraction of the gas due to a change in external temperature is small, and thus a stable buffering effect can be obtained. The diameter of the hollow spherical body 7 is usually set appropriately in the range of 0.1 to 5 mm, preferably in the range of 0.1 to 3 mm, and more preferably in the range of 0.1 to 2 mm. If the diameter of the hollow spherical body 7 is less than 0.1 mm, the buffering effect of the gas will be insufficient, while if it exceeds 5 mm, the overall thickness of the first-aid bandage will increase, giving a sense of incongruity and making packaging difficult. Becomes A plurality of hollow spheres 7 are connected to each other by a suitable binder such as a hot-melt adhesive or the like to form a cushion material 5b. In the present invention, the cushion material 5 may be made of a foam. Foam materials include polystyrene, AS, ABS, polyethylene, polypropylene, polyvinyl chloride, polyvinyl alcohol, polyamide, polyurethane, phenolic resin, urea resin, epoxy resin, acrylic resin, silicone, vinylanil resin, and poly. Isocyanate, polyimide, acetyl cellulose, Pisco A known resin such as stainless steel can be used alone or in combination of two or more. Example

Hereinafter, the present invention will be described specifically with reference to Examples and Test Examples. However, it goes without saying that the present invention is not limited only to these examples. Example:

As an example, an emergency bandage having the structure of FIG. 3 was manufactured as follows. That is, first, a silicone-acrylic pressure-sensitive adhesive was applied to one surface of each of the two base sheets made of a urethane nonwoven fabric, and a pressure-sensitive adhesive layer was formed to form the first and second sheets. A second adhesive tape was made. Next, a pad was attached to a substantially central portion of the adhesive surface of the first adhesive tape, and the adhesive surface was covered with release paper. On the other hand, a hollow cushion obtained by heat-sealing the edges of a polyethylene bag was placed and fixed substantially at the center of the adhesive surface of the second adhesive sheet. Finally, the first and second pressure-sensitive adhesive sheets were stuck together so that both sheets sandwiched the hollow cushion, and punched into rounded rectangular shapes at both ends to produce an emergency bandage. Comparative example:

As a comparative example, an emergency bandage was produced in the same manner as in the example except that the hollow cushion was not used. The materials used for the base sheet and the pressure-sensitive adhesive layer were a vinyl chloride film and a rubber-based pressure-sensitive adhesive, respectively. The following tests were performed on the emergency bandages thus obtained in Examples and Comparative Examples. Hemostasis test:

Hemostasis tests were performed according to Farmakol Toksikol, 52, 4.48-52 (1989) (PE 3 HHK 0 B KM, etc.). That is, the back skin of male Wistar rats (7 W) was Using a punch with a diameter of 5 mm, punched in two places, and in one of the holes the emergency first-hand plaster of the example whose weight was measured in advance, and in the other hole the first-aid adhesive plaster of the comparative example whose weight was measured in advance, The release paper was peeled off and attached. Ten minutes later, both emergency bandages were peeled off, the weight of each bandage was measured, and the weight of adhered blood was calculated according to the following formula.

Adhered blood weight = bandage weight 10 minutes after application-weight of adhesive bandage before application

This test was performed three times to compare the hemostatic effects. Table 1 shows the results. Attached blood volume (mg)

Buffer test:

The first-aid bandages of Examples and Comparative Examples were peeled off and pasted on a phenolic resin plate, and the approximate center of each bandage was measured at a speed of 50 mmZin with a disk-shaped probe with a 3 mm diameter tip. The stress when compressed by 3 mm was measured using Rheome Ichiichi (manufactured by Sun Kagaku). This test was performed three times to compare the buffer capacity. Table 2 shows the results. Table 2 Stress (g) Example Comparative Example

1st 140 1640

2nd 200 1300

3rd 200 1620

Average soil standard deviation 180 ± 35 1520 ± 1 91 Adhesion test:

The first and second joints of the index finger of the 20 subjects were affixed with the emergency stem plasters of the example and the comparative example, and a five-step evaluation was performed on the sticking comfort and impact relaxation. Table 3 shows the results. Table 3

Number of people

Industrial applicability

According to the first-aid bandage of the present invention, impact force from the outside world is effectively absorbed or mitigated by the cushioning material, so that severe pain is not given to the affected part when careless contact is made. Also, since the capillaries near the affected area can be pressed by the pressing force provided by the cushioning material, it has a high hemostatic effect. Since the cushion material is directly fixed to the base sheet, there is no danger of falling off during use. Furthermore, since the flat pad is used, the first-aid bandage itself can be made thinner, less noticeable, easier to use, and less uncomfortable when used.

According to the first-aid bandage of the present invention in which the pad and the cushioning material sandwich the base sheet, the pad is inevitably exposed to the outside. In addition to the above-mentioned function, the cushioning material is exposed to the outside. As a result, it is possible to directly absorb the impact force from the outside world, and it is possible to provide a higher cushioning property and to improve the protection function of the affected part. According to the emergency bandage of the present invention in which the cushioning material is located between the pad and the base sheet, the pressing force from the cushioning material is directly transmitted to the affected area in addition to the above-mentioned function and function. However, higher hemostasis can be obtained. In addition, opposition from the outside world Since the impact force is transmitted to the cushion material via the base sheet and the adhesive layer, it is possible to more reliably prevent the transmission of an impact force from the outside to the affected part.

According to the first-aid bandage of the present invention having a plurality of base sheets, pads and cushioning material, the cushioning material is located inside the bandage in addition to the above-described functions and functions, so that it can be used safely for a long time. Can be. In addition, since a part of the impact force from the outside is absorbed by the plurality of base sheets, transmission of the impact force from the outside to the affected part can be more reliably prevented.

According to the emergency bandage of the present invention in which the cushion material is a deformable bag-like material containing a gas therein, in addition to the above-described actions and functions, the affected part is affected by a compression force caused by the gas sealed in the cushion material. Since it can strongly compress nearby capillaries, it has a high hemostatic effect.

According to the first-aid bandage of the present invention in which the cushion material is formed of a hollow spherical body, in addition to the buffering effect of the gas sealed in the hollow body, the elastic force of the membrane itself constituting the cushion material It is possible to obtain a high buffering effect. In addition, since the influence of the expansion and contraction of the gas due to a temperature change or the like is small, a stable buffer effect can be maintained.

According to the emergency bandage of the present invention in which the cushion material is formed of a foam, the production of the cushion material is easy, and the usability can be further improved.

Moreover, according to the first-aid bandage of the present invention in which the maximum thickness of the cushioning material is 0.1 to 5 mm, it is possible to make the whole as a book-type without any uncomfortable feeling, and to make it easier to use. In addition, the packaging of the bandage itself becomes easy.

According to the emergency bandage of the present invention in which the base material sheet is a foamed sheet, it is possible to obtain a further protective effect on the affected part by the cushioning effect of the base material sheet itself in addition to the cushioning effect of the cushion material. it can.

Claims

The scope of the claims

1. An emergency bandage that includes a base sheet, a flat pad that contacts the affected area, and an elastically deformable cushion material.

2. The emergency bandage according to claim 1, wherein the pad is fixed to one surface of the base sheet, and the cushion material is fixed to the other surface of the base sheet.

3. The emergency bandage according to claim 1, wherein the cushion material is located between the pad and the base sheet.

4. An emergency bandage comprising a plurality of base sheets, a flat pad in contact with the affected area, and an elastically deformable cushion material,

The emergency mixing plaster wherein the cushion material is located between the respective base sheets.

5. The emergency bandage according to claim 1, wherein the cushion material is capable of absorbing at least a part of an external force acting on the pad.

6. The emergency bandage according to any one of claims 1 to 5, wherein the cushion member is formed of a bag-like material in which gas is sealed by a deformable thin film.

7. The emergency bandage according to any one of claims 1 to 5, wherein the cushion material is formed of a hollow spherical body having a diameter of 0.1 to 5 mm.

8. The emergency bandage according to any one of claims 1 to 5, wherein the cushion material is made of a foam.

9. The emergency bandage according to any one of claims 1 to 8, wherein the maximum thickness of the cushion material is 0.1 to 5 mm.

10. The emergency bandage according to any one of claims 1 to 9, wherein the base sheet is a foam sheet.