JP2000201999A - Skin plaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin plaster capable of easily and effectively applying heat stimulation and/or cold stimulation to reflex points. SOLUTION: This plaster comprises an approximately conical pressing part 1 with a round tip formed of a flexible wall and having liquid filled inside, and a flexible sheet-like support part radially spread around the bottom face of the approximately conical pressing part 1. The bottom face of the pressing part has a diameter of 5-10 mm, and the tip of the pressing part 1 is protruded to the height of 4-8 mm with respect to the support part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin patch to be applied to the skin to press, heat or cool a limited area of a body surface.

[0002]

2. Description of the Related Art Since ancient times, treatments for so-called "pots" on the body surface have been stimulated by acupuncture or thermal stimulation by moxibustion to adjust the condition of the body and to relieve shoulder stiffness, coldness and other various symptoms. In addition to clinical practice, treatment of pathological pain and acupuncture techniques are also being practiced.
Shiatsu, which is a therapy for applying pressure to a "pot" with a finger, is also widely performed. Inspired by these, "pot"
Various patches have been known which are intended to alleviate physical symptoms such as shoulder stiffness by applying some kind of stimulus such as magnetic force by a magnet or a drug such as methyl salicylate to the stimulus.

[0003]

[Problems to be solved by the invention] However, "pot"
The effect of these conventional patches to be applied is not always clear. Nevertheless, they have been used as alternatives to acupuncture and moxibustion because the treatment with acupuncture and moxibustion is complicated and cannot be performed easily by oneself. Therefore, there is a potential need for a new type of device that is superior to such conventional patches and that can easily apply a physical stimulus to the "pot" that can replace acupuncture and moxibustion.

[0004] Against this background, the present inventors have:
A device that can easily and effectively apply a thermal stimulus and a cold stimulus to the “pot” is examined, and a roughly conical device filled with a heated or cooled liquid is pressed against the “pot”. It has been found that by allowing fixation, a moderately controlled warm or cold stimulus can be applied locally to the "pot" portion.

[0005]

In other words, the present invention provides a substantially conical pressing portion having a round end and formed of a flexible wall, in which a liquid is sealed, and the substantially conical pressing portion. And a flexible sheet-like support extending radially around the bottom surface of the skin patch.

[0006] In this skin sticking device, after heating or cooling the liquid sealed in the pressing portion, the tip of the pressing portion is pressed against a “pot” to be applied to the skin, and an appropriate skin adhesive is used. By adhering the support to the skin surface, it is possible to apply a thermal stimulus or a cold stimulus to the “pot” while the liquid in the pressing portion returns to the normal skin temperature. In the present invention, since a liquid is sealed in the pressing portion, the heat distribution in the pressing portion is substantially always uniform by convection, and uniform heating or cooling is performed on the skin surface in contact with the pressing portion. Can be. Further, since the pressing portion has a substantially conical shape, a pressing force can be continuously applied to the "pot" to which the pressing portion is applied, and the effect of acupressure can be obtained. Furthermore, in the present invention, the pressing portion has a substantially conical shape, but since the tip is rounded, the pressing portion does not have a sharp angle to the skin surface and does not apply unnecessary mechanical stimulation.

The liquid sealed in the pressing portion may be water,
An aqueous salt solution may be used. An example of the aqueous salt solution is hot spring water produced from 898 Yanakagakinai, Kaminono-shi, Hashimoto-shi, Wakayama Prefecture. An aqueous solution of a lower polyhydric alcohol such as ethylene glycol or glycerin may be used at room temperature (15 to 2).
(5 ° C.). In the case of lower polyhydric alcohol aqueous solution such as ethylene glycol used for antifreeze, the freezing point can be lower than 0 ° C, so that even when cooled, the liquid state can be maintained to a relatively low tone, and the uniformity of heat distribution can be improved. It has the advantage that it can be kept better and a uniform cold stimulus can be applied to the skin.

[0008] The skin patch of the present invention is intended for sticking to a “pot”. However, the effective area of the pressing force applied by a finger in acupressure is close to a circle having a diameter of about 8 mm. It has been investigated by the inventors. Therefore, setting the diameter of the pressing portion of the skin sticking device of the present invention to around this size is particularly advantageous in applying a stimulus to the “pot”. From this viewpoint, although not a definite limit, the bottom surface of the pressing portion preferably has a diameter of 5 to 10 mm, and more preferably 7 to 9 mm. In order to generate an appropriate pressing force, the height of the tip of the pressing portion is preferably 4 to 8 mm from the support portion, and more preferably 5 to 7 mm.

Accordingly, the present invention more specifically relates to the above-mentioned skin patch, wherein the bottom surface of the pressing portion has a diameter of 5 to 10 mm.
And the tip of the pressing portion is 4 to 8 mm with respect to the supporting portion.
Also provided is one characterized by protruding at the height of.

[0010] Further, it is necessary to support the pressing portion so as to press the pressing portion toward the skin surface so that the pressing portion does not fall down due to a load applied accidentally from the lateral direction.
For this purpose, it is particularly preferable that the support portion is spread in a substantially circular shape with the pressing portion (bottom surface) as a center. Also, in consideration of the stability of the support when applied to the back of the hand, the base of the finger, and the ease of use, the diameter of the support portion is preferably 13 to 25 mm, and more preferably 15 to 20 mm.
More preferably,

Further, by providing a gas-permeable container or chamber containing a heating agent so as to cover the bottom of the pressing portion, the liquid in the pressing portion is heated by the heat from the heating agent, and thereby the pressing is performed. Heat may be applied to the skin surface through the wall of the part.

[0012] Therefore, the present invention also provides the above-mentioned skin patch, wherein a breathable container or chamber containing a heating agent is provided so as to cover the bottom of the pressing portion. provide.

[0013] Separately, by providing a container or chamber containing a liquid so as to cover the bottom of the pressing portion, the heat capacity can be increased to extend the heat radiation time or heat absorption time when heating or cooling. Can be.

[0014] Accordingly, the present invention further provides a skin patch wherein a container or chamber containing a liquid is further provided so as to cover the bottom of the pressing portion. The liquid may be the same as the liquid contained in the pressing portion, but is not necessarily limited to this.

A doughnut-shaped pressure-sensitive adhesive layer is separately prepared on the side of the support portion that comes into contact with the skin, a pressure portion is passed through the hole, and the pressure-sensitive adhesive layer is stuck to the support portion. Can be pasted on. However, an adhesive layer may be provided from the beginning on the side of the support that contacts the skin,
The present invention also provides such a form of skin patch.

Further, the present invention provides the above-mentioned skin patch provided with an adhesive layer, wherein the surface of the adhesive layer has a sodium ion source, a hydrogen carbonate ion source, a chloride ion source, a magnesium ion source, and / or a silver ion source. There is also provided that the source is uniformly loaded. Such an adhesive layer is effective in preventing rash caused by the adhesive.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The skin patch of the present invention comprises polyethylene, polypropylene, polyethylene terephthalate,
It can be formed of polyvinyl chloride or other suitable soft plastic. It is preferable that the pressing portion exhibits a certain degree of flexibility while substantially maintaining the overall shape when pressed against the skin, so that a uniform pressing force can be applied to the “pot”. The support portion may be of a thickness that exhibits a degree of flexibility that allows the support portion to be tightly adhered in accordance with the curvature of the skin surface. Further, the support portion may be provided with a large number of pores in order to enhance air permeability.

As the pressure-sensitive adhesive used for applying the skin patch of the present invention to the skin, a rubber-based or acrylic-based pressure-sensitive adhesive commonly used in bandages, cataplasms and the like can be used as appropriate. These pressure-sensitive adhesives can be separately prepared as a donut-shaped pressure-sensitive adhesive layer having a size corresponding to the supporting portion of the skin patch of the present invention. An adhesive layer having such a shape is well known. When using the skin patch of the present invention, peel off the release paper on one side of the doughnut-shaped pressure-sensitive adhesive layer, and pass the pressure-sensitive portion of the skin patch of the present invention through the hole to attach the adhesive surface to the support of the skin patch. After the attachment, the release paper on the opposite side may be peeled off, and the pressure-sensitive adhesive layer of the support portion may be pressed against the skin surface while the pressing portion is pressed against the skin surface to adhere. As another form, such a doughnut-shaped pressure-sensitive adhesive layer may be provided on the support portion from the beginning to provide the skin patch of the present invention.

As the pressure-sensitive adhesive, the above-mentioned conventional pressure-sensitive adhesive may be used as it is. However, in the case of a person with sensitive skin, there is a problem that a rash is likely to occur at a sticking site. In recent years,
Although the use of an acrylic pressure-sensitive adhesive as a pressure-sensitive adhesive having a relatively low irritation is spreading, it is known that rashes still occur in many cases. In particular, in the case of skin that is particularly sensitive to foreign bodies such as atopic constitution, even if the adhesive layer is applied to the skin for a relatively short period of time, it is easy to cause rash, resulting in itching and redness,
It is often difficult to continuously apply the product to the same site.

The present inventor has found that by carrying a specific ion source on the surface of the pressure-sensitive adhesive, an excellent effect of preventing skin rash can be obtained. That is, a sodium ion source of a moderate concentration on the surface of the pressure-sensitive adhesive layer, a hydrogen carbonate ion source, a chlorine ion source and a magnesium ion source, and
By supporting a silver ion source, rash on the skin is prevented or significantly suppressed as compared with an adhesive that does not support them. As the sodium ion source, bicarbonate ion source, chlorine ion source and magnesium ion source,
It is sufficient that the silver ion source is simply supported on the surface of the pressure-sensitive adhesive layer in the form of sodium chloride, sodium bicarbonate, and magnesium chloride. Fine particles) may be carried on the surface of the pressure-sensitive adhesive layer.

Although it is not a strict boundary, the preferable distribution range of sodium chloride on the surface of the pressure-sensitive adhesive layer is 200 to 120.
0 μg / cm ² , more preferably 400-800 μm
g / cm ² . For sodium bicarbonate, the preferred distribution range is 200-1200 μg / cm ² , more preferably 400-800 μg / cm ² .
For magnesium chloride, the preferred distribution range is 15 to 120 μg / cm ² , more preferably 3 to 120 μg / cm ^2.
0 to 60 μg / cm ² .

Similarly, the distribution range of the silver fine particles carried on the surface of the pressure-sensitive adhesive layer is not a strict boundary, but the amount of silver itself is preferably ¹ to 350 μg / cm ² , More preferably, it is 200 μg / cm ² .
Although the average particle size of silver fine particles is not a strict boundary,
It is preferably about nm to 50 μm.

This improvement in pressure-sensitive adhesive can be carried out in various types of pressure-sensitive adhesives such as rubber-based and acrylic-based pressure-sensitive adhesives, and any type is effective in preventing or suppressing the occurrence of rash. A method for uniformly supporting a sodium ion source, a hydrogen carbonate ion source, a chlorine ion source, a magnesium ion source, and / or a silver ion source on the surface of the pressure-sensitive adhesive layer,
There is no particular limitation. First, these ion sources may be adhered in the form of fine powder particles or the like to the surface of a conventional adhesive that does not contain these ion sources, or by using an adhesive premixed with these ion sources, A skin patch carrying these ion sources on the surface of the adhesive (and inside the adhesive) may be manufactured. In addition, these ion sources (sodium chloride, sodium bicarbonate, magnesium chloride,
(Silver fine particles) may be adhered to the surface of the pressure-sensitive adhesive layer, or fine powder particles may be directly contacted and adhered to the surface of the pressure-sensitive adhesive layer as an ion source, or these ion sources can be evaporated such as water. Each ion source by dissolving and / or dispersing it in a small amount of a medium, and evaporating the medium while bringing the resulting solution or suspension into contact with the surface of the adhesive layer of the patch. May be deposited and adhered.
In this regard, as an aqueous solution containing all of sodium ion, bicarbonate ion, chlorine ion and magnesium ion in a suitable balance, it has been developed as a water solution containing 8 kinds of Yanakagakiuchi, Jinano Jinno, Hashimoto City, Wakayama Prefecture.
Hot spring water produced from address 98 is cited as a particularly preferred example and exhibits an excellent anti-rash effect.

The silver fine particles may be fine particles composed of only silver, or fine particles in which silver is supported by coating or the like on the surface of suitable carrier fine particles or pores communicating with the outside. There is no particular limitation as long as it is fine particles, and a commercially available silver powder or a commercially available silver colloid may be used. An example of the silver powder is a pure silver powder (particle size: 28 μm: manufactured by Nakatsuka Metal Foil Powder Co., Ltd.). An example of the silver colloid is “ATOMY BAL
L) "(the carrier fine particles are coated with silver: particle diameter 10 nm: manufactured by Catalyst Chemical Industry Co., Ltd.).

To prevent rash, a sodium ion source,
It is particularly preferable that all of the hydrogen carbonate ion source, the chloride ion source and the magnesium ion source are supported on the surface of the pressure-sensitive adhesive layer, whereby the rash prevention effect is superior to using a part of these ion sources. Can demonstrate. The silver fine particles, which are a silver ion source, are preferably supported on the surface of the pressure-sensitive adhesive layer together with a sodium ion source, a hydrogen carbonate ion source, a chloride ion source, and a magnesium ion source. The prevention action can be demonstrated. The mechanism by which these ion sources exhibit anti-rash action is currently unclear. When a silver ion source is included, an antibacterial effect due to silver ions on the application surface can be expected.

The exothermic agent for applying a thermal stimulus to the "pot" by the skin patch of the present invention is not particularly limited, but the exothermic agent containing iron, activated carbon, salt and water, which is widely used in commercially available disposable warmers. Agents can be used. The exothermic agent is placed in a small container (for example, a flat mesh bag corresponding to the size of the bottom surface of the pressing portion) having an eye mesh from which the exothermic agent powder does not leak, and the bottom of the pressing portion is It may be attached to this by adhesively fixing it. To prevent heat generation when not in use, seal the skin patch individually in oxygen-impermeable packaging, or cover the heating agent container with an oxygen-impermeable sheet and heat seal and adhere the periphery. What is necessary is just to fix air-tightly to a support part with an agent etc. Alternatively, a heating agent enclosed in an appropriate small container may be separately prepared, and the heating agent may be attached to the bottom surface of the pressing portion of the skin attaching tool later using an adhesive. Further, the chamber containing the exothermic agent may be formed integrally with the bottom of the patch.

In order to apply a cold stimulus to the "pot" by the skin patch of the present invention, the skin patch of the present invention may be placed in a freezer, for example, to cool the liquid inside the pressing portion. Even if the stored liquid such as water freezes to a degree that freezes, heat transfer to and from the skin is performed gently through the plastic wall, and there is no fear of causing frostbite on the skin. Further, in the case of a type in which a container or a chamber containing a liquid is further provided so as to cover the bottom of the pressing portion, the heat capacity increases, so that it is particularly effective when cooled.

[0028]

EXAMPLES The present invention will be described more specifically with reference to typical examples, but it is not intended that the present invention be limited to the examples.

<Embodiment 1> FIG. 1 is an exploded view of a skin patch according to an embodiment of the present invention. In the figure, 1 is a pressing portion,
The external shape is generally conical, opening upward at the bottom and rounded at the tip. The pressing portion 1 is formed of a soft resin wall, thereby forming a substantially conical container space 3 therein, and water is stored in the container space 3 in this embodiment. Reference numeral 5 denotes a film extending in the radial direction from the peripheral edge of the pressing portion 1, and is integrally formed with the pressing portion 1 using the same material as the pressing portion 1. Reference numeral 10 denotes a circular flexible film made of the same material as the pressing portion 1 and the film 5, which covers the open bottom of the pressing portion 1 and is bonded or heat-sealed to the film 5 so that the inside of the pressing portion 1 is formed. And the support part 13 (see FIG. 2) is formed integrally with the film 5. The skin patch of the present example was put in a freezer, cooled, and when the thing in which the water inside was frozen was stuck to the `` pot, '' the melting heat of the water caused a cold stimulus to the site. Can be. In this embodiment, a salt solution, an ethylene glycol aqueous solution, a glycerin aqueous solution, or another liquid may be used as appropriate instead of water.

<Embodiment 2> FIG. 2 shows an embodiment in which a heating agent is attached to the skin patch of Embodiment 1. 1 in the figure
Reference numeral 3 denotes a supporting portion, and 15 denotes a flat bag-like container having a fine mesh containing therein a conventional exothermic agent containing iron powder, activated carbon, salt and a small amount of water. Is bonded so as to cover the entire bottom surface and a part of the support portion 13. The skin patch of this embodiment is packaged in an oxygen-impermeable resin bag until use, and when taken out of the bag and pasted on a “pot”, it oxidizes and starts generating heat, and the pressing portion 1 By heating the water inside, a thermal stimulus can be applied to the site.

<Embodiment 3> In this embodiment, a coolant is added to the skin patch of Embodiment 1, and as shown in FIG. 3, water, salt solution, ethylene glycol aqueous solution, glycerin aqueous solution or other A flat liquid container 17 made of a soft synthetic resin containing the above liquid is adhered so as to cover the entire bottom surface of the pressing portion 1 and a part of the support portion 13. For this reason, in the present embodiment, the heat capacity of the coolant of the entire skin patch is increased as compared with the first embodiment, and thus, when used after cooling,
The effect of cold stimulation is greater.

[0032]

According to the present invention, patients with stiff shoulders, low back pain, etc. can relax their symptoms by easily applying warm / cold stimulation to "pots" by themselves as an alternative to acupuncture and moxibustion. enable.

[Brief description of the drawings]

FIG. 1 is an exploded view of a skin patch according to an embodiment of the present invention.

FIG. 2 is a perspective view of a skin patch provided with a heating agent.

FIG. 3 is a perspective view of a skin patch with a coolant added.

[Explanation of symbols]

1 = pressing part, 3 = container space, 5 = film, 10 = film, 13 = supporting part, 15 = bag-like container, 17 = liquid container

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazuo Sasaki 2-57 Heiseidai, Koyama-Higashi-cho, Sonobe-cho, Funai-gun, Kyoto (72) Inventor Shogo Shigeoka 898 Yanakagakiuchi, Jinano, Hashimoto-shi, Wakayama Prefecture (72) Inventor Shoji Matsumoto 2-4-704 Aowamatanishi, Minoh-shi, Osaka F-term (reference) 4C099 AA10 CA01 CA03 CA07 CA09 CA11 EA08 GA02 LA01 LA08 NA20 TA10 4C101 BA01 BB00 BC02 BD09

Claims (10)

[Claims] 1. A substantially conical pressing part having a round end and formed of a flexible wall and having a liquid sealed therein, and radially extending around a bottom surface of the substantially conical pressing part. And a flexible sheet-like support portion. 2. The skin patch according to claim 1, wherein the liquid is selected from the group consisting of water, salt solution, lower polyhydric alcohol aqueous solution and oil which is liquid at ordinary temperature. 3. The pressing part according to claim 1, wherein a bottom surface of the pressing part has a diameter of 5 to 10 mm, and a tip end of the pressing part projects at a height of 4 to 8 mm with respect to the support part. Skin patch. 4. The skin sticking device according to claim 1, wherein said support portion has a substantially circular shape centered on said pressing portion. 5. The skin patch according to claim 1, wherein the diameter of the support is in the range of 13 to 25 mm. 6. The skin sticking device according to claim 1, wherein a breathable container or chamber containing a heating agent is provided so as to cover a bottom portion of said pressing portion. 7. The skin sticking device according to claim 1, wherein a container or a chamber containing a liquid is further provided so as to cover a bottom portion of said pressing portion. 8. The skin sticking device according to claim 1, wherein an adhesive layer is provided on a side of the support portion that contacts the skin. 9. The pressure-sensitive adhesive layer, wherein a sodium ion source, a hydrogen carbonate ion source, a chlorine ion source, a magnesium ion source, and / or a silver ion source are uniformly supported on the surface of the pressure-sensitive adhesive layer. Item 8. The skin patch according to Item 8. 10. A sodium ion source, a hydrogen carbonate ion source, a chloride ion source, and a magnesium ion source are made of a mixture of sodium chloride, sodium hydrogen carbonate and magnesium chloride, and the silver ion source is made of silver fine particles. The skin patch of claim 9.