JPH09173369A - Skin contact band with indicator function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to visually judge the use threshold of a skin contact band by the deterioration in its durability by providing this skin contact band with a hydrophilic compd. contg. a water-soluble dyestuff agent in a part or the whole of the inside of a tacky adhesive layer constituting the main body of the skin contact band or the peripheral region apart from the center of the tacky adhesive layer on the surface of the tacky adhesive layer. SOLUTION: The hydrophilic compd. contg. the water-soluble dyestuff agent is formed by mixing liquid isoprene rubber as a hydrophobic polymer and pectin as a hydrophilic polymer added with a dye as the water-soluble dyestuff agent. This compd. 3 is embedded in an annular form into the position of the prescribed distance (r) from the center 2 of the tacky adhesive layer 1. This skin contact band 4 is bored with a hole as shown by an alternate long and short dash line 5 in its central part according to the size of a user's stoma and is fixed to the stoma. When the liquid excrement from the stoma is penetrated down to the position of the compd. 3 by the deterioration or peeling of the tacky adhesive tape, the dyes included in the compd. 3 dissolve in the liquid excrement and diffuses into the tacky adhesive layer, thereby changing the color of this part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin graft used when an artificial bladder patient or a urinary incontinence patient treats excrement, or when a bronchial fistula patient treats secretory fluid.

[0002]

2. Description of the Related Art In excrement treatment of artificial bladder holders and urinary incontinence persons, and in liquid exudate treatment by surgery, for example, a skin graft having an adhesive layer around a stoma formed on the surface of the human body, Used as a bag for accommodating excrement or exudate discharged from the stoma in combination with the skin bond. This skin bond is fixed on the skin around the stoma with an adhesive layer and has the function of sealing the circumference of the stoma against the outside world, but during use, sweating from the skin, destruction of the keratin, movement of the skin However, there is a problem in that the adhesive force gradually decreases due to the influence of the load of the bag and the excrement from the stoma, and the exfoliation or exudate leaks.

In order to solve the above-mentioned problems, roughly divided, two methods have been tried. One is a technique to improve the composition of the adhesive layer to increase the adhesiveness, specifically, rubber-based, acrylic-based, vinyl acetate-based, silicon-based,
To improve the adhesive ratio by increasing the ratio of the elastomer component and the tackifier component to the urethane adhesive, and by changing the materials such as the elastomer component, tackifier component and filler component to increase the adhesive strength. One is to improve durability by improving the structure of the skin bond, increasing the adhesion area, giving flexibility, and imparting elasticity. However, with the improved composition of the adhesive layer, although the durability is improved, the peeling irritation at the time of peeling is high, the keratin of the skin is damaged, dermatitis is caused, and the method of increasing the adhesive area depends on the site to be used. There is a limitation that the durability is not significantly improved, and the method of imparting flexibility or elasticity gives the feeling of use, but the same adhesive composition reduces the adhesive strength and deteriorates the durability. It is necessary to change the adhesive composition to obtain a strong adhesive force, which causes the above-mentioned problems, and an ideal skin graft has not been obtained by any of the methods.

[0004] Particularly important point here is that when the importance of the durability of the skin graft is emphasized, it is necessary to treat the excrement of the artificial bladder holder and the urinary incontinence person, and to treat the liquid excrement by surgery. At the initial stage, it is an essential requirement for skin grafts that skin irritation is as small as possible, which cannot be dealt with by the solutions described above. In addition, the skin around the stoma is less resistant to excretion, so leaks must be avoided.

In view of the above-mentioned current situation, those who use skin wrapping should avoid the unexpected situation by exchanging the skin wrapping early without having a means for accurately determining the service life. Therefore, people are still required to dispose of things that can be used sufficiently, and the number of times of replacement increases, which causes their skin to be injured, and they are constantly forced to live with anxiety about leakage.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to visually determine the limit of use due to deterioration of the durability of the skin graft.

[0007]

In order to achieve the above-mentioned object, in the present invention, a part or all of the peripheral region in the adhesive layer constituting the skin-adhesive main body or on the surface of the adhesive layer away from the center of the adhesive layer is used. A hydrophilic formulation containing a water-soluble dye is provided.

Further, in the present invention, a hydrophilic compound containing a color former is provided in a part or all of the peripheral region of the adhesive layer constituting the skin adhesive body or on the surface of the adhesive layer away from the center of the adhesive layer, Provided in the excrement storage bag combined with the adhesive layer is an auxiliary agent that develops the color of the color developing agent by contacting the color developing agent.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a food additive dye, a dye is provided in a part or all of a peripheral region located at a distance from the center of the pressure-sensitive adhesive layer in the pressure-sensitive adhesive layer constituting the skin adhesive body or on the pressure-sensitive adhesive layer surface. , Is embedded or coated with a hydrophilic compound containing a water-soluble coloring agent such as a pigment or a metal salt, and is water-soluble when contacted with a hydrophilic compound containing a water-soluble coloring agent when liquid excrement or exudate penetrates. The dye dissolves and diffuses, changing the color of the diffused portion of the dye. This change makes it possible to visually check the limit of durability.

Further, in the present invention, a color-forming agent such as an indicator is contained in a part or all of a peripheral region located a distance from the center of the pressure-sensitive adhesive layer in the pressure-sensitive adhesive layer constituting the skin adhesive body or on the surface of the pressure-sensitive adhesive layer. When a hydrophilic compound is embedded or applied and liquid excrement or exudate penetrates and comes into contact with the hydrophilic compound containing the color-forming agent, that portion is dissolved and separated from the adhesive layer, and is bonded to the adhesive layer. It falls into the containing bag and contacts an auxiliary agent previously provided in the containing bag to cause a chemical reaction, whereby the color of at least one of the color former and the auxiliary agent changes. This change makes it possible to visually check the limit of durability.

As the adhesive layer, those conventionally used can be used, for example, a mixture of a hydrophobic polymer and a hydrophilic polymer is used. Hydrophobic polymers include polyisobutylene and butyl rubber, and hydrophilic polymers include karaya gum, carboxymethyl cellulose, pectin and gelatin.

The hydrophilic compound containing a coloring agent or a color former is preferably a mixture of a hydrophobic polymer or a hydrophobic synthetic resin and a hydrophilic polymer. Examples of the hydrophobic polymer include polyisobutylene, polybutene, styrene / isoprene / styrene / block copolymer, liquid isoprene rubber, isoprene rubber, butyl rubber, liquid rubber, and examples of the hydrophobic synthetic resin include epoxy resin, water-soluble curable urethane resin, and polyvinylpolystyrene. As the don and hydrophilic polymer, for example, karaya gum, carboxymethyl cellulose, pectin, guar gum, psyllium seed gum and the like can be used. These may be used alone or in combination of two or more.

As the water-soluble coloring agent, the above-mentioned food-added coloring matters, dyes, pigments and metal salts are used, and examples of the metal salts include copper sulfate, cobalt chloride, ferrous sulfate and nickel chloride. As the indicator of the color former, phenolphthalein and phenol red are used for the alkaline type, and bromocresol green, bromocresol blue, bromocresol purple, bromothymol blue and the like are used for the acid type.

As the auxiliaries, suitable ones are selected depending on the coloring agent. For example, dilute sodium hydroxide, dilute potassium hydroxide, water having a high concentration of OH ⁻ ions, acetic acid, dilute hydrochloric acid, etc. may be used. it can.

[0015]

Next, an embodiment of the present invention will be described.

An adhesive layer serving as the body of the skin graft was formed from 80 parts of horiisobutylene, 20 parts of butyl rubber, 30 parts of karaya gum, 30 parts of carboxymethyl cellulose and 30 parts of pectin, and formed into a square shape.

Example 1 20% to 90% of liquid isoprene rubber as a hydrophobic polymer and 80% of pectin as a hydrophilic polymer to which a dye was added as a water-soluble coloring agent.
10% to produce a hydrophilic mixture containing a water-soluble coloring agent, and as shown in FIG. 1, this is formed in a ring shape at a predetermined distance r from the center 2 of the adhesive layer 1 of the above-mentioned mixture. Formulation 3
Buried. According to the size of the user's stoma, the skin bond 4 has a hole at the center as shown by the alternate long and short dash line 5 and is fixed to the stoma. When liquid excretion from the stoma permeates to the position of the formulation 3 due to deterioration or peeling of the adhesive layer, the dye contained in the formulation 3 dissolves in the liquid excretion and diffuses into the adhesive layer. The color changes. Therefore, the user can visually recognize it and use it as a guide for changing the skin bond.

Example 2: 20% to 90% of polyisobutylene as a hydrophobic polymer, and 80% to 10% of karaya gum and pectin as a hydrophilic polymer with a food additive dye as a water-soluble coloring agent are mixed. A hydrophilic compound containing a water-soluble coloring agent is produced, and as shown in FIG. 2, this compound is formed on the entire surface of the region from the center 2 of the pressure-sensitive adhesive layer 1 to the outer peripheral edge of the pressure-sensitive adhesive layer from a position of a predetermined distance r. No. 6 was applied. When the liquid excrement permeates to the position of the mixture 6 also in the skin graft 7, the food additive pigment contained in the mixture 6 dissolves in the liquid excretion and diffuses into the adhesive layer, and the color of the part is changed. Change.

Example 3: 20% to 90% of butyl rubber as a hydrophobic polymer and 80% to 10% of guar gum as a hydrophilic polymer to which metal chloride cobalt chloride is added as a water-soluble coloring agent are mixed to prepare a water-soluble mixture. To produce a hydrophilic formulation containing a coloring agent and, as shown in FIG.
The compound 8 was embedded in a circle having a predetermined radius r from the center 2 of the composition. This skin bond 9 is also a mixture of liquid excrement 8
When it penetrates to the position of, the metal salt contained in the formulation 8 dissolves in the liquid excrement and diffuses into the adhesive layer, and the color of the part changes.

Example 4 20 to 99% of polyisobutylene as a hydrophobic polymer and 80% to 1% of karaya gum as a hydrophilic polymer to which phenolphthalein as a coloring agent is added as a coloring agent are mixed to form a coloring agent. A hydrophilic compound containing the same was produced, and as shown in FIG. 4a, the compound 10 was embedded in a ring shape at a position at a predetermined distance r from the center 2 of the adhesive layer 1 as in FIG. As shown in FIG. 4b, dilute sodium hydroxide 13 was inserted as an auxiliary agent into the storage bag 12 connected to the non-skin side of the skin bond 11. When the liquid excrement permeates to the position of the composition 10, the skin adhesive 11 dissolves the compound 10 containing phenolphthalein into the liquid excretion and separates it from the adhesive layer 1 into the accommodation bag 12. To fall. When this separating piece 14 comes into contact with the dilute sodium hydroxide 13, a chemical reaction occurs, the color of phenolphthalein changes sharply, and the change in the color can be visually recognized from the outside of the storage bag. You can know the time.

In each of the above-described examples, the hydrophilic compound containing the coloring agent or the coloring agent can be arranged in various manners from the position of a predetermined distance from the center of the adhesive layer to the outside in addition to the manner shown in the drawing. It can be embedded in the adhesive layer or applied to the surface of the adhesive layer in a manner.

In the above-mentioned Examples, the hydrophilic compound containing the water-soluble coloring agent or the color-developing agent was described as being provided in the adhesive layer at the stage of producing the skin graft, but it is not provided at the stage of producing, but provided at the stage of use. Good. That is, a hydrophilic composition containing a water-soluble coloring agent or a color-forming agent may be made into a paste, and an appropriate amount thereof may be applied to the surface of the pressure-sensitive adhesive layer at the time of using the skin tie. To make the hydrophilic compound into a paste, a liquid rubber (liquid isoprene rubber, for example, Claprene LIR50, LIR3
0, LIR503, liquid polybutene, such as Nisseki HV-
1900) 90-30% hydrophilic substances (natural polysaccharides, synthetic substances, etc., such as karaya gum, pectin, gum arabic, carrageenan, dammar gum, gelatin, CMC, H
MC, etc.) 10 to 70% and the above-mentioned water-soluble coloring agent or coloring agent 0.1 to 3%. An elastomer, a tackifier, a dispersant, a solvent and the like can be appropriately added to these mixtures. Instead of the liquid rubber, a viscous substance such as poly (methyl vinyl ether maleic acid) monoalkyl ester or polyvinyl pyrrolidone can be used. It should be noted that the paste-like hydrophilic composition should not be such that the adhesive strength of the adhesive layer is reduced by application. In this way, by applying a hydrophilic compound containing a coloring agent or a coloring agent for the first time at the time of use, the discoloration phenomenon gradually progresses due to the secular change during storage of the skin graft, and contact with liquid excrement or exudate It is possible to prevent it from being difficult to distinguish from the discoloration phenomenon.

[0023]

EFFECTS OF THE INVENTION According to the present invention, the phenomenon of permeation of liquid excrement due to deterioration of the adhesive layer is used, and this is detected as a change in color by a hydrophilic compound containing a coloring agent or a coloring agent. Therefore, it is possible to know for sure when the skin-care adhesive is to be used, so that the user can continue to use it without worry, and the skin-adhesive itself has the most suitable adhesive properties for the skin. Since it can be configured, it has the advantage of reducing skin damage.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of the present invention.

FIG. 2 is a front view of one embodiment of the present invention.

FIG. 3 is a front view of one embodiment of the present invention.

FIG. 4 is a front view and b is a vertical side view of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adhesive layer 2 Center of an adhesive layer 3 Hydrophilic compound containing a water-soluble coloring agent 4 Skin graft 6 Hydrophilic compound containing a water-soluble coloring agent 7 Skin bonding 8 Hydrophilic compound containing a water-soluble coloring agent 9 Skin adhesive 10 Hydrophilic compound containing color former 11 Skin adhesive 12 Storage bag

Claims (4)

[Claims] 1. A hydrophilic compound containing a water-soluble coloring agent is provided in a part or all of a peripheral region in the adhesive layer constituting the skin adhesive body or on the surface of the adhesive layer away from the center of the adhesive layer. A skin adhesive with a characteristic indicator function. 2. The water-soluble coloring agent is a food-added coloring matter, dye, pigment or metal salt.
Described skin bond. 3. A hydrophilic compound containing a color former is provided in a part or all of a peripheral region in the adhesive layer constituting the skin-adhesive body or on the surface of the adhesive layer and apart from the center of the adhesive layer, and the hydrophilic compound is bonded to the adhesive layer. A skin adhesive tie with an indicator function, characterized in that an auxiliary agent that causes a chemical reaction by contacting a color former is provided in the excrement storage bag. 4. The skin graft according to claim 3, wherein an indicator is used as the color former.