JP2006025918A - Coating material fixing auxiliary material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating material fixing auxiliary material, when treating a wound, facilitating to fix a coating material according to a wound surface, preventing the leakage of exudate, and preventing pressure on the wound surface. <P>SOLUTION: This coating material fixing auxiliary material 1 is provided with an absorbent base material part 2 formed into a tape shape and a sticking part 3 formed by applying a pressure-sensitive adhesive, which has adherence to the skin, at least to one surface of the absorbent base material 2; and is so constituted that the absorbent base material 2 absorbs excessive exudate on the wound surface S with the sticking part 3 fixed to the skin. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a covering material fixing auxiliary material used when fixing a dressing material, gauze, bandage, etc. for covering a wound surface (hereinafter referred to as a covering material) to the skin, and in particular while maintaining a moist environment of the wound surface. The present invention relates to a device suitable for wound treatment.

  In recent years, treatment methods (so-called conservative therapy, closure therapy, etc.) that promote wound healing by actively using components contained in exudate from a wound site have been performed. In such a treatment method, it is necessary to maintain a moist environment of the wound surface by the exudate. Therefore, in medical practice, the wound surface is covered directly with a dressing material such as a dressing material such as a film, and surgical tape is applied to the entire circumference of the coating material so that the exudate does not leak outside the coating surface. It has been done to maintain a moist environment on the wound surface.

  However, the amount of exudate may increase depending on the condition of the wound and the size of the wound surface. When fixing the covering material as described above, when the amount of the exudate increases, the exudate fills a small gap between the wound surface and the covering material, and the exudate accumulated in the gap becomes high pressure. For this reason, the wound surface was unnecessarily pressed with the exudate, and the healing surface was sometimes depressed. In addition, since the exudate easily enters the adhesive surface of the surgical tape, the exudate often leaks out of the coated surface, and it has been necessary to reapply frequently. Furthermore, the leaked exudate may stain clothes, sheets, etc., which may cause discomfort to the patient.

  Accordingly, an object of the present invention is to provide a dressing fixing auxiliary material that facilitates fixing a dressing according to the form of a wound surface during wound treatment, prevents leakage of exudate, and prevents pressure on the wound surface. There is.

  In order to solve the above-described problems, the present invention provides an absorbent base material in which a covering material fixing auxiliary material is formed in a tape shape or a sheet shape, and adhesion to skin on at least one surface of the absorbent base material portion. The adhesive base material portion absorbs excessive exudate on the wound surface in a state where the adhesive base material portion is applied to the skin and the adhesive base portion is fixed to the skin.

  The covering material fixing auxiliary material having the above-described structure is an adhesive base material formed in a tape shape or a sheet shape, and an adhesive material in which an adhesive material having adhesiveness to the skin is applied to at least one surface of the absorbent base material portion. It can be easily cut out according to the shape and size of the wound surface and attached to the skin. Here, when the covering material fixing auxiliary material is attached to the skin near the wound surface, if the exudate is excessive, the absorbent base material portion absorbs the exudate, so that the exudate may leak from the coating surface. It is prevented and pressure on the wound surface is prevented.

  As described above, according to the present invention, it is easy to fix the dressing according to the form of the wound surface during wound treatment, and the dressing fixing prevents the exudate from leaking and prevents the wound from being compressed. Auxiliary materials can be provided.

A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the covering material fixing auxiliary material 1 according to the first embodiment includes an absorbent base material portion 2 formed in a tape shape and skin on one surface of the absorbent base material portion 2. And a covering portion fixing portion 4 applied with an adhesive material having adhesiveness to the covering material C on the other surface, and wound in a roll tape shape. It is a thing. Cut lines 5 are formed on the absorbent base material portion 2 at regular intervals. The sticking part 3 and the covering material fixing part 4 are covered with a release paper 6. The covering material fixing auxiliary material 1 is configured such that the absorbent base material portion 2 absorbs excess exudate on the wound surface in a state where one surface is attached to the skin by the adhesive force of the applying portion 3.

  The absorptive base material part 2 is formed using the airlaid nonwoven fabric containing a water-insoluble chemical fiber and a highly water-absorbent resin. Here, the air-laid nonwoven fabric uniformly disintegrates raw pulp fibers and short fibers in the air, deposits the fibers on a rotary perforated cylinder or a movable screen, and sprays an adhesive to bond the fibers. The non-woven fabric performed is, for example, manufactured by the DAN-WEB method or the Honshu method. Since the air-laid nonwoven fabric is bonded between fibers, when the covering material fixing auxiliary material 1 is cut by the cut line 5, the highly water-absorbent resin powder, fluff pulp and the like are not easily dropped off.

In addition, it is preferable that the water absorption amount of the absorptive base material part 2 is 500 g / m < ² > or more and less than 5000 g / m < ² >. When the water absorption amount of the absorbent base material ^{2 is} less than 500 g / m ² , the absorption performance is insufficient, so that the exudate is likely to leak and the wound surface is easily pressed. If it is 5000 g / m ² or more, the absorbency is too strong, and the wound surface may be too dry.

The water absorption is a value obtained by the following measurement method.
(1) A test piece having a diameter of 50.0 mm, a depth of 80.0 mm, a distance between the wires of 20 mm, and a weight of 3.0 g, prepared from a 65 mm × 100 mm test piece using a copper wire having a diameter of 0.4 mm. Put in the cage, lay the cage from the height of 12 mm above the water surface at a water temperature of 24 ° C. to 26 ° C., and gently drop it into 0.9% physiological saline with a depth of 200 mm.
(2) After allowing the settled basket to stand at the bottom of the water for 3 minutes, lay down gently from the physiological saline solution, drop the physiological saline dropwise onto a No. 10 sieve wire mesh for 1 minute, and measure the weight.
(3) The value obtained by subtracting the empty test value of the car only and the weight of the test piece from the measurement value obtained in (2) above, and converting it to the measurement area m ² is taken as the absorption amount.

  Moreover, in order to improve the absorptive liquid absorbency and retainability, it is preferable that the absorbent base material portion 2 includes a highly water-absorbing resin. Here, the highly water-absorbent resin is one that quickly absorbs and swells a liquid and gels. For example, polyacrylic acid-based, starch-based, carboxylmethylcellulose-based, polyvinyl alcohol-based, polyethylene oxide-based so-called superabsorbent resin (SAP), natural polysaccharides having high water absorption such as alginic acid and dextran, etc. are powdered , Granular or fibrous can be used.

  The absorptive base material part 2 can also be formed only from an airlaid nonwoven fabric. In this case, it is preferable to use airlaid pulp having excellent water absorption for the airlaid nonwoven fabric. However, when airlaid pulp absorbs exudate, the hydrogen bonds between the pulp fibers are broken, and the strength decreases. In addition, as described above, when a highly water-absorbent resin is included, the resin expands in the air-laid pulp with gelation, so that the bond between fibers is impaired, and particularly the strength of the air-laid pulp is greatly reduced.

  Therefore, the air-laid nonwoven fabric forming the absorbent base portion 2 includes water-insoluble chemical fibers so that the wet strength can be maintained. For chemical fibers, for example, polyamides such as nylon 6 and nylon 66 (registered trademark), polyesters such as polyethylene terephthalate, synthetic fibers such as polyethylene and polypropylene, and recycled fibers such as viscose rayon and solvent-spun rayon are used. In particular, it is preferable to use a fiber having a fiber length of at least 5 mm or less and having a small decrease in strength when wet.

Moreover, the air laid nonwoven fabric including binder fibers can also be used. Here, the binder fiber refers to a fiber that exhibits an adhesive force by showing a change in the state of melting and solidification with a change in temperature. For example, a low melting point resin such as polyester or polyamide, a polyolefin resin, or the like A core-sheath type composite fiber and side-by-side type fiber made of two resins having different melting points (polyethylene resin / polypropylene resin, low melting point polyester resin / polypropylene resin, etc.) A composite fiber etc. are mentioned.

  As described above, the absorbent base material portion 2 is particularly preferably formed from an airlaid nonwoven fabric, but a porous film, a porous foam such as a sponge, a woven fabric, a knitted fabric, a laminate thereof, and an absorbent cotton Can also be formed from a laminated body formed by sandwiching a sheet material with a sheet material such as a nonwoven fabric.

  Such materials (especially sheet-shaped materials) tend to be strong as the thickness increases. Then, when forming the absorptive base material part 2 from a sheet-shaped material, it is preferable to perform perforate processing on the sheet-shaped material. Here, the perforating process refers to a process of making a large number of holes in a sheet-shaped material. Thereby, since the absorptive base material part 2 becomes soft and flexible, it becomes easy to follow along the skin surface. Moreover, since the absorptive base material part 2 can absorb the exudate more easily by a large number of holes or notches, the absorption speed of the exudate increases when the exudate starts to be absorbed.

  Since the absorbent base material portion 2 decreases in strength after absorbing the exudate, the covering material C peels off from the covering material fixing auxiliary material 1 during use due to collapse or decomposition, and the covering material fixing assistance after use. The wet strength is preferably 0.5 (kg / 100 mm) or more, and more preferably 1.0 (kg / 100 mm) or more, in order to prevent the material from being peeled off when the material 1 is peeled from the skin. preferable.

  The wet strength is determined by applying an autograph (Instron Model 4204) and applying the test conditions of “6.5 Tensile Strength and Elongation Ratio” of JIS L1085 “Nonwoven Fabrics Test Method”.

  In addition, when the wet strength of the absorbent base material 2 was tested by changing “water” in 2) to “0.9% physiological saline” in the procedure of “6.5.2 b”, It is preferably 0.5 (kg / 100 mm) or more, particularly preferably 1.0 (kg / 100 mm) or more.

  Further, the absorbent base material portion 2 preferably has a thickness of 5 mm or less in order to impart moderate flexibility and absorbency, and 0.5 mm or more in order to impart more excellent flexibility and absorbency. The thickness is particularly preferably 1.5 mm or less.

  The sticking part 3 is formed on one surface of the absorbent base part 2 by applying an adhesive material having adhesiveness to the skin. The affixing part 3 is preferably formed on the entire surface of one side in order to ensure the maximum adhesion strength with the skin. For example, the adhesive part 3 for the affixing part 3 is solidly applied only on one side, or a lattice pattern. Alternatively, it may be partially formed on one surface by spraying in the shape of dots or dots.

  The adhesive material for the affixing part 3 can fix the covering material fixing auxiliary material 1 to the skin by tack force, and can peel the covering material fixing auxiliary material 1 from the skin after use. Use a peel-off type. It is preferable to use one having as little irritation to the skin as possible. Examples of the adhesive material for the affixing portion 3 satisfying such requirements include acrylic, silicone, natural rubber, and synthetic rubber adhesives, natural polymers such as gelatin, alginic acid, and tragacanth rubber, and methylcellulose. And hydrogel adhesives of synthetic polymers such as ethyl cellulose, hydroxyethyl cellulose semi-synthetic polymer, polyvinyl alcohol, polyvinyl pyrrolidone and sodium polyacrylate.

  On the other hand, the covering material fixing portion 4 is formed on the other surface of the absorbent base material portion 2 by applying an adhesive material having adhesiveness with the covering material C. The covering material fixing portion 4 may be formed on the entire other surface. When forming the covering material fixing portion 4, it is preferable to secure the maximum surface area effective for absorption in the absorbent base material portion 2. Specifically, in order to prevent the absorption performance of the absorptive base material portion 2 from being deteriorated, the covering material fixing portion 4 is solidly coated with an adhesive for the covering material fixing portion 4 only on one side, or is formed in a lattice pattern or dots. It may be formed partially on the other surface by spreading in a pattern.

  As the adhesive material for the covering material fixing portion 4, a so-called permanent adhesive material that firmly adheres the covering material fixing auxiliary material 1 and the covering material C can be used. Examples of such permanent adhesive materials include natural rubber-based, synthetic rubber-based, acrylic-based, silicone-based, vinyl-based adhesive materials other than acrylic, and urethane-based adhesive materials. Of course, as the adhesive material for fixing the covering material, a re-peeling type material similar to the adhesive material for the sticking part 3 can also be used.

  The adhesive material for the affixing portion 3 and the adhesive material for the covering material fixing portion 4 may be any of solvent type, latex type, hot melt type, emulsion type, and water-soluble type. It is good to apply to the material part 2.

  The cut lines 5 are formed at regular intervals in the width direction of the covering material fixing auxiliary material 1. The cut line 5 is preferably formed in a linear shape or a curved shape by perforating or embossing the absorbent base material portion 2. Thereby, since the tear strength is reduced, the covering material fixing auxiliary material 1 is easily cut out according to the shape and size of the wound surface. Note that the tear line 5 is preferably formed across the absorbent base portion 2 and the release paper 6.

An example of a method of using the covering material fixing auxiliary material 1 configured as described above will be described.
First, the covering material fixing auxiliary material 1 is pulled out from the end of the roll and appropriately cut out by the cutting line 5. Next, after peeling off the release paper 6, as shown in FIGS. 3 and 4, the surface provided with the affixing portion 3 is affixed to the skin, and the wound surface S is surrounded by the cut piece of the covering material fixing auxiliary material 1. Like that. Finally, the covering material C that covers the wound surface S and that is cut out so as to cover the covering material fixing auxiliary material 1 is stacked on the covering material fixing portion 4 and lightly pressed by hand to complete the fixing of the covering material C. It is not necessary to surround the entire circumference of the wound surface S with the cut piece. For example, when the wound surface S is relatively small, the wound surface S can be pasted so as to sandwich the wound surface S. In this case, the portion around the covering material C other than the portion overlapping the covering material fixing portion 4 is fixed to the skin with a surgical tape or the like.

  As described above, when the covering material fixing auxiliary material 1 is used, the covering material can be fixed and the covering surface can be easily closed. Moreover, since the absorptive base material part 2 absorbs exudate, it can also prevent that exudate leaks out of a coating surface. Moreover, since the covering material C is floated from the wound surface S by the covering material fixing auxiliary material 1, the wound surface S is hardly pressed.

  In the covering material fixing auxiliary material 1, the covering material fixing portion 4 may be omitted. In this case, the covering material C is stacked on the other surface of the absorbent base material 2 and used to be fixed to the skin with a surgical tape or the like.

  In this invention, an absorptive base material part can also be formed in a sheet form. As an example, a second embodiment of the present invention will be described with reference to FIGS. In the following, only the differences from the first embodiment will be described. As shown in FIGS. 5A, 5B, and 6, the covering material fixing auxiliary material 11 includes a sheet-like absorbent base material portion 12 and a pasting portion 13 partially formed on one surface. And the cutting lines 15 are formed at regular intervals in the vertical and horizontal directions. In the covering material fixing auxiliary material 11, as in the first embodiment, the affixing portion 13 can be formed on the entire surface of the absorbent base material portion 12, and the cutting line 15 is arranged in one vertical or horizontal direction. It can also be formed only.

  The covering material fixing auxiliary material 11 does not include a covering material fixing portion. Therefore, when the covering material fixing auxiliary material 11 is used, as shown in FIG. 7, after covering the covering material C on the other surface of the absorbent base material portion 12, the surroundings of the covering material C are surgical tape T or the like. Fix to the skin with.

  Of course, in this invention, a covering material fixing | fixed part can also be formed in a sheet-like absorptive base material part. As an example, a third embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 8 and 9, the covering material fixing auxiliary material 21 includes a wide sheet-like absorbent base material portion 22, a sticking portion 23, and a covering material fixing portion 24, and is wound into a roll sheet shape. It has been turned. The affixing part 23 is covered with a release paper 26 having releasability on both sides.

  In the covering material fixing auxiliary material 21, the release paper 26 is wound so as to be on the outer surface side, and the release paper on the covering material fixing portion 24 side is omitted. For this reason, the covering material fixing auxiliary material 21 requires less time to peel off the release paper during use, and can be applied in a short time. Further, in the covering material fixing auxiliary material 21, it is possible to simplify the production line and reduce the number of members because the release paper on the covering material fixing portion 24 side can be omitted. In the covering material fixing auxiliary material 21, a release paper can be provided on the covering material fixing portion 24 side, and the release paper on the sticking portion 23 side can be omitted. Further, the covering material fixing auxiliary material 21 can be formed into a simple sheet shape as shown in FIG. 5 without being wound into a roll sheet shape. In this case, both sides of the pasting part 23 and the covering material fixing part 24 are covered with release paper.

  In the present invention, the covering material fixing auxiliary material can be wound into a roll shape without using a release paper. As an example, a fourth embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 10 and 11, the covering material fixing auxiliary material 31 includes a wide tape-like absorbent base material portion 32 and a sticking portion 33 and is wound into a roll tape shape. In the covering material fixing auxiliary material 31, releasability is imparted to the other surface of the absorbent base material portion 32, and the other surface is wound so as to be on the outer surface side. Thereby, the covering material fixing auxiliary material 31 can be applied in a shorter time and can be manufactured at a lower cost.

The whole perspective view of the covering material fixing auxiliary material which concerns on 1st Embodiment. The expanded sectional view of the II-II line of FIG. The use condition figure of the covering material fixing auxiliary material of FIG. The expanded sectional view of the IV-IV line of FIG. (A) The top view of the coating | covering material fixing auxiliary material which concerns on 2nd Embodiment, (b) The back view of (a). The expanded sectional view of the VI-VI line of Fig.5 (a). FIG. 6 is an enlarged view showing a cross-sectional display of the usage state of the covering material fixing auxiliary material of FIG. The whole perspective view of the covering material fixing auxiliary material which concerns on 3rd Embodiment. The partial expanded sectional view of the IX-IX line of FIG. The whole perspective view of the covering material fixing auxiliary material which concerns on 4th Embodiment. The partial expanded sectional view of the XI-XI line of FIG.

Explanation of symbols

1, 11, 21, 31 Covering material fixing auxiliary material 2, 12, 22, 32 Absorbing base material part 3, 13, 23, 33 Sticking part 4, 24 Covering material fixing part 5, 15, 25, 35 Cut line 6, 16, 26 Release paper C Coating material

Claims (6)

  An absorptive base material portion formed in a tape shape or a sheet shape, and an affixing portion in which an adhesive material having adhesiveness to the skin is applied to at least one surface of the absorptive base material portion. A covering material fixing auxiliary material in which the absorbent base material part absorbs excessive exudate on the wound surface in a state of being fixed to the surface.   The covering material fixing auxiliary material according to claim 1, further comprising a covering material fixing portion on which an adhesive material having adhesiveness to the covering material is applied to the other surface of the absorbent base material portion. The covering material fixing auxiliary material according to claim 1 or 2, wherein the water absorption amount of the absorbent base material portion is 500 g / m ² or more and less than 5000 g / m ² .   Autograph (Instron Model 4204) was used, and the test conditions were applied mutatis mutandis according to “6.5.2” of JISL 1085 “Nonwoven fabric test method” (hereinafter referred to as wet strength). 4. The covering material fixing auxiliary material according to claim 1, wherein when obtained, the wet strength of the absorbent base material portion is 0.5 (kg / 100 mm) or more.   The covering material fixing auxiliary material according to any one of claims 1 to 4, wherein the absorbent base material portion includes a highly water-absorbing resin.   The covering material fixing auxiliary material according to any one of claims 1 to 5, wherein a cut line is formed in the absorbent base material portion.

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