JP3159787U - Wound dressing - Google Patents

Wound dressing Download PDF

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JP3159787U
JP3159787U JP2010001637U JP2010001637U JP3159787U JP 3159787 U JP3159787 U JP 3159787U JP 2010001637 U JP2010001637 U JP 2010001637U JP 2010001637 U JP2010001637 U JP 2010001637U JP 3159787 U JP3159787 U JP 3159787U
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water
sheet
wound
wound dressing
exudate
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徳久 井原
徳久 井原
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ベストプロダクツ株式会社
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【課題】滲出液の多少にかかわらず、創傷部を常に安定して適度な湿潤状態に保つことができ、かつ創傷部に引っ付きにくい、治癒の促進に有効な創傷被覆材を提供する。【解決手段】創傷部に当接する側から、透水性の表面シート2、保水性シート3、吸水性の中間シート4、不透水性の裏面シート5の順に積層された創傷被覆材において、該表面シートがJISK6768に規定する表面濡れ張力が38〜54mN/mであって、かつ孔径0.1〜3mm、開孔率10〜50%の有孔フィルムであることを特徴とする。【選択図】図1[Problem] To provide a wound dressing material that can keep a wound part stably and in an appropriate moist state regardless of the amount of exudate, and that is difficult to be stuck to the wound part and effective in promoting healing. A wound dressing in which a water-permeable surface sheet 2, a water-retaining sheet 3, a water-absorbing intermediate sheet 4, and a water-impermeable back sheet 5 are laminated in this order from the side in contact with the wound part. The sheet is a perforated film having a surface wetting tension of 38 to 54 mN / m as defined in JISK6768, a pore diameter of 0.1 to 3 mm, and an aperture ratio of 10 to 50%. [Selection] Figure 1

Description

本考案は、皮膚表面の創傷部を被覆して治療する際に使用する創傷被覆材に関する。   The present invention relates to a wound dressing used for covering and treating a wound on a skin surface.

従来より、創傷部の治療は、専ら創傷部を乾燥させるのが皮膚の早期再生に有効とされてきたが、最近の創傷治療では、創傷部からの滲出液に含まれる成分が創傷の治癒の促進に役立つことから、創傷部を適度な湿潤状態に保ちながら治療するのが最善とされている。   Conventionally, in the treatment of wounds, it has been effective to dry the wounds exclusively for the early regeneration of the skin. However, in recent wound treatments, the components contained in the exudate from the wounds are effective in healing the wounds. Because it helps to promote, it is best to treat the wound while keeping it in a moderately moist state.

ところが、創傷部は皮膚が薄く傷付きやすいため、過度な湿潤状態では滲出液の圧力によって創傷部の皮膚の再生・回復が悪くなったり、被覆材が創傷部に貼り付いて被覆材を剥がす際に創傷部を傷めてかえって治癒が大幅に遅れるといった問題がある。   However, since the skin of the wound is thin and easily damaged, the pressure of the exudate makes the skin regeneration / recovery worse when it is excessively wet, or when the dressing is stuck to the wound and the dressing is peeled off. However, there is a problem in that the wound is damaged and healing is greatly delayed.

かかる湿潤状態の調整可能な創傷被覆材として、創傷部側に位置する表面シートの孔の開口率を特定したり、2枚の表面シートのそれぞれの開口率を特定することで滲出液の透過量を調整した創傷被覆材(特許文献1及び2参照)や、特定の初期耐水圧の機能を有する層で創傷部位を覆うようにした創傷被覆材(特許文献3参照)が提案されている。   As a wound dressing that can be adjusted in a wet state, the permeation amount of exudate can be determined by specifying the aperture ratio of the holes in the topsheet located on the wound side or by specifying the respective aperture ratios of the two topsheets. A wound dressing (see Patent Documents 1 and 2) that adjusts the wound and a wound dressing (see Patent Document 3) that covers a wound site with a layer having a specific initial water pressure-resistant function have been proposed.

特開2008−113781号公報JP 2008-113781 A 特開2008−113952号公報JP 2008-113952 A WO2005−000372号公報WO2005-000372

しかしながら、特許文献1及び2に記載の創傷被覆材は、いずれも表面シートの開口率が小さいために、滲出液の多い創傷では滲出液が創傷部に溜まりすぎ、かえって治癒を遅らせることとなる。また、特許文献3の創傷被覆材では、初期耐水圧機能の1つに高い撥水性を有することを必須要件としているが、撥水性が高すぎると創傷部を覆う被覆材全体に滲出液が均一に馴染めず、滲出液が点在する形となって創傷部の湿潤状態が安定しないことから、この場合も治癒の遅れを余儀なくされる。   However, since the wound dressings described in Patent Documents 1 and 2 both have a small opening ratio of the topsheet, the exudate accumulates in the wound part too much in a wound with a large amount of exudate, and rather delays healing. Moreover, in the wound dressing of Patent Document 3, it is essential that one of the initial water pressure resistant functions has high water repellency. However, if the water repellency is too high, the exudate is uniformly distributed over the entire dressing covering the wound portion. In this case, the healing of the wound portion is inevitably delayed because the wet state of the wound portion is not stable because the exudate is scattered.

本考案は、滲出液の多少にかかわらず、創傷部を常に安定して適度な湿潤状態に保つことができ、かつ創傷部に引っ付きにくい、治癒の促進に有効な創傷被覆材の提供を目的とする。   An object of the present invention is to provide a wound dressing material that can keep a wound part stably and in a moderately moist state regardless of the amount of exudate, and that is difficult to stick to the wound part and is effective in promoting healing. To do.

本考案者は、上記目的を達成すべく、創傷部に当接するシートの種類やその表面特性等について鋭意検討した結果、特定の濡れ張力と開孔径及び開孔率を有するフィルムであって、かつ該フィルムの創傷部に当接する側の反対面に適度の保水性を有するシートを配することで、安定した湿潤状態が保て、しかも創傷部に引っ付くことなく容易に剥がせられることを突き止め、本考案を完成させるに至ったものである。   In order to achieve the above object, the present inventor has intensively studied the type of sheet abutting on the wound part and the surface characteristics thereof, and as a result, the film has a specific wetting tension, a hole diameter and a hole area ratio, and By placing a sheet having moderate water retention on the opposite side of the film that contacts the wound part, it was found that a stable moist state can be maintained and that the film can be easily peeled off without being caught on the wound part. This has led to the completion of the present invention.

即ち、本考案は、創傷部に当接する側から、透水性の表面シート、保水性シート、吸水性の中間シート、不透水性の裏面シートの順に積層された創傷被覆材において、該表面シートがJISK6768に規定する表面濡れ張力が38〜54mN/mであって、かつ孔径0.1〜3mm、開孔率10〜50%の有孔フィルムであることを特徴とする創傷被覆材である。   That is, the present invention provides a wound dressing in which a water-permeable surface sheet, a water-retaining sheet, a water-absorbent intermediate sheet, and a water-impermeable back sheet are laminated in this order from the side in contact with the wound part. A wound dressing characterized by being a perforated film having a surface wetting tension of 38 to 54 mN / m as defined in JISK6768, a pore diameter of 0.1 to 3 mm, and an aperture ratio of 10 to 50%.

本考案において、創傷部に当接する透水性の表面シートは、JISK6768(プラスチック・フィルム及びシート・ぬれ張力試験方法)に規定する表面濡れ張力が38〜54mN/m、好ましくは40〜50mN/mであって、かつ孔径0.1〜3mm、開孔率10〜50%の有孔フィルムである。   In the present invention, the water-permeable surface sheet that comes into contact with the wound part has a surface wetting tension of 38 to 54 mN / m, preferably 40 to 50 mN / m, as defined in JISK6768 (plastic film and sheet / wetting tension test method). And a perforated film having a pore diameter of 0.1 to 3 mm and an aperture ratio of 10 to 50%.

有孔フィルムの表面濡れ張力が38mN/m未満では、撥水性が高くなって滲出液が有孔フィルム全体に均一に馴染めず、滲出液が創傷部に部分的に点在する形となって早期の治癒が望めない。一方、表面濡れ張力が54mN/mを超えると、被覆材が創傷部に引っ付き易くなって、引き剥がす際に創傷部を傷めるという問題が生起する。   When the surface wetting tension of the perforated film is less than 38 mN / m, the water repellency becomes high, and the exudate cannot be uniformly applied to the entire perforated film, and the exudate is partially scattered in the wound part. I can not hope for healing. On the other hand, when the surface wetting tension exceeds 54 mN / m, the covering material is likely to be caught on the wound part, causing a problem of damaging the wound part when being peeled off.

また、有孔フィルムの表面濡れ張力は、その孔径や開孔率とも関連し、孔径と開孔率が本考案の範囲外では表面濡れ張力が38〜54mN/mであっても滲出液が溜まりすぎるかあるいは乾燥して均一な湿潤状態が保てない。かかる有孔フィルムとしては、ポリエチレン、ポリプロピレン、ポリエステル、ポリアミド、ポリウレタン等を主材とする厚さ1〜50μm程の上記表面濡れ張力を有するフィルムであればいかなるものでも差し支えないが、フィルムの強度や衛生性等を考慮すると厚さ3〜12μmのポリエステル系フィルムが好ましく、また突孔加工によって断面すり鉢状に穿孔されたメッシュフィルムでも使用可能である。ここで、ポリエステル系フィルムとしては、ポリエチレンテレフタレート、ポリエチレンテレイソフタレート、シクロヘキシレンジメチルテレフタレート等の結晶性又は非晶性ポリエステルフィルムが例示できる。   The surface wetting tension of the perforated film is also related to the hole diameter and the opening ratio. When the hole diameter and the opening ratio are outside the range of the present invention, exudate is accumulated even when the surface wetting tension is 38 to 54 mN / m. Or it is too dry to maintain a uniform wet state. As such a perforated film, any film may be used as long as it has the above surface wetting tension of about 1 to 50 μm in thickness, mainly composed of polyethylene, polypropylene, polyester, polyamide, polyurethane, etc. In view of hygiene and the like, a polyester film having a thickness of 3 to 12 μm is preferable, and a mesh film perforated into a mortar shape by projecting holes can also be used. Here, examples of the polyester film include crystalline or amorphous polyester films such as polyethylene terephthalate, polyethylene terephthalate, and cyclohexylene dimethyl terephthalate.

本考案の創傷被覆材は、上記表面シートの裏側に保水性シートを介して吸水性の中間シートを積層したものである。ここで保水性シートは、透水性の表面シートを通って出てくる滲出液を速やかに吸収保持し、余剰の滲出液を中間シートに吸収させる、所謂滲出液の溜まりを調整する働きを奏し、もって創傷部を常に適度な湿潤状態に保つ効果をもたらすものである。   The wound dressing of the present invention is obtained by laminating a water-absorbing intermediate sheet via a water-retaining sheet on the back side of the top sheet. Here, the water retention sheet plays a role of adjusting the so-called accumulation of exudate, which quickly absorbs and holds the exudate exiting through the water-permeable surface sheet, and absorbs the excess exudate into the intermediate sheet, Thus, the wound portion is always kept in an appropriate moist state.

かかる保水性シートとしては、コットン、綿、パルプ等の織布や不織布が使用可能であり、中でも衛生性に優れ、高い吸水性と保水性を有するコットン繊維製の不織布が好ましい。この保水性シートは、滲出液の溜り調整の観点から、目付量10〜50g/mのシートを保水量が300〜2000g/mになるよう適宜の枚数を積層して用いるもので、例えば目付量28g/mで保水量300g/mのコットン製不織布であれば1〜6枚積層して用いるとよい。尚、この保水性シートは、表面シートと中間シートの間に積層するのが一般的であるが、滲出液の多い創傷部には中間シートの裏側にも適宜積層するのが好ましい。 As such a water-retaining sheet, woven fabrics and non-woven fabrics such as cotton, cotton, and pulp can be used. Among these, non-woven fabrics made of cotton fibers having excellent hygiene and high water absorption and water retention properties are preferable. From the viewpoint of adjusting the amount of exudate, this water-retaining sheet is used by laminating an appropriate number of sheets with a basis weight of 10 to 50 g / m 2 so that the water retention amount is 300 to 2000 g / m 2. If it is a nonwoven fabric made of cotton having a basis weight of 28 g / m 2 and a water retention amount of 300 g / m 2 , 1 to 6 sheets may be laminated and used. In general, the water-retaining sheet is laminated between the top sheet and the intermediate sheet. However, it is preferable that the water-retaining sheet is appropriately laminated also on the back side of the intermediate sheet in a wound portion with a large amount of exudate.

本考案において、吸水性の中間シートとはパルプ繊維等の親水性繊維製の強化吸水紙の間に顆粒(粉末)状の吸水性ポリマーを挟持した医療用に用いられる吸水性シートであればいかなるものも使用でき、その吸水能は0.9%生理食塩水に対し自重の20倍以上、好ましくは30〜100倍、より好ましくは40〜80倍程度の吸水性シートを用いるのが好適である。ここで吸水性ポリマーとしては、架橋構造を有し、重合体の構成成分としてカルボキシル基及びカルボキシレート基を有する高吸水性のポリマーであればいかなるものでも使用できる。中でも、ポリアクリル酸塩架橋物、アクリル酸エステル−酢酸ビニル共重合体の加水分解物、アクリル酸塩−アクリルアミド共重合体架橋物及びポリアクリロニトリル架橋体物の加水分解物等が好適である。   In the present invention, the water-absorbing intermediate sheet is any water-absorbing sheet used for medical purposes in which a granular (powder) water-absorbing polymer is sandwiched between reinforced water-absorbing paper made of hydrophilic fibers such as pulp fibers. It is suitable to use a water-absorbent sheet having a water absorption capacity of 20 times or more, preferably 30 to 100 times, more preferably about 40 to 80 times its own weight with respect to 0.9% physiological saline. . As the water-absorbing polymer, any polymer can be used as long as it has a crosslinked structure and has a carboxyl group and a carboxylate group as a constituent component of the polymer. Among these, a cross-linked polyacrylate, a hydrolyzate of an acrylate-vinyl acetate copolymer, a cross-linked acrylate-acrylamide copolymer, a hydrolyzate of a polyacrylonitrile cross-linked product, and the like are preferable.

また、本考案の創傷被覆材において不透水性の裏面シートは、素材中を水が通過しないシートであればいかなるものでも差し支えないが、経済性や柔軟性の点でプラスチック製フィルム、特に厚さ5〜50μmのポリエチレンやポリプロピレン等のフィルムが好ましく、更に該フィルムに炭酸カルシウムや酸化チタン、タルク等を添加して着色かつ高透湿性となしたり、格子状の印刷を施して滲出液の拡散状態を目視で確認出来るようにすることができるほか、該フィルムの裏面に不織布等を貼合して補強したものでもよい。   In the wound dressing of the present invention, the water-impermeable back sheet may be any sheet that does not allow water to pass through the material. However, in terms of economy and flexibility, a plastic film, particularly a thickness. A film such as polyethylene or polypropylene having a thickness of 5 to 50 μm is preferable, and the film is colored and highly permeable by adding calcium carbonate, titanium oxide, talc, or the like, or a lattice-like print is applied to diffuse the exudate. Can be visually confirmed, and a non-woven fabric or the like may be bonded to the back surface of the film for reinforcement.

本考案の創傷被覆材は、上記の如く創傷部に当接する側から表面シート、保水性シート、中間シート、裏面シートの順に積層したもので、ここで言う「積層」とは単に双方が重ね合わさっている状態を主として意味するが、双方が縫製、貼着、接着等の方法で部分的に接合されていてもよい。また、本考案の創傷被覆材は、滲出液の漏れを防ぐために、表面シートと裏面シートの寸法を保水性シートや中間シートより少し大きくして、双方の周縁部のみを熱融着等の方法で接着したものが好ましい。   The wound dressing of the present invention is a laminate of a surface sheet, a water retaining sheet, an intermediate sheet, and a back sheet in this order from the side that comes into contact with the wound as described above. However, both may be partially joined by methods such as sewing, sticking, and adhesion. Further, the wound dressing of the present invention is a method in which the dimensions of the top sheet and the back sheet are made slightly larger than the water-retaining sheet and the intermediate sheet, and only the peripheral part of both is heat-sealed in order to prevent leakage of exudate Those bonded with are preferred.

本考案の創傷被覆材によれば、創傷部に当接する側に有孔フィルムを配し、かつ該有孔フィルムの表面濡れ張力と孔径及び開孔率を特定することで、滲出液の多少にかかわらず創傷部の湿潤状態を常に適度に安定して保つことができるほか、創傷被覆材の交換時には創傷部に引っ付くことなく容易に剥がすことができるため、創傷部を傷めることなく治療期間の短縮化が図れるという特段の効果を奏するものである。   According to the wound dressing material of the present invention, a perforated film is arranged on the side in contact with the wound part, and the surface wetting tension, the hole diameter, and the open area ratio of the perforated film are specified, so that the amount of exudate can be reduced. Regardless of whether or not the wound can be kept moist and stable at all times, it can be easily removed without being caught by the wound when changing the wound dressing. There is a special effect that shortening can be achieved.

は、本考案の創傷被覆材の一例を示す断面概略図である。These are the cross-sectional schematics which show an example of the wound-dressing material of this invention.

本考案を実施するための形態は次の通りであるが、これらは本考案を実施するための形態の一例に過ぎず、本考案はこれらの実施形態に限定されるものでない。   Although the form for implementing this invention is as follows, these are only examples of the form for implementing this invention, and this invention is not limited to these embodiment.

(実施の形態)
図1は、本考案に係る創傷被覆材の一例であり、該創傷被覆材1は、創傷部に当接する側から透水性の表面シート2、保水性シート3(符号31、32、33)、吸水性の中間シート4、不透水性の裏面シート5の順に積層し、表面シートと裏面シートを周縁部で接着したものである。
(Embodiment)
FIG. 1 is an example of a wound dressing according to the present invention. The wound dressing 1 includes a water-permeable surface sheet 2 and a water-retaining sheet 3 (reference numerals 31, 32, 33) from the side in contact with the wound part. A water-absorbing intermediate sheet 4 and a water-impermeable back sheet 5 are laminated in this order, and the top sheet and the back sheet are bonded together at the periphery.

この場合、表面シート2としては厚さ6μmで、JISK6768に規定する表面濡れ張力が46mN/mであって、孔径0.6mm、開孔率20%に穿孔された有孔のポリエチレンテレフタレートフィルムを用い、保水性シート3としては目付量28g/m、保水量350g/mのコットン繊維製不織布(旭化成せんい(株)製「ベンリーゼ」)を3枚積層して使用した。また中間シート4としては0.9%生理食塩水に対し、自重の60倍の吸水能を持つ目付量30g/mの吸水性シート(ベストプロダクツ(株)製「ポリマーシート0030」)を用い、更に裏面シート5としては厚さ30μmの白色ポリエチレンフィルムに目付量20g/mのポリプロピレン製不織布を貼合したシートを用いた。 In this case, a porous polyethylene terephthalate film having a thickness of 6 μm, a surface wetting tension specified by JISK6768 of 46 mN / m, a hole diameter of 0.6 mm, and a hole area ratio of 20% is used as the surface sheet 2. As the water retaining sheet 3, three non-woven fabrics made of cotton fibers having a weight per unit area of 28 g / m 2 and a water retaining amount of 350 g / m 2 (“Benize” manufactured by Asahi Kasei Corporation) were laminated and used. In addition, as the intermediate sheet 4, a water-absorbing sheet having a weight per unit weight of 30 g / m 2 (“polymer sheet 0030” manufactured by Best Products Co., Ltd.) having a water absorption capacity 60 times its own weight with respect to 0.9% physiological saline is used. Further, as the back sheet 5, a sheet obtained by bonding a polypropylene nonwoven fabric having a weight per unit area of 20 g / m 2 to a white polyethylene film having a thickness of 30 μm was used.

尚、本考案において、保水性シートの保水量とは、縦横10cmの大きさにカットした保水性シートを水中に30秒間浸漬した後取り出し、クリップでその一端を把持してぶら下げた状態で1分間放置した後の重量を測定する。保水量は、この時の重量と、浸漬前の重量との差から求めた。即ち、〔保水量(g/m)=(水中浸漬後、1分間放置した時のシートの重量−浸漬前のシートの重量)×100〕となる。 In the present invention, the water retention amount of the water retention sheet is 1 minute in a state where the water retention sheet cut into a size of 10 cm in length and breadth is immersed in water for 30 seconds, taken out and held at one end with a clip and hung. Measure the weight after standing. The water retention amount was determined from the difference between the weight at this time and the weight before immersion. That is, [water retention amount (g / m 2 ) = (weight of sheet when left for 1 minute after immersion in water−weight of sheet before immersion) × 100].

かかる実施形態の創傷被覆材を創傷部に当接して、滲出液の湿潤状態と引き剥がし性を調べたところ、創傷被覆材全体に適量の滲出液がほぼ均一に付着していることが確認された。また、該被覆材を引き剥がす際にも、創傷部に引っ付くことなく容易に剥ぐことができるなど、創傷の治療に優れた効果を発揮することが分かった。   When the wound dressing of this embodiment was brought into contact with the wound part and the wet state and exfoliation property of the exudate were examined, it was confirmed that an appropriate amount of exudate was almost uniformly attached to the entire wound dressing. It was. Moreover, when peeling off this coating | covering material, it turned out that it can peel easily, without attracting | sucking to a wound part, and it turned out that the effect excellent in the treatment of a wound is exhibited.

本考案の創傷被覆材は、火傷や切り傷、擦り傷、更に手術後の切開創等の創傷の被覆・保護や治療用として創傷部に直接貼り付けて使用される。   The wound dressing of the present invention is used by directly attaching to a wound part for the purpose of covering / protecting or treating wounds such as burns, cuts, abrasions, and incisions after surgery.

1・・・創傷被覆材
2・・・透水性の表面シート
3、31、32、33・・・保水性シート
4・・・吸水性の中間シート
5・・・非透水性の裏面シート



































DESCRIPTION OF SYMBOLS 1 ... Wound dressing material 2 ... Water-permeable surface sheet 3, 31, 32, 33 ... Water retention sheet 4 ... Water-absorbing intermediate sheet 5 ... Water-impermeable back sheet



































Claims (1)

創傷部に当接する側から、透水性の表面シート、保水性シート、吸水性の中間シート、不透水性の裏面シートの順に積層された創傷被覆材において、該表面シートがJISK6768に規定する表面濡れ張力が38〜54mN/mであって、かつ孔径0.1〜3mm、開孔率10〜50%の有孔フィルムであることを特徴とする創傷被覆材。











































In the wound dressing laminated in the order of a water-permeable surface sheet, a water-retaining sheet, a water-absorbent intermediate sheet, and a water-impermeable back sheet from the side in contact with the wound part, the surface wettability specified by JISK6768 for the surface sheet A wound dressing characterized by being a perforated film having a tension of 38 to 54 mN / m, a pore diameter of 0.1 to 3 mm, and an aperture ratio of 10 to 50%.











































JP2010001637U 2010-03-15 2010-03-15 Wound dressing Expired - Lifetime JP3159787U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016141709A (en) * 2015-01-30 2016-08-08 株式会社Smpテクノロジーズ Film, and composite fabric
JP2020503107A (en) * 2016-12-23 2020-01-30 カルゴン カーボン コーポレーション Activated carbon composite wound dressing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016141709A (en) * 2015-01-30 2016-08-08 株式会社Smpテクノロジーズ Film, and composite fabric
JP2020503107A (en) * 2016-12-23 2020-01-30 カルゴン カーボン コーポレーション Activated carbon composite wound dressing

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