JP5827409B2 - 空気透過層を有する創傷被覆材 - Google Patents
空気透過層を有する創傷被覆材 Download PDFInfo
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- JP5827409B2 JP5827409B2 JP2014527529A JP2014527529A JP5827409B2 JP 5827409 B2 JP5827409 B2 JP 5827409B2 JP 2014527529 A JP2014527529 A JP 2014527529A JP 2014527529 A JP2014527529 A JP 2014527529A JP 5827409 B2 JP5827409 B2 JP 5827409B2
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- activated carbon
- wound dressing
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Description
本発明に係る創傷被覆材と本発明ではない創傷被覆材を比較するために、本発明に係る創傷被覆材のいろいろな例と比較用創傷被覆材が準備された。
・ 創傷被覆材A及びA’は、それぞれ2つのポリアミド系布状材料の間に配置されたコラーゲン層及び活性炭層を有したこと、
・ 同様に、創傷被覆材B及びB’は、それぞれ2つのポリアミド系布状支持材料の間に配置されたコラーゲン層及び活性炭層を有し、さらにコラーゲン層と活性炭層の両方は、オクテニジンで処置されたこと、且つ、
・ 同様に、創傷被覆材Cは、それぞれ2つのポリアミド系布状支持材料の間に配置されたコラーゲン層及び活性炭層を有し、さらにコラーゲン層と活性炭層の両方は、ポリヘキサニドで処置されたこと。
・ 創傷被覆材Dは、標準の活性炭不織布に基づいたものであったこと;
・ 創傷被覆材Eは、ポリヘキサニド含浸ポリウレタン発泡体に基づいたものであったこと;且つ、
・ 創傷被覆材Fは、コラーゲン発泡体のみに基づいたものであったこと。
特に慢性創傷での極端な課題である病院細菌に対するいろいろな創傷被覆材の有効性をテストするために、創傷被覆材の抗菌性能が、抑制地帯テストに関して研究された。
本発明による創傷被覆材と、本発明によらない創傷被覆材の有効性を比較するために、慢性若しくは壊死性の創傷を煩う70歳〜85歳のテスト被験者が、4週間にわたっていずれかで処置された。このために、それぞれの創傷被覆材は、身体の患部に貼り付けられた。処置期間の第1週において、創傷被覆材は、朝と夕とに交換された。2週間を超えて、創傷被覆材の交換は、関連した創傷の状態に基づいて効果をもたらした。さらに、創傷治癒が進むについて被覆材の交換期間を長くし、すべての場合で、被覆材の交換は、いくら遅くとも2日後に実施された。
全体的に、本発明に係る創傷被覆材が、静菌性及び殺菌性処置若しくは特性を介して及び/若しくは活性炭とコラーゲンの組合せを介して、本発明でない創傷被覆材といろいろと比較されて改善されたことが実験例から明らかである。これによって、治療的創傷ケアのための本発明に係る創傷被覆材の使用によって、創傷治癒過程が十分に促進される。さらに、特に病院細菌に対する優れた汚染防護であって、創傷領域における構成物質及びその発生に対して抵抗するものが、治療における例外的な要求を突きつけるものである。さらに本発明に係る創傷被覆材は、良好な臭気吸着特性を有し、上述したものすべては患者の健康のためになるものである。
Claims (14)
- 治療的創傷ケアのための創傷被覆材において、
前記創傷被覆材が、多孔性若しくは発泡系構造を有する少なくとも1つの空気透過層と、活性炭の形の少なくとも1つの吸着剤とを具備すること、
前記創傷被覆材が、多層構造を有すること、該多層構造が、多孔性若しくは発泡系構造を有する少なくとも1つの空気透過層と、活性炭を具備する少なくとも1つの層を具備すること、
前記空気透過層が、前記創傷被覆材の外部層を形成すること、且つ、前記創傷被覆材の使用状態において、前記空気透過層が、処置されるべき創傷に対面する創傷被覆材の側面に配置されること、
前記空気透過層が、親水コロイド不織布及び親水コロイド発泡体の少なくとも1つによって形成すること、且つ、
前記空気透過層が、5〜50kPaの範囲内の圧縮硬さを有することを特徴とする創傷被覆材。 - 前記空気透過層が可逆的に変形可能及び圧縮可能に形成されることを特徴とする請求項1記載の創傷被覆材。
- 前記空気透過層が、20℃の温度で且つ1.01325barの圧力で、固体凝集体状態において存在する発泡体によって形成され、且つ、開放細孔構造を有することを特徴とする請求項1記載の創傷被覆材。
- 前記空気透過層が、
・5〜200kg/m3の範囲内の嵩密度を有すること;
・1〜750MPaの範囲内の圧縮率を有すること;
・127Paの流量抵抗で、少なくとも10L・m−2・sec−1及び20,000L・m−2・sec−1までの通気度を有すること;
の少なくとも1つの特徴を有することを特徴とする請求項1〜3のいずれか1つに記載の創傷被覆材。 - 前記創傷被覆材全体が、127Paの流量抵抗で、少なくとも25L・m−2・sec−1及び10,000L・m−2・sec−1までの通気度を有する空気透過性に形成されること、且つ、
前記空気透過層が、0.01〜100mmの範囲内の厚さを有し、創傷被覆材の合計厚さの、5%〜95%に形成されることを特徴とする請求項1〜4のいずれか1つに記載の創傷被覆材。 - 前記創傷被覆材が、活性炭を含有する少なくとも1つの層の形の活性炭を含有すること、且つ、
前記空気透過層が、親水コロイド不織布若しくは親水コロイド発泡体を具備することを特徴とする請求項1〜5のいずれか1つに記載の創傷被覆材。 - 前記活性炭が、粒状若しくは球状活性炭、又は、活性炭繊維を具備することを特徴とする請求項1〜6のいずれか1つに記載の創傷被覆材。
- 前記活性炭が、0.01〜3mmの範囲内の絶対粒子サイズを有し、且つ、ASTM D2862−97/04による標準測定によって測定された、0.05〜2.5mmの範囲内の平均粒子サイズを有する粒状若しくは球状の活性炭を具備することを特徴とする請求項1〜7のいずれか1つに記載の創傷被覆材。
- 前記活性炭が、
・活性炭の合計細孔容量に基づいて、60%〜95%の範囲内の2nm以下の細孔直径を有するミクロ細孔から形成されたミクロ細孔容量含有量を有すること;
・0.40cm3/g〜2cm3/gの範囲内の2nm以下の細孔直径を有するミクロ細孔から形成されたミクロ細孔容量を有すること;
・活性炭の特定の合計BET表面積に基づいて、少なくとも50%の2nm以下の細孔直径を有する細孔からなる所定のミクロ細孔表面積を有すること;
・500〜3,000m2/gの範囲内の内部表面積(BET)を有すること;
・0.1〜4cm3/gの範囲内の総細孔量を有すること;
・10N〜50Nの範囲内の活性炭粒子毎重量負荷能力として測定された破裂強度を有すること;
・少なくとも2.3のフラクタル次元の開放気孔率を有すること;
の少なくとも1つの特徴を具備することを特徴とする請求項1〜8のいずれか1つに記載の創傷被覆材。 - 前記活性炭が、殺菌性、静菌性若しくは抗菌性効果を有すること、前記活性炭の殺菌性、静菌性若しくは抗菌性効果が、活性炭の製造工程を介して、又は、少なくとも1つの殺菌性、静菌性若しくは抗菌性活性物質による活性炭の処置を介して達成されることを特徴とする請求項1〜9のいずれか1つに記載の創傷被覆材。
- 前記活性炭が、1〜1,000g/m2の量において存在すること、且つ、
前記活性炭が、平面若しくは三次元の布状支持体に配置されること、又は、第1の布状材料と第2の布状材料の間に配置されることを特徴とする請求項1〜10のいずれか1つに記載の創傷被覆材。 - 前記活性炭が、自己支持層として存在すること、又は、前記活性炭が空気透過層に組み込まれるか、空気透過層上に配置されること、且つ、
前記創傷被覆材のそれぞれの層が、それぞれがお互いに結合されるか、複合材料を形成することを特徴とする請求項1〜11のいずれか1つに記載の創傷被覆材。 - 前記創傷被覆材は、さらに、抗菌作用活性物質、殺菌活性物質、炎症抑制活性物質、止血活性物質及び創傷治癒促進活性物質からなる群から選択される少なくとも1つの活性物質を含有することを特徴とする請求項1〜12のいずれか1つの記載の創傷被覆材。
- 前記活性物質が、殺菌性、静菌性、殺バクテリア性、静バクテリア性、殺真菌性、静真菌性、殺ウィルス性、静ウィルス性、若しくは防腐性効果を有すること、
前記活性物質が、0.00001〜5g/cm 2 の量で、前記創傷被覆材に存在すること、
前記活性物質は、ポリヘキサメチレンビグアニド、ポリヘキサニド、タウロリジン、塩化ベンザルコニウム、クロルヘキシジン、オクテニジン及び生理学的相溶性の塩並びにそれらの誘導体並びにそれらの混合物からなる群;アルギン酸、キトサン、ヒアルロン酸及びそれらの塩、アラントイン、ベータ−シトステロール、ブロメライン、デクスパンテノール、パントテン酸、尿素、フラボノイド、リボフラビン、サポイン、シネオール、トコフェロール、及びそれらの混合物の群から選択されることを特徴とする請求項13記載の創傷被覆材。
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2011
- 2011-12-08 DE DE102011120492A patent/DE102011120492A1/de not_active Withdrawn
- 2011-12-08 DE DE202011108806U patent/DE202011108806U1/de not_active Expired - Lifetime
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2012
- 2012-08-31 WO PCT/EP2012/003661 patent/WO2013029798A1/de active Application Filing
- 2012-08-31 ES ES12756105.8T patent/ES2554259T3/es active Active
- 2012-08-31 CA CA2846684A patent/CA2846684C/en active Active
- 2012-08-31 CN CN201280053752.3A patent/CN103917253B/zh not_active Expired - Fee Related
- 2012-08-31 JP JP2014527529A patent/JP5827409B2/ja not_active Expired - Fee Related
- 2012-08-31 US US14/342,466 patent/US10426670B2/en not_active Expired - Fee Related
- 2012-08-31 EP EP12756105.8A patent/EP2734244B1/de active Active
- 2012-08-31 PL PL12756105T patent/PL2734244T3/pl unknown
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Also Published As
Publication number | Publication date |
---|---|
PL2734244T3 (pl) | 2016-04-29 |
CA2846684A1 (en) | 2013-03-07 |
CN103917253B (zh) | 2016-10-26 |
IL231190A (en) | 2017-01-31 |
DE102011120492A1 (de) | 2013-03-07 |
CA2846684C (en) | 2016-05-03 |
DE202011108806U1 (de) | 2012-09-03 |
IL231190A0 (en) | 2014-04-30 |
US10426670B2 (en) | 2019-10-01 |
EP2734244A1 (de) | 2014-05-28 |
WO2013029798A1 (de) | 2013-03-07 |
ES2554259T3 (es) | 2015-12-17 |
EP2734244B1 (de) | 2015-10-07 |
CN103917253A (zh) | 2014-07-09 |
US20150094672A1 (en) | 2015-04-02 |
JP2014525297A (ja) | 2014-09-29 |
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