JP7038701B2 - 減圧療法を適用するためのシステム - Google Patents
減圧療法を適用するためのシステム Download PDFInfo
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/05—Bandages or dressings; Absorbent pads specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
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Description
大きすぎて自然には閉じられない、もしくはそうでなければ、治癒しない創傷の部位への陰圧の印加による開放創または慢性創傷の治療は、当該技術分野で周知である。現在当該技術分野で公知の陰圧創傷治療システムは、一般に、創傷の上に液体に対して不透過性のカバーを設置することと、創傷を囲む患者の組織に対してカバーを封止する様々な機構を使用することと、陰圧の領域を創傷の領域におけるカバーの真下に作り出すことによって、陰圧供給源(真空ポンプなど)をカバーに接続することとを伴う。
典型的には、開放腹部に適用される陰圧創傷治療(NPWT)では、疎水性発泡体および/または疎水性器官保護層が下位層として使用される。市販の器官保護層は、RENASYS(登録商標)ブランド下のSmith&Nephew,Inc.およびKinetic Concepts Inc.の両方で販売されている。しかし、当業者により理解されるように、器官保護層(典型的には、フィルム)は、例えば、ポリテトラフルオロエチレン、ポリウレタン(エラストラン(登録商標)を含む)、ポリエチレン、ポリテトラフルオロエチレン、またはその混合物などのこのセクションまたは本明細書のその他の部分で開示されるいくつかの材料で構成されてもよい。疎水性材料は、陰圧の良好な分配とともに腹部からの液体のための流体経路を提供することを可能にする。
[付記項1]
陰圧を使用する創傷部位の治療のためのシステムであって、
前記創傷部位への陰圧の伝達に適した多孔性パッドと、
前記多孔性パッドの下に位置付けられる排水層であって、前記創傷部位から流体を運ぶように構成される、排水層と、
前記多孔性パッドの上に配置されるように構成される、可撓性のドレープと、
陰圧供給源と、
前記供給源から前記可撓性のドレープに陰圧を伝達するように構成される、導管と、を備え、
前記排水層が親水性発泡体を含む、システム。
[付記項2]
前記親水性発泡体が、ポリビニルアルコール(PVA)を含む、付記項1に記載のシステム。
[付記項3]
前記排水層が、前記親水性発泡体の上に上部フィルム層を含む、付記項1または2に記載のシステム。
[付記項4]
前記排水層が、前記親水性発泡体の下に下部フィルム層を含む、付記項1~3のいずれか一項に記載のシステム。
[付記項5]
前記フィルム層または複数のフィルム層が、ポリウレタン、ポリエチレン、ポリテトラフルオロエチレン、またはその混合物を含む群から選択される材料を含む、付記項2~4のいずれか一項に記載のシステム。
[付記項6]
フィルム層または複数のフィルム層が、前記排水層の側壁の少なくとも一部分を覆う、付記項2~5のいずれか一項に記載のシステム。
[付記項7]
前記親水性発泡体が、上部フィルム層と下部フィルム層との間に挟まれ、前記上部フィルム層および前記下部フィルム層が、それらの端で少なくとも部分的に共に溶接される、付記項1~6のいずれか一項に記載のシステム。
[付記項8]
前記上部フィルム層および前記下部フィルム層がスポット溶接され、それによって流体チャネルが生成される、付記項7に記載のシステム。
[付記項9]
フィルム層が、前記親水性発泡体の下部面および/または上部面の表面積の100%未満を覆う、付記項1~8のいずれか一項に記載のシステム。
[付記項10]
フィルム層が、前記親水性発泡体の前記下部面および/または前記上部面の前記表面積の70%未満を覆う、付記項1~9のいずれか一項に記載のシステム。
[付記項11]
フィルム層が、前記親水性発泡体の前記下部面および/または前記上部面の前記表面積の30%未満を覆う、付記項1~10のいずれか一項に記載のシステム。
[付記項12]
前記親水性発泡体の層の露出した部分が、星印形状、螺旋形状、クロスハッチ形状、ヒトデ形状および葉形状から成る群より選択される形状である、付記項9~11のいずれか一項に記載のシステム。
[付記項13]
前記排水層は、その幅および長さよりも短い厚さを備え、前記排水層の前記厚さの少なくとも一部分を通じて延在する少なくとも一つの切れ目をさらに備え、それは、前記排水
層から着脱可能な一セクションを画定して、寸法的に独立した様式で前記排水層のサイズを調整することを可能にし、ここにおいて、前記排水層の前記長さおよび前記幅が、相互に独立して変更されうる、付記項1~12のいずれか一項に記載のシステム。
[付記項14]
器官保護層をさらに含む、付記項1~13のいずれか一項に記載のシステム。
[付記項15]
前記ドレープおよび前記導管内に形成された開口部に取り付け可能なポートをさらに備える、付記項1~14のいずれか一項に記載のシステム。
[付記項16]
陰圧を使用して創傷部位を治療する方法であって、前記治療が、
親水性排水層を前記創傷部位上に配置することと、
多孔性パッドを前記親水性排水層上に配置することと、
前記創傷の上に位置付けられ、前記創傷を囲む皮膚に密封される可撓性のドレープで前記創傷部位を密封することと、
陰圧供給源から前記創傷部位に陰圧を印加することであって、前記陰圧供給源が、前記ドレープと前記陰圧供給源との間に流体接続された導管を通じて印加される、印加することと、を含む、方法。
[付記項17]
前記親水性排水層が、ポリビニルアルコール(PVA)発泡体を含む、付記項16に記載の方法。
[付記項18]
前記治療が、器官保護層を前記創傷部位上に配置することをさらに含む、付記項16または17に記載の方法。
[付記項19]
前記親水性排水層が、親水性発泡体に予め取り付けられた器官保護層を含む、付記項16~18のいずれか一項に記載の方法。
[付記項20]
前記親水性排水層の側壁が、前記創傷部位上に接触する、付記項16~19のいずれか一項に記載の方法。
[付記項21]
実質的に示されおよび/または説明されたような装置。
[付記項22]
実質的に示されおよび/または説明されたような方法。
[付記項23]
実質的に示されおよび/または説明されたようなシステム。
Claims (13)
- 陰圧を使用する創傷部位の治療のためのシステムであって、
前記創傷部位への陰圧の伝達に適した多孔性パッドと、
前記多孔性パッドの下に位置付けられる排水層であって、前記創傷部位から流体を運ぶように構成される、排水層と、
前記多孔性パッドの上に配置されるように構成される、可撓性のドレープと、
陰圧供給源と、
前記陰圧供給源から前記可撓性のドレープに陰圧を伝達するように構成される、導管と、を備え、
前記排水層が親水性発泡体を含み、
前記親水性発泡体が、上部フィルム層と下部フィルム層との間に挟まれ、前記上部フィルム層および前記下部フィルム層が、それらの端で少なくとも部分的に共に溶接され、
前記上部フィルム層および前記下部フィルム層がスポット溶接され、それによって流体チャネルが生成されてなる、システム。 - 前記親水性発泡体が、ポリビニルアルコール(PVA)を含む、請求項1に記載のシステム。
- 前記排水層が、前記親水性発泡体の上に上部フィルム層を含む、請求項1または2に記載のシステム。
- 前記排水層が、前記親水性発泡体の下に下部フィルム層を含む、請求項1~3のいずれか一項に記載のシステム。
- 前記上部フィルム層および前記下部フィルム層の少なくとも一方が、ポリウレタン、ポリエチレン、ポリテトラフルオロエチレン、またはその混合物を含む群から選択される材料を含む、請求項2~4のいずれか一項に記載のシステム。
- 1以上のフィルム層が、前記排水層の側壁の少なくとも一部分を覆う、請求項2~5のいずれか一項に記載のシステム。
- フィルム層が、前記親水性発泡体の下部面および/または上部面の表面積の100%未満を覆う、請求項1~6のいずれか一項に記載のシステム。
- フィルム層が、前記親水性発泡体の下部面および/または上部面の表面積の70%未満を覆う、請求項1~7のいずれか一項に記載のシステム。
- フィルム層が、前記親水性発泡体の下部面および/または上部面の表面積の30%未満を覆う、請求項1~8のいずれか一項に記載のシステム。
- 前記親水性発泡体の層の露出した部分が、星印形状、螺旋形状、クロスハッチ形状、ヒトデ形状および葉形状から成る群より選択される形状である、請求項7~9のいずれか一項に記載のシステム。
- 前記排水層は、その幅および長さよりも短い厚さを備え、
前記排水層が、当該排水層の前記厚さの少なくとも一部分を通じて延在する少なくとも一つの切れ目をさらに備え、前記排水層から着脱可能な一セクションを画定して、寸法的に独立した様式で前記排水層のサイズを調整することを可能にし、
前記排水層の前記長さおよび前記幅が、相互に独立して変更可能である、請求項1~10のいずれか一項に記載のシステム。 - 器官保護層をさらに含む、請求項1~11のいずれか一項に記載のシステム。
- 前記ドレープおよび前記導管内に形成された開口部に取り付け可能なポートをさらに備える、請求項1~12のいずれか一項に記載のシステム。
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EP3506865A1 (en) | 2019-07-10 |
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US20210038780A1 (en) | 2021-02-11 |
CN109640903A (zh) | 2019-04-16 |
US11135351B2 (en) | 2021-10-05 |
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US20220088285A1 (en) | 2022-03-24 |
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