JPWO2021130475A5 - - Google Patents

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JPWO2021130475A5
JPWO2021130475A5 JP2022539334A JP2022539334A JPWO2021130475A5 JP WO2021130475 A5 JPWO2021130475 A5 JP WO2021130475A5 JP 2022539334 A JP2022539334 A JP 2022539334A JP 2022539334 A JP2022539334 A JP 2022539334A JP WO2021130475 A5 JPWO2021130475 A5 JP WO2021130475A5
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layer
absorbent
material according
contacting
peripheral
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JP2023509605A (en
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Priority claimed from US16/728,290 external-priority patent/US11331221B2/en
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一体の陰圧創傷被覆材であって、
創傷に接触するための第１の表面と、前記第１の表面の反対側の第２の表面とを有する吸収層であって、ゲル化吸収材料を含み、周囲境界を有する吸収層と、
前記吸収層に面する第１の表面と、前記第１の表面の反対側の第２の表面とを有するカバー層であって、前記カバー層の周囲境界が前記吸収層の前記周囲境界を越えて延びるように、前記吸収層の周囲寸法よりも大きい寸法を有する周囲境界を有する、カバー層と、
前記吸収層の前記周囲境界に隣接する前記吸収層の前記第１の表面に取り付けられた周囲接着性皮膚接触層であって、前記吸収層がこれを通して前記創傷に接触することができる窓を画定し、親水コロイド接着剤を含む、周囲接着性皮膚接触層と、を含み、
前記周囲接着性皮膚接触層は、前記周囲接着性皮膚接触層の周囲境界が前記吸収層の前記周囲境界を越えて延びるように、前記吸収層の前記周囲寸法よりも大きい寸法を有する周囲境界を有し、
前記カバー層の前記周囲境界及び前記周囲接着性皮膚接触層の前記周囲境界はシールを形成するために互いに接合され、
前記周囲接着性皮膚接触層は、創傷を取り囲む皮膚に接着するように作用可能であり、
前記カバー層は、陰圧源に接続するように構成された開口部を画定する、
一体の陰圧創傷被覆材。 A unitary negative pressure wound dressing comprising :
an absorbent layer having a first surface for contacting a wound and a second surface opposite the first surface, the absorbent layer comprising a gelling absorbent material and having a peripheral boundary;
a cover layer having a first surface facing the absorbent layer and a second surface opposite the first surface, wherein a peripheral boundary of the cover layer extends beyond the peripheral boundary of the absorbent layer; a cover layer having a circumferential boundary having a dimension greater than a circumferential dimension of the absorbent layer so as to extend along the circumference of the absorbent layer;
a peripheral adhesive skin contact layer attached to the first surface of the absorbent layer adjacent the peripheral border of the absorbent layer, the peripheral adhesive skin contact layer defining a window through which the absorbent layer can contact the wound; and a surrounding adhesive skin-contacting layer comprising a hydrocolloid adhesive;
The peripheral adhesive skin-contacting layer has a peripheral border having a dimension larger than the peripheral dimension of the absorbent layer, such that the peripheral border of the peripheral adhesive skin-contacting layer extends beyond the peripheral border of the absorbent layer. have,
the peripheral border of the cover layer and the peripheral border of the peripheral adhesive skin-contacting layer are joined together to form a seal;
the peripheral adhesive skin-contacting layer is operable to adhere to the skin surrounding the wound;
the cover layer defines an opening configured to connect to a source of negative pressure;
Integrated negative pressure wound dressing. 前記吸収層の前記周囲境界の寸法は、前記被覆材によって覆われる創傷の寸法よりも大きい、
請求項１に記載の被覆材。 the dimensions of the peripheral boundary of the absorbent layer are greater than the dimensions of the wound covered by the dressing;
The coating material according to claim 1. 前記カバー層は水不透過性であり、空気及び蒸気透過性である、
請求項１に記載の被覆材。 the cover layer is water impermeable and air and vapor permeable;
The coating material according to claim 1. 前記周囲接着性皮膚接触層及び前記カバー層は、前記被覆材が創傷上に適用され、陰圧源が前記開口部に密封的に接続されたときに、前記吸収層と前記被覆材の外部環境との間に気密シールを形成するように作用可能である、
請求項１に記載の被覆材。 The surrounding adhesive skin-contacting layer and the cover layer absorb the external environment of the absorbent layer and the dressing when the dressing is applied over a wound and a source of negative pressure is sealingly connected to the opening. operable to form an airtight seal between the
The coating material according to claim 1. 前記周囲接着性皮膚接触層は、約０．１ｍｍ～約５ｍｍの厚さを有する、
請求項１に記載の被覆材。 the peripheral adhesive skin-contacting layer has a thickness of about 0.1 mm to about 5 mm;
The coating material according to claim 1. 前記周囲接着性皮膚接触層は、約２ｃｍ～約６ｃｍの幅を有する、
請求項１に記載の被覆材。 the peripheral adhesive skin-contacting layer has a width of about 2 cm to about 6 cm;
The coating material according to claim 1. 前記吸収層と前記カバー層との間に配置された第１の接合層をさらに含む、
請求項１に記載の被覆材。 further comprising a first bonding layer disposed between the absorbent layer and the cover layer;
The coating material according to claim 1. 前記第１の接合層は、親水コロイド接着剤の層を含む、
請求項７に記載の被覆材。 the first bonding layer includes a layer of hydrocolloid adhesive;
The covering material according to claim 7. 前記第１の接合層は、約０．２ｍｍ～約２ｍｍの厚さを有する、
請求項７に記載の被覆材。 The first bonding layer has a thickness of about 0.2 mm to about 2 mm.
The covering material according to claim 7. 前記周囲接着性皮膚接触層に対応し、前記周囲接着性皮膚接触層に接合された第１の表面を有する構造層と、
前記周囲接着性皮膚接触層に対応し、前記構造層の前記第１の表面の反対側の前記構造層の第２の表面と接触して配置された第２の接合層と、をさらに含み、
前記構造層は、前記周囲接着性皮膚接触層と前記第２の接合層との間に配置され、前記周囲接着性皮膚接触層と前記第２の接合層とに密封接合され、
前記第２の接合層は、前記吸収層の全周囲境界に隣接する前記吸収層の前記第１の表面の連続部分に密封接合される、
請求項１に記載の被覆材。 a structural layer corresponding to the surrounding adhesive skin-contacting layer and having a first surface joined to the surrounding adhesive skin-contacting layer;
a second bonding layer corresponding to the surrounding adhesive skin-contacting layer and disposed in contact with a second surface of the structural layer opposite the first surface of the structural layer;
the structural layer is disposed between the surrounding adhesive skin-contacting layer and the second bonding layer and is hermetically bonded to the surrounding adhesive skin-contacting layer and the second bonding layer;
the second bonding layer is hermetically bonded to a continuous portion of the first surface of the absorbent layer adjacent a circumferential boundary of the absorbent layer;
The coating material according to claim 1. 前記周囲接着性皮膚接触層、前記第２の接合層及び前記カバー層は、前記被覆材が創傷上に適用され、陰圧源が前記開口部に密封的に接続されたときに、前記吸収層と前記被覆材の外部環境との間に気密シールを形成するように作用可能である、
請求項１０に記載の被覆材。 The surrounding adhesive skin-contacting layer, the second bonding layer and the cover layer are combined with the absorbent layer when the dressing is applied over the wound and a source of negative pressure is sealingly connected to the opening. and the dressing's external environment;
The covering material according to claim 10. 前記構造層はポリウレタンフィルムを含む、
請求項１０に記載の被覆材。 the structural layer comprises a polyurethane film;
The covering material according to claim 10. 前記第２の接合層は、約０．２ｍｍ～約２ｍｍの厚さを有する、
請求項１０に記載の被覆材。 The second bonding layer has a thickness of about 0.2 mm to about 2 mm.
The covering material according to claim 10. 前記吸収層と前記カバー層との間に位置する第１の接合層と、
前記周囲接着性皮膚接触層に対応し、前記周囲接着性皮膚接触層に接合された第１の表面を有する構造層と、
前記周囲接着性皮膚接触層に対応し、前記構造層の前記第１の表面の反対側の前記構造層の第２の表面と接触して配置された第２の接合層と、をさらに含み、
前記構造層は、前記周囲接着性皮膚接触層と前記第２の接合層との間に配置され、前記周囲接着性皮膚接触層と前記第２の接合層とに密封接合され、
前記第２の接合層は、前記吸収層の全周囲境界に隣接する前記吸収層の前記第１の表面の連続部分に密封接合される、
請求項１に記載の被覆材。 a first bonding layer located between the absorbent layer and the cover layer;
a structural layer corresponding to the surrounding adhesive skin-contacting layer and having a first surface joined to the surrounding adhesive skin-contacting layer;
a second bonding layer corresponding to the surrounding adhesive skin-contacting layer and disposed in contact with a second surface of the structural layer opposite the first surface of the structural layer;
the structural layer is disposed between the surrounding adhesive skin-contacting layer and the second bonding layer and is hermetically bonded to the surrounding adhesive skin-contacting layer and the second bonding layer;
the second bonding layer is hermetically bonded to a continuous portion of the first surface of the absorbent layer adjacent a circumferential boundary of the absorbent layer;
The coating material according to claim 1. 前記ゲル化吸収材料はゲル形成繊維又はフィラメントを含む、
請求項１に記載の被覆材。 the gelled absorbent material comprises gel-forming fibers or filaments;
The coating material according to claim 1. 前記ゲル形成繊維又はフィラメントは、化学修飾セルロース、アルギン酸塩、カルボキシメチルセルロース、又はそれらの組合せを含む、
請求項１５に記載の被覆材。 The gel-forming fibers or filaments include chemically modified cellulose, alginate, carboxymethyl cellulose, or combinations thereof.
The covering material according to claim 15. 前記吸収層はステッチを含む、
請求項１５に記載の被覆材。 the absorbent layer includes stitches;
The covering material according to claim 15. 前記吸収層は抗菌剤をさらに含む、
請求項１に記載の被覆材。 The absorbent layer further includes an antibacterial agent.
The coating material according to claim 1. 前記カバー層は、ポリウレタン（ＰＵ）、ポリ塩化ビニル（ＰＶＣ）、シリコーンエラストマー、フルオロポリマー、及びそれらの組合せからなる群から選択される部材を含む、
請求項１に記載の被覆材。 The cover layer comprises a member selected from the group consisting of polyurethane (PU), polyvinyl chloride (PVC), silicone elastomer, fluoropolymer, and combinations thereof.
The coating material according to claim 1. 前記開口部に密封接続され、前記吸収層と流体連通する陰圧源をさらに含む、
請求項１に記載の被覆材。 further comprising a source of negative pressure sealingly connected to the opening and in fluid communication with the absorbent layer;
The coating material according to claim 1. 前記陰圧源は、導管を用いて前記開口部に接続されたポンプを含む、
請求項２０に記載の被覆材。 the source of negative pressure includes a pump connected to the opening using a conduit;
The dressing according to claim 20. 前記吸収層と前記カバー層との間に配置された陰圧分散層をさらに含む、
請求項１に記載の被覆材。 further comprising a negative pressure dispersion layer disposed between the absorbent layer and the cover layer;
The coating material according to claim 1. 前記陰圧分散層は、連続気泡発泡体層を含む、
請求項２２に記載の被覆材。 The negative pressure distribution layer includes an open cell foam layer.
The dressing according to claim 22. 前記連続気泡発泡体層は疎水性である、
請求項２３に記載の被覆材。 the open cell foam layer is hydrophobic;
The dressing according to claim 23. 前記開口部の上の前記カバー層に取り付けられ、前記開口部を通して導管から前記創傷に陰圧を伝達するために前記導管に接続するように構成されたコネクタをさらに含む、
請求項１に記載の被覆材。 further comprising a connector attached to the cover layer over the opening and configured to connect to the conduit to transmit negative pressure from the conduit to the wound through the opening;
The coating material according to claim 1. 前記コネクタは、ポリウレタン又はポリ塩化ビニルを含む、
請求項２５に記載の被覆材。 the connector comprises polyurethane or polyvinyl chloride;
The dressing according to claim 25. 前記コネクタは交換インジケータを含む、
請求項２５に記載の被覆材。 the connector includes a replacement indicator;
The dressing according to claim 25. 使い捨ての陰圧創傷治療装置であって、
陰圧を発生させるための使い捨てポンプと、
創傷を被覆及び保護するための被覆材であって、
創傷に接触するための第１の表面と、前記第１の表面の反対側の第２の表面とを有する吸収層であって、ゲル化吸収材料を含み、前記被覆材によって覆われる創傷の寸法よりも大きい寸法を有する周囲境界を有する、吸収層と、
前記吸収層に面する第１の表面と、前記第１の表面の反対側の第２の表面とを有するカバー層であって、水不透過性かつ空気透過性であり、少なくとも前記吸収層の周囲寸法と同じ寸法を有する周囲境界を有し、前記カバー層の周囲に隣接する前記カバー層の一部は、前記吸収層の前記周囲境界に隣接する前記吸収層の一部に接合されている、カバー層と、
前記吸収層の前記周囲境界に隣接する前記吸収層の前記第１の表面に取り付けられた周囲接着性皮膚接触層であって、前記吸収層がこれを通して前記創傷に接触することができる窓を画定し、親水コロイド接着剤を含む、周囲接着性皮膚接触層と、
を含む、被覆材と、
を含み、
前記カバー層は、前記ポンプに接続された開口部を画定する、
装置。 A disposable negative pressure wound therapy device, comprising:
a disposable pump for generating negative pressure;
A dressing for covering and protecting a wound, comprising:
an absorbent layer having a first surface for contacting a wound and a second surface opposite the first surface, the absorbent layer comprising a gelling absorbent material, the size of the wound being covered by the dressing; an absorbent layer having a peripheral boundary having dimensions greater than
a cover layer having a first surface facing the absorbent layer and a second surface opposite the first surface, the cover layer being water impermeable and air permeable and having at least one surface of the absorbent layer; a portion of the cover layer adjacent to the periphery of the cover layer having a circumferential boundary having the same dimensions as a circumferential dimension is joined to a portion of the absorbent layer adjacent to the circumferential boundary of the absorbent layer; , a cover layer;
a peripheral adhesive skin contact layer attached to the first surface of the absorbent layer adjacent the peripheral border of the absorbent layer, the peripheral adhesive skin contact layer defining a window through which the absorbent layer can contact the wound; and a surrounding adhesive skin contact layer comprising a hydrocolloid adhesive;
A covering material, including;
including;
the cover layer defines an opening connected to the pump;
Device. 前記ポンプと前記被覆材の前記カバー層に画定された前記開口部との間の流体連通を提供する管腔を画定する導管をさらに含み、それにより、前記創傷の周囲の皮膚に前記周囲接着性皮膚接触層を圧力シールすることによって前記創傷上に前記被覆材を貼り付けるときに、前記ポンプの動作により創傷部位に陰圧が生じる、
請求項２８に記載の装置。 further comprising a conduit defining a lumen providing fluid communication between the pump and the opening defined in the cover layer of the dressing, thereby providing the surrounding adhesive to the skin surrounding the wound. operation of the pump creates a negative pressure at the wound site when applying the dressing over the wound by pressure sealing the skin-contacting layer;
29. Apparatus according to claim 28.
JP2022539334A 2019-12-27 2020-12-21 Negative pressure wound dressing Pending JP2023509605A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/728,290 2019-12-27
US16/728,290 US11331221B2 (en) 2019-12-27 2019-12-27 Negative pressure wound dressing
PCT/GB2020/053318 WO2021130475A1 (en) 2019-12-27 2020-12-21 Negative pressure wound dressing

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Publication Number Publication Date
JP2023509605A JP2023509605A (en) 2023-03-09
JPWO2021130475A5 true JPWO2021130475A5 (en) 2023-11-30

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US (2) US11331221B2 (en)
EP (1) EP4081173A1 (en)
JP (1) JP2023509605A (en)
CN (1) CN114901224B (en)
AU (1) AU2020411031A1 (en)
BR (1) BR112022012669A2 (en)
CA (1) CA3165954A1 (en)
CO (1) CO2022010529A2 (en)
WO (1) WO2021130475A1 (en)

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