JP7419072B2 - 創傷閉鎖のための折り畳み可能シートおよび使用方法 - Google Patents
創傷閉鎖のための折り畳み可能シートおよび使用方法 Download PDFInfo
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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Description
本出願は、2017年6月14日に出願された米国仮出願第62/519,775号に対する優先権を主張するものであり、参照によりその全体が組み込まれる。
急性区画症候群は、閉鎖筋区画内の組織圧が灌流圧力を超えるときに発生し、また最も一般的には脚または腕における区画で発生する。筋膜切開は、急性区画症候群を治療する外科的処置である。筋膜切開は、区画の減圧を可能にするために一つ以上の筋膜の切開から成り、そのため、大きな創傷が患者上に作り出されうる。このような創傷の閉鎖が、二次的感染症および他の合併症のリスクを最小限にしながら、下にある浮腫が治まった後、最優先される。手術、外傷、またはその他の状態いずれかの結果として、その他の大きな創傷または切開創傷も、閉鎖を必要としうる。既存の創傷の解除は、潜在的には不完全な下層筋膜閉鎖または感染などの二次的因子に起因しうる別の合併症である。
上層と下層、および、
上層と下層によって少なくとも部分的に画定された複数のセルであって、複数のセルが隣り合わせに配列された複数のセルを含み、
各セルがモザイク形状を有し、
複数のセルのうちの少なくとも一つが、折り畳み可能構造の垂直面で折り畳まれ、それによって折り畳み可能シートが折り畳まれるように構成される。
本明細書の本セクションまたは本明細書の他の場所で説明した創傷閉鎖装置は、折り畳み可能シートを含みうる。図2は、折り畳み可能シート200の一実施形態を示す。折り畳み可能シート200は、上層202、下層204、および上層204と下層204との間の中間容積または空間206を含みうる。折り畳み可能シート200は、隣り合わせに提供される複数のセル210を有しうる。セル210は、上層202の一部分、下層204の一部分、および、上層204と下層204との間の中間空間206に沿って上層204から下層204に延在するセル壁212によって画定されうる。いくつかの実施形態では、折り畳み可能シート200は、セル壁212を有しない場合もあり、セル210は、所望のパターンで上層204と下層208とを溶接することによって形成されてもよく、その結果、セルは上層204および下層208によってのみ画定される。本明細書でより詳細に記載するように、セル210のサイズおよび形状は、創傷のより大きな閉鎖を容易にするように設計されうる。いくつかの実施形態では、折り畳み可能シートは、シートが創傷の形状に成形されてもよく、および/または創傷のサイズにサイズ調整されてもよいように、裂くことができる。本明細書の他の場所に記載されるように、裂くことは、セル壁212、またはその他任意の適切な場所において成し遂げられうる。
図3は、図2の折り畳み可能シート200と類似し、組織350上に置かれる、折り畳み可能シート300の実施形態の断面図を示す。折り畳み可能シート300は、隣り合わせに提供されたセル310を含む。セル310は、膨張可能であってもよく、図2のセル210のように、セル壁320、上層302、および下層304によって画定される。いくつかの実施形態では、各セル310は、セル壁320、上層の一部分、および下層の一部分によって囲まれた空洞を有する。セル310の各空洞は、空気などの流体で充填されてもよく、および/またはセル310は膨張可能であってもよい。
図5は、図2~図4の折り畳み可能シートと類似した、折り畳み可能シート500の実施形態を示す。ここでは、折り畳み可能シート500は、隣り合わせて提供されたセル510を含み、膨張可能なセル壁セクション520によって囲まれる。いくつかの実施形態では、少なくとも一部のセル510は膨張可能である。いくつかの実施形態では、いずれのセル510も膨張可能ではない。セル510が六つの独立した膨張可能なセル壁セクション520によって囲まれる図5のように、単一のセルは複数の膨張可能なセル壁セクションによって囲まれてもよい。
図6Aは、図2~図5または本明細書のその他の場所において説明した折り畳み可能シートと類似した折り畳み可能シート630を含む創傷閉鎖装置600の実施形態を示す。ここでは、折り畳み可能シート630はセル610を含み、一つ以上のセルは、導管660を介して陰圧源(図示せず)に接続されたポート650を有する。いくつかの実施形態では、ポート650は、折り畳み可能シート630の下に陰圧を送達するように構成される。ポート650は、セル610の中央またはその近くに、または折り畳み可能シート630の中央に位置してもよく、そのため、折り畳み可能シート630が完全に折り畳まれる前に、ポートは簡単に封止されない。
本開示は特定の実施形態について説明するが、本開示で示され説明された方法および装置の多くの態様は、さらなる実施形態または容認できる実施例をさらに形成するために異なって組み合わされうるおよび/または変更されうることが当業者によって理解されるであろう。こうしたすべての修正および変形は、本開示の範囲内で本明細書に含まれることが意図される。実際に、幅広い設計および手法が実行可能であり、それらは本開示の範囲内である。本明細書に開示される特徴、構造、または工程は本質的であるか、または不可欠である。さらに、例示的な実施形態が本明細書に記述されているが、等価物、修正、省略、(例えば、様々な実施形態にわたる態様の)組み合わせ、置換、応用および/または変更を有する任意およびすべての実施形態の範囲が、本開示に基づいて当業者によって理解されるであろう。特定の実施形態が説明されてきたが、これらの実施形態は、単に例として提示されており、保護範囲を限定することを意図するものではない。
[付記項1]
創傷上に配置されるように構成された折り畳み可能シートを含む創傷閉鎖装置であって、前記折り畳み可能シートが、
上層と下層、および、
前記上層と前記下層によって少なくとも部分的に画定され、隣り合わせに配列された複数のセルを含み、
各セルがモザイク形状を有し、
前記複数のセルのうちの少なくとも一つが、前記折り畳み可能構造の垂直面で折り畳まれ、それによって前記折り畳み可能シートが折り畳まれるように構成される、創傷閉鎖装置。
[付記項2]
前記セルの少なくとも一部が膨張可能である、付記項1に記載の装置。
[付記項3]
前記上層または前記下層のうちの少なくとも一つが、可撓性の薄膜材料を含む、付記項1または2に記載の装置。
[付記項4]
前記セルの少なくとも一部が、陰圧が前記折り畳み可能シートに適用された時に折り畳まれるように構成される、付記項1~3のいずれか一項に記載の装置。
[付記項5]
少なくとも一つのセルが六角形状を有する、付記項1~4のいずれか一項に記載の装置。
[付記項6]
前記複数のセルが均一なサイズおよび形状を有する、付記項1~5のいずれか一項に記載の装置。
[付記項7]
前記複数のセルの少なくとも一部が不均一なサイズおよび/または形状を有する、付記項1~5のいずれか一項に記載の装置。
[付記項8]
前記折り畳み可能シートがセル壁をさらに含む、付記項1~7のいずれか一項に記載の装置。
[付記項9]
前記セル壁が膨張可能である、付記項8に記載の装置。
[付記項10]
前記折り畳み可能シートが、任意の特定のセルの折り畳みに際して、前記折り畳み可能シートが折り畳まれる方向を示すように構成された一つ以上のセル上の指標をさらに含む、付記項1~9のいずれか一項に記載の装置。
[付記項11]
前記折り畳み可能シートが、前記創傷を覆い、前記創傷の周りに封止を形成するように構成される、付記項1~10のいずれか一項に記載の装置。
[付記項12]
前記創傷に陰圧を供給するように構成された吸引ポートをさらに含む、付記項1~11のいずれか一項に記載の装置。
[付記項13]
前記ポートが前記折り畳み可能シートに一体化される、付記項12に記載の装置。
[付記項14]
前記ポートが、バルブであって、創傷流体の吸収速度が創傷流体の蒸発速度よりも速い場合に、膨張して前記バルブを少なくとも部分的に閉めるように構成された超吸収性材を含むバルブをさらに含む、付記項12または13に記載の装置。
[付記項15]
前記折り畳み可能シートの底面が、セル間の一つ以上の間隙を含む、付記項1~14のいずれか一項に記載の装置。
[付記項16]
前記折り畳み可能シートの下で前記創傷上に位置付けられるように構成された組織保護層をさらに含む、付記項1~15のいずれか一項に記載の装置。
[付記項17]
前記折り畳み可能シートを覆い、前記創傷の周りで封止を形成するように構成された一つ以上のドレープをさらに含む、付記項1~16のいずれか一項に記載の装置。
[付記項18]
創傷を治療する方法であって、
前記付記項1~17のいずれか一項に記載の折り畳み可能シートを、前記創傷上に配置することを含む、方法。
[付記項19]
前記折り畳み可能シートを通して陰圧を前記創傷に適用するかまたは適用を発生させることをさらに含み、
前記陰圧の適用によって、前記折り畳み可能シートが折り畳まれる、付記項18に記載の方法。
[付記項20]
前記折り畳み可能シートを配置する前に、前記創傷上に組織保護層を配置することをさらに含む、付記項18または19に記載の方法。
[付記項21]
実質的に示されおよび/または説明される装置。
[付記項22]
実質的に示されおよび/または説明される方法。
Claims (15)
- 創傷上に配置されるように構成された折畳可能シートを含む創傷閉鎖装置であって、前記折畳可能シートが、
上層および下層と、
前記上層と前記下層によって少なくとも部分的に画定された複数のセルであって、隣り合わせに配列された、複数のセルと、
を含み、
前記セルそれぞれが、モザイク形状を有し、
複数の前記セルのうちの少なくとも一つが、前記折畳可能シートの厚さに平行な垂直面で折り畳まれ、それによって前記折畳可能シートが折り畳まれるように構成され、
前記セルの少なくとも一部が膨張可能である、創傷閉鎖装置。 - 前記上層および前記下層のうちの少なくとも一方が、可撓性の薄膜材料を含む、請求項1に記載の創傷閉鎖装置。
- 前記セルの少なくとも一部が、陰圧を前記折畳可能シートにかけた時に折り畳まれるように構成される、請求項1または2に記載の創傷閉鎖装置。
- 少なくとも一つのセルが六角形状を有する、請求項1~3のいずれか一項に記載の創傷閉鎖装置。
- 複数の前記セルが均一なサイズおよび形状を有する、請求項1~4のいずれか一項に記載の創傷閉鎖装置。
- 複数の前記セルの少なくとも一部が不均一なサイズおよび/または形状を有する、請求項1~4のいずれか一項に記載の創傷閉鎖装置。
- 前記折畳可能シートがセル壁をさらに含む、請求項1~6のいずれか一項に記載の創傷閉鎖装置。
- 前記セル壁が膨張可能である、請求項7に記載の創傷閉鎖装置。
- 前記折畳可能シートが、任意の特定の前記セルの折り畳みに際して、前記折畳可能シートが折り畳まれる方向を示すように構成された一以上の前記セル上の指標をさらに含む、請求項1~8のいずれか一項に記載の創傷閉鎖装置。
- 前記折畳可能シートが、前記創傷を覆い、前記創傷の周りに封止を形成するように構成される、請求項1~9のいずれか一項に記載の創傷閉鎖装置。
- 前記創傷に陰圧を供給するように構成された吸引ポートをさらに含み、
前記吸引ポートが前記折畳可能シートに一体化される、請求項1~10のいずれか一項に記載の創傷閉鎖装置。 - 前記吸引ポートが、バルブを含み、
前記バルブが、創傷流体の吸収速度が創傷流体の蒸発速度よりも速い場合に、膨張して前記バルブを少なくとも部分的に閉めるように構成された超吸収性材を含む、請求項11に記載の創傷閉鎖装置。 - 前記折畳可能シートの底面が、前記セルと前記創傷との間に一以上の間隙を含む、請求項1~12のいずれか一項に記載の創傷閉鎖装置。
- 前記折畳可能シートの下で前記創傷上に位置付けられるように構成された組織保護層をさらに含む、請求項1~13のいずれか一項に記載の創傷閉鎖装置。
- 前記折畳可能シートを覆い、前記創傷の周りで封止を形成するように構成された一以上のドレープをさらに含む、請求項1~14のいずれか一項に記載の創傷閉鎖装置。
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JP2020523105A (ja) | 2020-08-06 |
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