JP2022550247A - 酸化セルロースから構成される膨張性止血剤 - Google Patents
酸化セルロースから構成される膨張性止血剤 Download PDFInfo
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Abstract
Description
材料
以下の表1は、例示的な膨張実験に使用されるORC形態を示す。
*錠剤「A」及び「B」は、ニット布(A=SURGICELオリジナル、B=NU-KNIT)から作製され、錠剤「C」及び「D」は、織材料又は不織(非ニット)材料(C=FIBRILLAR、D=SNoW)のいずれかから作製される。
0.5gの試料を、各材料から秤量した。秤量した試料を、直径1cmの円形の錠剤型にプレスした。0.5、2、及び5トンの圧縮力を施し、その結果、それらの圧縮レベルが異なるORC錠剤を得た。
各プレスされた試料の厚さを、キャリパを使用して測定して、その初期体積を計算した。透明な直径12mmのメスシリンダーを、生理食塩水で10mLまで充填した。次に、直径10mmの試料錠剤を、メスシリンダー内の生理食塩水中に、シリンダーの上面から投下した。投下時点でタイマーを開始した。試料はほとんど水平に拘束され、液体を吸収し始め、主に垂直軸に膨張し始めた。消費される試料の体積は、透明なメスシリンダーを通して適切に視覚化され、評価された。投下後4秒で、膨張率を評価した。最大膨張率、並びに最大膨張が達成されるまでの時間の長さを記録した。
1.キャリパ-Sylva「SCal pro IP67」
2.直径12mmのメスシリンダー-「Plasti Brand」
3.手動油圧プレス-Specac Atlasシリーズ15トンプレス
4.10mmの排気可能ペレットダイ-Specac
5.デジタルタイマーTM-44-MICROTEMP ELECTRICS CO.,LTD
例示的な手順では、とりわけ、異なる加工ORC材料から、生成された膨張性錠剤の速度及び膨張度を評価した。結果は、様々な失血シナリオにおいて効果的な止血剤として機能させるために、各タイプの圧縮ORCの可能性に関する推定値を提供する。
*円形1cmの金型を想定すると、πr2による計算で、0.785cm2が与えられる。
**シリンダーの表面積=2πr2+2πrh
材料:「1」-SURGICEL、「2」-NU-KNIT、「3」-FIBRILLAR、「4」-SNoW、「5」-粉砕ORC、「6」-ガーゼパッド(非酸化セルロース)
インビボ研究では、異なる布(ニット布及び不織布)から構成される代表的な錠剤の差異的な止血効果を研究した。
ORC材料C又はORC材料A(各5g)を、2トンの圧縮力を加えることによって、0.4mL(cm3)の錠剤に圧縮した。
ブタ脾臓生検パンチモデル:約60kgの成体雌ブタを、外科的処置の前に、24時間絶食させた。動物を1150~1400mgのケタミン、115~140mgのキシラジン、7.5mgのミダゾラムで麻酔した。イソフルランで麻酔を維持し、開腹して、脾臓を露出した。
約60kgの成体雌ブタを、上に記載のように処置し、開腹して、肝臓又は脾臓を露出させ、生検手順の前に、27,000IUのヘパリンを投与した。ヘパリン処理を監視するために、ACT(活性化凝固時間)試験を使用した。したがって、安定したACTレベルを維持するために、ヘパリンブーストを与えた。ヘパリンは、注射用抗凝固剤として(アンチトロンビンIIIの活性化を通じて)使用される。したがって、このモデルは、チャレンジ出血モデルを表す。
(1) 酸化セルロース(OC)を含む生分解性止血マトリックスであって、前記OCが、1つ又は2つ以上のシートを含み、前記マトリックスが、(i)約0.8~約1.2gr/cm3の範囲の密度を有し、(ii)10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の少なくとも3倍に膨張可能である、生分解性止血マトリックス。
(2) 約1.2gr/cm3の密度を有する、実施態様1に記載のマトリックス。
(3) 5mm3超の体積を有する、実施態様1又は2に記載のマトリックス。
(4) 圧縮状態にある、実施態様1~3のいずれかに記載のマトリックス。
(5) 円筒形、長方形、及び/又は多角形の形状を有する、実施態様1~4のいずれかに記載のマトリックス。
(7) 10~30℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の15~30倍に膨張可能である、実施態様6に記載のマトリックス。
(8) 錠剤及び創傷包帯から選択される形態である、実施態様1~7のいずれかに記載のマトリックス。
(9) 前記OCが、酸化再生セルロース(ORC)を含む、実施態様1~8のいずれかに記載のマトリックス。
(10) 前記ORCが、ニット布、不織布、織布、細断材料、及びそれらの任意の組み合わせから選択される形態である、実施態様9に記載のマトリックス。
(12) カルシウム塩、抗感染剤、及び止血促進剤からなる群から選択される1つ又は2つ以上の添加剤を更に含む、実施態様1~11のいずれかに記載のマトリックス。
(13) 塩化ナトリウム、マンニトール、アルブミン、及び酢酸ナトリウムからなる群から選択される1つ又は2つ以上の賦形剤を更に含む、実施態様1~12のいずれかに記載のマトリックス。
(14) 前記OCのカルボキシル含有量が、米国薬局方(USP)23-NF18に従って、12重量%~21重量%の範囲である、実施態様1~13のいずれかに記載のマトリックス。
(15) 約0.5~約10cm2、任意選択的に、約3~約5cm2の範囲の膨張前総表面積を有する、実施態様1~14のいずれかに記載のマトリックス。
(17) 軟組織における出血を制御する際に使用するための、実施態様1~16のいずれかに記載のマトリックス。
(18) 微生物の負荷の形成を阻害又は低減する際に使用するための、実施態様1~17のいずれかに記載のマトリックス。
(19) OC系材料を、その表面に0.3~7トン/cm2の範囲の圧力を加えることによって、圧縮することによって生成されている、実施態様1~18のいずれかに記載のマトリックス。
(20) 前記OCが、前記水溶液と接触する前に、8%未満の水、任意選択的に、5%未満の水を含む、実施態様1~19のいずれかに記載のマトリックス。
(22) 10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の少なくとも5倍に膨張可能である、実施態様1~21のいずれかに記載のマトリックス。
(23) 10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の3~6倍に膨張可能である、実施態様1~21のいずれかに記載のマトリックス。
(24) 実施態様1~23のいずれかに記載の止血マトリックスを作製する方法であって、OC系材料を、その表面に約0.3~約7トン/cm2の範囲の圧力を加えることによって、圧縮するステップを含む、方法。
(25) 前記OC材料が、ORCを含む、実施態様24に記載の方法。
(27) 前記OC材料を、カルシウム塩、抗感染剤、及び止血促進剤からなる群から選択される1つ又は2つ以上の添加剤と混合するステップを更に含む、実施態様24~26のいずれかに記載の方法。
(28) 創傷を治療する方法であって、実施態様1~23のいずれかに記載の生分解性止血マトリックスを、それを必要とする対象の前記創傷上及び/又は内に適用するステップを含む、方法。
Claims (28)
- 酸化セルロース(OC)を含む生分解性止血マトリックスであって、前記OCが、1つ又は2つ以上のシートを含み、前記マトリックスが、(i)約0.8~約1.2gr/cm3の範囲の密度を有し、(ii)10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の少なくとも3倍に膨張可能である、生分解性止血マトリックス。
- 約1.2gr/cm3の密度を有する、請求項1に記載のマトリックス。
- 5mm3超の体積を有する、請求項1又は2に記載のマトリックス。
- 圧縮状態にある、請求項1~3のいずれか一項に記載のマトリックス。
- 円筒形、長方形、及び/又は多角形の形状を有する、請求項1~4のいずれか一項に記載のマトリックス。
- 水溶液に浸漬した後、30秒以内に、その最大膨張容量の少なくとも90%に膨張することができる、請求項1~5のいずれか一項に記載のマトリックス。
- 10~30℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の15~30倍に膨張可能である、請求項6に記載のマトリックス。
- 錠剤及び創傷包帯から選択される形態である、請求項1~7のいずれか一項に記載のマトリックス。
- 前記OCが、酸化再生セルロース(ORC)を含む、請求項1~8のいずれか一項に記載のマトリックス。
- 前記ORCが、ニット布、不織布、織布、細断材料、及びそれらの任意の組み合わせから選択される形態である、請求項9に記載のマトリックス。
- 前記ORCが、不織布の形態である、請求項10に記載のマトリックス。
- カルシウム塩、抗感染剤、及び止血促進剤からなる群から選択される1つ又は2つ以上の添加剤を更に含む、請求項1~11のいずれか一項に記載のマトリックス。
- 塩化ナトリウム、マンニトール、アルブミン、及び酢酸ナトリウムからなる群から選択される1つ又は2つ以上の賦形剤を更に含む、請求項1~12のいずれか一項に記載のマトリックス。
- 前記OCのカルボキシル含有量が、米国薬局方(USP)23-NF18に従って、12重量%~21重量%の範囲である、請求項1~13のいずれか一項に記載のマトリックス。
- 約0.5~約10cm2、任意選択的に、約3~約5cm2の範囲の膨張前総表面積を有する、請求項1~14のいずれか一項に記載のマトリックス。
- 約0.05cm3~約2cm3、任意選択的に、約0.4~約0.8cm3の範囲の膨張前体積を有する、請求項1~14のいずれか一項に記載のマトリックス。
- 軟組織における出血を制御する際に使用するための、請求項1~16のいずれか一項に記載のマトリックス。
- 微生物の負荷の形成を阻害又は低減する際に使用するための、請求項1~17のいずれか一項に記載のマトリックス。
- OC系材料を、その表面に0.3~7トン/cm2の範囲の圧力を加えることによって、圧縮することによって生成されている、請求項1~18のいずれか一項に記載のマトリックス。
- 前記OCが、前記水溶液と接触する前に、8%未満の水、任意選択的に、5%未満の水を含む、請求項1~19のいずれか一項に記載のマトリックス。
- 10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の少なくとも4倍に膨張可能である、請求項1~20のいずれか一項に記載のマトリックス。
- 10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の少なくとも5倍に膨張可能である、請求項1~21のいずれか一項に記載のマトリックス。
- 10~40℃の少なくとも1つの温度で水溶液と接触すると、4秒以内に、その元の体積の3~6倍に膨張可能である、請求項1~21のいずれか一項に記載のマトリックス。
- 請求項1~23のいずれか一項に記載の止血マトリックスを作製する方法であって、OC系材料を、その表面に約0.3~約7トン/cm2の範囲の圧力を加えることによって、圧縮するステップを含む、方法。
- 前記OC材料が、ORCを含む、請求項24に記載の方法。
- 前記ORCが、不織形態である、請求項25に記載の方法。
- 前記OC材料を、カルシウム塩、抗感染剤、及び止血促進剤からなる群から選択される1つ又は2つ以上の添加剤と混合するステップを更に含む、請求項24~26のいずれか一項に記載の方法。
- 創傷を治療する方法であって、請求項1~23のいずれか一項に記載の生分解性止血マトリックスを、それを必要とする対象の前記創傷上及び/又は内に適用するステップを含む、方法。
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IL268572A IL268572A (en) | 2019-08-07 | 2019-08-07 | An expandable hemostatic composed of oxidized cellulose |
IL268572 | 2019-08-07 | ||
PCT/IB2020/057322 WO2021024159A1 (en) | 2019-08-07 | 2020-08-03 | Expandable hemostat composed of oxidized cellulose |
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US11654057B2 (en) * | 2020-04-09 | 2023-05-23 | Bio 54, Llc | Devices for bleeding reduction and methods of making and using the same |
KR102458897B1 (ko) * | 2022-02-21 | 2022-10-27 | 대가파우더시스템 주식회사 | 지혈제가 내재된 지혈 유닛 |
US20240148933A1 (en) | 2022-11-08 | 2024-05-09 | Ethicon, Inc. | Expandable hemostatic tablets comprising oxidized regenerated cellulose |
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US3364200A (en) | 1960-03-28 | 1968-01-16 | Johnson & Johnson | Oxidized cellulose product and method for preparing the same |
US5180398A (en) | 1990-12-20 | 1993-01-19 | Johnson & Johnson Medical, Inc. | Cellulose oxidation by a perfluorinated hydrocarbon solution of nitrogen dioxide |
US8083768B2 (en) | 2000-12-14 | 2011-12-27 | Ensure Medical, Inc. | Vascular plug having composite construction |
US7279177B2 (en) * | 2002-06-28 | 2007-10-09 | Ethicon, Inc. | Hemostatic wound dressings and methods of making same |
US20040120993A1 (en) * | 2002-12-20 | 2004-06-24 | Guanghui Zhang | Hemostatic wound dressing and fabric and methods of making and using same |
US7019191B2 (en) * | 2003-03-25 | 2006-03-28 | Ethicon, Inc. | Hemostatic wound dressings and methods of making same |
US20040265371A1 (en) | 2003-06-25 | 2004-12-30 | Looney Dwayne Lee | Hemostatic devices and methods of making same |
US20050287215A1 (en) | 2004-06-29 | 2005-12-29 | Looney Dwayne L | Hemostatic compositions and devices |
US20070014862A1 (en) * | 2004-10-12 | 2007-01-18 | Cornelis Pameijer | Device for treating wound gaps |
US20060078589A1 (en) | 2004-10-12 | 2006-04-13 | Jensen Steven D | Device for treating oral wound gaps |
CN101137402B (zh) | 2004-10-20 | 2012-01-11 | 伊西康公司 | 供医疗装置用的加固可吸收多层织物及其制备方法 |
US20080027365A1 (en) | 2006-06-01 | 2008-01-31 | Huey Raymond J | Hemostatic device with oxidized cellulose pad |
WO2010129587A1 (en) | 2009-05-04 | 2010-11-11 | Oregon Biomedical Engineering Institute, Inc. | Hemorrhage control devices and methods |
US8518064B2 (en) | 2009-12-17 | 2013-08-27 | Cook Medical Technologies Llc | Method for anchoring occlusion plug |
US8329211B2 (en) | 2010-05-17 | 2012-12-11 | Ethicon, Inc. | Reinforced absorbable multi-layered fabric for hemostatic applications |
US9623223B2 (en) | 2011-02-16 | 2017-04-18 | Revmedx, Inc. | Wound dressings comprising a plurality of liquid-expandable articles |
US8815832B2 (en) | 2012-05-25 | 2014-08-26 | Ethicon, Inc. | Oxidized regenerated cellulose hemostatic powders and methods of making |
KR101878774B1 (ko) * | 2015-04-15 | 2018-07-17 | 주식회사 삼양바이오팜 | 다기능성 지혈제 및 그 제조 방법 |
RU2723215C2 (ru) * | 2015-08-14 | 2020-06-09 | Этикон, Инк. | Способ лечения заболевания с использованием соединения, оказывающего воздействие на гликолиз |
CA3004272C (en) * | 2015-11-06 | 2023-11-07 | Ethicon, Inc. | Compacted hemostatic cellulosic aggregates |
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BR112022002185A2 (pt) | 2022-05-03 |
WO2021024159A1 (en) | 2021-02-11 |
CA3149947A1 (en) | 2021-02-11 |
IL268572A (en) | 2019-09-26 |
CN114340685A (zh) | 2022-04-12 |
KR20220044792A (ko) | 2022-04-11 |
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US20210038757A1 (en) | 2021-02-11 |
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