JP2008513172A - 医療機器及び医療機器を製造する方法 - Google Patents
医療機器及び医療機器を製造する方法 Download PDFInfo
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- JP2008513172A JP2008513172A JP2007532961A JP2007532961A JP2008513172A JP 2008513172 A JP2008513172 A JP 2008513172A JP 2007532961 A JP2007532961 A JP 2007532961A JP 2007532961 A JP2007532961 A JP 2007532961A JP 2008513172 A JP2008513172 A JP 2008513172A
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- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
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- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
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Abstract
Description
直径2.5cm及び厚さ3.5mmのシリコーンエラストマーのディスク形態の創傷保護材(例えば、カテーテル又は外部固定ピンの出口部位の保護のため)をリファンピン+クリンダマイシン(A)、リファンピン+クリンダマイシン+トリクロサン(B)又はトリクロサン単独(C)で含浸させた。その後、このディスクをオートクレーブにかけることによって滅菌させ、グラム陽性菌である黄色ブドウ球菌を播種した寒天プレート上に置いた。一晩インキュベート後、阻害された帯域を測定し、ディスクをさらに播種したプレートに移し、この帯域が見えなくなるまでこのプロセスを繰り返した。阻害された帯域の内側又はディスクの下部で増殖した任意の細菌コロニーのトリクロサンに対する最小発育阻止濃度(MIC)を測定し、元の接種材料とのこれらの同等性をパルスフィールドゲル電気泳動法で測定した。この結果は以下の通りであった。
カテーテルの出口部位/トラック感染の模擬試験において、リファンピン+クリンダマイシン+トリクロサンで含浸されたカテーテルを模擬試験「組織」(一般的な細菌栄養物質(bacterial nutrient)及びデキストロース及びpH指示薬を含む半流動寒天)に挿入して、「皮膚」の出口部位をブドウ球菌で毎日攻撃した。含浸していないカテーテルを対照として使用した(図8)。含浸していないカテーテルに関して、細菌増殖130を液体/気体界面及び隣接するカテーテルの外表面に見ることができた。この細菌増殖130は、紫色から黄色に寒天の色を変化させ、酸代謝物の生成によるpHの低下を示す。対して、含浸されたカテーテル(図9)では、出口部位での細菌増殖の兆候が示されず、カテーテル外部の下方へトラックするものは何も見ることができなかった。pHは全く変化しなかった(元の色である紫色)。
Claims (61)
- 抗菌剤の組み合わせで含浸される医療機器材料であって、該抗菌剤の組み合わせが、第1の抗菌剤としてトリクロサンと少なくとも第2の抗菌剤とを含み、約80日間以上、抗菌活性及び耐性のある細菌の突然変異体の阻害を該機器材料に提供する、抗菌剤の組み合わせで含浸される医療機器材料。
- 前記抗菌剤の組み合わせが、抗菌活性並びにグラム陽性菌由来並びにグラム陰性菌由来の両方の耐性のある突然変異体の阻害を前記機器に提供する、請求項1に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記グラム陰性菌が大腸菌(Escherichia coli)を含む、請求項2に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記グラム陽性菌が黄色ブドウ球菌(Staphylococcus aureus)を含む、請求項2又は3に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤が、リファマイシン、リンコマイシン、トリメトプリム、又はこれらの誘導体から選択される、請求項1〜4のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がトリクロサンとは異なる作用形態を有する、請求項1〜5のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記作用形態がタンパク質合成の阻害である、請求項6に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がリンコマイシン又はこの誘導体である、請求項7に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がクリンダマイシンである、請求項8に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記作用形態がRNA合成の阻害である、請求項6に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がリファマイシン又はこの誘導体である、請求項10に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がリファンピンである、請求項11に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記ポリマー材料が第3の抗菌剤で含浸されて、前記第2の抗菌剤がリンコマイシン又はこの誘導体、例えばクリンダマイシンである場合、該第3の抗菌剤はリファマイシン又はこの誘導体、例えばリファンピンであり、該第2の抗菌剤がリファマイシン又はこの誘導体、例えばリファンピンである場合、該第3の抗菌剤はリンコマイシン又はこの誘導体、例えばクリンダマイシンである、請求項1〜12のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 抗菌剤の組み合わせで含浸される医療機器材料であって、該抗菌剤の組み合わせが、第1の抗菌剤としてトリクロサンと第2の抗菌剤と第3の抗菌剤とを含み、約80日間以上、抗菌活性及び耐性のある細菌の突然変異体の阻害を該機器に提供する、抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤が前記第3の抗菌剤とは異なる作用形態を有する、請求項14に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤の前記作用形態がタンパク質合成の阻害である、請求項15に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がリンコマイシン又はこの誘導体である、請求項16に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第2の抗菌剤がクリンダマイシンである、請求項17に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第3の抗菌剤の前記作用形態がRNA合成の阻害である、請求項14〜18のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第3の抗菌剤がリファマイシン又はこの誘導体である、請求項19に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記第3の抗菌剤がリファンピンである、請求項20に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記抗菌剤の組み合わせが、約90日間以上、約100日間以上、約120日間以上、約140日間以上、約160日間以上、並びに約190日間以上のいずれかにわたって、抗菌活性及び耐性のある細菌の突然変異体の阻害を前記機器に提供する、請求項1〜21のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- シリコーンエラストマー、ポリアルケン、ポリ塩化ビニルポリエチレンテレフタレート、PTFE、シリコーンポリウレタン共重合体、及びポリウレタンラテックスから選択されるポリマー材料を含む、請求項1〜22のいずれか1項に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 前記ポリマー材料がシリコーンエラストマーである、請求項23に記載の抗菌剤の組み合わせで含浸される医療機器材料。
- 請求項1〜24のいずれか1項に記載の医療機器材料を含む医療機器。
- 創傷保護材、脳室外ドレナージ機器、オンマヤ槽、髄腔内ポンプ、全体が埋め込まれる中心静脈カテーテル等の中心静脈カテーテル、腹水シャント、ペースメーカー、持続的携帯型腹膜カテーテル、ボイスプロテーゼ(voice prostheses:人工声帯)、血管グラフト、導尿カテーテル、眼内レンズ、及び創傷保護材の1つである、請求項25に記載の医療機器。
- 経皮部を備える、請求項25に記載の医療機器。
- 創傷保護材であって、患者の皮膚表面に接する接触面、該接触面から離れて配置される第2の表面、及び該第2の表面から突出する突出部を含み、該突出部が、該突出部を該第1の表面まで通る穴(bore:ボア)を備え、該突出部が使用時に該穴の中で経皮デバイスを保持するように適合される、創傷保護材。
- 実質的にポリマー材料から成る、請求項28に記載の創傷保護材。
- 前記ポリマー材料がシリコーンエラストマー、ポリアルケン、及びポリウレタンラテックスから選択される、請求項29に記載の創傷保護材。
- 前記ポリマー材料がシリコーンエラストマーである、請求項30に記載の創傷保護材。
- 創傷保護材であって、患者の皮膚表面と接する接触面、及び経皮デバイスを保持するための、該創傷保護材を通過する穴を有し、シリコーンエラストマー、ポリアルケン、及びポリウレタンラテックスから選択されるポリマー材料から実質的に成る、創傷保護材。
- 前記ポリマー材料がシリコーンエラストマーである、請求項32に記載の創傷保護材。
- 第1の抗菌剤で含浸される、請求項28〜33のいずれか1項に記載の創傷保護材。
- 前記第1の抗菌剤がトリクロサンである、請求項34に記載の創傷保護材。
- 前記創傷保護材が第2の抗菌剤で含浸され、それにより前記第1の抗菌剤及び該第2の抗菌剤の1つに耐性があるように突然変異する細菌が該第1の抗菌剤及び該第2の抗菌剤のもう1つとは耐性でなくなる、請求項34又は35に記載の創傷保護材。
- 前記創傷保護材が第3の抗菌剤で含浸され、前記3つの抗菌剤の効果により、該抗菌剤の2つに耐性があるように突然変異する細菌が残りの1つの抗菌剤に耐性がなくなる、請求項36に記載の創傷保護材。
- 創傷保護材であって、患者の皮膚表面に接する接触表面、及び経皮デバイスを保持するための、該創傷保護材を通過する穴を備え、第1の抗菌剤及び第2の抗菌剤で含浸され、それにより該第1の抗菌剤及び該第2の抗菌剤の1つと耐性のあるように単一点突然変異で突然変異する細菌が、該第1の抗菌剤及び該第2の抗菌剤のもう1つに耐性のあるように突然変異することが許容されない、創傷保護材。
- 前記創傷保護材が第3の抗菌剤で含浸され、前記3つの抗菌剤の効果により、該抗菌剤の2つに耐性があるように突然変異する細菌が残りの1つの抗菌剤に耐性がなくなる、請求項38に記載の創傷保護材。
- 前記抗菌剤の1つがトリクロサンである、請求項38又は39に記載の創傷保護材。
- 前記接触表面から離れて配置される第2の表面を備え、第2の表面から突出する突出部を含み、前記穴が該突出部及び該ディスク部位を通過する、請求項32又は40のいずれか1項に記載の創傷保護材。
- 透明である、請求項28〜41のいずれか1項に記載の創傷保護材。
- 前記経皮デバイスが中心静脈カテーテル、持続性携帯型腹膜カテーテル、導尿カテーテル、脳室外ドレーン、骨折安定化用の外部固定ピン若しくはスクリュー、及び創傷ドレーン用のカテーテル、オンマヤ槽、又は髄腔内ポンプの1つである、請求項28〜42のいずれか1項に記載の創傷保護材。
- 医療機器を製造する方法であって、
ポリマー材料から医療機器を製造すること;
該製造される医療機器を膨張剤と第1の抗菌剤であるトリクロサンとの溶液で含浸させること:
該膨張剤とトリクロサンとの該溶液を該製造される医療機器に浸透させること;及び
該医療機器から該膨張剤を除去することであって、それによって該医療機器に含浸されたトリクロサンを残す、除去すること
を含む、医療機器を製造する方法。 - 前記膨張剤と前記第1の抗菌剤との前記溶液が第2の抗菌剤をさらに含み、それにより該第1の抗菌剤及び該第2の抗菌剤の1つに耐性があるように突然変異する細菌が、該第1の抗菌剤及び該第2の抗菌剤のもう1つに耐性がないようになる、請求項44に記載の医療機器を製造する方法。
- 前記膨張剤と前記第1の抗菌剤と前記第2の抗菌剤との前記溶液が第3の抗菌剤をさらに含み、該3つの抗菌剤の効果により、該抗菌剤の2つに耐性があるように突然変異する細菌が残りの1つの抗菌剤に耐性がなくなる、請求項45に記載の医療機器を製造する方法。
- 前記含浸される医療機器をオートクレーブにかけることをさらに含む、請求項44〜46のいずれか1項に記載の医療機器を製造する方法。
- 前記オートクレーブにかけることは、約121℃及び1×105n/m2で行われる、請求項47に記載の医療機器を製造する方法。
- 前記膨張剤がヘキサン、トルエン、キシレン、クロロホルム、エステル、ケトン、及び塩化メチレンの1つ又は複数である、請求項44〜48のいずれか1項に記載の医療機器を製造する方法。
- ポリマー材料がシリコーンエラストマー、ポリアルケン、ポリ塩化ビニルポリエチレンテレフタレート、PTFE、シリコーンポリウレタン共重合体、及びポリウレタンラテックスから選択される、請求項44〜49のいずれか1項に記載の医療機器を製造する方法。
- 前記ポリマー材料がシリコーンエラストマーである、請求項50に記載の抗菌剤の医療機器を製造する方法。
- 医療機器を製造する方法であって、
該医療機器の第1の部分を第1の抗菌剤で含浸させること;
該第1の部分とは異なる該医療機器の第2の部分を第2の抗菌剤で含浸させること;及び
該第1の部分及び該第2の部分の一方又は両方を処理することであって、それによって該医療機器が該第1の抗菌剤及び該第2の抗菌剤の両方を有する部分を備える、処理すること
を含む、医療機器を製造する方法。 - 前記含浸させる過程が、前記第1の部分及び前記第2の部分がお互いに離れている状態で行われ、前記処理する過程が、該第1の部分及び該第2の部分がお互いに接触している状態で行われる、請求項52に記載の医療機器を製造する方法。
- 前記第1の部分が第1の技法を使用して前記第1の抗菌剤で含浸され、前記第2の部分が第2の異なる技法を使用して前記第2の抗菌剤で含浸される、請求項52又は53に記載の医療機器を製造する方法。
- 前記第1の技法が請求項44〜51のいずれか1項に記載の方法を含み、前記第2の技法が、超臨界流体中の前記第2の抗菌剤の溶液、乳液、又は懸濁液で、該第2の抗菌剤を前記第2の部分に含浸させることを含む、請求項54に記載の医療機器を製造する方法。
- 前記処理することが、前記第1の部分及び前記第2の部分の少なくとも1つの少なくとも一部に熱を加えることである、請求項52〜55のいずれか1項に記載の医療機器を製造する方法。
- 前記処理することが、前記医療機器をオートクレーブにかけることである、請求項52〜55のいずれか1項に記載の医療機器を製造する方法。
- 前記処理することが、前記医療機器に超音波を加えることを含む、請求項52〜55のいずれか1項に記載の医療機器を製造する方法。
- 図1に関して明細書中に記載したような方法。
- 請求項44〜59のいずれか1項に記載の方法で製造される、請求項1〜24のいずれか1項に記載の医療機器材料、請求項25〜27のいずれか1項に記載の医療機器、又は請求項28〜43のいずれか1項に記載の創傷保護材。
- 図1〜図9に関して明細書中に記載したような医療機器。
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PCT/GB2005/003667 WO2006032904A2 (en) | 2004-09-23 | 2005-09-22 | Medical devices and methods of making medical devices |
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EP (3) | EP1804845B1 (ja) |
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JP2022539891A (ja) * | 2019-07-11 | 2022-09-13 | ボマリス イノベーションズ インコーポレイテッド | 外部固定部位を治療するための方法および装置 |
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US20170354813A1 (en) | 2017-12-14 |
EP1804845B1 (en) | 2018-09-12 |
WO2006032904A2 (en) | 2006-03-30 |
EP2272545A3 (en) | 2014-11-12 |
EP2289574A3 (en) | 2014-07-02 |
EP2272545B1 (en) | 2019-11-06 |
US20070224243A1 (en) | 2007-09-27 |
EP2272545A2 (en) | 2011-01-12 |
EP2289574A2 (en) | 2011-03-02 |
JP5393030B2 (ja) | 2014-01-22 |
EP2289574B1 (en) | 2019-07-17 |
EP1804845A2 (en) | 2007-07-11 |
CA2580894C (en) | 2013-06-25 |
WO2006032904A3 (en) | 2006-10-26 |
US10500388B2 (en) | 2019-12-10 |
CA2580894A1 (en) | 2006-03-30 |
GB0421164D0 (en) | 2004-10-27 |
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