JP5808809B2 - 抗菌性塩酸カテーテルロック溶液及び使用方法 - Google Patents
抗菌性塩酸カテーテルロック溶液及び使用方法 Download PDFInfo
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- JP5808809B2 JP5808809B2 JP2013523164A JP2013523164A JP5808809B2 JP 5808809 B2 JP5808809 B2 JP 5808809B2 JP 2013523164 A JP2013523164 A JP 2013523164A JP 2013523164 A JP2013523164 A JP 2013523164A JP 5808809 B2 JP5808809 B2 JP 5808809B2
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
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Description
1) Garland J.S., Alex C.P., Henrickson K.J., McAuliffe T.L.及びMaki D.G. (2005) A vancomycin-heparin lock solution for prevention of nosocomial bloodstream infection in critically ill neonates with peripherally inserted central venous catheters: a prospective, randomized trial. Pediatrics 116: e198-205;
2) Weijmer M.C., Van den Dorpel M.A., Van de Ven P.J.G. (2005) Randomized, Clinical Trial Comparison of Trisodium Citrate 30% and Heparin as Catheter-Locking Solution in Hemodialysis Patients. J Am Soc Neprol 16: 2769-2777;
3) Ash S.R. (2005) Method of enhancing catheter patency using a citrate salt catheter lock solution. 米国特許出願US20050215978A1;
4) Ash S.R. (2000) Method of enhancing catheter patency using a citrate salt catheter lock solution. 国際特許WO 00/10385A1;及び
5) Opilla M. T., Kirby D.F. 及びEdmond M.B. (2007) Use of ethanol lock therapy to reduce the incidence of catheter-related bloodstream infections in home parenteral nutrition patients. JPEN J Parenter Enteral Nutr. 31:302-305 を参照のこと。
これら従来のロック溶液のほとんどは、長期間、例えば、内腔が使用されていない期間中、滞留することができる場合、CRBSIの軽減に関する有効性を示している。
2M HClの原液を、アメリカ合衆国15275ペンシルバニア州ピッツバーグのFisher Scientific社から購入した。下記の表1に示すように、0.001M〜2Mの様々なHCl濃度を有する100ミリリットル(100mL)溶液を、脱イオン水で調製した:
表1に示すHCl溶液を、水の代わりにミュラーヒントンブロスで調製した。それぞれの溶液のpHを測定し、MICの範囲検索のため、カンジダアルビカンス(C. albicans)、緑膿菌(P. aeruginosa)及び黄色ブドウ球菌(S. aureus)に対して試験した。微生物及びそのHClのMIC(括弧内に対応するpHを記す)は、以下の通りである:
C. albicans=0.08M〜0.1M HCl(pH2.07〜1.93)
P. aeruginosa=0.001M〜0.02M(pH7.33〜4.06)
S. aureus=0.02M〜0.04M(pH4.06〜3.12)
実験3:「死滅に要する時間」分析によって決定される、浮遊微生物に対するHClの抗菌作用
E. coli「EC」、K pneumoniae「KP」、S. aureus「SA」、バンコマイシン耐性E. faecalis「EF」、P. aeruginosa「PA」、A. baumanii「AB」及びC. albicans「CA」の予め形成したバイオフィルムを、ブロス、生理食塩水又は0.1M〜0.5M HCl含有溶液のいずれかに5〜60分暴露した。予め形成したバイオフィルムの根絶に要する時間を決定する手順は以下の通りである。滅菌14フレンチゲージ(Fr)二重内腔CARBOTHANE(登録商標)押出物(CARBOTHANE(登録商標)は、熱可塑性ポリカーボネートであり、アメリカ合衆国44092オハイオ州ウィックリフのLubrizol Advanced Materials社の登録商標である)から5mm断片を切り出した。48ウェルマイクロタイタープレート(微生物当たり1つ)において、1mLの細菌成長用トリプチケースソイブロス(TSB)又は酵母成長用麦芽酵母ブロス(YMB)のいずれかでウェルを満たす。次に、滅菌鉗子を用いて、1つのカテーテル断片をプレートの各ウェルに入れて、1ウェルずつ微生物を添加した。次いで、100rpm(1分当たりの回転数)で振盪しながら、37℃のインキュベーターで、24時間(hrs)プレートをインキュベートした。24時間後、カテーテル断片を培地から取り出し、TSB;YMB;生理食塩水;又は0.1M、0.2M、0.3M、0.4M又は0.5M HClのいずれかを1ml含む、別の48ウェルプレートに入れた。指定の時間で、断片を取り出し、各ウェルに1mlのD/Eブロス(デイエングレイ中和ブロス)を含む、別の48ウェルプレートに入れた。この48ウェルプレートを、適切な超音波浴に入れ、約50℃で20分間超音波処理した。適切な超音波浴の具体例としては、VWR 250HT(アメリカ合衆国19380ペンジルベニア州ウェストチェスターのVWR International社製)が挙げられる。一旦、超音波処理が完了したら、10μlの画分を取り出し、連続的にPBSで希釈した。10マイクロリットル(10μl)の各希釈液を、D/E中和寒天の表面に播種した。プレートを37℃で24時間インキュベートし、プレート当たりのコロニーの数を記録し、CFU/mLを決定した。図3に示すように、0.1M HClに暴露して30分以内に、全ての細菌バイオフィルムを根絶した。図4に示すように、0.4Mよりも高い濃度のHClにより、酵母バイオフィルムを1時間未満で根絶した。
15Fr、19センチメートル(cm)の血液透析カテーテルの動脈に連結する口(arterial port)を、YMB中の103CFUのC. albicansでロックした(プライマー量として生成物において特定された量で)。カテーテルを、滅菌袋の中で、37℃で24時間インキュベートした。その後、カテーテルを袋から取り出し、YMBを洗い流した。カテーテルをYMB又はHCl溶液のいずれかで再ロックした。30分のインキュベーション後、ロック溶液を取り出し、D/E寒天上に播種するために貯蔵した。カテーテルを断片に切り分け、5mLのD/Eブロスを含む15mLのコニカルチューブに移した。カテーテル断片を含むチューブを、20分間超音波処理した。ロック溶液及びカテーテル超音波処理液のそれぞれから、10μlを取り出し、連続的にPBSで希釈した。10μlの各希釈液を、D/E中和寒天の表面に播種した。プレートを反転し、37℃で24時間インキュベートした。次に、プレート当たりのコロニーの数を記録し、CFU/mLを決定した。
15Fr、19cmの血液透析カテーテルの動脈及び静脈に連結する口の両方とも、YMB又は0.5M HClのいずれかでロックした(各口でプライマー量として生成物において特定された量で)。105CFUのC. albicansで植菌された20mLのヒト血漿を含む、滅菌100mLメスシリンダー中に、カテーテルを37℃で24時間吊るした。24時間のインキュベーション中、血漿を撹拌し続け、カテーテルの先端が、シリンダーの底に接触するのを防止するように注意した。次に、ロック溶液を取り出し、連続的に希釈し、D/E寒天上に播種するために貯蔵した。カテーテルを断片に切り分け、5mLのD/Eブロスを含む、15mLのコニカルチューブに移した。カテーテル断片を含むチューブを20分間超音波処理した。ロック溶液及びカテーテル超音波処理液のそれぞれから、10μlを取り出し、連続的にPBSで希釈した。10μlの各希釈液を、D/E中和寒天の表面に播種した。プレートを反転し、37℃で24時間インキュベートした。次に、プレート当たりのコロニーの数を記録し、CFU/mLを決定した。
ヒト血漿の通常のpHは7.38〜7.42であり、7.38未満のpHは酸性が強すぎるし、7.42を超える血漿pHはアルカリ性が強すぎる(Atherton J.C.(2009) Acid-base balance: maintenance of plasma pH. Anaesthesia and Intensive Care Med.. 10:557-561)。一部又は全部の量のHClロックが不注意にも血流に投与された場合、局所pHがどのように影響を受けるかを決定するため、20mLの未凝固血清を、様々なHCl濃度を有する0、20、40、100μL溶液に補給し、pH測定に供した。
抗菌剤、スルファジアジン銀(SSD)及び5−フルオロウラシル(5FU)とのHClの相乗効果を決定するための別の実験では、カービーバウアー抗菌試験法(ディスク拡散抗菌感受性試験としても知られている)によって、ミュラーヒントン寒天において様々なHCl濃度の存在下で、各化合物の部分阻害濃度(FIC)を決定した。
Claims (10)
- カテーテル中のカテーテルロック溶液であって、
0.3モル濃度を有する塩酸溶液と抗菌剤とを含んでおり、
前記抗菌剤が5−フルオロウラシルを含み、かつ5−フルオロウラシルが、前記カテーテルから溶出され、前記カテーテルの表面近傍で16ppmの濃度となるように組み込まれている、前記カテーテルロック溶液。 - 前記抗菌剤が、スルファジアジン銀を含む、請求項1記載のカテーテル中のカテーテルロック溶液。
- 前記スルファジアジン銀が、カテーテルから溶出され、前記カテーテルの表面近傍で少なくとも128ppmの濃度となるように組み込まれている、請求項2記載のカテーテル中のカテーテルロック溶液。
- 抗菌剤が、リファンピン及びミノサイクリンを含む、請求項1〜3のいずれか1項記載のカテーテル中のカテーテルロック溶液。
- さらに、抗凝固剤を含む、請求項1〜4のいずれか1項記載のカテーテル中のカテーテルロック溶液。
- 前記抗凝固剤が、ヘパリンである、請求項5記載のカテーテル中のカテーテルロック溶液。
- 請求項1〜6のいずれか1項に記載の溶液で構成された、カテーテル中のカテーテルサルベージ溶液。
- カテーテルと0.3モル濃度を有する塩酸溶液と抗菌剤とを含むカテーテルキットであって、
前記抗菌剤が5−フルオロウラシルを含み、かつ5−フルオロウラシルが、前記カテーテルから溶出され、前記カテーテルの表面近傍で16ppmの濃度となるように組み込まれている、前記カテーテルキット。 - さらに、前記カテーテルの口に結合するように構成され、かつ前記塩酸溶液を含むシリンジを備えている、請求項8記載のカテーテルキット。
- さらに、抗凝固剤を含む、請求項8又は9記載のカテーテルキット。
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US12/849,665 US8951577B2 (en) | 2010-08-03 | 2010-08-03 | Antimicrobial hydrochloric acid catheter lock solution and method of use |
PCT/US2011/040119 WO2012018437A1 (en) | 2010-08-03 | 2011-06-13 | Antimicrobial hydrochloric acid catheter lock solution and method of use |
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RU2745617C2 (ru) | 2016-03-14 | 2021-03-29 | Сантен Фармасьютикал Ко., Лтд. | Антисептическое средство, включающее меглюмин или его соль |
EP3684436B1 (en) * | 2017-09-22 | 2024-11-27 | Becton, Dickinson and Company | 4% trisodium citrate solution for use as a catheter lock solution |
JP2024526885A (ja) * | 2021-07-19 | 2024-07-19 | ベクトン・ディキンソン・アンド・カンパニー | 抗菌性カテーテルロック溶液としての使用のための16%クエン酸ナトリウム溶液 |
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US5624704A (en) | 1995-04-24 | 1997-04-29 | Baylor College Of Medicine | Antimicrobial impregnated catheters and other medical implants and method for impregnating catheters and other medical implants with an antimicrobial agent |
US6527979B2 (en) * | 1999-08-27 | 2003-03-04 | Corazon Technologies, Inc. | Catheter systems and methods for their use in the treatment of calcified vascular occlusions |
WO2000010385A1 (en) | 1998-08-25 | 2000-03-02 | Ash Medical Systems, Inc. | Method of enhancing catheter patency using a citrate salt catheter lock solution |
US6350251B1 (en) | 2000-01-18 | 2002-02-26 | Biolink Corporation | Biocidal locks |
US6423050B1 (en) | 2000-06-16 | 2002-07-23 | Zbylut J. Twardowski | Method and apparatus for locking of central-vein catheters |
JP5143982B2 (ja) | 2001-05-08 | 2013-02-13 | エヌディー パートナーズ,リミティド ライアビリティー カンパニー | 殺生物剤ロック |
US20050215978A1 (en) | 2001-05-25 | 2005-09-29 | Ash Stephen R | Method of enhancing catheter patency using a citrate salt catheter lock solution |
ITMI20011702A1 (it) | 2001-08-03 | 2003-02-03 | Acraf | Soluzione disinfettante a base di ipoclorito di sodio e procedimento per prepararla |
DK1509256T3 (da) | 2002-05-24 | 2009-11-23 | Angiotech Int Ag | Præparater og fremgangsmåde til coating af medicinske implantater |
WO2004077954A1 (en) | 2003-03-05 | 2004-09-16 | Byocoat Enterprises, Inc., | Antimicrobial solution and process |
US7601731B2 (en) | 2003-06-06 | 2009-10-13 | Board Of Regents, The University Of Texas System | Antimicrobial flush solutions |
US7696182B2 (en) * | 2004-11-02 | 2010-04-13 | Nd Partners, Llc | Antimicrobial locking solutions comprising taurinamide derivatives and biologically acceptable salts and acids, with the addition of small concentrations of heparin |
US9259006B2 (en) * | 2008-01-30 | 2016-02-16 | Smartwash Solutions, Llc | Antimicrobial compositions and methods of use thereof |
JP5286897B2 (ja) | 2008-04-08 | 2013-09-11 | 株式会社ジェイ・エム・エス | 弱酸性でも安定なヘパリンカテーテルロック溶液 |
WO2010088192A1 (en) | 2009-01-27 | 2010-08-05 | Telelflex Medical Incorporated | Bacteriostatic catheter lock containing glycerol |
JP5412857B2 (ja) | 2009-02-03 | 2014-02-12 | 株式会社ジェイ・エム・エス | 静菌効果を有するカテーテルロック液と該カテーテルロック液の調製方法 |
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WO2012018437A1 (en) | 2012-02-09 |
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US20160242420A1 (en) | 2016-08-25 |
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US20150151025A1 (en) | 2015-06-04 |
JP2013540695A (ja) | 2013-11-07 |
CA2999605A1 (en) | 2012-02-09 |
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US20120034319A1 (en) | 2012-02-09 |
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