JP6426625B2 - 抗血栓性医療材料、および該医療材料を利用した医療用具 - Google Patents
抗血栓性医療材料、および該医療材料を利用した医療用具 Download PDFInfo
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- JP6426625B2 JP6426625B2 JP2015554841A JP2015554841A JP6426625B2 JP 6426625 B2 JP6426625 B2 JP 6426625B2 JP 2015554841 A JP2015554841 A JP 2015554841A JP 2015554841 A JP2015554841 A JP 2015554841A JP 6426625 B2 JP6426625 B2 JP 6426625B2
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- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 230000008102 immune modulation Effects 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- QRWZCJXEAOZAAW-UHFFFAOYSA-N n,n,2-trimethylprop-2-enamide Chemical compound CN(C)C(=O)C(C)=C QRWZCJXEAOZAAW-UHFFFAOYSA-N 0.000 description 1
- JMCVCHBBHPFWBF-UHFFFAOYSA-N n,n-diethyl-2-methylprop-2-enamide Chemical compound CCN(CC)C(=O)C(C)=C JMCVCHBBHPFWBF-UHFFFAOYSA-N 0.000 description 1
- OVHHHVAVHBHXAK-UHFFFAOYSA-N n,n-diethylprop-2-enamide Chemical compound CCN(CC)C(=O)C=C OVHHHVAVHBHXAK-UHFFFAOYSA-N 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- RFGFCICNGCPXQJ-UHFFFAOYSA-N n-prop-1-en-2-ylacetamide Chemical compound CC(=C)NC(C)=O RFGFCICNGCPXQJ-UHFFFAOYSA-N 0.000 description 1
- 210000004789 organ system Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 210000003516 pericardium Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- 125000006233 propoxy propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])OC([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61L33/00—Antithrombogenic treatment of surgical articles, e.g. sutures, catheters, prostheses, or of articles for the manipulation or conditioning of blood; Materials for such treatment
- A61L33/06—Use of macromolecular materials
- A61L33/064—Use of macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/08—Materials for coatings
- A61L29/085—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Materials For Medical Uses (AREA)
Description
(1)下記式(1):
(2) 前記共重合体の全構成単位中、前記繰り返し単位(A)が2.5〜17.0モル%である、(1)に記載の医療材料。
(3) 前記式(1)中、R11が水素原子である、(1)または(2)に記載の医療材料。
(4) 前記共重合体が、2.5〜17.0モル%の前記繰り返し単位(A)、および83.0〜97.5モル%の前記繰り返し単位(B)(前記繰り返し単位(A)、および前記繰り返し単位(B)の合計量は100モル%である)で構成される、(1)〜(3)のいずれか1つに記載の医療材料。
(5) 基材と、前記基材表面に、(1)〜(4)のいずれか1つに記載の医療材料を含むコート層と、を有する医療用具。
本発明に係る医療材料が含む共重合体は、繰り返し単位(A)を形成するモノマー(以下、「モノマーa」とも称する。)と、繰り返し単位(B)を形成するモノマー(以下、「モノマーb」とも称する。)との重合反応によって得ることができる。
本発明の一実施形態では、上記医療材料を用いた医療用具が提供される。すなわち、本発明の一実施形態は、基材と、前記基材表面に、上記医療材料を含むコート層と、を有する医療用具が提供される。
本発明の医療用具は、上記の医療材料を基材表面に有する。基材の材質としては、特に制限されず、例えば、ポリエチレン、ポリプロピレン、エチレン−α−オレフィン共重合体等のポリオレフィンや変性ポリオレフィン;ポリアミド;ポリイミド;ポリウレタン;ポリエチレンテレフタレート(PET)、ポリブチレンテレフタレート(PBT)、ポリシクロヘキサンテレフタレート、ポリエチレン−2,6−ナフタレート等のポリエステル;ポリ塩化ビニル;ポリ塩化ビニリデン(PVDC);ポリカーボネート;ポリテトラフルオロエチレン(PTFE)、エチレン−テトラフルオロエチレン共重合体(ETFE)等のフッ素樹脂等の各種高分子材料、SUS等の金属、セラミック、カーボン、およびこれらの複合材料等が例示できる。
本発明に係る医療用具においては、上記医療材料を含むコート層が、基材表面に形成される。
アクリル酸メトキシエチル(MEA)5g(38.4mmol)とN−ビニルアセトアミド(NVA)0.055g(0.6mmol)とをメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
MEA 5g(38.4mmol)とNVA 0.11g(1.3mmol)とをメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
MEA 5g(38.4mmol)とNVA 0.22g(2.6mmol)とをメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
MEA 5g(38.4mmol)とNVA 0.58g(6.8mmol)とをメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
MEA 5g(38.4mmol)とNVA 0.80g(9.4mmol)とをメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
MEA 5g(38.4mmol)をメタノール25.5gに溶解し、四口フラスコに入れ、50℃でN2バブリングを1時間行った。
実施例または比較例で得られた、上記共重合体または上記重合体をそれぞれ0.1gずつ量り採り、それぞれ別のガラス製試験管に入れた。
(コーティング剤の調製)
実施例または比較例で得られた、上記共重合体または上記重合体それぞれについて、0.5重量%のメタノール溶液を調製し、コーティング剤とした。
全長30cm×内径8mmの軟質塩化ビニルチューブ(チューブ1)の両端にそれぞれ、全長5cm×内径6mm×外径9mmの軟質塩化ビニルチューブ(チューブ2)の端部1cmを挿入し、段差チューブを作製した。
血栓が形成されやすい過酷な条件における医療材料の抗血栓性を評価するため、コート層を形成した上記段差チューブを用いて、以下のような試験系を構築した。
上記実施例3で得られた重合体(3)、および比較例1で得られた比較重合体(1)をコートした基材について、下記方法に従って、抗血栓性を評価した。
重合体(3)、および比較重合体(1)をそれぞれ、0.2重量%の濃度で、水−アルコール(メタノール)混合溶液に溶解させ、コーティング剤とした。
上記コーティング剤を、模擬製品形態(血液循環モジュール:特開平11−114056号公報に開示された実施例1に係る血液外部灌流型中空糸膜人工肺を、特開2009−219936号公報の図4に開示された構造を有する人工肺としたもの;血液循環経路を構成する基材として、ポリプロピレン、ポリウレタン、ポリカーボネート、SUSを含む)に血液インポート側から充填し、120秒間静置した後に除去し、室温(25℃)で240分間、送風乾燥した。
上記血液循環モジュールを接続チューブ(軟質塩化ビニル製、全長約100cm×内径8mm)を用いて貯血槽と接続することによって体外循環回路中に組み込んだ。続いて、乳酸リンゲル液200mlを上記体外循環回路に充填し、その後、ヘパリン添加ヒト新鮮血200mlを添加した。循環血液中のへパリン濃度は、0.5単位/mlとした。室温(25℃)、500ml/minで6時間循環させた。循環開始から120分後に、それぞれの血液循環回路から血液をサンプリングし、血液凝固系の活性化指標であるトロンビンアンチトロンビン複合体(TAT)の濃度を測定した。TAT濃度は、EIA法による測定キットを用いた。高いTAT濃度は、凝固活性化状態にあることを示し、血栓が生じやすいといえる。
2 チューブ2、
3 段差面、
4 血栓。
Claims (4)
- 下記式(1):
で示される繰り返し単位(A)と、
下記式(2):
で示される繰り返し単位(B)とを有する共重合体を含み、前記共重合体の全構成単位中、前記繰り返し単位(A)が2.5〜17.0モル%である、医療材料。 - 前記式(1)中、R11が水素原子である、請求項1に記載の医療材料。
- 前記共重合体が、2.5〜17.0モル%の前記繰り返し単位(A)、および83.0〜97.5モル%の前記繰り返し単位(B)(前記繰り返し単位(A)、および前記繰り返し単位(B)の合計量は100モル%である)で構成される、請求項1または2に記載の医療材料。
- 基材と、
前記基材表面に、請求項1〜3のいずれか1項に記載の医療材料を含むコート層と、を有する医療用具。
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