JP5521237B2 - 親水性コーティング - Google Patents
親水性コーティング Download PDFInfo
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- JP5521237B2 JP5521237B2 JP2010550200A JP2010550200A JP5521237B2 JP 5521237 B2 JP5521237 B2 JP 5521237B2 JP 2010550200 A JP2010550200 A JP 2010550200A JP 2010550200 A JP2010550200 A JP 2010550200A JP 5521237 B2 JP5521237 B2 JP 5521237B2
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- coating
- hydrophilic
- coating formulation
- hydrophilic coating
- polymer
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- 238000001802 infusion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229920000847 nonoxynol Polymers 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 125000005496 phosphonium group Chemical group 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
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- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 229920005604 random copolymer Polymers 0.000 description 1
- 239000001062 red colorant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008458 response to injury Effects 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NRHMKIHPTBHXPF-TUJRSCDTSA-M sodium cholate Chemical compound [Na+].C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC([O-])=O)C)[C@@]2(C)[C@@H](O)C1 NRHMKIHPTBHXPF-TUJRSCDTSA-M 0.000 description 1
- KSAVQLQVUXSOCR-UHFFFAOYSA-M sodium lauroyl sarcosinate Chemical compound [Na+].CCCCCCCCCCCC(=O)N(C)CC([O-])=O KSAVQLQVUXSOCR-UHFFFAOYSA-M 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000000626 sulfinic acid group Chemical group 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000008791 toxic response Effects 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/08—Materials for coatings
- A61L29/085—Macromolecular materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
- C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
- C08G65/3322—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof acyclic
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- C08G65/32—Polymers modified by chemical after-treatment
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- A61L2400/00—Materials characterised by their function or physical properties
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- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/02—Methods for coating medical devices
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- A61L2420/00—Materials or methods for coatings medical devices
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- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/28—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type
- C08G2650/50—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type containing nitrogen, e.g. polyetheramines or Jeffamines(r)
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- C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C08L39/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
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Description
(a)式(1)
(式中、Gは、少なくともn個の官能基を有する多官能化合物の残基であり、各R1および各R2は独立して水素、または場合により1つもしくはそれ以上のヘテロ原子を含有してもよい置換および非置換の炭化水素から選択される基、好ましくは水素、またはC1〜C20炭化水素、より好ましくは水素、またはC1〜C20のアルキルを表し、nは、少なくとも2、好ましくは2〜100、より好ましくは2〜8、特に2または3の値を有する整数である)
で示される少なくとも1種の多官能重合性化合物
(b)少なくとも1種のノリッシュI型光開始剤、および
(c)少なくとも1種のノリッシュII型光開始剤
を含む親水性コーティング調製用コーティング配合物を使用することによって得られることがわかった。
−本発明のコーティング配合物を基材の少なくとも1つの表面に塗布し、
−そして、コーティング配合物を、電磁放射線に暴露し、それにより開始剤を活性化させることによって配合物を硬化させる
ことにより形成できることが好ましい。
下塗り配合物は以下に示すように調製した。
乾燥不活性ガス雰囲気下で、トルエンジイソシアネート(TDIまたはT、Aldrich、純度95%、87.1g、0.5mol)、Irganox1035(Ciba Specialty Chemicals、0.58g、ヒドロキシエチルアクリレート(HEAまたはH)に対して1重量%)、およびスズ(II)2−エチルヘキサノエイト(Sigma、純度95%、0.2g、0.5mol)を1リットルのフラスコに入れ、30分間撹拌した。この反応混合物を氷浴を使用して0℃に冷却した。HEA(Ardrich、純度96%、58.1g、0.5mol)を30分かけて滴下し、その後、氷浴を除去し、混合物を室温に戻した。3時間後、反応が完了した。ポリ(2−メチル−1,4−ブタンジオール)−alt−ポリ(テトラメチレングリコール)(PTGL、保土谷化学工業株式会社、Mn=1000g/mol、250g、0.25mol)を30分かけて滴下した。その後、反応混合物を60℃に加熱し、18時間加熱した。その時点で、GPC(HEAが完全に消費されたことを示す)、IR(NCOに関係するバンドが現れない)およびNCO滴定(NCO含有率が0.02重量%未満)が示すように、反応が完了した。
式(1)で示される多官能重合性化合物(a)、ノリッシュI型光開始剤(b)(Irgacure2959)、およびノリッシュII型光開始剤(c)(ベンゾフェノン)を含む親水性コーティング配合物を調製した。
比較のために、ノリッシュII型光開始剤を使用せずに親水性コーティング配合物Aを調製した。
比較実験B用として、ノリッシュII型光開始剤(c)を使用せず、かつ式(1)と異なる官能重合性化合物を使用してコーティング配合物を調製した。
20g(13.3mmol)の(ポリエチレングリコール)ビス(3−アミノプロピル)末端(PEG1500−ジアミン、Mn=1500g/mol、Aldrich、34901−14−9)を、窒素下、400mLのトルエン中で共沸蒸留し、約100mLのトルエンを除去した。溶液を窒素下、室温で冷却し、その後、氷浴中で冷却した。50mLのジクロロメタン(Merck)を加えた。4.04g(39.7mmol)のトリエチルアミンを滴下し、その後、3.48g(39.7mmol)のアクリロイルクロライド(さらなる精製をせずに用いた)を滴下した。窒素下で終夜、反応させた。溶液を氷浴中で冷却し、NEt3.HCl塩を沈殿させ、その後、ろ過した。1重量%のIrganox1035を加えた後、真空下でろ液を濃縮させた。濃縮物を75mLのジクロロメタン中に再溶解し、その後、氷で冷やした1.5Lのジエチルエーテル中で沈殿させた。ろ過後、ジエチルエーテルで洗浄して、生成物を捕集した。
1H−NMR(CDCl3、22℃)δ(TMS)=6.7ppm(2H
、−NH−);6.2&6.1ppm(4H、CH2=CH−);5.6ppm(2H、CH2=CH−);3.6ppm(164H、−O−CH2−CH2−および−O−CH2−CH2−CH2−);1.8ppm(4H、−O−CH2−CH2−CH2−)
150g(75mmolのOH)のポリエチレングリコール(PEG4000、Flukaより入手のBiochemika Ultra、OH価28.02mgKOH/g、499.5mew/kg、Mn=4004g/mol)を窒素雰囲気下、45℃で350mlの乾燥トルエンに溶解した。ラジカル安定剤として、0.2g(0.15重量%)のIrganox1035を加えた。得られた溶液を終夜、共沸蒸留し(50℃、70mbar)、4オングストロームのモルシーブにより濃縮トルエンを得た。PEGのバッチ毎に、OH滴定によりOH価を正確に測定した(European Pharmacopoeiaの第4版、パラグラフ2.5.3、Hydroxyl Value、105ページに記載の方法にしたがって測定した)。これにより、塩化アクリロイルの添加量を計算でき、反応過程におけるアクリレートへのエステル化の程度を決定することができる。9.1g(90mmol)のトリエチルアミンを反応混合物に加え、続いて、50mlのトルエンに溶解した塩化アクリロイル8.15g(90mmol)を1時間かけて滴下した。トリエチルアミンおよび塩化アクリロイルは無色の液体であった。反応混合物を窒素雰囲気下、45℃で2〜4時間撹拌した。反応中、温度を45℃に維持し、PEGの結晶化を防いだ。転化率を求めるために、反応混合物からサンプルを取り出し、乾燥させ、重水素化クロロホルムに溶解した。トリフルオロ無水酢酸(TFAA)を加え、1H−NMRスペクトルを記録した。TFAAは残留するいかなる水酸基とも反応してトリフルオロ酢酸エステルを生成し、それは1H−NMR分光法を使用して容易に検出することができる(トリフルオロ酢酸基のα位にあるメチレンプロトンによる3重シグナル(g、4.45ppm)は、アクリレートエステルのα位にあるメチレン基のシグナル(d、4.3ppm)とは明確に区別することができる)。アクリレートへのエステル化の程度が98%未満では、追加の塩化アクリロイルおよびトリエチルアミン10mmolを反応混合物に加え、1時間反応させた。アクリレートへのエステル化の程度が98%を超えたなら、暖かい溶液をろ過してトリエチルアミン塩酸塩を除去した。約300mlのトルエンを真空下(50℃、20mbar)で除去した。加熱滴下漏斗内に残留している溶液を45℃に維持し、1リットルのジエチルエーテル(氷浴で冷却されている)を滴下した。このエーテル懸濁物を1時間冷却した後、ろ過によりPEG4000DAを得た。生成物を減圧空気環境下(300mbar)、室温で終夜乾燥させた。収率:白色結晶として80〜90%。
10gのコンゴレッドを秤量し、メスフラスコ中で1Lのmilli−Q精製水に溶解した。得られた1重量%のコンゴレッド溶液を、下塗り済みPebaxTMカテーテルシャフト上の親水性コーティングの着色に使用した。この溶液中に30分間、コーティングしたカテーテルシャフトに浸漬した。コーティングしたカテーテルシャフトを15分間空気乾燥させた。精製水に再度浸漬して、過剰のコンゴレッドを除去した。ここで、コーティングしたカテーテルシャフトが粘着性を示さなくなる程度にまで、再度空気乾燥させた(約1時間)。コンゴレッドで着色したコーティングが施されたカテーテルシャフトに、以下に示す摩耗試験を行った。
10N KAP−Zロードセルを具備したZwick1474 ZmartPro引張試験機により、粒子放出摩耗試験を行った(以下、「Zwick引張試験機」という。図1参照)。次の材料および手順を用いた。
−各コーティング済みカテーテルシャフト内の補強芯線として、950mmの、0.022インチ(0.56mm)Nitinol SE金属製ガイドワイヤ(直径0.0022インチ、New England Precision Griding)。
−摩耗試験用の外側相手表面として、Medtronic Pro−Flo 6Fピッグテール 2.00mm、110cm、心臓血管造影用カテーテル(以下、「Pro−Floガイドカテーテル」、または、図1において、「Pro−Floガイドカテーテル」という)の上端部分625mm。近位端のコネクターを注射器の取り付けに使用した。
−milli−Q水60ml。
−Zwick1474 ZmartPro引張試験機内で外側カテーテルを支持する型。型はφ40mmで180℃湾曲している。
−150mmの上記コーティング済みカテーテルシャフト(図1中、「着色CVカテーテルシャフト」)。
上記の粒子放出摩耗試験の後、Pro−Floガイドカテーテルの一方の側を型から外し、Pro−Floガイドカテーテルからのmilli−Q水を捕集する瓶の上方に配置した。10mlのmilli−Q水を含む注射器を、Pro−Floガイドカテーテルのカテーテル挿入部に装着し、Pro−Floガイドカテーテルにフラッシュした。Nitinolガイドワイヤと、装着したコーティング済みカテーテルシャフトを取り除き、10mlのmilli−Q水でフラッシュした。Pro−Floガイドカテーテルを10mlのmilli−Q水で4回フラッシュした。捕集された60mlのmilli−Q水を粒子測定(下記参照)に供し、一方、Pro−Floガイドカテーテルは、着色した粒子による汚染をさらに目視でチェックするために乾燥させた。粒子はなかった。
CC−12 Soft Imaging Systemを備えたLEICA MA FLIIIを使用して顕微鏡像を記録した。光ガイドを顕微鏡に固定した状態で、LEICA CLS 150Xにより、180°後方散乱モードでろ紙に光を当てた。上側のスイッチを4の値にセットし、下側を6の位置にセットした。10倍の接眼レンズを使用し、ズーム率は5とした。ホワイトバランスは白紙を用いて自動にセットした。1回の撮影当たりの照明時間は3.900msにセットした。それぞれ2.71×2.12mm、すなわち5.7mm2の領域を表す、全部で9枚の写真によりフィルターを部分的に画像化した。9個の領域を有する格子を描いた1枚の紙をフィルターの下に置き、これにより各領域の像を記録することが可能になった。フィルターの全表面は1020mm2である。全フィルターに対する補正係数は1020/(9×5.75)=20である。
画像解析は次の工程を含んだ。
−バックグラウンド減算
−対象物の解析
−データの可視化
バックグラウンド減算に使用したMathematicaコード。
fMain=Import[“D:\\image.jpg”];
fTotal=fMain;{n1,n2,n3}=Dimensions[fMain[[1,1]]];
nx=n1;ny=n2;
(*−−Fit of Red background−−*)
tabelRed=Table[fMain[[1,1,x,y,1]],{x,nx},{y,ny}];
(*−−−Generate table t.b.v. “Fit”. *)
tabelFit=Flatten[Table[{x,y,tabelRed[[x,y]]},{x,nx},{y,ny}],1];
(*−−−Fit,calculate parameters.*)
opl=Fit[tabelFit,{1,x,x^2,y,y^2},{x,y}];
r0=opl[[1]];{r1,r2,r3,r4}=Table[opl[[i,1]],{i,2,5}];
Print[“pLijst=”,{r0,r1,r2,r3,r4}];
tabelRed=.
tabelFit=.
fTotal[[1,1]]=Table[{Abs[(fMain[[1,1,i,j,3]]−(r0+r1*i+r2*i^2+r3*j+r4*j^2)−10)*2−40],0,0},{i,n1},{j,n2}];
Export[“D:\\BackgroundRSubtracted.jpg”,fTotal,“JPEG”];
fTotal=.
fMain=.
opl=.
フィルター上の粒子を解析した。全ての方向で10ミクロンより小さい粒子は、USP28にしたがって無視した。少なくとも1つの方向で10ミクロンより大きい粒子を計数し、USP28標準に関係付けた。粒子が硬い球体であるとして、粒子表面から粒子体積を求めた。カテーテルのコーティングの厚さが2ミクロンであることを考慮した。
基準:
−粒子>10ミクロン(粒子体積500μm3〜8000μm3):1回の放出試験当たり(=1フィルター当たり)3000個未満。
−粒子>25ミクロン(粒子体積>8000μm3):1回の放出試験当たり(=1フィルター当たり)300個未満。
カテーテルシャフト上の親水性コーティング1、AおよびBを全て上記の粒子放出摩耗試験に供した。コーティングの粒子放出を表4に示す。
Claims (14)
- 親水性コーティング調製用コーティング配合物であって、親水性コーティング配合物が、
(a)式(1)
(式中、Gは、ポリエーテル、ポリエステル、ポリウレタン、ポリエポキシド、ポリアミド、ポリ(メタ)アクリルアミド、ポリオキサゾリドン、ポリビニルアルコール、ポリエチレンイミン、ポリペプチド、およびポリサッカライド、ならびに、上記のものの任意の組み合わせからなる群より選択される、少なくともn個の官能基を有する多官能化合物の残基であり、R1=Hで、かつR2=H、またはR1がCH3で、かつR2=Hであり、nは、少なくとも2の値を有する整数である)
で示される少なくとも1種の多官能重合性化合物、
(b)少なくとも1種のノリッシュI型光開始剤、および
(c)少なくとも1種のノリッシュII型光開始剤
を含むコーティング配合物。 - ノリッシュI型光開始剤が、ベンゾイン誘導体、メチロールべンゾインおよび4−ベンゾイル−1,3−ジオキソラン誘導体、ベンジルケタール、α,α−ジアルコキシアセトフェノン、α−ヒドロキシアルキルフェノン、α−アミノアルキルフェノン、アシルホスフィンオキシド、ビスアシルホスフィンオキシド、硫化アシルホスフィン、並びにハロゲン化アセトフェノン誘導体からなる群より選択される請求項1に記載のコーティング配合物。
- ノリッシュII型光開始剤が、ベンゾフェノンなどの芳香族ケトン類、キサントン、ベンゾフェノン誘導体(例えば、クロロベンゾフェノンなど)、ベンゾフェノンおよびベンゾフェノン誘導体のブレンド物(例えば、Photocure 81、4−メチル−ベンゾフェノンおよびベンゾフェノンの50/50ブレンド物など)、ミヒラーケトン、エチルミヒラーケトン、チオキサントンおよびQuantacure ITX(イソプロピルチオキサントン)などの他のキサントン誘導体、ベンジル、アントラキノン(例えば、2−エチルアントラキノンなど)、クマリン、またはこれらの光開始剤の組み合わせからなる群より選択される請求項1または請求項2に記載のコーティング配合物。
- 式(1)で示される多官能重合性化合物は、500g/mol以上の数平均分子量(Mn)、および/または2000g/mol以下の数平均分子量(Mn)を有する請求項1〜3のいずれか一項に記載のコーティング配合物。
- Gは、少なくとも1つのヘテロ原子を含む請求項1〜4のいずれか一項に記載のコーティング配合物。
- Gは、少なくとも1種のポリエチレングリコールまたはポリプロピレングリコールブロックを含むポリマーである請求項1〜5のいずれか一項に記載のコーティング配合物。
- 例えばポリビニルピロリドン(PVP)などのポリ(ラクタム)、ポリウレタン、アクリル酸およびメタクリル酸のホモポリマーおよびコポリマー、ポリビニルアルコール、ポリビニルエーテル、無水マレイン酸をベースとしたコポリマー、ポリエステル、ビニルアミン、ポリエチレンイミン、ポリエチレンオキシド、ポリ(カルボン酸)、ポリアミド、ポリアンヒドライド、ポリホスファゼン、例えばメチルセルロース、カルボキシメチルセルロース、ヒドロキシメチルセルロース、およびヒドロキシプロピルセルロースなどのセルロース類、ヘパリン、デキストラン、例えばコラーゲン、フィブリンおよびエラスチンなどのポリペプチド、例えばキトサン、ヒアルロン酸、アルギン酸塩、ゼラチンおよびキチンなどのポリサッカライド、例えばポリラクチド、ポリグリコリドおよびポリカプロラクトンなどのポリエステル、例えばコラーゲン、アルブミン、オリゴペプチド、ポリペプチド、短鎖ペプチドなどのポリペプチド、タンパク質、並びにオリゴヌクレオチドからなる群より選択される非イオン性親水性ポリマーをさらに含む請求項1〜6のいずれか一項に記載のコーティング配合物。
- 親水性ポリマーおよび/または高分子電解質をさらに含み、親水性ポリマーおよび高分子電解質と多官能重合性化合物との重量比が50:50〜95:5である請求項1〜7のいずれか一項に記載のコーティング配合物。
- 請求項1〜8のいずれか一項に記載の親水性コーティング配合物を硬化させることによって得られる親水性コーティング。
- 請求項9に記載の親水性コーティングに濡れ性流体を適用することによって得られる潤滑性コーティング。
- 粒子放出摩耗試験による測定で、10μmより大きな粒子が3000個未満である耐摩耗性を有する請求項10に記載の潤滑性コーティング。
- 請求項10〜11のいずれか一項に記載の少なくとも1つの親水性コーティングまたは潤滑性コーティングを含む物品。
- カテーテル、ガイドワイヤ、ステント、注射器、金属およびプラスチックインプラント、コンタクトレンズおよび医療用チューブなどの医療用器具または部品である請求項12に記載の物品。
- 基材に親水性コーティングを形成する方法であって、
−請求項1〜8のいずれか一項に記載のコーティング配合物を、基材の少なくとも1つの表面に塗布する工程
−および、コーティング配合物を、電磁放射線に暴露し、それにより開始剤を活性化させることによって硬化させる工程
を含む方法。
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- 2009-03-12 ES ES09718754.6T patent/ES2608823T3/es active Active
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ES2608823T3 (es) | 2017-04-17 |
JP2011513566A (ja) | 2011-04-28 |
DK2252661T3 (en) | 2017-01-16 |
BRPI0909064A2 (pt) | 2019-02-26 |
CN101970583A (zh) | 2011-02-09 |
US20110059874A1 (en) | 2011-03-10 |
WO2009112548A1 (en) | 2009-09-17 |
MX2010009982A (es) | 2010-09-30 |
CN101970583B (zh) | 2012-11-28 |
US20150352259A1 (en) | 2015-12-10 |
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