WO2023276847A1 - 長尺状医療機器、および、長尺状医療機器の製造方法 - Google Patents
長尺状医療機器、および、長尺状医療機器の製造方法 Download PDFInfo
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- WO2023276847A1 WO2023276847A1 PCT/JP2022/025084 JP2022025084W WO2023276847A1 WO 2023276847 A1 WO2023276847 A1 WO 2023276847A1 JP 2022025084 W JP2022025084 W JP 2022025084W WO 2023276847 A1 WO2023276847 A1 WO 2023276847A1
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- medical device
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- elongated medical
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- copolymer
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- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- WMAFNLQQGPUKCM-UHFFFAOYSA-N ethoxymethyl 2-methylprop-2-enoate Chemical compound CCOCOC(=O)C(C)=C WMAFNLQQGPUKCM-UHFFFAOYSA-N 0.000 description 1
- SZPUDSQPVUIVKC-UHFFFAOYSA-N ethoxymethyl prop-2-enoate Chemical compound CCOCOC(=O)C=C SZPUDSQPVUIVKC-UHFFFAOYSA-N 0.000 description 1
- OYQYHJRSHHYEIG-UHFFFAOYSA-N ethyl carbamate;urea Chemical compound NC(N)=O.CCOC(N)=O OYQYHJRSHHYEIG-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- VGEWEGHHYWGXGG-UHFFFAOYSA-N ethyl n-hydroxycarbamate Chemical compound CCOC(=O)NO VGEWEGHHYWGXGG-UHFFFAOYSA-N 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- LVQPBIMCRZQQBC-UHFFFAOYSA-N methoxymethyl 2-methylprop-2-enoate Chemical compound COCOC(=O)C(C)=C LVQPBIMCRZQQBC-UHFFFAOYSA-N 0.000 description 1
- SINFYWWJOCXYFD-UHFFFAOYSA-N methoxymethyl prop-2-enoate Chemical compound COCOC(=O)C=C SINFYWWJOCXYFD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 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
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 1
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 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
- 238000001179 sorption measurement Methods 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical group C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 150000003952 β-lactams Chemical class 0.000 description 1
- 150000003954 δ-lactams Chemical class 0.000 description 1
- 150000003955 ε-lactams Chemical class 0.000 description 1
Images
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
- 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
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
-
- 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
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/10—Materials for lubricating medical devices
-
- 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
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/02—Methods for coating medical devices
Definitions
- the present disclosure relates to coated elongated medical devices and methods of manufacturing elongated medical devices.
- a long medical device such as a catheter or a guide wire that is used by being inserted into a living body is coated with a hydrophilic coating agent in order to give lubricity to the surface of the long medical device.
- Elongated medical devices are known.
- a hydrophilic polymer having a hydrophilic monomer and a reactive functional group such as an epoxy group is used to form a hydrophilic epoxy resin film on a medical device.
- a thin film primer containing a functional group is formed on a substrate, and the functional group of the thin film primer is reacted with a hydrophilic compound to immobilize the hydrophilic compound on the substrate.
- a guidewire is disclosed.
- an elongated medical device is provided.
- This elongated medical device has a film formed on the surface of a substrate, and the film is a copolymer containing polymerized units having a hydrophilic structure represented by any of the following formulas (1) to (3). It is composed of a polymer material crosslinked by the structure shown in .
- R 1 represents a hydrogen atom, a linear alkyl group having 1 or more carbon atoms, or a branched alkyl group having 1 or more carbon atoms.
- R 2 is an alkylene group having 1 or more carbon atoms, a divalent alicyclic hydrocarbon group containing an alicyclic structure having 3 or more carbon atoms, or a divalent aromatic group containing an aromatic ring structure having 6 or more carbon atoms.
- the alkylene group, the alicyclic hydrocarbon group, and the aromatic group are represented by —NR 3 — (R 3 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms) between carbon atoms. It may have a divalent group.)
- the coating formed on the surface of the elongated medical device can be improved in adhesion to the substrate and in hydrophilicity.
- the hydrophilic structure may be neutral in charge. With such a configuration, the biocompatibility of the coating of the elongated medical device can be enhanced.
- the hydrophilic structure includes at least one structure selected from the group consisting of a betaine structure, an amide structure, a lactam structure, and a polyalkylene oxide structure. good too. With such a configuration, it is possible to obtain an elongated medical device having a charge-neutral hydrophilic film.
- the hydrophilic structure includes at least one of a betaine structure having a quaternary ammonium as a positively charged functional group and an amide structure having a tertiary ammonium. may be included.
- a coating agent comprising a copolymer containing a polymerized unit having a hydrophilic structure
- tertiary ammonium or quaternary ammonium is added to the coating. It can act as a catalyst for reactions involving cross-linking of agents.
- the base material contains at least one of a metal, a polymer material having a group capable of forming a hydrogen bond, and polyurethane on the surface of the base material.
- the elongated medical device may be a guide wire or a catheter. With such a configuration, a guide wire or catheter having a coating with high adhesion to the base material and sufficient hydrophilicity can be obtained.
- the present disclosure can be embodied in various forms other than those described above, and can be embodied in the form of, for example, a method for manufacturing an elongated medical device.
- crosslinked Explanatory drawing which shows the principle which a hydrophilic film adheres on a metal base material. Explanatory drawing which shows the principle which a hydrophilic film adheres on a urethane base material. Explanatory drawing which shows the result of a cross-cut test. Explanatory drawing which shows the evaluation result of adhesiveness. Explanatory drawing which shows the time-dependent viscosity change of a coating agent.
- a hydrophilic film is formed on the surface of the substrate.
- the coating included in the elongated medical device of this embodiment will be described.
- the coating provided in the elongated medical device of the present embodiment is a copolymer containing polymerized units having a hydrophilic structure crosslinked by a structure represented by any one of the following formulas (1) to (3). Constructed of polymer material.
- R 1 which may be the same or different, represents a hydrogen atom, a linear alkyl group having 1 or more carbon atoms, or a branched alkyl group having 1 or more carbon atoms. More specifically, R 1 in each of the above formulas (1) to (3) may each independently be a hydrogen atom or an alkyl group having 1 or more carbon atoms. Although the number of carbon atoms in the alkyl group is not limited, it is preferably 1 to 4, for example.
- R 2 is an alkylene group having 1 or more carbon atoms, a divalent alicyclic hydrocarbon group containing an alicyclic structure having 3 or more carbon atoms, or a divalent aromatic group containing an aromatic ring structure having 6 or more carbon atoms.
- the alkylene group, alicyclic hydrocarbon group and aromatic group are represented by —NR 3 — (R 3 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms) between carbon atoms It may have a divalent group.
- the alkylene group preferably has 1 to 5 carbon atoms.
- the alicyclic structure preferably has 3 to 6 carbon atoms, and the alicyclic hydrocarbon group preferably has 3 to 12 carbon atoms.
- the aromatic ring structure preferably has 6 to 10 carbon atoms, and the aromatic group preferably has 6 to 20 carbon atoms.
- the number of —NR 3 — which may be present between the carbon atoms of each of the alkylene group, alicyclic hydrocarbon group and aromatic group is preferably 1 or 2.
- R 2 is preferably an alkylene group having 1 to 6 carbon atoms, particularly preferably an alkylene group having 4 to 6 carbon atoms.
- the thickness of the coating is not particularly limited, and may be appropriately set according to the application.
- the film can be formed by, for example, a hydrophilic coating agent.
- a coating agent suitable for forming a coating provided on the elongated medical device of the present embodiment will be described below.
- a coating agent suitable for forming a coating provided on the elongated medical device of the present embodiment is a copolymer containing polymerized units (A) having a cyclic carbonate structure and polymerized units (B) having a hydrophilic structure.
- a solvent is included together with coalescence (C). That is, the coating agent used for forming the coating provided in the elongated medical device of the present embodiment contains a monomer (a) for obtaining a polymerized unit (A) having a cyclic carbonate structure, and a polymerized unit having a hydrophilic structure ( and a copolymer (C) made by copolymerizing a material comprising a monomer (b) to obtain B).
- a monomer (a) for obtaining a polymerized unit (A) having a cyclic carbonate structure and a polymerized unit having a hydrophilic structure ( and a copolymer (C) made by copolymerizing a material comprising a monomer (b)
- Polymerized unit (A) having a cyclic carbonate structure The polymerized unit (A) having the cyclic carbonate structure described above has at least one cyclic carbonate group.
- Polymerized units (A) having a cyclic carbonate structure of the present embodiment can have, for example, 1 to 3 cyclic carbonate groups, preferably 1 or 2 cyclic carbonates, and more preferably has one cyclic carbonate group.
- a structure represented by the following formula (4) can be used for the “cyclic carbonate group”. (4) wherein R 1 is a hydrogen atom, a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 1 to 4 carbon atoms, a linear alkenyl group having 1 to 4 carbon atoms, and represents any branched alkenyl group having 1 to 4 carbon atoms.
- R 1 is a hydrogen atom, a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 1 to 4 carbon atoms, a linear alkenyl group having 1 to 4 carbon atoms, and represents any branched alkenyl group having 1 to 4 carbon atoms.
- at least one hydrogen atom of R 1 may be substituted with a halogen atom, and at least one carbon atom (-C-) is substituted with -O-, -S-, -P- good too.
- the linear or branched alkyl group having 1 to 4 carbon atoms in R 1 includes methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group and the like.
- the linear or branched alkenyl group having 1 to 4 carbon atoms is a group in which at least one, preferably one, of the direct carbon-carbon bonds of the above alkyl group is replaced with an unsaturated double bond. is mentioned. From the viewpoint of easily improving water resistance, R 1 is preferably a hydrogen atom or a methyl group, more preferably a hydrogen atom.
- R 2 represents a linear or branched alkylene or alkenylene group having 1 to 4 carbon atoms.
- at least one hydrogen atom of R 2 may be substituted with a halogen atom, and at least one carbon atom (-C-) may be substituted with -O-, -S-, -P- good.
- the linear or branched alkylene group having 1 to 4 carbon atoms for R 2 includes methylene group, ethylene group, n-propylene group, isopropylene group, n-butylene group, methylmethylene group, methylethylene group, A dimethylethylene group, a methylpropylene group, and the like can be mentioned.
- the linear or branched alkenylene group having 1 to 4 carbon atoms is a group in which at least one, preferably one, of the direct carbon-carbon bonds of the above alkylene group is replaced with an unsaturated double bond. is mentioned.
- R 2 is preferably a linear or branched alkylene group having 1 to 4 carbon atoms, more preferably a linear alkylene group having 1 carbon atom.
- the "cyclic carbonate group” is desirably a (2-oxo-1,3-dioxolan-4-yl) group.
- the monomer (a) for forming the polymerized unit (A) having a cyclic carbonate structure is preferably a (meth)acrylate having a cyclic carbonate group. More preferably, it is a monomer directly bonded to R 2 of the cyclic carbonate group of formula (4) above.
- CH2 CR1 - R4- ( CH2 ) n- (5)
- R 1 represents a hydrogen atom or a methyl group
- R 4 represents -COO- or -CO-NH-
- n represents an integer of 1 to 4.
- the monomer (a) examples include (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate (GCMA) and (2-oxo-1,3-dioxolan-4-yl)methyl Acrylate (GCA) can be used, and (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate (GCMA) is more preferred.
- the polymerized unit (B) having hydrophilicity in the present embodiment has a hydrophilic structure that imparts hydrophilicity to the polymerized unit.
- the hydrophilic structure is desirably a charge-neutral structure. Examples of charge-neutral hydrophilic structures include betaine structures, amide structures, alkylene oxide structures, and lactam structures. However, it may be a polymer unit (B) having a hydrophilic structure other than the betaine structure, amide structure, alkylene oxide structure, or lactam structure described above. It is also possible to use units.
- a betaine structure has a positive charge and a negative charge at non-adjacent positions in the same molecule, and no dissociable hydrogen is bonded to the positively charged atom, and the overall structure is neutral (charge ) refers to a structure that does not have
- positively charged functional groups include, for example, quaternary ammonium, sulfonium, and phosphonium
- negatively charged functional groups include, for example, sulfonic acid, carboxylic acid, and Any of the phosphonic acids can be used.
- the betaine structure can be, for example, sulfobetaine, carboxybetaine, or phosphobetaine.
- the betaine structure of the present embodiment can have various combinations of positively charged functional groups and negatively charged functional groups as described above.
- Examples of the betaine structure of the present embodiment include N-methacryloylaminopropyl-N,N-dimethylammonium- ⁇ -N-methylcarboxybetaine (MAMCMB), N-methacryloyloxyethyl-N,N-dimethylammonium- ⁇ - Structures derived from either N-methylcarboxybetaine (CMB), 2-methacryloyl-oxyethyl-phosphorylcholine (MPC), or 3-methacryloylamino-propyl-dimethyl-3-sulfobetaine (SMB) are preferably used. be able to.
- the coating agent used for forming the film provided in the long medical device of the present embodiment is cured by opening the cyclic carbonate structure of the polymerized unit (A) and cross-linking with a cross-linking agent, as described later.
- a cross-linking agent as described later.
- the positively charged functional group of the betaine structure is provided with a quaternary ammonium, it is desirable because the quaternary ammonium can serve as a catalyst for the cross-linking reaction described above.
- polymerized unit (B) having a betaine structure as a hydrophilic structure when N-methacryloylaminopropyl-N,N-dimethylammonium- ⁇ -N-methylcarboxybetaine (MAMCMB) is used as the monomer (b)
- MAMCMB N-methacryloylaminopropyl-N,N-dimethylammonium- ⁇ -N-methylcarboxybetaine
- An amide structure is a structure having an amide bond, for example, N,N-dimethylacrylamide (DMAAm), N-isopropylacrylamide (NiPPAM), acrylamide (AAm), methylacrylamide (MAAm), 2-acrylamide-2-
- DMAAm N,N-dimethylacrylamide
- NiPPAM N-isopropylacrylamide
- AAm acrylamide
- MAAm methylacrylamide
- 2-acrylamide-2- The structure can be obtained when any one of methylpropylsulfonic acid (AMPS), methacrylamide, N-vinylformamide, N-vinylacetamide, and N-vinylpyrrolidone is used as the monomer (b).
- AMPS methylpropylsulfonic acid
- methacrylamide N-vinylformamide
- N-vinylacetamide N-vinylacetamide
- N-vinylpyrrolidone 2-acrylamide-2-
- N,N-dimethylacrylamide (DMAAm), N-isopropylacrylamide (NiPPAM), acrylamide (AAm), methylacrylamide (MAAm), 2-acrylamido-2-methylpropylsulfonic acid (AMPS) ) can be suitably used as the monomer (b).
- Such an amide structure has no charge bias and is neutral as a whole.
- the coating agent used for forming the film provided in the long medical device of the present embodiment is cured by opening the cyclic carbonate structure of the polymerized unit (A) and cross-linking with a cross-linking agent, as described later.
- the tertiary ammonium contained in the amide structure is desirable because it can serve as a catalyst for the cross-linking reaction described above.
- a polymerized unit (B) having an amide structure as a hydrophilic structure a polymerized unit obtained by using N,N-dimethylacrylamide (DMAAm) as a monomer is shown in formula (7) below.
- An alkylene oxide structure is a structure having an alkylene oxide group (-RO-; where R is an alkylene group, and R preferably has 1 to 5 carbon atoms).
- the alkylene oxide structure of the present embodiment is, for example, a structure obtained by using any one of alkoxypolyalkylene glycol acrylate, alkoxypolyalkylene glycol methacrylate, alkoxyalkyl acrylate, and alkoxyalkyl methacrylate as the monomer (b). can be done.
- methoxypolyethylene glycol acrylate, methoxypolyethylene glycol methacrylate, methoxyethyl acrylate, methoxyethyl methacrylate, methoxypolypropylene glycol acrylate, methoxypolypropylene glycol methacrylate, methoxymethyl acrylate, methoxymethyl methacrylate, ethoxymethyl acrylate, ethoxymethyl methacrylate , ethoxyethyl acrylate, ethoxyethyl methacrylate, ethoxypropyl acrylate, ethoxypropyl methacrylate can be used.
- Such an alkylene oxide structure has no charge bias and is neutral as a whole.
- the polymerized unit (B) having an alkylene oxide structure as a hydrophilic structure As an example of the polymerized unit (B) having an alkylene oxide structure as a hydrophilic structure, the polymerized unit obtained when methoxypolyethylene glycol methacrylate (M90G) is used as the monomer (b) is shown in formula (8) below. Further, as another example of the polymerized unit (B) having an alkylene oxide structure as a hydrophilic structure, the polymerized unit obtained when methoxyethyl acrylate (MEA) is used as the monomer (b) is expressed by the following formula (9) shown in
- the lactam structure can be ⁇ -lactam (4-membered ring) structure, ⁇ -lactam (5-membered ring) structure, ⁇ -lactam (6-membered ring) structure, ⁇ -lactam (7-membered ring) structure, A ⁇ -lactam (5-membered ring) structure is preferred.
- Examples of the monomer (b) used to obtain the lactam structure of the present embodiment include N-vinylpyrrolidone, N-vinyl-5-methylpyrrolidone, N-vinyl-5-ethylpyrrolidone, N-vinyl-5-propyl vinyl monomers having a 5-membered ring lactam structure such as pyrrolidone, N-vinyl-5-butylpyrrolidone, 1-(2-propenyl)-2-pyrrolidone; vinyl monomers having a 6-membered ring lactam structure such as N-vinylpiperidone; - vinyl monomers having a seven-membered ring lactam structure such as vinyl caprolactam; Such a lactam structure has no charge bias and is neutral as a whole.
- N-vinylpyrrolidone (NVP) N-vinylpyrrolidone
- hydrophilic monomers (b) include, for example, acrylic acid and acrylates such as sodium acrylate, methacrylic acid and methacrylates such as sodium methacrylate, maleic anhydride, and 2-hydroxyethyl methacrylate.
- HEMA 2-hydroxyethyl acrylate
- HPA 2-hydroxypropyl acrylate
- HPMA 2-hydroxypropyl methyl acrylate
- 4-hydroxybutyl acrylate (4HBA) 4-hydroxybutyl methacrylate (4HBMA)
- CHDMA 1,4-cyclohexanedimethanol monoacrylate
- AMP acryloylmorpholine
- N,N-dimethylaminoethyl acrylate and the like.
- the coating agent used for forming the coating film of the elongated medical device of the present embodiment includes polymerized units (A) having a cyclic carbonate structure, polymerized units (B) having a hydrophilic structure, Contains a copolymer (C) containing
- the copolymer (C) contained in the coating agent is, as described above, a monomer (a) for obtaining a polymerized unit (A) having a cyclic carbonate structure and a polymerized unit (B) having a hydrophilic structure. It can be produced by copolymerizing a material containing a monomer (b) for
- the copolymer (C) may have, as polymerized units (A) having a cyclic carbonate structure, structural units derived from one or more types of monomers (a) selected from the monomers (a) described above. Just do it. Further, the copolymer (C) has a structural unit derived from one or more types of monomers (b) selected from the monomers (b) described above as the polymerized units (B) having a hydrophilic structure. It is good if there is Further, the copolymer (C) may be a random copolymer containing polymerized units (A) having a cyclic carbonate structure and polymerized units (B) having a hydrophilic structure, or may be a block copolymer. or a mixture thereof.
- the copolymer (C) may further contain structural units different from the polymerized units (A) having a cyclic carbonate structure and the polymerized units (B) having a hydrophilic structure.
- a monomer having a long-chain aliphatic structure such as n-butyl methacrylate or n-lauryl methacrylate may be added in addition to the monomer (a) and the monomer (b) when preparing the copolymer (C). .
- the glass transition point Tg of the copolymer (C) can be lowered and the copolymer (C) can be softened.
- a photopolymer such as 4-methacryloyloxybenzophenone (MBP) or 4-methacryloyloxy-2-hydroxybenzophenone (MHP) may be added during the preparation of the copolymer (C).
- MBP 4-methacryloyloxybenzophenone
- MHP 4-methacryloyloxy-2-hydroxybenzophenone
- Monomers having functional groups capable of forming crosslinks upon irradiation may be added.
- the content of the polymerized unit (A) having a cyclic carbonate structure is 2 mol% from the viewpoint of ensuring the adhesion between the coating agent and the base material to be coated with the coating agent. 3 mol % or more is more desirable, and 5 mol % or more is even more desirable.
- the content of the polymerized units (A) having a cyclic carbonate structure may be, for example, 50 mol% or less, preferably 30 mol% or less, more preferably 20 mol% or less, and even more preferably 15 mol% or less. .
- the content of the polymerized units (B) having a hydrophilic structure may be, for example, 50 mol% or more from the viewpoint of ensuring the hydrophilicity of the coating, and a long From the viewpoint of a scale-shaped medical device, it is preferably 70 mol % or more, more preferably 80 mol % or more, and even more preferably 85 mol % or more.
- the content of polymerized units (B) having a hydrophilic structure is desirably 98 mol % or less, more desirably 97 mol % or less, and even more desirably 95 mol % or less.
- the monomer (a) may be mixed at a ratio of the polymerized units (A) having the cyclic carbonate structure described above, and the monomer (b) may be mixed with the hydrophilic polymer described above. It suffices to mix them at the ratio of the polymerized units (B) having an organic structure.
- the copolymer (C) preferably has at least a polymerized unit (B1) having a betaine structure as the polymerized unit (B) having a hydrophilic structure, and the amount of the polymerized unit (B1) having a betaine structure is Based on the total amount of polymerized units contained in the copolymer (C), preferably 10 mol% or more, more preferably 20 mol% or more, and still more preferably 30 mol% or more, from the viewpoint of easily increasing the lubricity of the coating. , and more preferably 40 mol % or more.
- the copolymer (C) containing a polymerized unit having a betaine structure further includes at least one selected from the group consisting of an amide structure, an alkylene oxide structure, and a lactam structure as the polymerized unit (B) having a hydrophilic structure.
- the copolymer (C) preferably has at least polymerized units (B2) having an amide structure as polymerized units (B) having a hydrophilic structure, and the amount of the polymerized units (B2) having an amide structure is , From the point of easily increasing the lubricity of the coating, from the point of easily increasing the crosslinkability at low temperatures, based on the amount of all polymerized units contained in the copolymer (C), it may be 10 mol% or more, preferably It is 30 mol % or more, more preferably 50 mol % or more, still more preferably 70 mol % or more, even more preferably 80 mol % or more, particularly preferably 85 mol % or more.
- the polymerized units (B) having a hydrophilic structure are selected from the group consisting of a betaine structure, an alkylene oxide structure, and a lactam structure. It is also preferable to contain 1 type.
- the weight average molecular weight of the copolymer (C) is desirably 10,000 or more, more desirably 40,000 or more.
- the average weight molecular weight of the copolymer (C) is desirably 1,000,000 or less, more desirably 90,000 or less.
- the method for polymerizing the material containing the monomer (a) and the monomer (b) when producing the copolymer (C) is not particularly limited.
- a polymerization method, a suspension polymerization method, and the like can be mentioned. Among them, the solution radical polymerization method is desirable.
- the hydrophilic coating provided on the elongated medical device of the present embodiment is formed by coating a base material with a coating agent containing the copolymer (C) and a solvent. can be formed. Specifically, the coating agent is further mixed with a cross-linking agent such as a diamine or a polyamine, and the cyclic carbonate structure of the polymerized unit (A) is reacted with the cross-linking agent to open the cyclic carbonate, whereby the poly A hydroxyurethane is formed. By allowing such a reaction to proceed on the base material coated with the coating agent, a hydrophilic film can be formed in close contact with the base material.
- a cross-linking agent such as a diamine or a polyamine
- the cross-linking agent used for forming the polyhydroxyurethane is not particularly limited as long as it is a material having two or more primary amines in the molecule.
- Examples include aliphatic polyamines, alicyclic polyamines, and aromatic polyamines. can be preferably used. Specifically, for example, hexamethylenediamine (HMDA), 1,4-butanediamine (BDA), diethylenetriamine (DETA), and triethylenetetramine (TETA) can be suitably used as aliphatic polyamines.
- HMDA hexamethylenediamine
- BDA 1,4-butanediamine
- DETA diethylenetriamine
- TETA triethylenetetramine
- MDA mensenediamine
- IPDA isophoronediamine
- aromatic polyamines for example, meta-xylenediamine (m-XDA), diaminodiphenylmethane (DDM), and m-phenylenediamine (m-PDA) can be preferably used.
- m-XDA meta-xylenediamine
- DDM diaminodiphenylmethane
- m-PDA m-phenylenediamine
- HMDA hexamethylenediamine
- HMDA is a long-chain aliphatic compound, has high structural reactivity and flexibility, and is suitable as a cross-linking agent. It is also less toxic than other diamine compounds with shorter chain lengths, making it suitable for medical device applications.
- the coating agent and the cross-linking agent should be dissolved in a solvent so that the concentration and viscosity of the coating agent are within the appropriate ranges.
- the amount of the solvent is not particularly limited as long as it is an amount capable of dissolving the copolymer (C) and the cross-linking agent. , 10 to 99 mass %.
- the solvent is not particularly limited as long as it can dissolve the copolymer (C).
- alcohols such as ethanol, methanol, propanol, 2-propanol, butanol, benzyl alcohol, N-methyl-2-pyrrolidone (NMP), dimethylsulfoxide (DMSO), N,N-dimethylformamide (DMF), dimethylacetamide
- NMP N-methyl-2-pyrrolidone
- DMSO dimethylsulfoxide
- DMF N,N-dimethylformamide
- DMA dimethylacetamide
- a polymerization initiator or catalyst may be added as necessary.
- the coating agent mixed with the cross-linking agent can be cured by heating to, for example, 70 to 150° C. to promote the ring-opening reaction of the cyclic carbonate described above.
- FIG. 1 is an explanatory diagram showing how a copolymer (C) contained in a coating agent is crosslinked by a crosslinking agent to form a polyhydroxyurethane.
- a copolymer (C) contained in a coating agent is crosslinked by a crosslinking agent to form a polyhydroxyurethane.
- GCMA (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate
- Figure 3 shows the cyclic carbonate structure when used.
- R 1 is a hydrogen atom (H) or a methyl group (CH 3 ), and the monomer (a) is (2-oxo-1,3-dioxolane-4- R 1 becomes H when yl)methyl methacrylate (GCMA) is used.
- FIG. 1 shows a state in which hexamethylenediamine is used as a cross-linking agent. 1, and in FIGS. 2 and 3, which will be described later, the "portion representing the polymerization site of the polymerized units (A) and (B)" is simplified and indicated by a wavy line, and " The description of the hydrophilic structure R 2 derived from the polymerized unit (B) is omitted.
- the coating agent when the coating agent is cured, urethane bonds are formed and hydroxyl groups are generated along with the ring opening of the cyclic carbonate.
- the hydroxyl group is indicated by enclosing it with a one-dot chain line
- the urethane bond is indicated by enclosing it with a two-dot chain line.
- FIG. 1 shows the case where the crosslinked structure of formula (1) is obtained.
- R 1 represents a hydrogen atom, a linear alkyl group having 1 or more carbon atoms, or a branched alkyl group having 1 or more carbon atoms.
- R 2 is an alkylene group having 1 or more carbon atoms, a divalent alicyclic hydrocarbon group containing an alicyclic structure having 3 or more carbon atoms, or a divalent aromatic group containing an aromatic ring structure having 6 or more carbon atoms.
- the alkylene group, the alicyclic hydrocarbon group, and the aromatic group are represented by —NR 3 — (R 3 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms) between carbon atoms. It may have a divalent group.)
- the material constituting the base material to be coated with the coating agent is not particularly limited, and can be, for example, metal or polymer material (resin).
- the surface of the substrate preferably contains at least one of a metal, a polymer material having a group capable of forming a hydrogen bond, and polyurethane.
- a hydrophilic film The adhesion between the hydrogel layer) and the substrate can be further enhanced.
- metals constituting the metal base include iron (Fe), chromium (Cr), nickel (Ni), molybdenum (Mo), cobalt (Co), titanium (Ti), tungsten (W), platinum (Pt ), gold (Au), silver (Ag), tin (Sn), and other elements that form metallic bonds can be used singly or in the form of alloys. More specifically, stainless alloys, nickel-titanium alloys, cobalt-chromium alloys, platinum alloys, tungsten, tin-silver alloys, and the like can be suitably used.
- the above-mentioned "group capable of forming a hydrogen bond” may be a group containing a hydrogen atom and forming a covalent bond with an atom having higher electronegativity than the hydrogen atom.
- Examples of the above atoms that form a covalent bond with a hydrogen atom include an oxygen atom (O), a nitrogen atom (N), a sulfur atom (S), and a carbon atom (C).
- the "polymer material having a group capable of forming a hydrogen bond” for example, polyvinyl alcohol (PVA), modified polyolefin resin having a group capable of forming a hydrogen bond, or the like can be used.
- a wide range of synthetic resins having urethane bonds can be used as the polyurethane base material.
- aromatic ether urethane, aromatic carbonate urethane, aromatic ester urethane, aliphatic ether urethane, aliphatic carbonate urethane, aliphatic ester urethane, polyhydroxy urethane, urea urethane having a urea bond in part etc. can be used.
- aromatic ether urethanes and polyhydroxy urethanes are preferably used due to their excellent flexibility, reactivity and adhesion.
- a base material having a metal surface a base material having a polymer material having a group capable of forming a hydrogen bond on the surface, and a surface having a polyurethane Formation of a hydrophilic film using a substrate will be described.
- FIG. 2 is an explanatory view schematically showing the principle of adhesion of the hydrophilic film according to the present embodiment on the substrate 10 whose surface is made of metal.
- the coating agent of the present embodiment when the coating agent of the present embodiment is cured, hydroxyl groups are generated along with the ring opening of the cyclic carbonate. The hydroxyl groups thus generated form hydrogen bonds with the hydroxyl groups on the surface of the substrate made of metal, and are bonded to the surface of the substrate. That is, the cyclic carbonate is ring-opened and crosslinked, and the reaction of curing the coating agent and the reaction of forming a hydrogen bond with the surface of the base material proceed at the same time, and the hydrophilic coating is formed on the base material. 10 is adhered to. Based on the same principle, the hydrophilic film also strongly adheres to the base material 10 having on its surface a polymeric material having groups capable of forming hydrogen bonds.
- FIG. 3 is an explanatory diagram schematically showing the principle of adhesion of the hydrophilic film according to the present embodiment on the substrate 10 whose surface is made of polyurethane.
- the coating agent of the present embodiment when the coating agent of the present embodiment is cured, urethane bonds are generated with the ring opening of the cyclic carbonate.
- the urethane bond thus generated is compatible and adheres to the urethane constituting the substrate surface. That is, the reaction in which the cyclic carbonate is ring-opened and crosslinked to cure the coating agent and the reaction in which the urethanes are compatible and adhere to each other on the substrate surface proceed simultaneously, and the hydrophilic coating is formed on the substrate. It is adhered on the material 10 .
- the base material included in the elongated medical device of the present embodiment is different from the base material containing at least one of a metal, a polymer material having a group capable of forming a hydrogen bond, and polyurethane on its surface. material may be used.
- a bonding force such as hydrogen bonding is generated between the film and the substrate, a similar high adhesion can be obtained in the hydrophilic film. .
- the elongated medical device of this embodiment can be a medical device that is used by being inserted into the body.
- the elongated medical device of the present embodiment includes, for example, an elongated metal medical device, an elongated urethane medical device, and a polymer material having a group capable of forming a hydrogen bond.
- an elongated medical device coated with metal with polyurethane may be used as the base material 10, and the surface of the base material 10 may be formed with the aforementioned hydrophilic film.
- a guide wire or a catheter can be cited as particularly suitable forms.
- a metal guide wire, a guide wire with a urethane coating layer on the surface of the coil layer at the tip (urethane jacket guide wire), or a catheter with a polyurethane hollow shaft, etc. are used as the base material.
- a metal guide wire, a guide wire with a urethane coating layer on the surface of the coil layer at the tip (urethane jacket guide wire), or a catheter with a polyurethane hollow shaft, etc. are used as the base material.
- urethane jacket guide wire urethane jacket guide wire
- a catheter with a polyurethane hollow shaft, etc. are used as the base material.
- the catheter of the present disclosure is not particularly limited, and any catheter such as a guiding catheter, a penetrating catheter, a microcatheter, a balloon catheter, a foreign body removal catheter, an imaging catheter, a bile duct catheter, a urethral catheter, an endoscope, and a dilator.
- the guidewire of the present disclosure is not particularly limited, and for example, a PCI guidewire for coronary artery treatment, a PTA guidewire for lower extremity vascular treatment, an IVR guidewire for peripheral vascular treatment, and an INR guidewire for cerebrovascular treatment. , CAG guidewires for imaging, or any other guidewire.
- the elongated medical device of the present embodiment can adopt various configurations such as those shown in (a) to (e) below.
- the coating layers provided in the guidewires (a) and (c) below are metal, polymer materials having groups capable of forming hydrogen bonds, and polyurethane, as described for the structure of the surface of the substrate 10 described above. It is desirable to have at least one of
- a guide comprising a film formed of a polymer material in which the copolymer (C) containing the polymerized units (B) is crosslinked by the structure represented by any one of the formulas (1) to (3) described above.
- wire (c) a linear core wire, a coil layer in which a wire is helically wound around at least a part of the outer periphery of the core wire, a coating layer provided on the outer periphery of the coil layer, and on the surface of the coating layer
- the formed film is a polymer in which a copolymer (C) containing a polymerized unit (B) having a hydrophilic structure is crosslinked by a structure represented by any one of the above formulas (1) to (3).
- a guidewire comprising a coating formed of a material.
- a tubular member and a coating film formed on the surface of the tubular member wherein the copolymer (C) containing polymerized units (B) having a hydrophilic structure is represented by the above formulas (1) to (3) and a coating formed of a polymeric material crosslinked by the structure shown in any one of.
- the copolymer (C ) is formed of a polymeric material crosslinked by a structure represented by any one of the above formulas (1) to (3).
- the elongated medical device of the present embodiment may have a configuration different from (a) to (e) described above, and may be an elongated medical device other than a guide wire or catheter. At least part of the surface of the long medical device may be provided with a hydrophilic film formed using the coating agent described above according to the present embodiment.
- the elongated medical device of the present embodiment includes a resin that is difficult to heat as a base material, it is desirable that the hydrophilic coating can be formed on the base material at a lower temperature. Therefore, in such a case, the copolymer (C) constituting the film is crosslinked by ring-opening the cyclic carbonate structure of the polymerized units (A) even under relatively low temperature conditions. It is desirable to use a copolymer (C) that acts as a catalyst for the reaction.
- the copolymer (C) has a betaine structure with a quaternary ammonium or an amide structure with a tertiary ammonium as the polymerized units (B) having a hydrophilic structure
- These quaternary ammoniums and tertiary ammoniums can serve as catalysts for cross-linking reactions.
- tertiary ammonium, especially tertiary ammonium that does not form a ring structure is desirable because of its high activity of promoting the cross-linking reaction even under low temperature conditions such as room temperature.
- the copolymer (C) is a random copolymer of the polymerized units (A) and the polymerized units (B) described above. is preferred.
- the elongated medical device of the present embodiment configured as described above is a copolymer (C ) is provided with a coating formed using a coating agent containing. Therefore, in the coating formed on the surface of the elongated medical device, it is possible to improve the adhesion to the substrate and the hydrophilicity. Then, the coating agent is applied onto the base material, and a curing reaction accompanied by ring-opening of the cyclic carbonate is performed to form a coating film, so that, for example, a separate layer for enhancing adhesion to the base material can be provided. Therefore, it is possible to form a hydrophilic film while ensuring adhesion to the base material.
- hydroxyl groups are generated with the ring-opening of the cyclic carbonate included in the polymerized units (A) of the coating agent, when a metal member having hydroxyl groups on the surface is used as the base material, the hydroxyl groups are generated with the ring-opening of the cyclic carbonate. A hydrogen bond is formed between the hydroxyl group and the hydroxyl group on the surface of the metal substrate. As a result, along with the formation of the hydrophilic coating, it becomes possible to adhere the hydrophilic coating to the substrate well.
- a urethane bond is formed with the ring opening of the cyclic carbonate of the polymerized unit (A) of the coating agent, when the substrate surface is formed of a urethane resin, the urethane bond is formed with the ring opening of the cyclic carbonate.
- the urethane bond formed on the substrate and the urethane structure on the substrate surface are compatible with each other. As a result, along with the formation of the hydrophilic coating, it becomes possible to adhere the hydrophilic coating to the substrate well.
- the coating agent according to the present embodiment can be used as a more versatile coating agent than conventionally known hydrophilic coating agents for long medical devices.
- the hydrophilic structure provided by the polymerized units (B) having a hydrophilic structure can be converted into a charge-neutral hydrophilic structure, thereby The biocompatibility of the scale-shaped medical device can be enhanced.
- biocompatibility may be insufficient if, for example, the coating agent has a non-neutral charged structure as the hydrophilic structure.
- proteins in the blood are attracted to the charge and become more likely to be adsorbed, which may promote thrombus formation or cause an allergic reaction due to the adsorption of complement proteins.
- the following formula (11) shows a polymerized unit obtained when methacrylic acid having a negatively charged hydrophilic structure of carboxylic acid is used as a monomer.
- the hydrophilic structure of the coating is neutral in charge, so such reactions are suppressed and biocompatibility is improved. can be enhanced.
- the use of toxic substances such as isocyanate is suppressed, and urethane is used. Allow the reaction to proceed. Therefore, for example, even when a long medical device is used as a base material, the post-treatment of the coating process with a coating agent can be eliminated or simplified, and the coating process using a coating agent is involved. The entire manufacturing process can be simplified.
- the ring-opening reaction of the cyclic carbonate structure generally proceeds under relatively mild conditions of about 70° C., it is possible to reduce the manufacturing cost of the device provided with the hydrophilic film.
- the base material is coated with a coating agent having different conditions for the polymerized units (B) having a hydrophilic structure and conditions for curing (gelation), and samples S1 to S7 are used as long-shaped medical products. Devices were made and compared.
- the copolymer used for producing the elongated medical device of sample S1 contained (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate (GCMA) as the polymerized unit (A) having a cyclic carbonate structure. containing structural units derived from Further, the copolymer used to prepare sample S1 contained N-methacryloylaminopropyl-N,N-dimethylammonium- ⁇ -N-methylcarboxybetaine (MAMCMB) as the polymerized unit (B) having a hydrophilic structure, and a structural unit derived from methoxypolyethylene glycol methacrylate (M90G).
- GCMA (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate
- MAMCMB N-methacryloylaminopropyl-N,N-dimethylammonium- ⁇ -N-methylcarboxybetaine
- M90G methoxypolyethylene glycol
- the copolymer used to prepare sample S1 contained 10 mol % of structural units derived from GCMA, 40 mol % of structural units derived from MAMCMB, and 50 mol % of structural units derived from M90G.
- the copolymer used for preparing sample S1 is also referred to as "Poly(MAMCMB-M90G-GCMA) 40:50:10".
- Poly(MAMCMB-M90G-GCMA)40:50:10” is shown in the following equation (12).
- Poly(MAMCMB-M90G-GCMA) 40:50:10 is a random copolymer, and the formula (12) indicates a site where the above three types of structural units are continuously polymerized. In the formula (12), the cyclic carbonate is indicated by enclosing it with a dashed line.
- the elongated medical device of sample S1 uses a medical guide wire having a metal coil portion as a base material, and the portion of the base material including the metal coil portion is "Poly (MAMCMB-M90G-GCMA) 40: 50:10" coating.
- the above copolymer was dissolved in ethanol so as to be 20 wt %.
- the coating agent in which the copolymer is dissolved is mixed with a 5% ethanol solution of hexamethylenediamine (HMDA) as a cross-linking agent in a weight ratio of 5:3, fully dissolved.
- HMDA hexamethylenediamine
- the coating agent to which the cross-linking agent was added was applied onto the substrate by a dip coating method. After applying the coating agent, it was dried for 1 hour using a hot air circulation drying oven at 120° C. to prepare sample S1.
- the sample S2 long medical device uses a guide wire (urethane jacketed guide wire) having a urethane coating layer on the surface of the metal coil portion as the base material, and the portion including the urethane coating layer is coated with a coating agent. Except for that, it was produced in the same manner as sample S1.
- a guide wire urethane jacketed guide wire having a urethane coating layer on the surface of the metal coil portion as the base material, and the portion including the urethane coating layer is coated with a coating agent. Except for that, it was produced in the same manner as sample S1.
- the copolymer used for producing the elongated medical device of sample S3 contained (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate (GCMA) as the polymerized unit (A) having a cyclic carbonate structure. containing structural units derived from
- the copolymer used to prepare sample S3 contains a structural unit derived from N,N-dimethylacrylamide (DMAAm) as the polymerized unit (B) having a hydrophilic structure.
- the copolymer used to prepare sample S3 contained 10 mol % of structural units derived from GCMA and 90 mol % of structural units derived from DMAAm.
- the copolymer used to prepare sample S3 is also referred to as "Poly(DMAAm-GCMA) 90:10".
- Poly(DMAAm-GCMA)90:10 is shown in the following formula (13).
- Poly(DMAAm-GCMA) 90:10” is a random copolymer, and the formula (13) indicates a site where the two types of structural units described above are continuously polymerized.
- the cyclic carbonate is indicated by enclosing it with a dashed line, and the tertiary ammonium is indicated by enclosing it with an alternate long and short dash line.
- the weight-average molecular weight of the copolymer of sample S3 was about 90,000.
- the weight-average molecular weight of the copolymer of sample S3 and the weight-average molecular weight of the copolymers of other samples described later were measured by gel permeation chromatography (GPC).
- a medical guide wire having a metal coil portion was used as a base material, and the portion of the base material including the metal coil portion was formed as "Poly(DMAAm- GCMA) 90:10”.
- the method of coating the substrate with the coating agent in the preparation of sample S3 was the same as that of sample S1, except that the solvent used in preparing the coating agent by dissolving the copolymer was changed from ethanol to dimethylformamide. did.
- the sample S4 long medical device uses a guide wire (urethane jacketed guide wire) with a urethane coating layer on the surface of the metal coil portion as the base material, and the part containing the urethane coating layer is coated with a coating agent. Other than that, it was produced in the same manner as sample S3.
- a guide wire urethane jacketed guide wire
- the elongated medical device of sample S5 uses "Poly (DMAAm-GCMA) 90:10" as the copolymer, similar to sample S4. A wire (urethane jacketed guide wire) was used.
- the copolymer used for manufacturing the long medical device of sample S5 was different from the copolymer used for manufacturing sample S4 (and sample S3) because the conditions for preparing the copolymer were different. differ in weight average molecular weight.
- the weight average molecular weight of the copolymer according to sample S5 was about 40,000.
- sample S6 uses "Poly (MAMCMB-M90G-GCMA) 40:50:10" as the copolymer and has a metal coil as the base material, similar to sample S1. A wire was used. However, in sample S6, a hydrophilic film was formed on the substrate using the coating agent without adding HDMA as a cross-linking agent to the coating agent and under the same conditions as in sample S1. Sample S6 corresponds to a comparative example.
- sample S7 uses "Poly (DMAAm-GCMA) 90:10" as the copolymer and uses a medical guide wire with a metal coil as the base material, similar to sample S3. .
- a hydrophilic film was formed on the substrate using the coating agent without adding HDMA as a cross-linking agent to the coating agent and under the same conditions as in sample S1.
- Sample S7 corresponds to a comparative example.
- the samples S1 to S5 showed a low resistance even after the 50th test, unlike the samples S6 and S7.
- a hydrophilic film that adheres to the substrate and exhibits good film strength is formed by allowing the cross-linking reaction of the coating agent to proceed on the substrate.
- the weight-average molecular weight is in a wide range of 40,000 to 90,000, for example. It was confirmed that a hydrophilic film exhibiting good film strength was formed.
- copolymer comprising a polymerized unit (A) having a cyclic carbonate structure and a polymerized unit (B) having a hydrophilic structure
- Poly(MAMCMB-M90G-GCMA) 40:50:10 was used as in sample S1.
- HMDA hexamethylenediamine
- the polyurethane film of the comparative example was formed by a dipping method using Pellethane 2360-80AE (manufactured by Lubrizol) known as medical polyurethane.
- the evaluation of the adhesion to the metal substrate was performed by a cross-cut test (JIS K5600-5-6, 1999). Specifically, a cutter knife is used to make grid-like cuts at 1 mm intervals in the formed coating, a transparent adhesive tape is attached and then peeled off, and the state of the grid is observed to determine whether the coating is peeled off. I checked the status.
- FIG. 4 is an explanatory diagram showing the results of the crosscut test.
- the evaluation result was 0 (no peeling)
- the coating of the comparative example extensive peeling was observed in the tested area (the evaluation result was 4 (large peeling)).
- the film formed using the coating agent comprising the polymerized units (A) having a cyclic carbonate structure and the polymerized units (B) having a hydrophilic structure was formed using a polyol resin and an isocyanate curing agent. It was confirmed that the coating exhibited superior adhesion to metal substrates compared to the coating of the comparative example.
- a guide wire having a urethane coating layer on the surface of the metal coil portion was used as the urethane base material, and adhesion of the coating was evaluated.
- a film formed of a copolymer comprising polymerized units (A) having a cyclic carbonate structure and polymerized units (B) having a hydrophilic structure, and polymerized units (A) having a cyclic carbonate structure
- the adhesiveness was compared between a coating film formed of a copolymer having a structural unit derived from a monomer containing an epoxy group.
- Poly (MAMCMB-M90G-GCMA) 40:50:10 is used as a copolymer comprising a polymerized unit (A) having a cyclic carbonate structure and a polymerized unit (B) having a hydrophilic structure.
- the guidewire used has the same configuration as the previously described sample S2.
- a copolymer comprising a structural unit derived from a monomer containing an epoxy group instead of the polymerized unit (A) having a cyclic carbonate structure a copolymer comprising a structural unit derived from 4-hydroxybutyl acrylate glycidyl ether (4HBAGE)
- a polymer "Poly (MAMCMB-M90G-4HBAGE) 40:50:10” was used as a polymerized unit (A) having a cyclic carbonate structure.
- 4HBAGE 4-hydroxybutyl acrylate glycidyl ether
- FIG. 5 is an explanatory diagram showing the adhesion evaluation results.
- the horizontal axis indicates the number of times the sample was pulled out and the resistance value was measured (number of slips), and the vertical axis indicates the measured resistance value (slip resistance value).
- a coated guide wire similar to sample S2 coated with a copolymer comprising a polymerized unit (A) having a cyclic carbonate structure (denoted as “polymerized unit (A)” in FIG. 5) and an epoxy
- Three samples were prepared for each coated guidewire coated with a copolymer comprising a polymerized unit derived from a monomer containing a group (in FIG. 5, described as "polymerized unit derived from an epoxy group-containing monomer").
- Both copolymers contain a structural unit derived from (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate (GCMA) as the polymerized unit (A) having a cyclic carbonate structure.
- GCMA (2-oxo-1,3-dioxolan-4-yl)methyl methacrylate
- Each copolymer contains 10 mol % of polymerized units (A) and 90 mol % of polymerized units (B).
- the copolymer having a structural unit derived from DMAAm as the polymerized unit (B) is the same as the copolymer used in sample S5 described above, and has a weight average molecular weight of about 40,000. is.
- the copolymer having NVP-derived structural units has a weight average molecular weight of about 55,000, and the copolymer having MAMCMB-derived structural units has a weight average molecular weight of about 100,000. and the copolymer having MEA-derived structural units had a weight average molecular weight of about 40,000.
- a guide wire with a urethane coating layer on the surface of the metal coil (urethane jacket guide wire) was used as the base material for forming the hydrophilic coating.
- each copolymer was dissolved in dimethylformamide so that the concentration was 20 wt %.
- the coating agent in which the copolymer is dissolved is mixed with a 5% ethanol solution of hexamethylenediamine (HMDA) as a cross-linking agent in a weight ratio of 5:3, fully dissolved.
- HMDA hexamethylenediamine
- the change in viscosity was measured when left at room temperature (26° C.) for 1 hour, 2 hours, 3 hours, and 4 hours.
- the viscosity of each coating agent left on the substrate as described above was measured using a rotary vibration viscometer (VISCOMETER VM-10A-L, manufactured by Sansho Co., Ltd.).
- FIG. 6 is an explanatory diagram showing changes in viscosity over time of coating agents containing polymers with different polymerized units (B).
- each copolymer is distinguished by indicating the type of polymer unit (B).
- the coating agent having a structural unit derived from DMAAm as the polymerized unit (B) exhibited an increase in viscosity over time, confirming that cross-linking proceeded even at room temperature.
- the polymer unit (B) has a hydrophilic structure having a betaine structure having a quaternary ammonium or an amide structure having a tertiary ammonium, these quaternary ammoniums and tertiary ammoniums are used as coating agents.
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Abstract
Description
(1)本開示の一形態によれば、長尺状医療機器が提供される。この長尺状医療機器は、基材の表面に被膜が形成されており、前記被膜は、親水性構造を有する重合単位を含有する共重合体が以下の式(1)~(3)のいずれかで示される構造により架橋された高分子材料により、構成されている。
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(R1)-CH(OH)- … (1)
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (2)
-CH(CH(R1)-OH)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (3)
(各式中、R1は、同一であっても異なっていてもよく、水素原子、炭素数1以上の直鎖状アルキル基、または炭素数1以上の分岐状のアルキル基を表す。R2は、炭素数1以上のアルキレン基、炭素数3以上の脂環式構造を含む2価の脂環式炭化水素基、または炭素数6以上の芳香環構造を含む2価の芳香族基であって、前記アルキレン基、前記脂環式炭化水素基、および前記芳香族基は、炭素原子間に-NR3-(R3は、水素原子または炭素数1~8のアルキル基)で表される2価の基を有していてもよい。)
この形態の長尺状医療機器によれば、長尺状医療機器の表面に形成された被膜において、基材との間の密着性と親水性とを高めることができる。
(2)上記形態の長尺状医療機器において、前記親水性構造は、電荷的に中性であることとしてもよい。このような構成とすれば、長尺状医療機器の被膜における生体適合性を高めることができる。
(3)上記形態の長尺状医療機器において、前記親水性構造は、ベタイン構造、アミド構造、ラクタム構造、および、ポリアルキレンオキシド構造からなる群から選択される少なくとも1種の構造を含むこととしてもよい。このような構成とすれば、電荷的に中性である親水性被膜を備える長尺状医療機器とすることができる。
(4)上記形態の長尺状医療機器において、前記親水性構造は、正電荷を有する官能基として4級アンモニウムを備えるベタイン構造と、3級アンモニウムを備えるアミド構造と、のうちの少なくとも一方を含むこととしてもよい。このような構成とすれば、上記親水性構造を有する重合単位を含有する共重合体を備えるコーティング剤を用いて基材上に被膜を形成する場合に、3級アンモニウムや4級アンモニウムが、コーティング剤の架橋に係る反応の触媒として働くことができる。そのため、被膜の形成時に他の触媒の添加を抑えて、より簡便な方法で親水性被膜を形成することが可能になり、被膜の組成を、より簡素化することができる。
(5)上記形態の長尺状医療機器において、前記基材は、該基材の表面に、金属、水素結合を形成し得る基を有する高分子材料、ポリウレタンのうちの少なくとも1種を含むこととしてもよい。このような構成とすれば、基材と被膜との密着性を、さらに高めることができる。
(6)上記形態の長尺状医療機器において、該長尺状医療機器は、ガイドワイヤまたはカテーテルであることとしてもよい。このような構成とすれば、基材との間の高い密着性と、十分な親水性とを有する被膜を備えるガイドワイヤまたはカテーテルとすることができる。
本開示は、上記以外の種々の形態で実現可能であり、例えば、長尺状医療機器の製造方法などの形態で実現することができる。
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (2)
-CH(CH(R1)-OH)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (3)
上記した環状カーボネート構造を有する重合単位(A)は、少なくとも1種の環状カーボネート基を、少なくとも1つ有する。本実施形態の環状カーボネート構造を有する重合単位(A)は、例えば、1~3個の環状カーボネート基を有することができ、好ましくは1個または2個の環状カーボネートを有しており、さらに好ましくは1個の環状カーボネート基を有している。
(4)式中、R1は、水素原子、炭素数1~4の直鎖状アルキル基、炭素数1~4の分岐状アルキル基、炭素数1~4の直鎖状アルケニル基、及び、炭素数1~4の分岐状アルケニル基のいずれかを表す。ここで、R1の少なくとも1つの水素原子は、ハロゲン原子で置換されていてもよく、少なくとも1つの炭素原子(-C-)は、-O-、-S-、-P-に置換されてもよい。R1における炭素数1~4の直鎖状あるいは分枝状のアルキル基としては、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、イソブチル基等が挙げられる。炭素数1~4の直鎖状あるいは分枝状のアルケニル基としては、上記のアルキル基の炭素-炭素間の直接結合の少なくとも1つ、好ましくは1つが、不飽和二重結合に置き換わった基が挙げられる。耐水性を向上させやすい観点からは、R1は好ましくは水素原子又はメチル基であり、より好ましくは水素原子である。
(4)式中、R2は、炭素数1~4の、直鎖状または分岐状のアルキレン基またはアルケニレン基を表す。ここでR2の少なくとも1つの水素原子は、ハロゲン原子で置換されていてもよく、少なくとも1つの炭素原子(-C-)は、-O-、-S-、-P-に置換されてもよい。R2における炭素数1~4の直鎖状あるいは分枝状のアルキレン基としては、メチレン基、エチレン基、n-プロピレン基、イソプロピレン基、n-ブチレン基、メチルメチレン基、メチルエチレン基、ジメチルエチレン基、メチルプロピレン基等が挙げられる。炭素数1~4の直鎖状あるいは分枝状のアルケニレン基としては、上記のアルキレン基の炭素-炭素間の直接結合の少なくとも1つ、好ましくは1つが、不飽和二重結合に置き換わった基が挙げられる。耐水性を向上させやすい観点からは、R2は好ましくは炭素数1~4の直鎖状あるいは分枝状のアルキレン基であり、より好ましくは炭素数1の直鎖状アルキレン基である。
具体的には、2-オキソ-1,3-ジオキソラン構造とすることが望ましい。より具体的には、「環状カーボネート基」は、(2-オキソ-1,3-ジオキソラン-4-イル)基であることが望ましい。
(式中、R1は水素原子またはメチル基を表し、R4は-COO-又はーCO-NH-を表し、nは1~4の整数を表す。)
本実施形態における親水性を有する重合単位(B)は、重合単位に親水性を付与する親水性構造を有している。親水性構造は、電荷的に中性な構造であることが望ましい。電荷的に中性な親水性構造としては、例えば、ベタイン構造、アミド構造、アルキレンオキシド構造、および、ラクタム構造を挙げることができる。ただし、上記したベタイン構造、アミド構造、アルキレンオキシド構造、あるいはラクタム構造以外の親水性構造を有する重合単位(B)としてもよく、例えば、電荷的に中性ではない帯電した親水性構造を有する重合単位を用いることも可能である。
本実施形態の長尺状医療機器が備える被膜の形成に用いるコーティング剤は、既述したように、環状カーボネート構造を有する重合単位(A)と、親水性構造を有する重合単位(B)と、を含有する共重合体(C)を含む。コーティング剤が含む共重合体(C)は、既述したように、環状カーボネート構造を有する重合単位(A)を得るためのモノマ(a)と、親水性構造を有する重合単位(B)を得るためのモノマ(b)と、を含む材料を共重合させることにより作製することができる。
上記共重合体(C)は、親水性構造を有する重合単位(B)として、少なくともベタイン構造を有する重合単位(B1)を有することが好ましく、ベタイン構造を有する重合単位(B1)の量は、被膜の潤滑性を高めやすい点から、共重合体(C)に含まれる全重合単位の量に基づいて、好ましくは10モル%以上、より好ましくは20モル%以上、さらに好ましくは30モル%以上、さらにより好ましくは40モル%以上である。ベタイン構造を有する重合単位を含有する共重合体(C)は、親水性構造を有する重合単位(B)として更にアミド構造、アルキレンオキシド構造、および、ラクタム構造からなる群より選択される少なくとも1種を含有することも好ましい。
上記共重合体(C)はまた、親水性構造を有する重合単位(B)として、少なくともアミド構造を有する重合単位(B2)を有することが好ましく、アミド構造を有する重合単位(B2)の量は、被膜の潤滑性を高めやすい点、低温での架橋性を高めやすい点から、共重合体(C)に含まれる全重合単位の量に基づいて、10モル%以上であってよく、好ましくは30モル%以上であり、より好ましくは50モル%以上であり、さらに好ましくは70モル%以上であり、さらにより好ましくは80モル%以上であり、特に好ましくは85モル%以上である。また、アミド構造を有する重合単位を含有する共重合体(C)は、親水性構造を有する重合単位(B)としてさらにベタイン構造、アルキレンオキシド構造、および、ラクタム構造からなる群より選択される少なくとも1種を含有することも好ましい。
本実施形態の長尺状医療機器が備える親水性被膜は、既述した共重合体(C)と溶媒とを含むコーティング剤を用いて基材を被覆することにより形成することができる。具体的には、上記コーティング剤に、さらに、ジアミンやポリアミンなどの架橋剤を混合し、重合単位(A)の環状カーボネート構造と架橋剤とを反応させて環状カーボネートを開環させることで、ポリヒドロキシウレタンが形成される。このような反応を、コーティング剤を塗布した基材上で進行させることにより、基材に密着した親水性被膜を形成することができる。
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (2)
-CH(CH(R1)-OH)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (3)
(各式中、R1は、同一であっても異なっていてもよく、水素原子、炭素数1以上の直鎖状アルキル基、または炭素数1以上の分岐状のアルキル基を表す。R2は、炭素数1以上のアルキレン基、炭素数3以上の脂環式構造を含む2価の脂環式炭化水素基、または炭素数6以上の芳香環構造を含む2価の芳香族基であって、前記アルキレン基、前記脂環式炭化水素基、および前記芳香族基は、炭素原子間に-NR3-(R3は、水素原子または炭素数1~8のアルキル基)で表される2価の基を有していてもよい。)
本実施形態の長尺状医療機器は、体内に挿入して用いる医療機器とすることができる。具体的には、本実施形態の長尺状医療機器は、例えば、金属製の長尺状医療機器や、ウレタン製の長尺状医療機器や、水素結合を形成し得る基を有する高分子材料またはポリウレタンによって金属をコートした長尺状医療機器を、基材10として用い、基材10の表面に既述した親水性被膜を形成した長尺状医療機器とすることができる。本実施形態の長尺状医療機器としては、例えば、ガイドワイヤまたはカテーテルを、特に好適な形態として挙げることができる。具体的には、例えば、金属製のガイドワイヤ、先端部のコイル層の表面にウレタン被覆層を備えるガイドワイヤ(ウレタンジャケットガイドワイヤ)、あるいは、ポリウレタン製の中空シャフトを備えるカテーテル等を、基材として用いることができる。
(b)線状のコアワイヤと、該コアワイヤの外周の少なくとも一部に線材が螺旋状に巻回されたコイル層と、該コイル層の表面に形成された被膜であって、親水性構造を有する重合単位(B)を含有する共重合体(C)が既述した式(1)~(3)のいずれかで示される構造により架橋された高分子材料により形成された被膜と、を備えるガイドワイヤ。
(c)線状のコアワイヤと、該コアワイヤの外周の少なくとも一部に線材が螺旋状に巻回されたコイル層と、該コイル層の外周に設けられた被覆層と、該被覆層の表面に形成された被膜であって、親水性構造を有する重合単位(B)を含有する共重合体(C)が上記式(1)~(3)のいずれかで示される構造により架橋された高分子材料により形成された被膜と、を備えるガイドワイヤ。
(d)管状部材と、該管状部材の表面に形成された被膜であって、親水性構造を有する重合単位(B)を含有する共重合体(C)が上記式(1)~(3)のいずれかで示される構造により架橋された高分子材料により形成された被膜と、を備えるカテーテル。
(e)管状部材と、該管状部材の片端に配置されたバルーンと、該バルーンの表面に形成された被膜であって、親水性構造を有する重合単位(B)を含有する共重合体(C)が上記式(1)~(3)のいずれかで示される構造により架橋された高分子材料により形成された被膜と、を備えるカテーテル。
サンプルS1の長尺状医療機器の作製に用いた共重合体は、環状カーボネート構造を有する重合単位(A)として、(2-オキソ-1,3-ジオキソラン-4-イル)メチルメタクリレート(GCMA)由来の構造単位を含有する。また、サンプルS1の作製に用いた共重合体は、親水性構造を有する重合単位(B)として、N-メタクリロイルアミノプロピル-N,N-ジメチルアンモニウム-α-N-メチルカルボキシベタイン(MAMCMB)、および、メトキシポリエチレングリコールメタクリレート(M90G)由来の構造単位を含有する。具体的には、サンプルS1の作製に用いた共重合体は、GCMA由来の構造単位を10モル%含み、MAMCMB由来の構造単位を40モル%含み、M90G由来の構造単位を50モル%含む。以下では、サンプルS1作製に用いた共重合体を、「Poly(MAMCMB-M90G-GCMA)40:50:10」とも表記する。「Poly(MAMCMB-M90G-GCMA)40:50:10」を、以下の(12)式に示す。「Poly(MAMCMB-M90G-GCMA)40:50:10」は、ランダム共重合体であるが、(12)式では、上記した3種の構造単位が連続して重合する部位を示している。(12)式では、環状カーボネートを破線で囲んで示した。
潤滑性の評価として、作製したサンプルS1~S7の各々を、生理食塩水に浸漬し、その後指先でコーティング部分を挟んで擦過させた際の感触を比較した。評価結果を、以下の表1にまとめて示す。表1では、滑り評価の結果が良好であるサンプルの評価結果は「A」としており、滑り評価の結果が不良であるサンプルの評価結果は「B」としている。表1に示すように、サンプルS1~S5では、サンプルS6,S7とは異なり、良好な潤滑性が得られることが確認された。すなわち、基材上でコーティング剤の架橋反応を進行させることで、基材に密着して十分な潤滑性を示す親水性被膜が形成されることが確認された。また、サンプルS4とサンプルS5のように、親水性被膜の形成に用いる共重合体の分子量が異なっていても、例えば重量平均分子量が4万から9万という広い範囲にわたって、良好な潤滑性を示す親水性被膜が形成されることが確認された。
膜強度の評価として、作製したサンプルS1~S7の各々を、水中環境下において、ウレタンローラ(AXFM-D25-L15-V8-N、株式会社ミスミ製)とステンレス鋼板(SUS304板、30×30mm)とで挟み、0.981Nの荷重をかけた状態で、ロードセルに接続した一端を引き抜いた際の抵抗値を測定した。同様の測定を連続して50回行い、1回目の初期抵抗値と、50回目抵抗値とを比較して、膜強度を評価した。抵抗値が小さいほど、膜強度が優れていると評価できる。評価結果を、以下の表2にまとめて示す。表2に示すように、サンプルS1~S5では、サンプルS6,S7とは異なり、50回目でも低い抵抗値を示すことが確認された。すなわち、基材上でコーティング剤の架橋反応を進行させることで、基材に密着して良好な膜強度を示す親水性被膜が形成されることが確認された。また、サンプルS4とサンプルS5のように、親水性被膜の形成に用いる共重合体の分子量が異なっていても、例えば重量平均分子量が4万から9万という広い範囲にわたって、基材に密着して良好な膜強度を示す親水性被膜が形成されることが確認された。
金属基材に対する密着性の評価においては、サンプルS1~S7として説明した長尺状医療機器ではなく、基材としてステンレス鋼製の板材を用いたモデルを用いた。すなわち、金属基材としてステンレス鋼製の板材を用い、環状カーボネート構造を有する重合単位(A)と親水性構造を有する重合単位(B)とを備える共重合体により形成した被膜と、ポリウレタン被膜(比較例)とについて、密着性を比較した。環状カーボネート構造を有する重合単位(A)と親水性構造を有する重合単位(B)とを備える共重合体としては、サンプルS1と同様に「Poly(MAMCMB-M90G-GCMA)40:50:10」を用い、さらに硬化剤としてヘキサメチレンジアミン(HMDA)を用いて、サンプルS1と同様の条件で基板上に被膜を形成した。比較例のポリウレタン被膜は、医療用ポリウレタンとして公知のPellethane2360-80AE(Lubrizol社製)を用いて、ディップ法により形成した。
ウレタン基材として、金属コイル部の表面にウレタン被覆層を備えるガイドワイヤ(ウレタンジャケットガイドワイヤ)を用い、被膜の密着性の評価を行った。具体的には、環状カーボネート構造を有する重合単位(A)と親水性構造を有する重合単位(B)とを備える共重合体により形成した被膜と、環状カーボネート構造を有する重合単位(A)に代えて、エポキシ基を含有するモノマ由来の構造単位を備える共重合体により形成した被膜と、について、密着性を比較した。環状カーボネート構造を有する重合単位(A)と親水性構造を有する重合単位(B)とを備える共重合体としては「Poly(MAMCMB-M90G-GCMA)40:50:10」を用いており、コーティングされたガイドワイヤは、既述したサンプルS2と同じ構成を有する。また、環状カーボネート構造を有する重合単位(A)に代えてエポキシ基を含有するモノマ由来の構造単位を備える共重合体としては、4-ヒドロキシブチルアクリレートグリシジルエーテル(4HBAGE)由来の構造単位を備える共重合体である「Poly(MAMCMB-M90G-4HBAGE)40:50:10」を用いた。ウレタン基材に対する密着性の評価は、既述した「膜強度の評価」と同様の方法により行った。
親水性構造を有する重合単位(B)を変更した種々の共重合体を用いて、比較的低温の温度条件下で親水性被膜の形成を行い、重合単位(B)の触媒作用を評価した。具体的には、親水性構造を有する重合単位(B)として、N,N-ジメチルアクリルアミド(DMAAm)、N-ビニルピロリドン(NVP)、N-メタクリロイルアミノプロピル-N,N-ジメチルアンモニウム-α-N-メチルカルボキシベタイン(MAMCMB)、およびメトキシエチルアクリレート(MEA)の各々に由来する構造単位を有する共重合体を作製して評価した。いずれの共重合体も、環状カーボネート構造を有する重合単位(A)として、(2-オキソ-1,3-ジオキソラン-4-イル)メチルメタクリレート(GCMA)由来の構造単位を含有する。そして、各共重合体は、重合単位(A)を10モル%含むと共に、重合単位(B)を90モル%含む。上記した各共重合体のうち、重合単位(B)としてDMAAm由来の構造単位を有する共重合体は、既述したサンプルS5で用いた共重合体と同じであり、重量平均分子量は約4万である。重合単位(B)として、NVP由来の構造単位を有する共重合体は、重量平均分子量が約5.5万であり、MAMCMB由来の構造単位を有する共重合体は、重量平均分子量が約10万であり、MEA由来の構造単位を有する共重合体は、重量平均分子量が約4万であった。
Claims (7)
- 長尺状医療機器であって、
基材の表面に被膜が形成されており、
前記被膜は、親水性構造を有する重合単位を含有する共重合体が以下の式(1)~(3)のいずれかで示される構造により架橋された高分子材料により、構成されている
長尺状医療機器。
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(R1)-CH(OH)- … (1)
-CH(OH)-CH(R1)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (2)
-CH(CH(R1)-OH)-O-C(=O)-NH-R2-NH-C(=O)-O-CH(CH(R1)-OH)- … (3)
(各式中、R1は、同一であっても異なっていてもよく、水素原子、炭素数1以上の直鎖状アルキル基、または炭素数1以上の分岐状のアルキル基を表す。R2は、炭素数1以上のアルキレン基、炭素数3以上の脂環式構造を含む2価の脂環式炭化水素基、または炭素数6以上の芳香環構造を含む2価の芳香族基であって、前記アルキレン基、前記脂環式炭化水素基、および前記芳香族基は、炭素原子間に-NR3-(R3は、水素原子または炭素数1~8のアルキル基)で表される2価の基を有していてもよい。) - 請求項1に記載の長尺状医療機器であって、
前記親水性構造は、電荷的に中性である
長尺状医療機器。 - 請求項1または2に記載の長尺状医療機器であって、
前記親水性構造は、ベタイン構造、アミド構造、ラクタム構造、および、ポリアルキレンオキシド構造からなる群から選択される少なくとも1種の構造を含む
長尺状医療機器。 - 請求項3に記載の長尺状医療機器であって、
前記親水性構造は、正電荷を有する官能基として4級アンモニウムを備えるベタイン構造と、3級アンモニウムを備えるアミド構造と、のうちの少なくとも一方を含む
長尺状医療機器。 - 請求項1から4までのいずれか一項に記載の長尺状医療機器であって、
前記基材は、該基材の表面に、金属、水素結合を形成し得る基を有する高分子材料、ポリウレタンのうちの少なくとも1種を含む
長尺状医療機器。 - 請求項1から5までのいずれか一項に記載の長尺状医療機器であって、
該長尺状医療機器は、ガイドワイヤまたはカテーテルである
長尺状医療機器。 - 長尺状医療機器の製造方法であって、
前記医療機器に備えられた基材上に、環状カーボネート構造を有する重合単位(A)と、親水性構造を有する重合単位(B)と、を含有する共重合体(C)を含むコーティング剤を塗布し、
前記基材上で、前記コーティング剤を硬化させる
長尺状医療機器の製造方法。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011505179A (ja) * | 2007-11-23 | 2011-02-24 | テヒニーシェ ウニヴェルジテート ウィーン | ポリビニルアルコールベースの生分解性、生体適合性、架橋ポリマーの調製用重合硬化性組成物 |
JP2011515515A (ja) * | 2008-03-20 | 2011-05-19 | バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト | 親水性ポリウレタン分散体 |
JP2011110392A (ja) | 2009-11-24 | 2011-06-09 | Trs:Kk | 内視鏡用ガイドワイヤー |
JP2012533660A (ja) * | 2009-07-23 | 2012-12-27 | エッセンス・べスローテン・フエンノートシャップ | ポリマー、好ましくは(アルキル)アクリロイルポリカーボネートを作る方法、得られるポリマーおよび(アルキル)アクリロイルポリカーボネート、ならびにこれを含むバイオデバイス |
WO2015137259A1 (ja) | 2014-03-11 | 2015-09-17 | テルモ株式会社 | 医療用具の製造方法および医療用具 |
JP2019058466A (ja) * | 2017-09-27 | 2019-04-18 | Jsr株式会社 | 医療用セメントおよびその使用 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011505179A (ja) * | 2007-11-23 | 2011-02-24 | テヒニーシェ ウニヴェルジテート ウィーン | ポリビニルアルコールベースの生分解性、生体適合性、架橋ポリマーの調製用重合硬化性組成物 |
JP2011515515A (ja) * | 2008-03-20 | 2011-05-19 | バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト | 親水性ポリウレタン分散体 |
JP2012533660A (ja) * | 2009-07-23 | 2012-12-27 | エッセンス・べスローテン・フエンノートシャップ | ポリマー、好ましくは(アルキル)アクリロイルポリカーボネートを作る方法、得られるポリマーおよび(アルキル)アクリロイルポリカーボネート、ならびにこれを含むバイオデバイス |
JP2011110392A (ja) | 2009-11-24 | 2011-06-09 | Trs:Kk | 内視鏡用ガイドワイヤー |
WO2015137259A1 (ja) | 2014-03-11 | 2015-09-17 | テルモ株式会社 | 医療用具の製造方法および医療用具 |
JP2019058466A (ja) * | 2017-09-27 | 2019-04-18 | Jsr株式会社 | 医療用セメントおよびその使用 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024004573A1 (ja) * | 2022-06-28 | 2024-01-04 | 朝日インテック株式会社 | 長尺状医療機器および長尺状医療機器の製造方法 |
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