WO1998046659A1 - Polymeres biocompatibles - Google Patents
Polymeres biocompatibles Download PDFInfo
- Publication number
- WO1998046659A1 WO1998046659A1 PCT/JP1998/001702 JP9801702W WO9846659A1 WO 1998046659 A1 WO1998046659 A1 WO 1998046659A1 JP 9801702 W JP9801702 W JP 9801702W WO 9846659 A1 WO9846659 A1 WO 9846659A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon atoms
- group
- alkyl group
- polyurethan
- aryl group
- Prior art date
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- 229920000249 biocompatible polymer Polymers 0.000 title description 2
- 229920002635 polyurethane Polymers 0.000 claims abstract description 84
- 230000002785 anti-thrombosis Effects 0.000 claims abstract description 81
- 239000004814 polyurethane Substances 0.000 claims abstract description 52
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- 125000005702 oxyalkylene group Chemical group 0.000 claims abstract description 8
- NJNWCIAPVGRBHO-UHFFFAOYSA-N 2-hydroxyethyl-dimethyl-[(oxo-$l^{5}-phosphanylidyne)methyl]azanium Chemical group OCC[N+](C)(C)C#P=O NJNWCIAPVGRBHO-UHFFFAOYSA-N 0.000 claims abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 127
- 229920000642 polymer Polymers 0.000 claims description 87
- 150000001875 compounds Chemical class 0.000 claims description 63
- -1 diisocyanate compound Chemical class 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 47
- 125000000217 alkyl group Chemical group 0.000 claims description 45
- 229910052739 hydrogen Inorganic materials 0.000 claims description 42
- 150000002009 diols Chemical class 0.000 claims description 41
- 125000003118 aryl group Chemical group 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 38
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 33
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 32
- 239000001257 hydrogen Substances 0.000 claims description 32
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 24
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- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 22
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 19
- 229920002683 Glycosaminoglycan Polymers 0.000 claims description 18
- 239000003960 organic solvent Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
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- 239000004970 Chain extender Substances 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
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- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
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- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- 241000287462 Phalacrocorax carbo Species 0.000 claims 1
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- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 8
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 7
- 208000007536 Thrombosis Diseases 0.000 description 7
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 7
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- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 7
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- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 description 1
- VKIRRGRTJUUZHS-UHFFFAOYSA-N cyclohexane-1,4-diamine Chemical compound NC1CCC(N)CC1 VKIRRGRTJUUZHS-UHFFFAOYSA-N 0.000 description 1
- 125000004956 cyclohexylene group Chemical group 0.000 description 1
- AVJBPWGFOQAPRH-FWMKGIEWSA-L dermatan sulfate Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@H](OS([O-])(=O)=O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](C([O-])=O)O1 AVJBPWGFOQAPRH-FWMKGIEWSA-L 0.000 description 1
- 229940051593 dermatan sulfate Drugs 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
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- 239000012895 dilution Substances 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
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- DZGCGKFAPXFTNM-UHFFFAOYSA-N ethanol;hydron;chloride Chemical compound Cl.CCO DZGCGKFAPXFTNM-UHFFFAOYSA-N 0.000 description 1
- ZRSDQBKGDNPFLT-UHFFFAOYSA-N ethanol;oxolane Chemical compound CCO.C1CCOC1 ZRSDQBKGDNPFLT-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
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- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- OZIMXLFSRSPFAS-UHFFFAOYSA-N heptane-2,6-diol Chemical compound CC(O)CCCC(C)O OZIMXLFSRSPFAS-UHFFFAOYSA-N 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- YIDYNMMWQYHXTH-UHFFFAOYSA-N hexyl cyanate Chemical compound CCCCCCOC#N YIDYNMMWQYHXTH-UHFFFAOYSA-N 0.000 description 1
- 229920002674 hyaluronan Polymers 0.000 description 1
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- KXCLCNHUUKTANI-RBIYJLQWSA-N keratan Chemical compound CC(=O)N[C@@H]1[C@@H](O)C[C@@H](COS(O)(=O)=O)O[C@H]1O[C@@H]1[C@@H](O)[C@H](O[C@@H]2[C@H](O[C@@H](O[C@H]3[C@H]([C@@H](COS(O)(=O)=O)O[C@@H](O)[C@@H]3O)O)[C@H](NC(C)=O)[C@H]2O)COS(O)(=O)=O)O[C@H](COS(O)(=O)=O)[C@@H]1O KXCLCNHUUKTANI-RBIYJLQWSA-N 0.000 description 1
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- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004998 naphthylethyl group Chemical group C1(=CC=CC2=CC=CC=C12)CC* 0.000 description 1
- 125000004923 naphthylmethyl group Chemical group C1(=CC=CC2=CC=CC=C12)C* 0.000 description 1
- 230000014508 negative regulation of coagulation Effects 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- GPCKFIWBUTWTDH-UHFFFAOYSA-N pentane-3,3-diamine Chemical compound CCC(N)(N)CC GPCKFIWBUTWTDH-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical group [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 description 1
- 102000020233 phosphotransferase Human genes 0.000 description 1
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- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
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- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- 238000001953 recrystallisation Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 125000006839 xylylene group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3878—Low-molecular-weight compounds having heteroatoms other than oxygen having phosphorus
- C08G18/3889—Low-molecular-weight compounds having heteroatoms other than oxygen having phosphorus having nitrogen in addition to phosphorus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L33/00—Antithrombogenic treatment of surgical articles, e.g. sutures, catheters, prostheses, or of articles for the manipulation or conditioning of blood; Materials for such treatment
- A61L33/06—Use of macromolecular materials
- A61L33/068—Use of macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Definitions
- the present invention relates to biocompatible polyurethan or polyurethan urea, and particularly when used as a medical material that comes into direct contact with a living body or a biological component.
- the present invention relates to a polyurethane or a polyurethane urea exhibiting excellent antithrombotic properties.
- polymer materials with excellent processability, elasticity and flexibility have been widely used as medical materials, such as artificial kidneys, artificial lungs, assisted circulation devices, and artificial blood vessels. Its use as disposable products such as artificial organs, syringes, blood bags, and cardiac catheters is expected to expand further in the future.
- These medical materials are required to have sufficient mechanical strength and durability, as well as safety to the living body, in particular, the property that blood does not coagulate when it comes into contact with blood, that is, antithrombotic properties.
- Conventional methods for imparting antithrombotic properties to medical materials include: (1) a fibrinolytic activator such as mucopolysaccharide perokinase having antithrombotic activity such as heparin on the surface of the material; (2) Negative charge or hydrophilicity by modifying the material surface And (3) a method of inactivating the surface of a material.
- a fibrinolytic activator such as mucopolysaccharide perokinase having antithrombotic activity such as heparin on the surface of the material
- Negative charge or hydrophilicity by modifying the material surface
- a method of inactivating the surface of a material when heparin is used in the method (1) (hereinafter, abbreviated as “parin ridou on the surface”), the method (A) (B) a method of coating a material surface with an organic solution of heparin solubilized in an organic solvent, (C) a method of coating a material with a thionic group. The method is
- the antithrombotic effect of the heparin oral kinase on the surface or the dissolving performance of the formed thrombus is exerted in the initial stage of the introduction, and the method may be used for a long time.
- These antithrombotic agents are eluted, and the performance generally tends to decrease. That is, in the methods (A), (B) and (C), heparins are usually easily detached by long-term use under physiologically active conditions, and they can be implanted in a living body for a long time. Sufficient performance cannot be obtained as a medical material used.
- the material obtained in (D) has the advantage that it is difficult to be desorbed because heparin is covalently bonded.However, conventional bonding methods often use heparin. The drawback is that it gives conformational changes to its constituents, D-glucose and D-gnoreonic acid, and reduces the anticoagulant effect.
- a method for imparting antithrombotic properties to a material there is a method of introducing a functional group having biocompatibility.
- a fibrinolytic activator such as mucopolysaccharide perokinase having anticoagulant activity such as heparin
- the antithrombotic activity will be lost if those substances elute. It is difficult to maintain long-term performance.
- a material into which a biocompatible functional group is introduced can maintain antithrombotic properties for a long period of time even after contact with a living body.
- phospholinolecoline structure is similar to the phospholipids forming the biological membrane, that is, phosphatidylcholine.
- polymer materials having a phosphorylcholine structure in the molecule have high affinity for living organisms and are useful as antithrombotic materials. is there.
- a polymer containing 2-methacryloyloxyshethylphosphorylcholine has a structure similar to phosphatidylcholine, one of the components of the outer wall of the cell membrane, and It has been reported that by actively adsorbing native phospholipids, a biomembrane-like surface is formed and excellent blood compatibility is obtained (see, for example, Japanese Patent Application Laid-Open No. 4 — 325 Publication, JP-A-63-925 Publication, etc.). It has also been reported that by introducing a phosphorylcholine group into the main chain of polyurethan, similarly excellent blood compatibility can be obtained (Japanese Patent Application Laid-Open No. Sho 62-62).
- the main purpose of the present invention is to provide polyurethan or polyurethan urea with excellent biocompatibility.
- An object of the present invention is to provide a polyurethan or a polyurethan urea having an antithrombotic property capable of stably exhibiting an excellent antithrombotic property even in the case of performing the treatment.
- Still another object of the present invention is to provide a medical material using polyletan or polyletanrea having excellent antithrombotic properties.
- the inventors of the present invention have made intensive studies in view of the above problems, and as a result, a specific structure of a polyurethan or a polyurethanrea having a specific phosphorylcholine group in a side chain has achieved the above object. It was found that it could be done. Furthermore, the present inventor has found that a diol component having a quaternary ammonium group can be used to add a quaternary ammonium to a part of the polyurethan or the polyurethan rare having the above specific structure. A polyurethan or polyurethan derivative via an electrostatic interaction between the ammonium cation and the mucopolysaccharide anion.
- the antithrombotic property can be further improved particularly at the initial stage of contact with a biological component, and excellent antithrombotic performance can be obtained from the initial stage of contact to after long-term contact. They have found that they can be stably exhibited, and have completed the present invention.
- the present invention provides the following biocompatible polyurethan or polyurethan-rea, an antithrombotic coating agent, an antithrombotic medical device material, and an antithrombotic material. It provides sexual medical equipment. 1. General formula (1)
- R 1 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or the following group:
- A is an oxyalkylene group having 2 to 10 carbon atoms, one or more kinds may be mixed, and the bonding order may be either block or random.
- N is an integer of 1 to 30.
- R 4 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a C 7 to 20 carbon group.
- R 2 and R 3 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or a carbon number.
- a biocompatible polyurethan or polyurethane rare containing a phospholinolecoline structure represented by the following formula:
- Polymer 1.0 g is represented by the general formula (1).
- R 1 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or the following group:
- A is an oxyalkylene group having 2 to 10 carbon atoms, one or more kinds may be mixed, and the bonding order may be block or random.
- n is an integer of 1 to 30.
- R 4 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or 7 to 20 carbon atoms. This is an aralkyl group.
- R 2 and R 3 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or a carbon number.
- An active hydrogen-containing compound having a total capacity of 100 mol% of the components (i) to (iv);
- the diol containing a phosphoryl cocoline structure represented by the general formula (1) is at least one kind selected from the compounds represented by the following formulas (2) and (3).
- R 1 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, Or the following group
- R 4 is an alkyl group having 1 to 20 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
- R 2 and R 3 are an alkyl group having 1 to 20 carbon atoms and an alkyl group having 1 to 20 carbon atoms, and R 2 and R 3 are an alkyl group having 7 to 20 carbon atoms.
- R 5 and R 6 are each an aralkyl group having 2 to 10 carbon atoms.
- R 5 and R 6 are the same but different It may be.
- m is an integer from 1 to 10;
- R 7 in the formula (3) is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms. ].
- R 8 , R 9 and R 1 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms. And R 8 , R 9 and R 1 may be the same or different, and one of R 8 , R 9 and R 1 ° is a hydrogen atom X is an anionic group or an anionic compound, or a quaternary ammonium group represented by the following formula: or a compound represented by the following general formula (5):
- R 9 (Wherein, 8 and 1 9, Ri ⁇ La alkyl group der alkyl group, C 6 -C 1 2 ⁇ rie group or C 7 -C 2 0 1-2 0 carbon atoms, R 8 And R 9 may be the same or different, and one of R 8 and R 9 may be a hydrogen atom, and X is anionic. Or a polyanionic compound according to item 1 above, wherein the main chain contains a quaternary ammonium group represented by the formula: rare.
- the amount of these diols used is 0.1 mol% or more when the total amount of the active hydrogen-containing compound is 100 mol%, and the amount of the diol used in the above item 3 is at least 0.1 mol%.
- R 8 , 9 and 1 In the formulas (6) to (8), R 8 , 9 and 1 . It represents an alkyl group having 1 to 2 0 carbon atoms, ⁇ Li Lumpur group having 6 to 1 2 carbon atoms, or Ri Ararukiru group der carbon atoms 7 ⁇ 2 0, R 8, R 9 and R 1 D, respectively It can be the same or different. Further, any one of R 8 , R 9 and R 1 ° may be a hydrogen atom.
- X is an anionic group or an anionic compound.
- R 1 1 and R 1 2 is Ri Al sharp emission groups der of 2 to 1 0 carbon atoms, R 1 1 and R 12 is rather good even Ttei different even same respectively, R 13 is the number of carbon atoms An alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a C 7 to 20 carbon group. Is an aralkyl group, and p is an integer of 2 to 10. ].
- An antithrombotic coating agent comprising the polyurethane or the polyurethan-rea according to any one of the above items 1 to 9 in an organic solvent.
- a material for an antithrombotic medical device comprising a polyurethane or a polyurethan-rea as described in any one of the above items 1 to 9 as an active ingredient.
- polyurethanes polyurethanes
- R 1 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, carbon number? To 20 aralkyl groups or the following groups
- A is an oxyalkylene group having 2 to 10 carbon atoms, one or more kinds may be mixed, and the bonding order may be block or random.
- N is an integer from 1 to 30.
- R 4 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or 7 to 20 carbon atoms. This is an aralkyl group.
- R 2 and R 3 each have 1 to 20 carbon atoms. Or an aralkyl group having 6 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, which may be the same or different.
- a phosphorylcholine having a phosphatidylcholine-like structure forming a biofilm is introduced into a side chain.
- biocompatibility is improved as compared with the case where it is introduced into the main chain, and extremely excellent antithrombotic properties can be exhibited.
- This is generally because the main chains of the polymers are entangled, and if a functional group that exerts performance is present in the main chain, it is difficult to exert its performance sufficiently, whereas the side chain has It is considered that the presence of the performance-exhibiting site improves the motility because the movement of the functional group is not suppressed by the polymer main chain, and the performance can be sufficiently exerted.
- the polyurethanes of the present invention have good biocompatibility and can exhibit very excellent antithrombotic properties because phosphorylcholine is introduced into the side chain. It is considered that the motility of phosphocholin is improved, and the effect of the biomembrane-like structure is greatly enhanced.
- polyurethanes of the present invention include the phosphorylcholine structure represented by the above general formula (1) in the side chain and the following general formula (4) R one N + — RX (4)
- R 8 , R 9 and R 1 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms.
- Ri, R 8, R 9 and R 1 D in Ttei to be. of al different even I respectively same Jidea, R 8, R 9 ⁇ beauty R 1 ° sac Chiizure or one of a hydrogen atom X is an anionic group or an anionic compound, or a quaternary ammonium group represented by the following formula: or a compound represented by the following general formula (5):
- R 8 and R 9 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or an aralkyl group having 1 to 20 carbon atoms, 8 and R 9 may be the same or different, and any one of R 8 and R 9 may be a hydrogen atom, X is an anionic group or Is an anionic compound.)
- a quaternary ammonium represented by) When the ammonium group is contained in the main chain, the antithrombotic activity of the polyletans is caused by the electrostatic interaction between the ammonium cation and the mucopolysaccharide anion. Mucopolysaccharides having the following properties can be introduced.
- the mucopolysaccharide having antithrombotic properties works effectively at the initial stage of contact with a living body or a biological component, and the antithrombotic effect is obtained.
- the pluggability can be further improved, and the phosphorylcholine structure is effective even if mucopolysaccharide elutes from the material after a long period of use. It can maintain good antithrombotic properties and can stably exhibit good antithrombotic properties from the initial stage of contact with biological components to after long-term contact.
- the quaternary ammonium group represented by the above formula (4) and the quaternary ammonium group represented by the above formula (5) may have only one of them in the molecule. Alternatively, both may exist simultaneously.
- an alkyl group having 1 to 20 carbon atoms is a straight-chain or branched-chain alkyl group or a cycloalkyl group.
- Examples include tyl, ethyl, propyl, isopropyl, butyl, tert-butyl, pentyl, hexyl, cyclohexyl and the like.
- An aryl group having 6 to 12 carbon atoms refers to a substituent such as methyl, ethyl, butyl, methoxy, or ethoxy.
- Examples of the aranoalkyl group having 7 to 20 carbon atoms include benzyl, phenyl, phenylbutyl, diphenylmethyl, triphenylmethyl, naphthylmethyl, naphthylethyl and the like.
- the alkylene group having 2 to 10 carbon atoms is a straight-chain or branched-chain alkylene group, and specific examples thereof include ethylene, propylene, butylene, and polyethylene. Examples thereof include dimethylene, hexanemethylene, isopropylene, and 2-methylhexylene.
- the polyurethanes of the present invention can be obtained by reacting an active hydrogen-containing compound with a diisocyanate compound.
- a diol having a phosphorolinolecholine structure represented by the general formula (1) may be used, and if necessary, other active hydrogen-containing compounds may be used. Diols and Z or diamine can be used. These active hydrogen-containing compounds are not particularly limited. Therefore, a compound containing active hydrogen that is reactive to the isocyanate may be appropriately selected and used. However, in addition to biocompatibility, a polymer having good mechanical strength and durability can be used. In order to obtain urethanes, it is preferable to use a combination of the following active hydrogen-containing compounds (i) to (iv).
- the diol containing the phosphorylcholine structure represented by (1) is not particularly limited as long as it contains the phosphorylcholine structure portion represented by the general formula (1).
- R 1 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or Base R 4- (A) n-
- A is an oxyalkylene group having 2 to 10 carbon atoms, one or more of which may be mixed, and the bonding order may be block or random.
- the len group include oxyethylene, oxypropylene, oxybutylene, oxypentamethylene, and oxyhexamethylene group.
- n is an integer from 1 to 30, preferably from 3 to 15, and more preferably from 3 to 10.
- R 4 has 1 to 30 carbon atoms.
- R 2 and R 3 are an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and are the same as each other. It may be different.
- m is an integer from 1 to 10 and preferably an integer from 1 to 7.
- R 7 in the formula (3) is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms. is there.
- m 3
- m l
- R 4 methyl, ethylene, propyl, butyl, octyl, rauryl, cetyl, or oleyl
- oxypropylene n is, for example, 3 to 20
- R 1 is a group R 4 — (A) n ⁇ are a polyoxyalkylene group having a hydrophilic group at a terminal of a side chain.
- R 1 is a group R 4 — (A) n ⁇ are a polyoxyalkylene group having a hydrophilic group at a terminal of a side chain.
- the presence of the compound improves the hydrophilicity of the material and makes the material more biocompatible.
- the effect of the presence of such a hydrophilic group is that the presence of the phosphorinolecoline in the side chain improves the motility of the phosphorinolecoline. Acts synergistically to more effectively exert blood coagulation factor activity inhibitory effect and platelet adhesion inhibitory effect.
- R 5 , R 6 and R 7 are
- a known compound 2—Cro-Port—2—Oxo-1,3,2—Dioxaphosphorane (COP)
- COP 2—Cro-Port—2—Oxo-1,3,2—Dioxaphosphorane
- THF tetrahydrofuran
- R ⁇ H and triethylamine are slowly dropped in a nitrogen stream at a low temperature of about 130 ° C in a nitrogen stream.After dropping, the solution is cooled to 110 ° C under a nitrogen stream. Perform the reaction for about 3 to 5 hours below.
- the obtained ROP and the tertiary amine-containing diol were dissolved in equimolar amounts in dry acetonitrile.
- the reaction is carried out in a closed reactor at about 50 to 100 ° C for about 12 to 72 hours.
- the solvent is distilled off under reduced pressure, and the residue is washed several times with cyclohexane to obtain the compound represented by the general formula (2) or (3). Can be obtained.
- Polymer diols include polyoxyalkylene glycol, polycarbonate gel, polyestenoresole, polybutadiene gel, Polyisoprenediol, hydrogenated polyisoprene diol and the like can be used.
- the polyalkylene glycol is defined as having 2 to 8 carbon atoms, preferably ethylene, tetramethylene, hexamethylene, etc.
- a hydroxyl group is bonded to both ends of a polyalkylene in which about 2 to 6 linear or branched alkylene groups are bonded by an ether bond.
- a monomer diol having a repeating unit number of about 4 to 200 as the polymer diol, and the repeating unit of the monomer is preferably used. It is more preferable to use one with a number of about 10 to 150. By using such a polymer diol, it is possible to impart appropriate flexibility to the resulting polyurethanes.
- (iii) Sales extender As the chain extender, at least one selected from alkylene diol and alkylenediamine may be used.
- alkylene diol an alkylene diol having a hydroxyl group at both terminals of a linear or branched alkylene group having about 2 to 8 carbon atoms, preferably about 2 to 6 carbon atoms is used. This is preferred.
- alkylenediols suitable for use in the present invention include ethylene glycol, propylene glycol, butylene glycol, 1, 6—Hexanediol, neopentyl glycol, and other phenolic glycols.
- phenolic resin examples include ethylene chloride, propylene resin, butylene resin, hexamethyl resin, and the like.
- chain extender a component selected from the above-mentioned alkylene diols and alkylene diamines can be used singly or as a mixture of two or more.
- the resulting polyurethanes have an appropriate hardness. Can be granted.
- diols and / or diamines other than the above (i) to (iiii) can be used as other active hydrogen-containing compounds.
- active hydrogen-containing compounds are not particularly limited, and an appropriate diol and Z or diamine may be selected and used depending on desired properties. One type or a mixture of two or more types may be used. It is also possible to use it.
- a diol containing a functional group other than the above phosphorylcholine structure and Z or diamine may be used.
- other functional groups include a hydroxyl group for imparting hydrophilicity to the material, a carboxyl group, a sulfonate group for imparting a negative charge to the material, and a reaction of the material with light.
- diazo groups and azide groups to improve the properties. Diols and diamines containing these functional groups can be appropriately selected from known compounds and used.
- R 1 0 (Wherein R 8 , R 9 , R 1 Q and X are the same as those described above) in the side chain, or a compound represented by the following general formula (5):
- R 8 , R 9 and X are the same as above
- the hydrogen-containing compound for example, diols containing a quaternary ammonium group represented by the following formulas (6) to (8) may be used alone or in combination of two or more.
- R 11 and R 12 are an alkylene group having 2 to 10 carbon atoms, and R 11 and R 12 may be the same or different.
- R 13 is an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and p is an integer of 2 to 10 o
- Ru WHATSOEVER is not particularly limited, is the preferred correct thing, Ha Russia gain N'i on-such as salt Motoi on-Roh, 0 Toluenesulfonate Examples include anion, ion acetate, trifluoroacetic acid ion, and perchlorate ion.
- diols containing a quaternary ammonium group can be obtained, for example, by dissolving or dispersing a corresponding tertiary amine in an organic solvent, adding a quaternizing agent thereto, and then distilling off the solvent. Then, impurities can be removed by washing with an organic solvent, and the obtained quaternary ammonium diol can be obtained by purification by a method such as recrystallization.
- p 3
- R 10 hydrogen atom, methyl, ethyl, Propyl, isopropyl, butynole, tert-butyl, hexinole, cyclohexylene, octyl, rauryl, myricyl, cetyl or stealine
- X— Fluorine ion, chlorine ion, bromine ion, iodine ion, paratonolene sulfonate ion, perchlorate ion, acetate ion, Compounds such as trifluoroacetic acid ion.
- p 3
- R 10 Hydrogen atom, methyl, ethyl, propyl, isopropyl, butyl, tert-butylinole, hexinole, cyclohexyl, octyl, rauryl, myricil, cetyl or stearyl Yes
- X— is fluorine ion, chlorine ion, bromine ion, iodine ion, p-toluenesulfonate ion, perchlorate ion, acetate ion And trifluoroacetic acid ion.
- p l
- R 10 hydrogen atom, methyl, ethyl, pro Pill, isopropyl, butyl, tert-butyl, hexyl, cyclohexyl, octyl, rauryl, myricyl, cetyl or stearyl, where X is Fluorine ion, chlorine ion, bromine ion, iodine ion, no. Compounds such as ion-toluenesulfonate, ion-perchlorate, ion-acetate, and ion-trifluoroacetate.
- R - R 1 2 main switch les emissions
- X Nitrogen ion, chlorine ion, bromine ion, iodine ion, p-toluenesulfonate ion, perchlorate ion, acetate ion, trifluoro Compounds such as acetic acid ion.
- R 9 hydrogen atom, methyl, ethyl, propyl, isopropyl, butyl, tert -Butyl, hexyl, cyclohexyl, octyl, lauril, myricyl, cetinole or stealine
- X is fluorine ion, chlorine ion
- Compounds such as bromine ion, iodine ion, paratonolene sulfonate ion, perchlorate ion, acetate acetate and trifluoroacetonate ion.
- R 9 hydrogen atom, methyl, ethyl, propyl, isopropyl, butyl, tert-ethyl.
- cetyl X is fluorine ion, chlorine ion, bromine ion, iodine ion, p-toluenesulfonate ion, perchlorate ion.
- Compounds such as ionic acid, acetic acid ion, and trifluoroacetic acid ionic compound.
- These compounds may be used alone or as a mixture of two or more.
- the proportion of each component used in the active hydrogen-containing compound is not particularly limited. However, when the total amount of the active hydrogen-containing compound is 100 mol%, (i) represented by the general formula (1) 0.1 to 50 mol% of a diol having a phosphonolinolecoline structure, (ii) 1 to 40 mol% of a polymer diol, (iii) 1 to 90 mol% of a chain extender, and ( iv) Other active hydrogen-containing compounds It is preferable that the content be 30 mol% or less. By using such a compounding ratio, it is possible to obtain polyurethans having excellent biocompatibility and excellent mechanical strength and durability.
- the polyurethanes are represented by the above-mentioned general formula (4) or (5).
- a quaternary ammonium group is introduced, at least one kind of the diol containing a quaternary ammonium group represented by the general formulas (6) to (8) is used in an amount of at least one type.
- the total amount of the active hydrogen-containing compound is 100 mol%, it is preferable that the content be 0.1 mol% or more.
- the content be 30 mol% or less.
- other active hydrogen-containing compounds of (iv) are used in addition to diols containing quaternary ammonium groups, other active hydrogen-containing compounds including diols containing quaternary ammonium groups It is preferable that the total amount of (iv) is not more than 30 mono%.
- the diisocyanate compound is not particularly limited, and may be any of the diisocyanates conventionally used in the production of polyester and any diisocyanate that may be developed in the future. It can be used and may be appropriately selected and used according to the desired characteristics. Specific examples of diisocyanate compounds include ethylenediocyanate, trimethylenediethylene cyanate, tetramethyrenediocyanate, and pentamethine.
- Range Associate Octa Range Associate- ⁇ Deca Dimension Range Associate, Dodeca Methyl Range Associate, Cyclopentine 1 1, 3 — diisocyanate, cyclohexanone 1, 4 — diisocyanate Aliphatic diisocyanates such as 4,4'-methylene viscos (cyclohexylene silicate), isophorone dysocyanate, and 2,4- religion sociate, 2,6—Trenile sociate, 2,4,1 Relief sociate, 2,6—Trelen Mixture with diisocyanate, xylylene — 1,4-diisocyanate, 4, 4 '-diphenylmethane diisocyanate, 4 , 4'-Diphenylprono, 0- isolated, 4-isolated, 1-isolated, m-phenylenediisolated N, p — F-range isocyanate, naphthalene 1, 4, 4 — isocyanate, naphthalen 1, 1, 5 — Lee Seo
- the method for producing the polyurethan or the polyurethan-rea (polyurethans) of the present invention is not particularly limited, and the above-mentioned method is carried out in an organic solvent according to a conventional method. What is necessary is just to react the active hydrogen-containing compound with the diisocyanate compound.
- organic solvent examples include hexamyl phosphoric acid triamide (HMPA), N-methisolepyrrolidone (NMP), N-methyl honolemamide (NMF), N, N — Dimethinolehonolemamide (DMF), N, N — Dimethinoreacetamide (DMAc), Trahydrofuran (THF), toluene, dioxane, and the like can be used, and these organic solvents may be used as a mixture.
- the reaction ratio between the active hydrogen-containing compound and the diisocarbonate compound may be generally set to about 0.7 to 1.5 equivalents of the active hydrogen-containing compound per 1 equivalent of the diisocynate compound. Therefore, it is preferable to use about 0.8 to 1.2 equivalents.
- reaction conditions differ depending on the diisocyanate-to-diol structure used.
- stirring is performed at about 20 to 150 ° C for about 1 to 50 hours in a nitrogen atmosphere.
- An example is a method in which the reaction is performed while the reaction product is purified by a reprecipitation method or the like.
- a diole component such as a diol, a polymer diol, an phenol or a diol having a phosphorolinolecholine structure represented by the general formulas (2) and (3), and the like.
- a prepolymer having an isocyanate group at the terminal is obtained, and the prepolymer is obtained.
- an organic solvent such as HMPA, NMP, NMF, DMF, DMAc, THF, etc.
- a polymerization catalyst such as tin dibutyl dilaurate or tetrabutoxy titan may be added so that the polymerization can proceed efficiently.
- the amount of the polymerization catalyst to be added may be about 10 to 100 ppm based on the entire reaction solution.
- the polyurethanes of the present invention have a weight average molecular weight of about 3,000 to 8,000,000, preferably from 5,000 to 5,500. It is about 0,000.
- the molecular weights described in this specification are values measured using gel permeation chromatography (GPC). — 803 / S, AD-804 / S. AD _806 / S, KD — A series connection of four cables of 802, with 0.1 as the mobile phase. A calibration curve was drawn with polystyrene using DMF in which lithium bromide was dissolved, and the molecular weight was determined by measuring at 50 ° C.
- the polyurethanes of the present invention contain phosphorus derived from the phosphorylcholine structure portion represented by the general formula (1) per 1.0 g of the polymer.
- the number of millimoles (hereinafter abbreviated as meq Zg) force is preferably about 0.03 to 3.00 meq Zg, and 0.06 to 2 More preferably, it is about 80 meq Z g.
- the above-described polyurethanes of the present invention are based on the fact that phosphorylcholine having a phosphatidylcholine-like structure that forms a biological membrane is introduced into a side chain. It has very excellent antithrombotic properties as compared with the case where it is introduced into the main chain.
- a polyoxyalkylene group which is a hydrophilic group
- antithrombotic properties can be more effectively exhibited than when an alkyl group is introduced at the side chain terminal. .
- polyurethanes of the present invention those having a quaternary ammonium group represented by the above general formula (4) or (5) in the molecule have an anticoagulant effect.
- a complex can be formed by electrostatic interaction with mucopolysaccharide.
- the mucopolysaccharides include heparin, chondroitin sulfate, hyaluronic acid, dermatan sulfate, keratan sulfate, and the like.
- Heparin or metal salt of heparin is particularly preferable because of its excellent antithrombotic activity even in the presence of metal salts such as tritium and potassium salts.
- the method for obtaining a complex of a polyurethane containing a quaternary ammonium group represented by the above general formula (4) or (5) and an mucopolysaccharide is not particularly limited. However, for example, an aqueous solution of mucopolysaccharide or a weakly acidic buffer solution (pH about 3 to 6) Then, by immersing the polyurethanes of the present invention at about 20 to 100 ° C. for about 1 to 24 hours, the desired composite can be obtained. it can. The formation of the composite is usually carried out after forming or forming a desired molded body by using the polyesters of the present invention. And are preferred. When the polyurethanes of the present invention are used in combination with other polymers, the above-described immersion treatment can be performed in a mixed state.
- the solutes of the buffer used in the production of the complex include 2— (N—mono holino) ethane norephonic acid and piperazin-1,4—bis ( 2 — Ethane norfonic acid), N — (2 — Acetamide 2 — Amino ethanorephonic acid, N, N — Vis (2 — Hydroxy Ethanol) 1 2—Amino ethane snolefonic acid, 3 _ (N — morpholino) prono, nsulphonic acid, 3 — (N— monoreholino) 1 2—Hydroxyprono, 0 -Sulfuronic acid, 2_ [4- (2—Hydroxyethyl) 1-1-Piperazinyl] ethanesulfonate, etc.
- MES 2— (N—morpholino) ethanesulfonate
- PIPES pyrazine—1,4-bis (2—ethanesulfonate)
- M0PS 3--(N-morpholino) Propansulfonate
- these buffers are used for alcohols such as methanol, ethanol, propanol, isopropanol, tetrahydrofuran, N, N It may be used by mixing with water-miscible organic solvents such as dimethylformaldehyde, N, N-dimethylacetamide.
- the polyurethanes of the present invention have excellent biocompatibility, can exhibit an antithrombotic performance stably over a long period of time, and in particular, various types that require blood compatibility Of the present invention, which can be effectively used as a material for medical devices such as medical instruments and devices, or as a coating agent for these medical devices.
- the use of drugs for such purposes ensures that they have hemocompatibility and stabilize excellent antithrombotic performance.
- Medical instruments and equipment that can be used in the field. Medical devices such as various medical devices and devices requiring blood compatibility, which can use the polyurethanes of the present invention as a coating agent or a material.
- hemodialysis membranes plasma separation membranes
- adsorbents for waste products in blood membrane materials for oxygenator (blood and oxygen barriers), and sheets for heart-lung machines.
- Aortic balloons blood bags, catheters, force nuclei, shunts, and blood circuit statements.
- the polyurethans of the present invention are generally used in the form of THF, HMPA, NMP, NMF, DMF, DMA "Dissolve in organic solvents such as THF-methanol mixed solution, THF-ethanol mixed solution, THF-propanol mixed solution, and apply by coating method, spray method, dipping method, etc.
- the coating agent may be applied to the object to be treated in an appropriate manner.
- blood compatibility may be used.
- Polymer materials conventionally used as materials for various required medical devices for example, polyether urethane, polyurethane, polyurethane urea, poly It may be blended with vinyl chloride, polyester, polypropylene, polyethylene, etc.
- Po Li c les of the present invention in The concentration of the tan is not particularly limited, and may be appropriately determined within a range that is soluble in the organic solvent according to the type of the polyurethane to be used.
- the proportion of the polyurethanes of the present invention is different from that of the polyurethanes of the present invention.
- the total amount of the polymer and the polymer is 100% by weight, it is preferably about 1 to 99% by weight, more preferably about 5 to 80% by weight. New
- the organic solvent is removed, whereby a coating layer made of the polyurethan of the present invention is formed.
- the method for removing the organic solvent is not particularly limited.
- a preferable method is a temperature of about 20 to 100 ° C. in an atmosphere of an inert gas such as nitrogen, argon, or helium. After drying by heating for about 0.1 to 180 minutes under reduced pressure, drying under reduced pressure at about 20 to 100 ° C. for about 0.1 to 36 hours can be mentioned.
- the thickness of the coating layer to be formed is not particularly limited. Normally, 0.1 to: L is about 0 ⁇ m, preferably about 0.5 to 70 m. And it is sufficient. The thickness of the coating layer can be easily adjusted depending on the polymer concentration in the coating composition and the number of coatings.
- polymer materials conventionally used are usually used as the materials for the medical devices described above.o
- the polyurethanes of the present invention When used as a material for a medical device, the polyurethanes of the present invention may be used alone, or the physical properties required may be reduced. Accordingly, it may be used in combination with a polymer material used as a material for a medical device requiring the above-mentioned blood compatibility.
- the proportion of the polyurethanes of the present invention is usually 100% of the total amount of the polyurethanes of the present invention and another polymer. When the amount is expressed by weight%, it may be about 1 to 60% by weight, and preferably about 5 to 50% by weight.
- polyesters of the present invention In order to obtain a medical device using the polyesters of the present invention as a raw material, it may be manufactured by a conventionally known method according to each purpose.
- the polyurethanes of the present invention have good biocompatibility and can stably exhibit excellent antithrombotic performance from the initial stage of contact with biological components to after long-term contact.
- the polyurethanes of the present invention are used as a material for medical devices such as medical devices and devices that require blood compatibility, or as a coating agent for these medical devices. Depending on In addition, it is possible to obtain medical devices such as medical devices and devices that have blood compatibility and can stably exhibit excellent antithrombotic performance.
- n represents Ru average 4 der
- EOOP EOOP
- R 1 is octyl. 2 — [3, 7 — diaza-1, 3, 3 — dimethinolate 7 — (2 — hydroxypropyl) — 9-hydroxy Shideshinore] - 2 '- O click Chiruhosu off E over preparative (hereinafter, abbreviated as SC 8) was prepared in the following manner.
- the obtained 0 OP and ADO were dissolved in equimolar amounts in dry acetonitrile, and reacted at 65 ° C. for 24 hours in a closed reactor. After the reaction, the solvent was distilled off under reduced pressure, the residue Tsu by the and this washing several times with hexa down the to shea click b, to give a yellow-Ironeba LIQUID body der Ru SC 8 9 3% yield .
- IR spectacle (neat): 330 (R.H), 29 0 0 ( ⁇ CH), 1 2 2 0 (P O), 1 0 4 0 ( -PO -c) cm -1 .
- N dimethinorea minomethinoline 2 — methyl-1 1, 3 — prono.
- Simetinolehexyl) _2'-octyl phosphite was obtained in a yield of 89%.
- BD butanediol
- DMAC 70 ml a solution prepared by dissolving 18.36 g of 4,4, -methylbenzene (six mouth hexyl cyanate) (hereinafter abbreviated as HMDI) in 30 ml of DMAc was added to an algorithm. After sufficient replacement of the inside of the reactor with gas, the solution was slowly dropped. After the dropwise addition, the mixture was stirred at 100 ° C for 24 hours to perform polymerization.
- HMDI six mouth hexyl cyanate
- the reaction mixture was poured into 1500 ml of water while stirring, and the formed precipitate was separated by filtration and dissolved in tetrahydrofuran (hereinafter abbreviated as THF).
- THF tetrahydrofuran
- the mixture was poured into a 50 vol% aqueous methanol solution with stirring, and the resulting precipitate was collected and dried under reduced pressure to obtain a polymer A.
- the weight average molecular weight of the obtained polymer A was 123,000.
- This copolymer A was dissolved in THF to make a 5% solution. Place 20 g of this solution evenly on a horizontal 12 cm x 12 cm glass plate, dry under nitrogen at 40 ° C for 8 hours, and reduce the pressure at 40 ° C. Drying was carried out for 15 hours to obtain a finolem A1 having a thickness of about 60.
- the relative clotting time of the plasma in this film was measured by the following method.
- 200 ⁇ l of citrated plasma of persian Japanese white
- 200 ⁇ l of 0.025 mol Zl of calcium chloride aqueous solution was added.
- the watch glass was being floated in a thermostat at 37 ° C., the mixture was gently shaken so as to mix the liquid.
- the time elapsed from the time when the aqueous chloride solution was added to the time when the plasma coagulated (when the plasma stopped moving) was measured, and the same operation was performed on the glass to perform plasma coagulation. It was divided by the time required and expressed as the relative coagulation time.
- the polymer A solution was diluted with THF to 1%, and 40 to 60 mesh glass beads were immersed in this solution for 30 minutes, then filtered through a glass filter, and nitrogen was added. Dry under reduced pressure at 40 ° C for 8 hours and at 40 ° C for 15 hours to coat polymer A on the glass beads and coat the coating beads A1. Obtained. Immerse 100 mg of this coating bead A in 1 ml of a 2-fold dilution of human serum in PBS, and incubate at 37 ° C for 30 minutes with gentle shaking. did. This solution was used as a sample and the Mayer method (Mayer, M.M.
- the finolem A1 was immersed in a PBS buffer and eluted in a shaking thermostat at 37 ° C for 2 weeks to obtain a film A2.
- the PBS buffer was changed daily.
- the relative clotting time of plasma in film A2 was evaluated in the same manner as in film A1. The results are shown in Table 1.
- the anti-thrombotic activity was evaluated by invivo using this holographic A1.
- the experimental method is as follows.
- the femoral vein of a heron (Japanese white, 2.5-3.0 kg) was peeled off, and the distal side was ligated with a thread, and a 2-3 cm from the thread was removed. These were clamped with vascular forceps.
- the central side of the ligated part was cut with a scissor under the eye at a diameter of 1Z4 to l3, and a hollow fiber sample was inserted 10 cm toward the central side. Hollower that is out of the blood vessel about 1 cm from the insertion position W CT / JP98
- the end of the fiber was sewn to prevent the hollow fiber from being washed away.
- the incision was sutured, antibiotics were given, and the animals were kept for one month before removing samples.
- the blood vessel where the was inserted was cut.
- the blood vessel was incised, the hollow fiber and the inside of the blood vessel were photographed, visually observed, and evaluated on a 5-point scale. The results are shown in Table 1.
- Fibrin formation or platelet aggregation is observed, and thrombus formation is slightly observed.
- Fibrin formation or platelet aggregation is observed, and massive thrombus formation is observed.
- Example 2 7.01 g of SEO, 3.52 g of PTMG, and 4.llg of BD were dissolved in 70 ml of DMAc. A solution prepared by dissolving 8.36 g of HMDI in 30 ml of DMAc was added dropwise to this solution under the same conditions as in Example 1. Other experimental procedures were performed in the same manner as in Example 1 to obtain a polymer B. The weight average molecular weight of the obtained polymer B was 104.000.
- film B1, coating beads B1 and holofiber B1 were obtained from polymer B.
- Film C 1 was obtained from polymer C in the same manner as in Example 1. With respect to this sample, the plasma relative coagulation time was measured in the same manner as in Example 1.
- each of finolem C1, coating bead C1 and hollow fiber C1 obtained from polymer C in the same manner as in Example 1 was reduced to 1%.
- Immersion in 200 ml of a buffer solution of linatrium in PBS at 25 ° C for 24 hours was performed, and the finolem C2, the coating beads C2, and the hollow fin Kuichi C 2 was obtained.
- the plasma relative clotting time, complement titer, and inViVo antithrombotic properties were measured in the same manner as in Example 1.
- the PBS buffers of the finolems Cl and C2 were eluted, and the plasma relative coagulation times of the eluted finolems C3 and C4 obtained from each were measured.
- Film D 1 was obtained from polymer D in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- each of finolem D1, coating beads D1 and hollow fin-D1 obtained from polymer D in the same manner as in Example 1 was dispersed to 1%. Immersion in 200 ml of PBS buffer solution at 25 ° C for 24 hours, then film D 2, coating beads D 2, and hollow fin D 2 was obtained. With respect to these samples, the plasma relative clotting time, complement titer, and inViVo antithrombotic activity were measured in the same manner as in Example 1.
- the PBS buffers of the finolems Dl and D2 were eluted, and the plasma relative clotting times of the eluted films D3 and D4 obtained from each were measured.
- Film E 1 was obtained from polymer E in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- the film E1, the coating bead E1, and the hollow fiber E1 obtained from the polymer E in the same manner as in Example 1 were each parylated to 1%.
- Immersion in 200 ml PBS buffer solution at 25 ° C for 24 hours, film E 2, coating beads E 2, and hollow fiber E 2 I got With respect to these samples, the plasma relative clotting time, complement titer, and inViVo antithrombotic activity were measured in the same manner as in Example 1.
- Example 2 In the same manner as in Example 1, a film F1, a coating bead F1 and a holofiber F1 were obtained from the polymer F.
- Example 1 SE0 3.95 g, ADO—C10.94 g, PTMG1 8.20 g and BD 4.10 g were dissolved in DMA c70 ml.
- Film G 1 was obtained from polymer G in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- each of the film G1, the coating beads G1 and the hollow fins G1 obtained from the polymer G in the same manner as in Example 1 was reduced to 1%.
- 0 Li runner Application Benefits U to arm PBS buffer solution 2 0 0 m 1 was immersed for 24 hours at 2 5 ° C, off i Noremu G 2, co Ichite fin Gubizu G 2 and e b-safe ⁇ i You got G2.
- the plasma relative clotting time, complement titer, and in ViV0 antithrombotic property were measured in the same manner as in Example 1.
- Example 2 In the same manner as in Example 1, a film HI, a coating bead H1 and a hollow fin H1 were obtained from the polymer H.
- Example 1 In the same manner as in Example 1, a film I1, a coating bead I1 and a holophinochloride I1 were obtained from the polymer I. In addition, the plasma relative clotting time, complement titer, and in ViVo antithrombotic properties of these samples were measured in the same manner as in Example 1. The results are shown in Table 1 below.
- Example 2 A solution in which 36 g was dissolved in DMAc30m1 was added dropwise under the same conditions as in Example 1. Other experimental procedures were performed in the same manner as in Example 1 to obtain a polymer J.
- the weight average molecular weight of the obtained polymer J was 88,000.
- Film J 1 was obtained from polymer J in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- the film J1, the coating beads J1 and the hollow fin J1 obtained from the polymer J in the same manner as in Example 1 were each reduced to 1%.
- the plasma relative coagulation time, complement titer, and in ViVo antithrombotic activity were measured in the same manner as in Example 1.
- Example 2 In the same manner as in Example 1, a film K1, a coating bead K1 and a holofiber K1 were obtained from the polymer K.
- Example 2 A solution in which 36 g was dissolved in DMAc30m1 was added dropwise under the same conditions as in Example 1. Other experimental procedures were performed in the same manner as in Example 1 to obtain a polymer L. The weight average molecular weight of the obtained polymer L was 165,000.
- Film L 1 was obtained from polymer L in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- the film L1, the coating bead L1 and the hollow fiber L1 obtained from the polymer L in the same manner as in Example 1 were each reduced to 1%.
- Film N 1 was obtained from polymer N in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- Example 1 1% of each of the film N1, the coating beads N1 and the hollow particles N1 obtained from the polymer N in the same manner as in Example 1 was used. Heno ,. Immersion in 200 ml of linatrium PBS buffer solution at 25 ° C for 24 hours, with finolem N 2, coating beads N 2 and hollow fiber N I got 2. The same samples as in Example 1 were used for these samples. The plasma relative clotting time, complement titer, and in ViV0 antithrombotic activity were measured by the method.
- Example 2 In the same manner as in Example 1, a film O1, a coating bead 01 and a hollow fin 101 were obtained from the polymer 0.
- Film P 1 was obtained from polymer P in the same manner as in Example 1.
- the plasma relative coagulation time was measured in the same manner as in Example 1.
- the film P1, the coating bead P1 and the hollow fiber P1 obtained from the polymer P in the same manner as in Example 1 were each reduced to 1%.
- the plasma relative clotting time, complement titer, and inViV0 antithrombotic properties were measured in the same manner as in Example 1.
- the film Q1 was eluted with a PBS buffer, and the relative coagulation time of plasma of the obtained eluted film Q2 was measured.
- the results are shown in Table 1 below.
- the film formed from the polyurethanes of the present invention exhibited excellent antithrombotic properties and remained in the blood vessel for one month. The performance is maintained even after detention.
- Examples 1 and 2 differ in the content of the soft segment, PTMG, but it is apparent that these contents do not affect the antithrombotic ability.
- the polyurethanes of the present invention after having been eluted for 2 weeks in a PBS buffer solution and having been placed in a rabbit ego femoral vein, by containing a phosphorolinolecholine structure in the side chain 1 It is evident that stable antithrombotic properties can be exerted even after months, especially when a polyoxyalkylene group, which is a hydrophilic group, is introduced into the side chain terminal. It can be seen that particularly excellent antithrombotic properties can be exhibited by the effect of the hydrophilicity.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Hematology (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Polyurethanes Or Polyureas (AREA)
- Materials For Medical Uses (AREA)
- Paints Or Removers (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54373498A JP4042162B2 (ja) | 1997-04-17 | 1998-04-13 | 生体適合性ポリマー |
EP98912796A EP0913416B1 (en) | 1997-04-17 | 1998-04-13 | Biocompatible polymers |
DE69831912T DE69831912T2 (de) | 1997-04-17 | 1998-04-13 | Biokompatible polymere |
US09/147,392 US6040415A (en) | 1997-04-17 | 1998-04-13 | Biocompatible polymers |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/100446 | 1997-04-17 | ||
JP10044697 | 1997-04-17 | ||
JP17454997 | 1997-06-30 | ||
JP9/174549 | 1997-06-30 | ||
JP34535197 | 1997-12-15 | ||
JP9/345351 | 1997-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998046659A1 true WO1998046659A1 (fr) | 1998-10-22 |
Family
ID=27309222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/001702 WO1998046659A1 (fr) | 1997-04-17 | 1998-04-13 | Polymeres biocompatibles |
Country Status (5)
Country | Link |
---|---|
US (1) | US6040415A (ja) |
EP (1) | EP0913416B1 (ja) |
JP (1) | JP4042162B2 (ja) |
DE (1) | DE69831912T2 (ja) |
WO (1) | WO1998046659A1 (ja) |
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JP2000279512A (ja) * | 1999-03-30 | 2000-10-10 | Nof Corp | 医療用材料および製造方法 |
JP2001000535A (ja) * | 1999-06-21 | 2001-01-09 | Toyobo Co Ltd | 抗菌性抗血栓性材料のコーティング方法 |
JP2004500458A (ja) * | 2000-02-07 | 2004-01-08 | バイオコンパティブルズ ユーケー リミテッド | モノマー及びマクロマーとして有用なマイケル型反応からの化合物を含む両性イオン基 |
JP2005537854A (ja) * | 2002-09-06 | 2005-12-15 | アボット・ラボラトリーズ | 水和抑制剤を具備する医療器具 |
JP2006213861A (ja) * | 2005-02-04 | 2006-08-17 | Kazuhiko Ishihara | 液体接触面用コーティング剤及び液体接触面用コーティング剤を備えた物体 |
WO2013115331A1 (ja) * | 2012-01-31 | 2013-08-08 | テルモ株式会社 | プレフィルドシリンジ用シリンジ |
US8900205B2 (en) | 2012-01-31 | 2014-12-02 | Terumo Kabushiki Kaisha | Syringe for prefilled syringe |
WO2021145330A1 (ja) | 2020-01-17 | 2021-07-22 | 第一工業製薬株式会社 | ポリウレタン又はポリウレタンウレア、抗血栓性コーティング剤、抗血栓性医療用具、及び製造方法 |
CN114213615A (zh) * | 2021-12-29 | 2022-03-22 | 广东粤港澳大湾区黄埔材料研究院 | 一种耐溶胀的磷酰胆碱改性聚氨酯材料及其制备方法 |
KR20240078036A (ko) | 2022-11-25 | 2024-06-03 | 한국생산기술연구원 | 키토산 유도체 및 그 제조방법 |
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US7445792B2 (en) * | 2003-03-10 | 2008-11-04 | Abbott Laboratories | Medical device having a hydration inhibitor |
US20030129215A1 (en) * | 1998-09-24 | 2003-07-10 | T-Ram, Inc. | Medical devices containing rapamycin analogs |
ITPD980037A1 (it) * | 1998-02-25 | 1999-08-25 | Fidia Advanced Biopolymers Srl | Acido ialuronico solfatato e i suoi derivati legati covalentemente a polimeri sintetici pe la preparazione di biomateriali e per il rivesti |
JP3847053B2 (ja) * | 2000-03-15 | 2006-11-15 | 純 菊地 | 血液分析装置 |
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WO2019070507A1 (en) | 2017-10-05 | 2019-04-11 | Fresenius Medical Care Holdings, Inc. | POLYSULFONE-URETHANE COPOLYMER, MEMBRANES AND INCORPORATING PRODUCTS, AND METHODS OF MAKING AND USING THE SAME |
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- 1998-04-13 JP JP54373498A patent/JP4042162B2/ja not_active Expired - Lifetime
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JP2000279512A (ja) * | 1999-03-30 | 2000-10-10 | Nof Corp | 医療用材料および製造方法 |
JP4712924B2 (ja) * | 1999-03-30 | 2011-06-29 | 日油株式会社 | 医療用材料および製造方法 |
JP2001000535A (ja) * | 1999-06-21 | 2001-01-09 | Toyobo Co Ltd | 抗菌性抗血栓性材料のコーティング方法 |
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Also Published As
Publication number | Publication date |
---|---|
EP0913416A1 (en) | 1999-05-06 |
DE69831912T2 (de) | 2006-07-13 |
DE69831912D1 (de) | 2006-03-02 |
JP4042162B2 (ja) | 2008-02-06 |
EP0913416B1 (en) | 2005-10-19 |
EP0913416A4 (en) | 2001-01-10 |
US6040415A (en) | 2000-03-21 |
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