WO2005115534A1 - イオントフォレーシス装置 - Google Patents
イオントフォレーシス装置 Download PDFInfo
- Publication number
- WO2005115534A1 WO2005115534A1 PCT/JP2005/010009 JP2005010009W WO2005115534A1 WO 2005115534 A1 WO2005115534 A1 WO 2005115534A1 JP 2005010009 W JP2005010009 W JP 2005010009W WO 2005115534 A1 WO2005115534 A1 WO 2005115534A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ion exchange
- meth
- ion
- group
- exchange membrane
- Prior art date
Links
- 239000003014 ion exchange membrane Substances 0.000 claims abstract description 101
- 239000003814 drug Substances 0.000 claims abstract description 85
- 238000005342 ion exchange Methods 0.000 claims abstract description 40
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 29
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 29
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 19
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 18
- 238000001962 electrophoresis Methods 0.000 claims abstract description 7
- 229940079593 drug Drugs 0.000 claims description 81
- 239000000178 monomer Substances 0.000 claims description 39
- 239000012528 membrane Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 21
- 125000000962 organic group Chemical group 0.000 claims description 20
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- 239000003505 polymerization initiator Substances 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 44
- -1 folic acid Chemical compound 0.000 description 38
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 35
- 239000000243 solution Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 24
- 210000004379 membrane Anatomy 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 15
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- 239000003011 anion exchange membrane Substances 0.000 description 9
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- 239000002904 solvent Substances 0.000 description 8
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- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 238000005341 cation exchange Methods 0.000 description 6
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- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
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- 239000003792 electrolyte Substances 0.000 description 5
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
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- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
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- 239000004743 Polypropylene Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
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- 230000000379 polymerizing effect Effects 0.000 description 3
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- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 2
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- HLGNMOUJXWELKK-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOCCOCCOCCOCCOCCOCCOC(=O)C(C)=C HLGNMOUJXWELKK-UHFFFAOYSA-N 0.000 description 2
- 125000001340 2-chloroethyl group Chemical group [H]C([H])(Cl)C([H])([H])* 0.000 description 2
- IWTYTFSSTWXZFU-UHFFFAOYSA-N 3-chloroprop-1-enylbenzene Chemical compound ClCC=CC1=CC=CC=C1 IWTYTFSSTWXZFU-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 102100040999 Catechol O-methyltransferase Human genes 0.000 description 2
- 108020002739 Catechol O-methyltransferase Proteins 0.000 description 2
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- 125000000217 alkyl group Chemical group 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- FUSUHKVFWTUUBE-UHFFFAOYSA-N buten-2-one Chemical compound CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 2
- 229960003957 dexamethasone Drugs 0.000 description 2
- UREBDLICKHMUKA-CXSFZGCWSA-N dexamethasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O UREBDLICKHMUKA-CXSFZGCWSA-N 0.000 description 2
- PLCQGRYPOISRTQ-FCJDYXGNSA-L dexamethasone sodium phosphate Chemical class [Na+].[Na+].C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)COP([O-])([O-])=O)(O)[C@@]1(C)C[C@@H]2O PLCQGRYPOISRTQ-FCJDYXGNSA-L 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
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- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 2
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- 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 2
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- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
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- JLFNLZLINWHATN-UHFFFAOYSA-N pentaethylene glycol Chemical compound OCCOCCOCCOCCOCCO JLFNLZLINWHATN-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- OGQDIIKRQRZXJH-UHFFFAOYSA-N protriptyline hydrochloride Chemical group [Cl-].C1=CC2=CC=CC=C2C(CCC[NH2+]C)C2=CC=CC=C21 OGQDIIKRQRZXJH-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
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- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
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- 239000001540 sodium lactate Substances 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- KGKNBDYZZIBZQL-UHFFFAOYSA-N tert-butyl carboxyoxy carbonate Chemical compound CC(C)(C)OC(=O)OOC(O)=O KGKNBDYZZIBZQL-UHFFFAOYSA-N 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- ILLKMACMBHTSHP-UHFFFAOYSA-N tetradecaethylene glycol Chemical compound OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO ILLKMACMBHTSHP-UHFFFAOYSA-N 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000001069 triethyl citrate Substances 0.000 description 1
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 description 1
- 235000013769 triethyl citrate Nutrition 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 235000019163 vitamin B12 Nutrition 0.000 description 1
- 239000011715 vitamin B12 Substances 0.000 description 1
- 235000019164 vitamin B2 Nutrition 0.000 description 1
- 239000011716 vitamin B2 Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/12—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/0404—Electrodes for external use
- A61N1/0408—Use-related aspects
- A61N1/0428—Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
- A61N1/0444—Membrane
Definitions
- the present invention relates to an iontophoresis device for performing iontophoresis in which an ionic agent useful for a living body is penetrated into the living body by using electrophoresis.
- the present invention relates to an iontophoresis device used and an ion exchange membrane used in the device.
- Iontophoresis in which an ionic drug useful for a living body penetrates into a living body using electrophoresis, is widely known as a method for administering a desired amount of a drug to a desired affected part in a painless state.
- a drug layer impregnated with an ionic drug is placed on a living body, a working electrode is arranged on the opposite side of the living body with the drug layer interposed, and a counter electrode is placed on the living body away from the drug layer.
- the current is passed between the working electrode and the counter electrode by the power supply, so that the medicinal ions of the ionic drug penetrate the living body.
- the purpose of this method is to allow only ionic drugs to penetrate into the living body through biological interfaces such as skin and mucous membranes.
- the ionic drug does not always pass through the biological interface, and conversely, when sodium cation, potassium cation, chloride anion, etc.
- ionic drugs that are useful for living organisms have lower mobilities than the ions present in living organisms as described above. Low efficiency).
- the drug can come into direct contact with the electrode, it is not only consumed by reacting at the electrode, but also there is a possibility that a compound that adversely affects the living body may be generated.
- the drug since the drug is usually impregnated as a water solution, the electrolysis of water proceeds at the working electrode and the counter electrode, and the H + ions and OH- ions generated thereby change the pH of the drug aqueous solution, causing the drug to be absorbed into the living body. It could cause inflammation.
- Patent Documents 1 to 14 a new method of iontophoresis in which an ion-exchange membrane is placed on a biological interface and medicinal ions penetrate into a living body through the ion-exchange membrane has been proposed (for example, Patent Documents 1 to 14). See).
- Patent Document 1 Japanese Patent Application Laid-Open No. 3-974771
- Patent Literature 2 Japanese Patent Publication No. Hei 3-5-4003
- Patent Document 3 Japanese Patent Application Laid-Open No. Hei 4-29 7 27 7
- Patent Literature 4 Japanese Patent Application Laid-Open No. 2000-229291 The method proposed in the above Patent Literature discloses that only ions having the same sign as a target drug ion are formed on a biological interface. An permeable ion exchange membrane is provided. For this reason, ions having the opposite sign to the medicinal ions of the target drug can be prevented from exuding from the living body, and a higher dose of the drug can be obtained than when no ion exchange membrane is provided. In these technologies, commercially available woven fabrics used for salt production and dialysis of food compounds are used as reinforcing materials.
- the ion-exchange membrane used for the (base material) is used.
- Such an ion-exchange membrane is made of a styrene-divinylbenzene copolymer as a base resin as an ion-exchange resin, and as the base resin.
- Those having ion exchange groups such as sulfonic acid groups and ammonium bases (hereinafter referred to as styrene ion exchange membranes) are used.
- an object of the present invention is to provide a device for iontophoresis capable of efficiently administering not only an ionic drug having a small formula amount but also an ionic drug having a large formula amount of medicinal ions to a living body efficiently.
- Another object of the present invention is to provide an ion-exchange membrane used for the above-described iontophoresis device and a method for producing the same.
- the present inventors have conducted various studies in order to solve the above problems. As a result, when using an ion-exchange membrane having a cross-linked (meth) acrylic acid resin having an ion-exchangeable group as an ion-exchange resin, the efficacy of ionic drugs having a large ionic formula can be efficiently reduced.
- the present invention was completed.
- a working electrode a working electrode structure including a drug-containing portion and an ion exchange membrane
- a counter electrode structure including the working electrode and a counter electrode
- (C) a power supply unit electrically connected to the working electrode structure and the counter electrode structure, and the ionic drug contained in the drug-containing portion penetrates into a living body by electrophoresis through an ion exchange membrane.
- the ion-exchange membrane is characterized in that it has a cross-linked (meth) acrylic resin having a (meth) acrylic structural unit A to which an ion-exchange group is bonded as an ion-exchange resin.
- An iontophoresis device is provided.
- an ion having a crosslinked (meth) acrylic resin having a (meth) acrylic structural unit A to which an ion exchange group is bonded as an ion exchange resin An ion exchange membrane for autophoresis is provided.
- a polymerizable solution containing a polymerizable monomer composition containing a (meth) acrylic acid derivative having an ion-exchange group, a cross-linking agent, and a polymerization initiator A method for producing an ion exchange membrane for iontophoresis, wherein the method comprises allowing the polymerizable solution to permeate the voids of the porous membrane by contact with the material, followed by polymerization.
- FIG. 2 is a schematic view of an apparatus used for measuring a drug dose in the example.
- Fig. 3 is a schematic cross-sectional view of a portable iontophoresis device in which all components are incorporated into one exterior material.
- BEST MODE FOR CARRYING OUT THE INVENTION> The iontophoresis device of the present invention uses an electrophoresis to administer an ionic drug to a living body through an ion exchange membrane, as shown in FIG.
- the structure includes a working pole structure 1, a counter electrode structure 2, and a power supply unit 3 electrically connected to these structures.
- the working electrode structure 1 includes an electrode (working electrode) 4 serving as a working electrode, a drug containing portion 5 containing an ionic drug, and an ion exchange membrane 6.
- This ion exchange membrane 6 selectively allows ions of the same polarity as the medicinal ions of the ionic drug to be administered to permeate.
- the working electrode 4 the drug-containing portion 5, and the ion exchange membrane 6 are arranged in this order.
- these members are laminated in one exterior material (not shown) to form the working electrode structure 1, and the ion exchange membrane 6 is located on the biological interface (skin) 7 It is used by being arranged in the direction.
- an ion exchange membrane 8 may be further included between the electrode and the drug-containing layer in order to prevent the decomposition of the drug to be administered and to prevent the pH of the drug-containing portion 5 from changing due to the electrode reaction. It is preferable that the ion exchange membrane 8 selectively permeate ions of the opposite polarity to the medicinal ions.
- an ion-conductive gel is placed between the ion exchange membrane 6 and the biological interface 7.
- a sheet formed of a material such as a porous film or a woven cloth through which ions can pass may be provided.
- These gels and sheets can have a structure integrated with the working electrode structure 1, and can be sandwiched between the living body interface 7 and the gel or sheet only when used.
- an ionic conductive gel, an ionic electrolyte solution, and further an ionic electrolyte solution were impregnated between the working electrode 4 and the ion exchange membrane 8.
- a porous film or woven fabric can be arranged.
- an electrode used in a normal electrochemical process can be used without any limitation.
- Examples include electrodes made of electronic conductors such as gold, platinum, silver, copper, nickel, zinc, and carbon; semiconductor electrodes; and self-sacrifice electrodes such as silver and silver chloride. These may be used alone or in combination. can do.
- gold, platinum, silver, carbon and the like are mentioned.
- these electrodes those formed into a paper-like material obtained by laminating plates, sheets, meshes, and fibers in an irregular shape can be used as they are. It can be used by being provided by vapor deposition.
- a drug-containing layer used in normal iontophoresis can be used without any limitation. That is, a solution itself in which an ionic drug is dissolved in a solvent such as water or ethanol, a gel obtained by mixing the solution with polyvinyl alcohol, polyvinylpyrrolidone, or the like, or impregnation of a porous film, gauze, or the like with the solution. Those that have been used can be used.
- the ionic drug used in the drug-containing portion 5 is not particularly limited, and is composed of a positive ion and a negative ion. When the positive ion or the negative ion enters the living body, The substance is not particularly limited as long as it has a pharmacological effect.
- ionic drugs examples include anionic drugs such as proforce hydrochloride, lidocaine hydrochloride, and dibuforce hydrochloride, and antineoplastic drugs such as mitomycin, bleomycin hydrochloride, and the like.
- Analgesics such as morphine hydrochloride, steroids such as medroxyprogesterone acetate, histamine, and insulin.
- ionic drugs exerted by negative ions such as Vitamin B2, Vitamin B12, Vitamin C, Vitamin E, vitamins such as folic acid, anti-inflammatory drugs such as aspirin and ibuprofen, corticosteroids such as dexamethasone-based water-soluble preparations, and antibiotics such as benzylpenicillin potassium Are mentioned.
- the iontophoresis device of the present invention is characterized in that, when an ionic drug having a formula weight of medicinal ions in the range of 300 to 150, particularly 400 to 100, is used.
- administration can be performed with higher efficiency than conventional devices.
- the ion exchange membrane 6 has a structure in which, for example, a porous base material is filled with an ion exchange resin in voids.
- the ion exchange resin in the ion exchange membrane 6 is an ion exchange resin. It is extremely important to use a resin having a crosslinked (meth) acrylic resin having a (meth) acrylic structural unit A to which a functional group is bonded.
- the membrane 6 By using the membrane 6, even a medicinal ion having a large ionic amount as described above can be efficiently administered to a living body.
- an ion-exchange membrane having a styrene-based ion-exchange resin is used, it is not possible to efficiently administer a large amount of medicinal ions.
- the (meth) acrylic structural unit A (ion-exchangeable structural unit) as described above, the (meth) acrylic resin that does not have a crosslinked structure dissolves the ionic drug. It dissolves in a solvent such as water used to make it impossible to function as an ion-exchange membrane in an iontophoresis device, and is made of a non-crosslinkable resin for unknown reasons. In the case of the ion exchange membrane, the permeability of the drug decreases.
- an ion exchange membrane 6 having a crosslinked (meth) acrylic resin having a (meth) acrylic structural unit A having an ion exchange group bonded thereto as an ion exchange resin.
- the ion-exchangeable crosslinked (meth) acrylic resin has a flexible structure such as an ester structure or an amide structure between the polymer chain and the ion-exchange group, the ion-exchange group is It can move relatively freely within the ion exchange membrane (resin), so that large ionic quantities of medicinal ions pass through In doing so, it is considered that the ion-exchange group moves flexibly and does not hinder the movement of medicinal ions. That is, in an ion exchange membrane having a styrene-based ion exchange resin, the rigidity is higher than that of a (meth) acrylic resin, so that the degree of freedom of the ion exchange group is low. Permeation of medicinal ions having a large formula weight becomes difficult, and in the case of non-crosslinked (meth) acrylic resin, the film dissolves in the solvent or the permeability of the drug decreases.
- a crosslinked (meth) acrylic ion exchange resin used in the present invention has a crosslinked structure, it has a high strength. It also has the advantage of being excellent and easy to form into a film.
- a crosslinked (meth) acrylic ion-exchange resin has a (meth) acrylic structural unit A (ion-exchangeable structural unit) in which an ion-exchange group is bonded in a (meth) acrylic polymer chain.
- the ion-exchangeable structural unit A typically has the following formula (1):
- R 1 is a hydrogen atom or a methyl group
- X 1 is one O— or> NR ′ (where R ′ represents a hydrogen atom or a monovalent organic group having no ion-exchange group),
- Y 1 is a bond or a divalent organic group
- Z is an ion exchange group
- R ′ in> NR ′ is a hydrogen atom or a monovalent organic group, and the monovalent organic group may have no ion-exchange group. Is not particularly limited as long as it is in the range of preferably 120 carbon atoms, more preferably 110 carbon atoms, for example, methyl group, ethyl group, propyl group, butyl group, An alkyl group such as a hexyl group; a hydroxyl-substituted alkyl group such as a 2-hydroxyethyl group; a halogen atom-substituted alkyl group such as a 2-chloroethyl group;
- the divalent organic group is not particularly limited, but preferably has 130 carbon atoms, more preferably has 2 to 20 carbon atoms,
- an alkylene group such as a methylene group, an ethylene group, a propylene group, a trimethylene group, a 2-methylpropylene group, a hexamethylene group, a decamethylene group; a hydroxyl-substituted alkylene group such as a 2- or 3-hydroxytrimethylene group;
- a halogen atom-substituted alkylene group such as a terminal trimethylene group;
- the ion exchange group (group) in the above formula (1) is not particularly limited as long as it is a functional group that can be negatively or positively charged in an aqueous solution.
- Specific examples of such an ion exchange group include:
- a base or an ionic base include an anion-exchangeable group such as a tertiary amino group, a quaternary ammonium group, a pyridyl group, an imidazole group, a quaternary pyridinium group, and a quaternary imidazolym group.
- crosslinked (meth) acrylic ion exchange resin used in the present invention is (meth)
- other structural units include the following formula (2):
- R 2 represents a hydrogen atom or a methyl group
- X 2 is one O— or> NR ′ (where R ′ is the same as described above);
- R 4 is a monovalent organic group having no ion-exchange group
- the group R 4 is not particularly limited as long as it is a monovalent organic group having no ion-exchange group, but is generally an organic group having 1 to 30 carbon atoms, particularly 1 to 20 carbon atoms. It is preferable that Specific examples of such an organic group include a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, a 2-ethylhexyl group, an isodecyl group, an n-lauryl group, a cyclohexyl group and an isopolnyl group.
- a hydroxyl-substituted alkyl group such as a 2-hydroxylethyl group, a 2- or 3-hydroxypropyl group, or a 2-hydroxybutyl group; a halogen-substituted alkyl group such as a 2-chloroethyl group &;
- a chain ether group whose terminal is blocked with an alkyl group (where n is 1 to 9, m is an integer of 1 to 6): The following formula:
- a group having a cyclic ether structure such as a tetrahydrofurfuryl group and a glycidyl group; and the like.
- crosslinked (meth) acrylic ion-exchange resin used in the present invention has a crosslinked structural unit in relation to having a crosslinked structure.
- a crosslinked structural unit for example, the following formula (3) );
- R 3 represents a hydrogen atom or a methyl group
- X 3 is O or NR ′ (where R ′ is the same as described above);
- Y 2 is a divalent organic group which is a crosslinked chain
- R ′ in> NR ′ is a hydrogen atom or a monovalent organic group having no ion-exchange group, as in the above formula (1).
- the organic group include the same as those exemplified in the formula (1).
- the divalent organic group Y 2 which is a crosslinked chain is the same as the group exemplified as the group Y 1 in the formula (1).
- each structural unit may be arranged in an arbitrary order, and each structural unit may be a single unit. It may have a structure, or as each structural unit, It may have a plurality of types of structural units.
- the structural unit A ion-exchangeable structural unit
- structural unit B in a ratio of 0 to 0.9495, particularly 0 to 0.80, most preferably 0 to 0.60
- structural unit C crosslinked structure. Unit
- the crosslinked (meth) acrylic ion exchange resin used in the present invention may be, if necessary, a structural unit other than a (meth) acrylic resin (a structural unit based on a polymerizable monomer other than a (meth) acrylic resin).
- a vinyl-based structural unit other than the (meth) acrylic-based structural unit may be contained, but the ratio of such another structural unit is determined by adding the total of the structural units A, B, and C to 1 , 1 or less, more preferably 0.5 or less, and still more preferably 0.1 or less.
- the crosslinked (meth) acrylic ion-exchange resin having the above-mentioned various structural units is not particularly limited, but is generally a (meth) acrylic acid derivative-based resin corresponding to the above structural units A, B and C. It can be obtained by polymerizing a monomer mixture containing the polymerizable monomer in an amount satisfying the above-mentioned amount ratio.
- 2-sulfonic acid monomers such as 2- (meth) acrylamide-1-methylpropanesulfonic acid, 3-sulfopropane (meth) acrylate, 10-sulfodecane (meth) acrylate, and salts corresponding thereto;
- Pentaethylene glycol mono (meth) acrylate and the like.
- the polymerizable monomer corresponding to the structural unit C can be copolymerized with the group Y 3 (crosslinked chain) in the structural unit in the formula (3) and further with a (meth) acrylic group.
- Trimethylolpropane tri (meth) acrylate Methylenebis (meth) acrylamide
- the (meth) acrylic acid derivative-based polymerizable monomers corresponding to the structural units A, B, and C described above may be used alone or in combination of two or more. These are used in such an amount that the ratio of the amounts of the structural units A to C falls within the above-mentioned range. Further, if necessary, other polymerizable monomers (for example, N-vinylpyrrolidone, vinyl acetate, methyl vinyl ketone, etc.) corresponding to vinyl structural units other than (meth) acrylic type may be used in combination. It can also be polymerized.
- the method of polymerizing the polymerizable monomer as described above is not particularly limited. However, in general, a method in which a thermal polymerization initiator is blended in a solution of the polymerizable monomer mixture and heating is preferred.
- the thermal polymerization initiator include benzoyl peroxide, t-butylperoxy-12-ethylhexanoate, t-butylperoxydicarbonate, diisopropylpropylperoxydicarbonate, dilauroyl peroxyside, and t-butyl.
- the amount of the polymerization initiator is preferably from 0.1 to 20 parts by mass, particularly preferably from about 0.5 to 10 parts by mass, based on 100 parts by mass of the above-mentioned polymerizable monomer in total.
- a solvent such as water or alcohol can be added to the solution of the above monomer mixture, and dibutyl phthalate, octyl phthalate, dimethyl isophthalate, etc.
- Plasticizers such as phthalate, dibutyl adipate, triethyl citrate, acetyl triptyl citrate, dibutyl sebacate, and dibenzyl ether can also be blended.
- the polymerizable monomer mixture and the thermal polymerization start A polymerizable solution containing an agent or the like may be brought into contact with a porous substrate functioning as a reinforcing material / supporting material, and polymerization may be performed in a state where the polymerizable solution has penetrated into voids of the porous substrate.
- the porous substrate is not particularly limited, but generally, paper, woven fabric, non-woven fabric, porous stretched film and the like are used.
- a thin ion-exchange membrane 6 having a high mechanical strength that is, it is possible to efficiently administer a drug and effectively prevent breakage
- the porous stretched film is used as the porous substrate, and most preferably, the porous stretched film is used as the porous substrate.
- the porous stretched film has a large number of pores communicating between the front and back, and is preferably made of a thermoplastic resin in order to achieve both high strength and flexibility.
- thermoplastic resins include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 3-methyl-11-butene, 4-methyl-11-pentene, and 5-methyl-11-heptene.
- Polyolefin resin consisting of a homopolymer or copolymer of one-year-old olefin; vinyl chloride such as polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-olefin copolymer Resins: polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, tetrafluoroethylene-hexafluoropropylene pyrene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetra Fluorinated resin such as fluoroethylene-ethylene copolymer; Nylon 6, Niro Polyamide resins such as 6 and 6; polyimide resins: etc. can be exemplified, but polyolefin resins, especially polyethylene and polypropylene, are used because of their excellent mechanical strength, flexibility,
- the properties of the porous stretched film made of a thermoplastic resin as described above are not particularly limited, but the average pore size of the pores is small in that it is thin, has excellent strength, and has a low electric resistance.
- 0. 0 0 5-5. 0 ⁇ M, preferably 0. 0 1-2. most preferably 0 U m, 0. 0. 2 to 0. may be in the range of 2 ⁇ m.
- This average mosquito L diameter is a value measured by the bubble point method.
- the porosity of the porous film should be in the range of 20-95 o / o, preferably 30-90%, most preferably 30-60 o / o .
- the thickness of the porous stretched film used is preferably 5 to 140 Um, so that the ion exchange membrane 6 has a thickness as described later. Preferably it is in the range of 10 to 120 m, most preferably 15 to 55 ⁇ m. When such a porous stretched film is used as a porous substrate, the thickness of the obtained ion exchange membrane 6 is about the thickness of the porous stretched film + about 0 to 20 m.
- the porous stretched film made of a thermoplastic resin as described above is, for example, a method described in JP-A-9-1221964, JP-A-2002-388721, etc. You can get it. Specifically, an organic liquid is mixed with a thermoplastic resin to form a sheet or a film, and then the organic liquid is extracted with a solvent, or an inorganic filler and Z or It can be obtained by stretching a sheet filled with an organic filler.
- Such a porous stretched film is obtained as a commercially available product (for example, Asahi Kasei “Hypore”, Ube Industries “Yupore”, Tonen Tapyrus “Cetella”, Mitsubishi Chemical “Exepol”, Mitsui Chemicals “Highlet”, etc.). It is also possible.
- nonwoven fabric used as the porous substrate those manufactured by a dry method and a wet method can be used without any particular limitation.
- material of the nonwoven fabric for example, polyester fiber, polypropylene fiber, polyamide fiber, nylon fiber, acrylic fiber, rayon fiber, vinylon fiber, polyurethane fiber and the like can be used.
- Characteristics of such a nonwoven fabric is not particularly limited, thin and superior in strength, in terms of obtaining further electrical resistance is low ion-exchange membrane, weight per unit area 2 0 ⁇ 1 0 0 g / m 2 N apparent
- the thickness is preferably from 30 to 250 m.
- the thickness of the ion exchange membrane is usually about the apparent thickness of the nonwoven fabric used as the base material ⁇ 0 to about 130 ⁇ m.
- the method for bringing the polymerizable solution into contact with the above-mentioned porous substrate is not particularly limited as long as the polymerizable solution permeates into the voids of the porous substrate, but generally, coating, spraying, dipping Is adopted.
- coating, spraying, dipping Is adopted.
- Weight in a state where the polymerizable solution has penetrated and filled the voids of the porous substrate In such a case, it is preferable to raise the temperature from room temperature while pressing such a porous substrate between films having a smooth surface such as a polyester film. Polymerization while being sandwiched between films can prevent polymerization inhibition due to the influence of oxygen in the environment, and can make the surface after polymerization smooth.
- the polymerization conditions may be appropriately determined according to the type of the polymerization initiator used, the composition of the monomer used, and the like. Generally, the state of heating to about 80 to 120 ° C for 5 minutes to It may be held for about 10 hours.
- the proportion (filling rate) of the ion-exchange resin contained in the ion-exchange membrane 6 obtained by the method described above depends on the porosity of the porous substrate used and the non-polymerizable ratio in the polymerizable solution used. Although it depends on the amount of the components, it is generally in the range of 5 to 95% by mass based on the dry weight of the membrane. Particularly, in order to facilitate the permeation of drug ions and to increase the strength of the ion exchange membrane, It is preferably adjusted to a range of 10 to 90% by mass, particularly preferably to a range of 20 to 60% by mass.
- the amount of the ion exchange group Z contained in the ion exchange membrane 6 is 0.1 to 8.0 Omm o I Zg in ion exchange capacity, particularly 0.2 to 5.0 mm o I / g. g.
- Ommo I are difficult to manufacture, and those with an ion exchange capacity exceeding 8. Ommo I / g are practically impossible.
- the ion exchange membrane 6 preferably has a certain water content so that the electric resistance does not increase by drying, for example, about 5 to 90 ⁇ 1 ⁇ 2, especially about 10 ⁇ 1 ⁇ 2 or more. It preferably has a water content. In order to obtain a water content in such a range, it can be controlled by the type of the ion exchange group Z introduced into the crosslinked (meth) acrylic ion exchange resin, the ion exchange capacity, the degree of crosslinking, and the like. To obtain a higher dose of the target drug, the fixed ion concentration of the ion exchange membrane 6 should be
- mmoIg preferably water.
- the thickness of the ion exchange membrane 6 used in the iontophoresis device of the present invention is preferably 5 to 150 tm, more preferably 10 to 130 tm when the porous stretched film is used as the porous substrate. m, most preferably 15 to 60 m, and when the nonwoven fabric is used as a porous substrate, preferably 30 to 60 m. It is preferably in the range of 250 m, more preferably in the range of 50 to 200 m. The thicker the ion exchange membrane 6 is, the higher the physical strength is, while the thinner the ion exchange membrane 6 is, the better the followability to the living body surface is and the lower the electrical resistance of the ion exchange membrane 6 is.
- the ion exchange membrane 6 when used so as to be in direct contact with the surface of a living body such as the skin, the ion exchange membrane 6 may be used to secure good adhesion. Preferably, it is smooth.
- the ion-exchange membrane 6 used in the present invention can be used as long as a cross-linked (meth) acrylic resin having a (meth) acrylic structural unit to which an ion-exchange group is bonded is used as the ion-exchange resin. It may be manufactured by a method other than the above-mentioned method, for example, may be manufactured by a casting method using the above-described polymerizable solution, or may be a cross-linked () having no ion-exchange group. It is also possible to produce a membrane using a (meth) acrylic resin and then introduce an ion-exchange group into the membrane by a known method.
- the counter electrode structure 2 includes an electrode (counter electrode) 4 ′ that is a counter electrode of the working electrode 4 in the working electrode structure 1, and is an electrode that is a counter electrode in a normal iontophoresis device.
- the structure used for the part including the symbol can be determined without any limitation. That is, the counter electrode structure 2 may be the electrode (counter electrode 4 ′) itself, or the electrode (counter electrode 4 ′) is arranged on a sheet made of an ion-conductive gel, a porous film or a woven fabric.
- an electrode counter electrode 4 '
- an ion exchange membrane having a porous film as a base material or another ion exchange membrane may be used.
- a counter electrode 4 ′, an electrolyte containing section 9 containing an ionic electrolyte, and an ion exchange membrane 10 are laminated in this order, and the ion exchange membrane 10 is It is preferable that the structure be arranged above.
- the ion exchange membrane 10 may be an ion exchange membrane formed by using the above-described porous substrate and a crosslinked (meth) acrylic ion exchange resin, or may be any other ion exchange membrane.
- the porous stretched film is made of a porous material because of its excellent mechanical strength.
- An ion exchange membrane formed using the substrate is preferable.
- the ion exchange membrane 10 may be any of those which selectively transmit ions of the same polarity or opposite polarity to the medicinal ions of the target drug. In order to prevent the permeation into the counter electrode structure, it is preferable that the permeation ion of the target drug and the ion of the opposite polarity are selectively transmitted.
- the electrolyte-containing portion 9 in the counter electrode structure 2 is obtained by dissolving an ionic electrolyte in a solvent such as water or ethanol, or by mixing the solution with polyvinyl alcohol-polyvinyl pyrrolidone or the like. Gels or those obtained by impregnating a porous film, gauze, or the like with the solution or the like can be used.
- the ionic electrolyte can be used without any limitation as long as it is ionic when dissolved in a solvent such as water or ethanol such as sodium chloride or potassium chloride.
- an ion exchange membrane may be further provided between the counter electrode 4 ′ and the ion exchange membrane 10.
- an ion-conductive gel a sheet made of a porous film, woven cloth, or the like, through which ions can pass.
- a porous film or woven fabric impregnated with an ion-conductive gel or an ionic electrolyte solution, or an ionic electrolyte solution, may be provided between the ion-exchange membrane and the closest ion exchange membrane.
- a power supply unit used in a normal iontophoresis device can be used without any limitation. If the working electrode structure 1, the counter electrode structure 2, and the power supply unit 3 are independent, an external power supply that can be connected to a battery or system power supply can be used. In this case, a voltage or current stabilization system, It is preferable to have a power supply control system such as a system for applying a pulse current.
- the iontophoresis device of the present invention When the iontophoresis device of the present invention is to be portable, it is preferable to use a battery as a power source.
- the battery include a coin-type silver oxide battery, an air zinc battery, and a lithium ion battery. Powered by such a small battery
- the working electrode structure 1, the counter electrode structure 2, and the power supply unit 3 are incorporated in a single exterior material 12, as shown in Fig. 3. It can be.
- it is more preferable to use a highly flexible resin rubber as an exterior material since a high followability to the skin shape can be obtained.
- the method of using the iontophoresis device of the present invention is not particularly limited, and may be used in accordance with a known method.
- the working electrode structure 1 and the counter electrode structure 2 are used as a target for drug penetration.
- a current may be applied by applying a voltage from the power supply unit 3.
- the ion-exchange membrane 6 in the working electrode structure 1 so as to be located between the drug-containing portion 5 and the surface of the living body, the pharmacological effect of the ionic drug existing in the drug-containing portion 6 can be improved. Ions having an effect permeate the living body through the ion exchange membrane 6.
- the ion exchange membrane was immersed in an aqueous solution of 1 (mol ZI) HCI for 10 hours or more. Then, in the case of a cation exchange membrane, the hydrogen ion type is replaced with a sodium ion type with a 1 (mol ZI) NaCI aqueous solution, and the liberated hydrogen ions are replaced with a potentiometric titrator using an aqueous sodium hydroxide solution.
- COMPIT ITE-900 manufactured by Hiranuma Sangyo Co., Ltd.
- the chloride ion type is replaced with a nitrate ion type with an aqueous solution of 1 (mo IZI) NaN03, and the liberated chloride ion is replaced with a potentiometric titrator (COMT ITE —900, manufactured by Hiranuma Sangyo Co., Ltd.) (Amo I).
- a potentiometric titrator COMPIT ITE —900, manufactured by Hiranuma Sangyo Co., Ltd.
- the same ion exchange membrane was immersed in 1 (mol ZI) HCI aqueous solution for 4 hours or more, After sufficiently washing with ion-exchanged water, the membrane was taken out, the surface water was wiped off with a tissue paper or the like, and the wet weight (Wg) was measured. Next, the membrane was dried under reduced pressure at 60 ° C. for 5 hours, and its weight was measured (D g). Based on these measured values, the ion exchange capacity, the water content, and the fixed ion concentration were calculated by the following equations.
- Ion exchange capacity A X 100 O / D [mmo I Zg—dry weight]
- Moisture content 100 X (W—D) D [%]
- An ion exchange membrane is sandwiched in a two-chamber cell with a platinum black electrode, and both sides of the ion exchange membrane are filled with 3 (mo I / I) sulfuric acid aqueous solution.
- the resistance between the electrodes was measured, and the resistance was determined from the difference between the resistance between the electrodes and the resistance between the electrodes when no ion exchange membrane was provided.
- As the membrane used for the above measurement a membrane previously equilibrated in a 3 (moI / I) sulfuric acid aqueous solution was used.
- the chamber was filled with an aqueous solution of the drug at a predetermined concentration
- the virtual skin chamber was filled with a 0.9% by mass aqueous sodium chloride solution
- the two electrode chambers were filled with a 0.1 (mol Zl) sodium lactate aqueous solution.
- the anion exchange membrane obtained in Comparative Example 1 is used as the protective ion exchange membrane, and when the measurement target is an anion exchange membrane.
- the cation exchange membrane obtained in Comparative Example 2 was used.
- the drug solution chamber and the virtual skin chamber were agitated, and electricity was supplied at a predetermined constant current density or constant voltage for 3 hours.
- the virtual skin room The liquid was drawn out and the amount of the drug was measured by liquid chromatography. The same operation was performed without conducting electricity, the blank value was measured, and the difference from the amount of drug when electricity was supplied was calculated to be the drug permeation amount.
- each component was mixed to prepare a polymerizable monomer composition (polymerizable solution).
- the porous stretched film was taken out from the glass container, 1 00 after coating the both sides of the film with a polyester film of im, 3 k gZ cm 2 of nitrogen MotoKa pressure, 2 hours at 70 ° C, then Heat polymerization was performed at 90 ° C. for 3 hours to obtain a quaternary ammonium type anion exchange membrane.
- An anion exchange membrane was produced in the same manner as in Production Example 1 except that the composition shown in Table 1 was used instead of the polymerizable monomer composition.
- Table 1 shows the physical properties of the obtained film.
- An anion exchange membrane was produced in the same manner as in Production Example 1 except that the porous stretched film was replaced with the nonwoven fabric shown in Table 1. Table 1 shows the physical properties of the obtained film. Production Examples 6 to 8:
- a cation exchange membrane was produced in the same manner as in Production Example 1 except that the composition shown in Table 1 was used instead of the polymerizable monomer composition. Table 1 shows the physical properties of the obtained film.
- A Porous film made of polyethylene with a weight average molecular weight of 250,000, film thickness of 25 ⁇ m, average pore size of 0.03 Um, porosity of 37%
- B Nonwoven fabric polypropylene polyethylene composite fiber, apparent film thickness of 180 / im, basis weight 70gZm2, porosity 65%
- each component was mixed to prepare a polymerizable monomer composition (polymerizable solution).
- porous stretched film was taken out of the monomer composition, and both sides of the film were covered with a polyester film of 1 OO jWm, and then under a nitrogen pressure of 3 kg / cm 2 ,
- the monomer composition shown in Table 2 was filled in a porous stretched film in the same manner as in Comparative Production Example 1. Then, taking out the film from the monomer composition, 1 OO after coating the both sides of the porous film with a polyester film of jt m, 3 k gZcm 2 of nitrogen pressure, 5 hours polymerization at 80 ° C did. Then, the obtained membrane was immersed in a 1: 1 mixture of 98% concentrated sulfuric acid and chlorosulfonic acid having a purity of 90% or more at 40 ° C. for 45 minutes to obtain a sulfonic acid type cation exchange membrane.
- Neocepta AMX [manufactured by Tokuyama Corporation]
- Neosepta CMX manufactured by Tokuyama Corporation
- Naphion NR-111 (manufactured by DuPont) Table 2 also shows the properties of the seeds.
- Neosepta AMX and Neosepta CMX are ion-exchange membranes made of cross-linked polystyrene
- Naphion NR-111 is an ion-exchange membrane of a non-cross-linked fluororesin system.
- A Porous film Made of polyethylene with a weight average molecular weight of 250,000, film thickness of 25 i rn, average pore diameter of 0.03 ⁇ m, porosity of 37% CMS: Chloromethylstyrene
- test membrane prepared in Production Examples 1 to 5
- a 1-Ommo I ZL solution of dexamethasone phosphate disodium salt, an anionic drug was tested in Fig. 2.
- the drug solution chamber of the device was filled, and the amount of drug permeation was measured using virtual skin under a constant current condition of a current density of 0.5 mAZcm 2 , and the results are shown in Table 3.
- Neosepta AMX an anion exchange membrane (manufactured by Tokuyama; membrane properties are listed in Table 1), was used as the ion exchange membrane based on woven fabric used for conventional iontophoresis.
- the drug permeation amount was measured in the same manner as in Example 1. Table 3 shows the results.
- the drug permeation amount was measured in the same manner as in Example 1 except that the anion exchange membrane produced in Comparative Production Example 1 was used as the ion exchange membrane having a styrene-based ion exchange resin. Table 3 shows the results.
- the drug permeation amount was measured in the same manner as in Example 1 using only the virtual skin without using the ion exchange membrane (test membrane) to be measured. Table 3 shows the results.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05745927A EP1767243A4 (en) | 2004-05-26 | 2005-05-25 | Iontophoresis device |
US11/597,410 US20070270733A1 (en) | 2004-05-26 | 2005-05-25 | Iontophoresis Device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-156594 | 2004-05-26 | ||
JP2004156594A JP2005334263A (ja) | 2004-05-26 | 2004-05-26 | イオントフォレーシス装置及びイオン交換膜 |
Publications (1)
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WO2005115534A1 true WO2005115534A1 (ja) | 2005-12-08 |
Family
ID=35450668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/010009 WO2005115534A1 (ja) | 2004-05-26 | 2005-05-25 | イオントフォレーシス装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070270733A1 (ja) |
EP (1) | EP1767243A4 (ja) |
JP (1) | JP2005334263A (ja) |
WO (1) | WO2005115534A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8386030B2 (en) | 2005-08-08 | 2013-02-26 | Tti Ellebeau, Inc. | Iontophoresis device |
JPWO2007026671A1 (ja) * | 2005-08-29 | 2009-03-05 | Tti・エルビュー株式会社 | センサからの情報により投与すべき薬剤の選定を行うイオントフォレーシス装置 |
US20070071807A1 (en) * | 2005-09-28 | 2007-03-29 | Hidero Akiyama | Capsule-type drug-releasing device and capsule-type drug-releasing device system |
JP2007244699A (ja) * | 2006-03-16 | 2007-09-27 | Transcutaneous Technologies Inc | イオントフォレーシス装置 |
US20080234629A1 (en) * | 2007-03-22 | 2008-09-25 | John Petersen | Water electrolysis to facilitate drug delivery by iontophoresis |
WO2011025867A1 (en) | 2009-08-26 | 2011-03-03 | Siemens Pte. Ltd. | Ion exchange membranes |
EA023933B1 (ru) | 2010-10-15 | 2016-07-29 | ЭВОКУА УОТЕР ТЕКНОЛОДЖИЗ ЭлЭлСи | Способ получения катионообменной мембраны |
ES2768330T3 (es) | 2010-10-15 | 2020-06-22 | Evoqua Water Tech Llc | Membranas de intercambio aniónico y proceso para su producción |
EP2606973A1 (de) * | 2011-12-22 | 2013-06-26 | LANXESS Deutschland GmbH | Thiolgruppenhaltiges Acrylatharz |
CN104703697B (zh) | 2012-10-04 | 2018-11-23 | 懿华水处理技术有限责任公司 | 高性能的阴离子交换膜及其制造方法 |
CN104837542B (zh) | 2012-10-11 | 2017-04-05 | 伊沃夸水处理技术有限责任公司 | 涂覆的离子交换膜 |
KR101568861B1 (ko) * | 2014-01-14 | 2015-11-13 | 주식회사 이노메디텍 | 음이온 교환막의 제조방법 |
JP2018127506A (ja) * | 2015-06-17 | 2018-08-16 | 株式会社トクヤマ | 水電解用イオン交換膜、及び該イオン交換膜の製造方法 |
EP3710084A1 (en) * | 2017-11-17 | 2020-09-23 | Swedish Orphan Biovitrum AB (publ) | Syringe assembly with ion-exchange material |
KR102771420B1 (ko) | 2018-09-25 | 2025-02-20 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 1가 선택성 양이온 교환막 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62159639A (ja) * | 1986-01-08 | 1987-07-15 | 積水化学工業株式会社 | 医療用導電性粘着剤およびそれを用いた医療用粘着電極 |
JPH08245801A (ja) * | 1995-01-11 | 1996-09-24 | Nippon Kasei Chem Co Ltd | 架橋剤 |
JP2000229128A (ja) * | 1999-02-10 | 2000-08-22 | R & R Ventures Kk | イオントフォレーゼ装置 |
JP2002536073A (ja) * | 1999-02-02 | 2002-10-29 | ファースト ウォーター リミテッド | 生体接着剤組成物 |
WO2002093676A2 (en) * | 2001-05-15 | 2002-11-21 | Ballard Power Systems Inc. | Ion-exchange materials with improved ion conductivity |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4434249A (en) * | 1982-06-28 | 1984-02-28 | Electrochemical Technology Corp. | Method of preparing acrylic ion-transfer membranes |
CA2001444C (en) * | 1988-10-28 | 2000-07-25 | Darrel F. Untereker | Iontophoresis electrode |
JP3560430B2 (ja) * | 1996-11-27 | 2004-09-02 | 株式会社トクヤマ | 微多孔性荷電膜およびその製造方法 |
JP4793806B2 (ja) * | 2005-03-22 | 2011-10-12 | Tti・エルビュー株式会社 | イオントフォレーシス装置 |
-
2004
- 2004-05-26 JP JP2004156594A patent/JP2005334263A/ja active Pending
-
2005
- 2005-05-25 US US11/597,410 patent/US20070270733A1/en not_active Abandoned
- 2005-05-25 WO PCT/JP2005/010009 patent/WO2005115534A1/ja active Application Filing
- 2005-05-25 EP EP05745927A patent/EP1767243A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS62159639A (ja) * | 1986-01-08 | 1987-07-15 | 積水化学工業株式会社 | 医療用導電性粘着剤およびそれを用いた医療用粘着電極 |
JPH08245801A (ja) * | 1995-01-11 | 1996-09-24 | Nippon Kasei Chem Co Ltd | 架橋剤 |
JP2002536073A (ja) * | 1999-02-02 | 2002-10-29 | ファースト ウォーター リミテッド | 生体接着剤組成物 |
JP2000229128A (ja) * | 1999-02-10 | 2000-08-22 | R & R Ventures Kk | イオントフォレーゼ装置 |
WO2002093676A2 (en) * | 2001-05-15 | 2002-11-21 | Ballard Power Systems Inc. | Ion-exchange materials with improved ion conductivity |
Non-Patent Citations (1)
Title |
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See also references of EP1767243A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20070270733A1 (en) | 2007-11-22 |
EP1767243A1 (en) | 2007-03-28 |
EP1767243A4 (en) | 2009-06-17 |
JP2005334263A (ja) | 2005-12-08 |
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