JP2006502762A - 感染に対して抵抗性を有する生体適合性のインプラント用酸化チタンコーティング及びその調製方法 - Google Patents
感染に対して抵抗性を有する生体適合性のインプラント用酸化チタンコーティング及びその調製方法 Download PDFInfo
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- JP2006502762A JP2006502762A JP2004537112A JP2004537112A JP2006502762A JP 2006502762 A JP2006502762 A JP 2006502762A JP 2004537112 A JP2004537112 A JP 2004537112A JP 2004537112 A JP2004537112 A JP 2004537112A JP 2006502762 A JP2006502762 A JP 2006502762A
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- Prior art keywords
- coating
- ions
- implant
- titanium oxide
- metal
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- 239000002241 glass-ceramic Substances 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 125000002510 isobutoxy group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])O* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 208000015688 methicillin-resistant staphylococcus aureus infectious disease Diseases 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000004963 pathophysiological condition Effects 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- PXDRFTPXHTVDFR-UHFFFAOYSA-N propane;titanium(4+) Chemical compound [Ti+4].C[CH-]C.C[CH-]C.C[CH-]C.C[CH-]C PXDRFTPXHTVDFR-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 description 1
- 229940071536 silver acetate Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000392 somatic effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- CXVCSRUYMINUSF-UHFFFAOYSA-N tetrathiomolybdate(2-) Chemical compound [S-][Mo]([S-])(=S)=S CXVCSRUYMINUSF-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000816 toxic dose Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
- A61L27/306—Other specific inorganic materials not covered by A61L27/303 - A61L27/32
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Abstract
Description
金属イオンを含む生体適合性の酸化チタンコーティングをインプラント上に調製する方法であって、
この方法によってインプラントを調製でき、
生理的条件下でコーティング中から周囲へ金属イオンが放出され、
金属イオンがコーティング全体に均一に分散している方法が提供される。
テトラブトキシチタネート69.5gをn−ブタノール500g中に室温において溶解し、不活性ガス条件下で2時間撹拌した。その後、酢酸銅を低温飽和まで分割して添加する。上清を沈殿から回収し、コーティングとして使用する。
抗菌コーティングの作用状態を実証するために、一方では臨床的に関連のある細菌菌株(黄色ブドウ球菌:ATCC25923、MRSA27065、及び、表皮ブドウ球菌:ATCC35984、RP62a、SE183)を使用し、他方では結合組織細胞(L292、マウス繊維芽細胞)及び胎児骨芽細胞(MC3T3−E1)を使用して研究を実施した。本発明による抗菌コーティングを施したTiAl6V4プレート(直径14.5mm、厚さ1mm)を試料材料として使用した。直接比較するために、細胞と細菌について同一の細胞培養培地(培地:90%のRPMI1640(=2.05mMグルタミン含有血清)、10%FCS(ウシ胎児血清);インキュベーション:24時間、37℃、5%CO2、静置培養、暗室)中で実験した。
細胞株:MC3T3−E1(マウス骨芽細胞)
L292(マウス繊維芽細胞)
24ウェル培養皿(ポリスチレン製)
接種:12万個/ml及びウェル、1gフェイズ(phase)、継代6回
細胞増殖:37℃の震盪インキュベーター中で8分間のトリプシン処理(トリプシンEDTA300μl)、酵素反応は培地700μlにより停止させる。
細菌株(ATCC25923、MRSA27065、ATCC35984、RP62a、SE183)
全ての実験は細胞についての試験と同様に実施した。
接種:10万個/ml及びウェル
銅−キセロゲル:例1として、本発明により銅含有酸化チタンコーティングを一層施したTiAl6V4
(銅−キセロゲル)二層:本発明により銅含有酸化チタンコーティングを二層施したTiAl6V4
キセロゲル:銅を添加した純粋な酸化チタンコーティング
銅−キセロゲル:例1として、本発明により銅含有酸化チタンコーティングを一層施したTiAl6V4
(銅−キセロゲル)二層:本発明により銅含有酸化チタンコーティングを二層施したTiAl6V4
キセロゲル:銅を添加した純粋な酸化チタンコーティング
PS:コントロールとしてのポリスチレン
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[7]Jokinen M.,Patsi M.,Rahiala H.,Peltola T.,Ritala M.,Rosenholm J.B.,Influence of sol and surface properties on in vitro bioactivity of sol−gel−derived TiO2 and TiO2−SiO2 films deposited by dip−coating method,J.Biomed.Mater.Res.42(1998)295−302
[8]Heidenau F.,Schmidt H.,Stenzel F.,Ziegler G.,Sol−Gel−Derived Titania with Gradient Porosity,Key.Eng.Mater.161−163(1999)115−116
[9]Feng Q.L.,Cui F.Z.,Kim T.N.,Kim J.W.,Ag−substituted hydroxyapatite coatings with both antimicrobial effects and biocompatibility,J Mater Sci Lett 18(1999)559−61
[10]Shirkhanzadeh M.,Azadegan,M.,Formation of carbonate apatite on calcium phosphate coatings containing silver ions,J Mater Sci:Mater Med 9(1998)385−91
[11]Gristina A.G.,Biomaterial−centered infection:Microbial adhesion versus tissue integration,Science 237(1987)1588−95
[12]Dunne W.M.Jr.,Mason E.O.Jr.,Kaplan S.L.,Diffusion of rifampin and vancomycin through a Staphylococcus epidermidis biofilm.Antimicrob.Agents Chemother..37(1993)2522−6
[13]Darouiche R.O.,Dhir A.,Miller A.J.,Landon G.C.,Raad I.I.,Musher D.M.,Vancomycin penetration into biofilm covering infected prostheses and effect on bacteria,J.Infect.Dis.170(1994)720−3
Claims (28)
- インプラント上に酸化チタンコーティングを調製する方法であって、
以下の段階:
a)有機溶媒、有機金属性の酸化チタン前駆物質、並びに、任意に水及び/又は酸を含む調製物に、金属塩及び/又は有機金属化合物を添加して、調製物中で金属イオンを均一に分散させる段階;
b)a)で調製した調製物をインプラント上に塗布する段階;並びに、
c)前記で塗布したコーティングを乾燥させる段階:
を含む
ことを特徴とする方法。 - 前記段階c)の後、100〜1000℃で加熱する
ことを特徴とする請求項1に記載の方法。 - 前記インプラントは、金属製、合金製、ガラス製、セラミック製、プラスチック製及び複合材料製インプラント、又は、骨インプラントである
ことを特徴とする請求項1又は2に記載の方法。 - 前記インプラントは、カテーテル、骨接合プレート、体内プロテーゼ、外部フィクサツール、内部フィクサツール、釘、ねじ及び/又はワイヤー、心臓弁、人工血管又はシャント、美顔手術/形成外科手術用インプラント、人工中耳並びに歯科インプラントである
ことを特徴とする請求項1〜3のいずれか1項に記載の方法。 - 金属製インプラントの場合の前記金属は、チタン、鋼、鉄、及び/又は、鋼と鉄とチタンを含む合金、及び/又は、CoCrである
ことを特徴とする請求項1〜4のいずれか1項に記載の方法。 - 前記合金は、チタン合金、好ましくはTiAl6V4若しくはTiAl6Nb7、CoCr合金、又は、骨接合用鋼、好ましくはAISI316Lである
ことを特徴とする請求項1〜5のいずれか1項に記載の方法。 - 前記プラスチックは、ポリエチレン、ポリプロピレン、ポリテトラフルオロエチレン、ポリエチレンテレフタレート、ポリアミド、ポリウレタン、ポリシロキサン、ポリシロキサンエラストマー、ポリエーテルエーテルケトン及び/又はポリスルホンである
ことを特徴とする請求項1〜6のいずれか1項に記載の方法。 - 有機溶媒としては、炭素数2〜8の鎖長の直鎖若しくは分岐アルコール、又は、環状、芳香族若しくは複素環式芳香族炭化水素若しくはその誘導体を使用する
ことを特徴とする請求項1〜7のいずれか1項に記載の方法。 - 有機金属性の酸化チタン前駆物質は、酸素結合で結合した直鎖又は分岐アルキル基及び/又はアルケニル基を有する四配位チタンであって、前記アルキル基及び/又はアルケニル基は好ましくは炭素数2〜5の鎖長であって、O原子及び/又はN原子を置換により又は鎖中に有することができる
ことを特徴とする請求項1〜8のいずれか1項に記載の方法。 - 酸としては硝酸、塩酸、硫酸、リン酸、有機酸又はこれらの混合物を使用する
ことを特徴とする請求項1〜9のいずれか1項に記載の方法。 - 金属塩及び/又は有機金属化合物は、一価〜四価の金属イオン、好ましくは亜鉛イオン、水銀イオン、バナジウムイオン、アルミニウムイオン、チタンイオン、クロミウムイオン、カドミウムイオン、スズイオン、鉛イオン、ニッケルイオン及び/又はコバルトイオン、より好ましくはカルシウムイオン、マグネシウムイオン、銅イオン、亜鉛イオン及び/又は銀イオンを有する
ことを特徴とする請求項1〜10のいずれか1項に記載の方法。 - 前記段階a)における金属イオン濃度は、塗布して乾燥させ、任意に加熱したコーティング中の金属イオン濃度が1〜20重量%、好ましくは5〜15重量%、更に好ましくは10〜12重量%となるように選択する
ことを特徴とする請求項1〜11のいずれか1項に記載の方法。 - 前記塗布は、ディップコーティング、スピンコーティング、ブレードコーティング、印刷又はスプレーによって実施する
ことを特徴とする請求項1〜12のいずれか1項に記載の方法。 - 前記段階a)の調製物を、乾燥させて任意に加熱した後のコーティング一層の厚さが50〜1000nm、好ましくは50〜200nm、より好ましくは130〜170nm、最も好ましくは約150nmとなるような厚さで塗布する
ことを特徴とする請求項1〜13のいずれか1項に記載の方法。 - 前記段階a)の調製物をゾル状で塗布し、金属塩及び/又は有機金属化合物が均一に分散及び溶解している前記ゾルは、塗布中又は塗布後に、金属イオンが均一に分散及び溶解しているゲルへと変形する
ことを特徴とする請求項1〜14のいずれか1項に記載の方法。 - 請求項1の段階a)〜c)を一回又は数回繰り返して、一層以上の酸化チタンコーティングをインプラント上に調製し、各コーティングは前記段階c)の後に100〜1000℃で任意に加熱することができる
ことを特徴とする請求項1〜15のいずれか1項に記載の方法。 - 前記金属イオン濃度が前記段階a)において異なっていて、これによって、元々のコーティング中、及び、塗布して乾燥させ、任意に加熱した一層以上のコーティング中の金属イオン濃度が異なっている
ことを特徴とする請求項16に記載の方法。 - 前記金属イオン濃度が前記段階a)において異なっていて、これによって、元々のコーティング中、及び、塗布して乾燥させ、任意に加熱した一層以上のコーティング中の金属イオン濃度が、インプラントに近接する内側のコーティングから外側に向かうにつれて減少していく
ことを特徴とする請求項16又は17に記載の方法。 - 前記段階c)において塗布したコーティングの乾燥を、超臨界条件下で実施する
ことを特徴とする請求項1〜18のいずれか1項に記載の方法。 - 塗布した各コーティングは、異なる金属イオンを有している
ことを特徴とする請求項16〜19のいずれか1項に記載の方法。 - 酸化チタンコーティングを有するインプラントであって、
請求項1〜20のいずれか1項に記載の方法によって調製できる
ことを特徴とするインプラント。 - コーティング中で得られる金属イオンは、生理的条件下においてコーティング中から周囲の媒体中へ溶出できる
ことを特徴とする請求項21に記載のインプラント。 - 各酸化チタンコーティング一層の厚さが、50〜1000nm、好ましくは50〜200nm、より好ましくは130〜170nm、最も好ましくは約150nmである
ことを特徴とする請求項21又は22に記載のインプラント。 - 前記金属イオンは、各酸化チタンコーティング中に均一に分散している
ことを特徴とする請求項21〜23のいずれか1項に記載のインプラント。 - 酸化チタンコーティング中に含まれる金属イオン濃度は、前記コーティングが最初に抗菌効果を有し、かつ、調節可能な時間の後に生体に適合するような濃度である
ことを特徴とする請求項21〜24のいずれか1項に記載のインプラント。 - 酸化チタンコーティング中の金属イオン濃度は、1〜20重量%、好ましくは5〜15重量%、更に好ましくは10〜12重量%である
ことを特徴とする請求項21〜25のいずれか1項に記載のインプラント。 - 酸化チタンコーティング中に含まれる金属イオンは、銅イオン及び/又は銀イオンである
ことを特徴とする請求項21〜26のいずれか1項に記載のインプラント。 - 患者に移植するための請求項21〜27のいずれか1項に記載のインプラントの使用。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10243132A DE10243132B4 (de) | 2002-09-17 | 2002-09-17 | Antiinfektiöse, biokompatible Titanoxid-Beschichtungen für Implantate sowie Verfahren zu deren Herstellung |
PCT/EP2003/010334 WO2004026346A2 (de) | 2002-09-17 | 2003-09-17 | Antiinfektiöse, biokompatible titanoxid-beschichtungen für implantate sowie verfahren zu deren herstellung |
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- 2003-09-17 JP JP2004537112A patent/JP4606165B2/ja not_active Expired - Fee Related
- 2003-09-17 AT AT03770943T patent/ATE422907T1/de not_active IP Right Cessation
- 2003-09-17 AU AU2003280335A patent/AU2003280335B2/en not_active Ceased
- 2003-09-17 EP EP03770943A patent/EP1539253B1/de not_active Expired - Lifetime
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JP2010501309A (ja) * | 2006-09-01 | 2010-01-21 | ビオサー−エントヴィックルングス−ゲーエムベーハー | インプラントに対する構造的コーティングおよびその製造方法 |
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JP2015057126A (ja) * | 2008-02-29 | 2015-03-26 | スミス アンド ネフュー インコーポレーテッド | 生物医学的応用のための勾配コーティング |
US9011965B2 (en) | 2008-02-29 | 2015-04-21 | Smith & Nephew, Inc. | Gradient coating for biomedical applications |
JP2017060889A (ja) * | 2008-02-29 | 2017-03-30 | スミス アンド ネフュー インコーポレイテッド | 生物医学的応用のための勾配コーティング |
JP2014514124A (ja) * | 2011-05-11 | 2014-06-19 | デントスプリー・アイエイチ・エービー | 生体適合性部材 |
WO2019026540A1 (ja) * | 2017-08-01 | 2019-02-07 | 学校法人中部大学 | 生体活性を有する立体構造物及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
DE50311199D1 (de) | 2009-04-02 |
US20060161256A1 (en) | 2006-07-20 |
EP1539253A2 (de) | 2005-06-15 |
AU2003280335A1 (en) | 2004-04-08 |
DE10243132A1 (de) | 2004-04-01 |
AU2003280335B2 (en) | 2009-09-10 |
US7906132B2 (en) | 2011-03-15 |
DE10243132B4 (de) | 2006-09-14 |
EP1539253B1 (de) | 2009-02-18 |
WO2004026346A3 (de) | 2004-05-06 |
WO2004026346A2 (de) | 2004-04-01 |
ATE422907T1 (de) | 2009-03-15 |
JP4606165B2 (ja) | 2011-01-05 |
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