JP4623934B2 - ガスクラスタイオンビーム技術を応用した人工関節の作用を改善する方法とシステム - Google Patents
ガスクラスタイオンビーム技術を応用した人工関節の作用を改善する方法とシステム Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/048—Coating on selected surface areas, e.g. using masks using irradiation by energy or particles
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/48—Ion implantation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/317—Electron-beam or ion-beam tubes for localised treatment of objects for changing properties of the objects or for applying thin layers thereon, e.g. for ion implantation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/30673—Lubricating means, e.g. synovial pocket
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
- A61F2002/30685—Means for reducing or preventing the generation of wear particulates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2002/30934—Special articulating surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/06—Sources
- H01J2237/08—Ion sources
- H01J2237/0812—Ionized cluster beam [ICB] sources
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Analytical Chemistry (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Toxicology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
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Description
本出願は2001年5月9日出願の米国仮出願第60/289737号「ガスクラスタイオンビーム技術を応用した人工股関節の作用を改善する方法とシステム」の優先権を主張する。
発明の分野
本発明は人工関節等の医療具に関し、特にガスクラスタイオンビーム技術を利用した人工関節の磨耗を減少させる方法とシステムに関する。
関節交換すなわち関節形成術は外科処置であり、関節の疾患部分を取り除いて新しい人工部分と交換する。現在、これら人工関節は高架橋ポリエチレン、金属-金属およびセラミック-セラミック材料のごとき改良材料で製造されている。関節交換後は骨軟化が大きな問題であり、インプラント(埋込材)自体の破片による炎症が関与すると考えられている。例えば全股関節交換の場合、幾分かの骨軟化症状は術後10年以内に40%程度で発生する。
それら目的並びに他の目的は以下で解説する本発明によって達成される。
Claims (10)
- ガスクラスタイオンビーム処理によって人工関節の1部材の非平坦表面を改良する装置であって、
真空チャンバと、
該真空チャンバと作動式に連動し、ガスクラスタイオンビームを発生させるガスクラスタイオンビーム源と、
通路に沿ってガスクラスタイオンビームを加速させる加速器と、
該ガスクラスタイオンビーム通路内で改良対象の非平坦表面を配置調整させる配置手段であって、照射時に垂直入射ビームの15°以内のビーム入射角で前記非平坦表面の所定部分を照射するように前記人工関節の前記1部材を関節処理する手段を含んだ配置手段と、
加速された前記ガスクラスタイオンビームで前記非平坦表面の異なる部分を非均質に照射する照射手段であって、該非平坦表面の溝または窪みの所定の紋様のエッチングを制御するように設計されている照射手段と、
を含んで構成されることを特徴とする装置。 - 表面に形成された所定の紋様は潤滑剤保持のために多様な高さを有することを特徴とする請求項1記載の装置。
- 表面に形成された所定の紋様は1ミクロン未満の高さであり、潤滑剤は体液であることを特徴とする請求項1記載の装置。
- 表面を非均質に照射する照射手段は加速されたガスクラスタイオンビームを照射する前に前記表面上または該表面に近接して置かれる表面用マスクを含んでおり、該マスクは複数の開口部、多様な厚み、またはそれらの組み合わせを有しており、ガスクラスタイオンビーム照射による表面改良に影響を及ぼす紋様を形成していることを特徴とする請求項1記載の装置。
- ガスクラスタイオンビーム処理によって人工関節部材の非平坦表面を改良する方法であって、
真空チャンバ内でガスクラスタイオンビームを形成するステップと、
処理のため、該ガスクラスタイオンビームの通路内に前記真空チャンバ内の前記表面を配置するステップと、
前記ガスクラスタイオンビームで前記表面の異なる部分を非均質に照射して該表面に溝通または窪みの所定の紋様を形成する照射ステップと、
照射時に垂直入射ビームの15°以内のビーム入射角で前記人工関節部材の複数部分を照射するように該人工関節部材を関節処理するステップと、
を含んで成ることを特徴とする方法。 - 紋様は潤滑剤を保持のために多様な高さを有していることを特徴とする請求項5記載の方法。
- 紋様は1ミクロン未満の多様な高さを有しており、潤滑剤は体液であることを特徴とする請求項5記載の方法。
- 照射時にマスクが表面上または該表面に近接して置かれて照射紋様加工を制御し、該マスクは複数の開口部、多様な厚み、またはそれらの組み合わせを有しており、ガスクラスタイオンビーム照射による表面改良に影響を及ぼす紋様を形成していることを特徴とする請求項5記載の方法。
- マスクは金属ホイルまたはフィルムであることを特徴とする請求項8記載の方法。
- ガスクラスタイオンビームを所定の小径に焦点処理あるいはコリメート処理するステップをさらに含んでおり、非均質照射ステップは該小径ガスクラスタイオンビームに対して表面を制御下で配置処理することで実行されることを特徴とする請求項5記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28973701P | 2001-05-09 | 2001-05-09 | |
PCT/US2002/014658 WO2002089702A2 (en) | 2001-05-09 | 2002-05-09 | Method and system for improving the effectiveness of artificial joints by the application of gas cluster ion beam technology |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005511109A JP2005511109A (ja) | 2005-04-28 |
JP4623934B2 true JP4623934B2 (ja) | 2011-02-02 |
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Application Number | Title | Priority Date | Filing Date |
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JP2002586844A Expired - Fee Related JP4623934B2 (ja) | 2001-05-09 | 2002-05-09 | ガスクラスタイオンビーム技術を応用した人工関節の作用を改善する方法とシステム |
Country Status (5)
Country | Link |
---|---|
US (1) | US6863786B2 (ja) |
EP (1) | EP1392200B1 (ja) |
JP (1) | JP4623934B2 (ja) |
AU (1) | AU2002308659A1 (ja) |
WO (1) | WO2002089702A2 (ja) |
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EP1393601B1 (en) * | 2001-05-11 | 2010-09-29 | Exogenesis Corporation | Method for improving the effectiveness of medical devices by adhering drugs to the surface thereof |
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WO2005031838A1 (ja) * | 2003-09-30 | 2005-04-07 | Japan Aviation Electronics Industry Limited | 固体表面の平坦化方法及びその装置 |
US20050272237A1 (en) * | 2004-06-03 | 2005-12-08 | Epion Corporation | Dual damascene integration structure and method for forming improved dual damascene integration structure |
US7367110B2 (en) * | 2004-09-27 | 2008-05-06 | Hitachi Global Storage Technologies Netherlands B.V. | Method of fabricating a read head having shaped read sensor-biasing layer junctions using partial milling |
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US20060127443A1 (en) * | 2004-12-09 | 2006-06-15 | Helmus Michael N | Medical devices having vapor deposited nanoporous coatings for controlled therapeutic agent delivery |
US20070038176A1 (en) * | 2005-07-05 | 2007-02-15 | Jan Weber | Medical devices with machined layers for controlled communications with underlying regions |
US20070224235A1 (en) * | 2006-03-24 | 2007-09-27 | Barron Tenney | Medical devices having nanoporous coatings for controlled therapeutic agent delivery |
US8187620B2 (en) * | 2006-03-27 | 2012-05-29 | Boston Scientific Scimed, Inc. | Medical devices comprising a porous metal oxide or metal material and a polymer coating for delivering therapeutic agents |
US20070264303A1 (en) * | 2006-05-12 | 2007-11-15 | Liliana Atanasoska | Coating for medical devices comprising an inorganic or ceramic oxide and a therapeutic agent |
US8815275B2 (en) | 2006-06-28 | 2014-08-26 | Boston Scientific Scimed, Inc. | Coatings for medical devices comprising a therapeutic agent and a metallic material |
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US8070797B2 (en) | 2007-03-01 | 2011-12-06 | Boston Scientific Scimed, Inc. | Medical device with a porous surface for delivery of a therapeutic agent |
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- 2002-05-09 AU AU2002308659A patent/AU2002308659A1/en not_active Abandoned
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- 2002-05-09 JP JP2002586844A patent/JP4623934B2/ja not_active Expired - Fee Related
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EP1392200A2 (en) | 2004-03-03 |
EP1392200A4 (en) | 2007-05-30 |
WO2002089702A3 (en) | 2002-12-27 |
JP2005511109A (ja) | 2005-04-28 |
EP1392200B1 (en) | 2011-10-12 |
US6863786B2 (en) | 2005-03-08 |
AU2002308659A1 (en) | 2002-11-18 |
US20030009233A1 (en) | 2003-01-09 |
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