JP2008229325A - 骨セメントを用いることなく使用できる人工インプラント - Google Patents
骨セメントを用いることなく使用できる人工インプラント Download PDFInfo
- Publication number
- JP2008229325A JP2008229325A JP2008033195A JP2008033195A JP2008229325A JP 2008229325 A JP2008229325 A JP 2008229325A JP 2008033195 A JP2008033195 A JP 2008033195A JP 2008033195 A JP2008033195 A JP 2008033195A JP 2008229325 A JP2008229325 A JP 2008229325A
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- JP
- Japan
- Prior art keywords
- layer
- bone
- attachment
- metal
- implant according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007943 implant Substances 0.000 title claims abstract description 29
- 239000002639 bone cement Substances 0.000 title claims abstract description 12
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 15
- 230000012010 growth Effects 0.000 claims description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 8
- 238000010309 melting process Methods 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000011344 liquid material Substances 0.000 claims description 2
- 238000000110 selective laser sintering Methods 0.000 claims description 2
- 230000008468 bone growth Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000013536 elastomeric material Substances 0.000 description 4
- 210000003275 diaphysis Anatomy 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 210000000588 acetabulum Anatomy 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002745 epiphysis Anatomy 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[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 XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
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- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0019—Angular shapes rectangular
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0025—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in roughness
-
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
-
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
- A61F2310/00407—Coating made of titanium or of Ti-based alloys
-
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
-
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00952—Coating, pre-coating or prosthesis-covering structure made of bone cement, e.g. pre-applied PMMA cement mantle
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
【解決手段】本発明は、骨セメントを伴うことなく患者の骨中に挿入するため或いは患者の骨に対して取り付けるための取付部を有する人工インプラントであって、前記骨に対して取り付けられるべき前記取付部の外面が合成樹脂材料から形成される第1の層を有し、この第1の層上にわたって金属材料からなる第2の層が固定され、前記第2の層の第1の基端部は、骨内成長または骨上成長を促すために多孔質であり或いは粗面化されており、前記第2の層の第2の先端部は、前記第1の基端部に対して孔が少なく、殆ど孔が無く或いは殆ど粗面化されておらず或いは滑らかである。
【選択図】図1
Description
Claims (15)
- 骨セメントを伴うことなく患者の骨中に挿入するため或いは患者の骨に対して取り付けるための取付部を有する人工インプラントであって、前記骨に対して取り付けられるべき前記取付部の外面が合成樹脂材料から形成される第1の層を有し、前記第1の層上にわたって金属材料からなる第2の層が固定され、前記第2の層の第1の基端部は、骨内成長または骨上成長を促すために多孔質であり或いは粗面化されており、前記第2の層の第2の先端部は、前記第1の基端部に対して孔が少なく、殆ど孔が無く或いは殆ど粗面化されておらず或いは滑らかである、人工インプラント。
- 第1および第2の層は、その場で取付部に対して付加されている、請求項1に記載の人工インプラント。
- 第1および第2の層は、前記取付部に対して取り付けるための別個のシースとして予め形成されている、請求項1に記載の人工インプラント。
- 金属層は、チタン、チタン合金、または、任意の他の適切に適合する生体適合性金属である、請求項1〜請求項3のいずれか一項に記載の人工インプラント。
- 金属層が予備成形形状の形態を成している、請求項1〜請求項4のいずれか一項に記載の人工インプラント。
- 金属層が金属スパッタリングによって形成されている、請求項1〜請求項4のいずれか一項に記載の人工インプラント。
- 金属層がレーザ溶融プロセスによって形成されている、請求項6に記載の人工インプラント。
- 合成樹脂材料がポリメチルメタクリレートである、請求項1〜請求項7のいずれか一項に記載の人工インプラント。
- 第1および第2の層の先端がカップとして形成され、その内面は、最初に所定位置に配置される際に先端空間を形成すべく取付部の先端から離間され、これにより、取り付け後における第1の層と取付部との間のその後の移動が許容されるようになっている、請求項1〜請求項8のいずれか一項に記載の人工インプラント。
- 2つの層によって形成される壁の厚さが1mm〜3mmである、請求項1〜請求項9のいずれか一項に記載の人工インプラント。
- 2つの層間に形成される壁の厚さが1.8mm〜2.5mmである、請求項10に記載の人工インプラント。
- 金属の第2の層の内面は、合成樹脂の第1の層の外面に対する接着を高めるために、粗面化されている、請求項1〜請求項11のいずれか一項に記載の人工インプラント。
- PMMA骨セメントの付加を伴って接着が行なわれるようになっている、請求項12に記載の人工インプラント。
- ステム部を液体材料槽中に浸漬することにより或いは取付部の外面に対して材料を吹き付けることにより合成樹脂材料からなる第1の層を取り付け、その後、合成樹脂材料層上に金属をバタリングすることにより或いは選択レーザ焼結プロセスを使用することにより金属の第2の層を付加することを含む、請求項1に記載の人工インプラントを形成する方法。
- 別個に形成され且つ先端−基端方向で取付部上にスライドされるシースとして第1および第2の層を設けることを含む、請求項1に記載の人工インプラントを形成する方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0702864.0A GB0702864D0 (en) | 2007-02-14 | 2007-02-14 | Prosthetic implant for use without bone cement |
GB0702864.0 | 2007-02-14 |
Publications (2)
Publication Number | Publication Date |
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JP2008229325A true JP2008229325A (ja) | 2008-10-02 |
JP5466367B2 JP5466367B2 (ja) | 2014-04-09 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2008033195A Expired - Fee Related JP5466367B2 (ja) | 2007-02-14 | 2008-02-14 | 骨セメントを用いることなく使用できる大腿プロテーゼ |
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Country | Link |
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US (1) | US20080195218A1 (ja) |
EP (1) | EP1958595B1 (ja) |
JP (1) | JP5466367B2 (ja) |
AT (1) | ATE456336T1 (ja) |
AU (1) | AU2008200722B2 (ja) |
CA (1) | CA2621528C (ja) |
DE (1) | DE602008000590D1 (ja) |
GB (1) | GB0702864D0 (ja) |
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- 2008-02-07 DE DE602008000590T patent/DE602008000590D1/de active Active
- 2008-02-07 EP EP08250469A patent/EP1958595B1/en not_active Not-in-force
- 2008-02-07 AT AT08250469T patent/ATE456336T1/de not_active IP Right Cessation
- 2008-02-12 CA CA2621528A patent/CA2621528C/en not_active Expired - Fee Related
- 2008-02-14 AU AU2008200722A patent/AU2008200722B2/en not_active Ceased
- 2008-02-14 JP JP2008033195A patent/JP5466367B2/ja not_active Expired - Fee Related
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JP2014176687A (ja) * | 2013-03-14 | 2014-09-25 | Depuy Synthes Products Llc | 埋め込み型股関節プロテーゼ用大腿骨コンポーネント |
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AU2008200722B2 (en) | 2013-06-27 |
AU2008200722A1 (en) | 2008-08-28 |
US20080195218A1 (en) | 2008-08-14 |
CA2621528C (en) | 2015-12-15 |
JP5466367B2 (ja) | 2014-04-09 |
ATE456336T1 (de) | 2010-02-15 |
EP1958595A1 (en) | 2008-08-20 |
EP1958595B1 (en) | 2010-01-27 |
DE602008000590D1 (de) | 2010-03-18 |
GB0702864D0 (en) | 2007-03-28 |
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