JP4268045B2 - 補綴物 - Google Patents
補綴物 Download PDFInfo
- Publication number
- JP4268045B2 JP4268045B2 JP2003537523A JP2003537523A JP4268045B2 JP 4268045 B2 JP4268045 B2 JP 4268045B2 JP 2003537523 A JP2003537523 A JP 2003537523A JP 2003537523 A JP2003537523 A JP 2003537523A JP 4268045 B2 JP4268045 B2 JP 4268045B2
- Authority
- JP
- Japan
- Prior art keywords
- prosthesis
- bone
- stem
- femur
- collar
- 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.)
- Expired - Fee Related
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Classifications
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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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3601—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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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- A—HUMAN NECESSITIES
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- 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
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
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- A—HUMAN NECESSITIES
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- 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
- A61F2/3662—Femoral shafts
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- A—HUMAN NECESSITIES
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- 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
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
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- 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
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- A61F2/3676—Distal or diaphyseal parts of shafts
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- A—HUMAN NECESSITIES
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- 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
- A61F2/40—Joints for shoulders
- A61F2/4003—Replacing only the epiphyseal or metaphyseal parts of the humerus, i.e. endoprosthesis not comprising an entire humeral shaft
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- A—HUMAN NECESSITIES
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- 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
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
- A61F2002/30118—Rounded shapes, e.g. with rounded corners circular concentric circles
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- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30171—Concave polygonal shapes rosette- or star-shaped
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
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- A—HUMAN NECESSITIES
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- 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
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- A61F2002/30795—Blind bores, e.g. of circular cross-section
- A61F2002/30807—Plurality of blind bores
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- 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
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- A61F2/02—Prostheses implantable into the body
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- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4635—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using minimally invasive surgery
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- 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
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/005—Rosette-shaped, e.g. star-shaped
-
- 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
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni 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
- A61F2310/00005—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
Description
本発明は、大腿骨などの骨に移植される移植可能な補綴物に関する。
本発明のいくつかの目的および特徴は、中でも、骨に対する補綴物の力を伝える係合を促進する補綴物を提供すること、補綴物と骨の間の線接触を阻止する補綴物を提供すること、骨の再吸収を阻止する補綴物を提供すること、移植後の関節の実質的な範囲の動きを可能にする補綴物を提供すること、移植後に長手方向軸に垂直な複数の軸の周りの補綴物の動きを阻止する補綴物を提供することである。
ここで図面、とりわけ図1、図1A、図2および図3を参照すると、本発明に係る骨移植性の、接合剤を用いない補綴物の全体が符号21で図示されている。本発明のこの実施形態において、この補綴物は、大腿骨Fに移植するのに適した寸法と形状を有するが、上腕骨などの他の骨に移植するのに適した寸法と形状を有していてもよい。大腿骨は、大腿骨シャフト部S、大腿骨ヘッド部H、大腿骨ネック部N、転子間線TL、および大腿骨側方のシャフト部の上端部にある大転子Tを有する。大腿骨Fは、骨の表面付近に皮質骨Cの硬い層と、大腿骨内部にある比較的に柔らかい海面質骨SCおよび骨内膜(図示せず)と、を有する。補綴物は、米国材料試験学会(ASTM)規格1537による温間加工されたコバルト−クロム合金、チタニウム、またはその他の材料を用いて形成されている。移植性補綴物21は、移植されると、通常、切除された大腿骨ネック部Nから対角線方向に髄管MCを通って大腿骨の反対側に出る。補綴物は、側方後方向に突出するが、中立転移または反対転移の場合、側方向または側方前方向に延びる。補綴物のいくつかの特徴が骨接ぎ式でない脊髄管補綴物に採用され得ることに留意されたい。この補綴物21は、接合剤を用いて大腿骨Fに接合する必要のないタイプのものであるが、'915特許および以下においてより詳細に説明するように、補綴物と骨の間の機械的な内部接触により固定される。なお、例えば、近位または上部大腿骨ネック部において、補綴物21に対する接合剤の利用を想定されることに留意されたい。補綴物が(長手方向軸の周りの)回転動作、および(長手方向軸と垂直な方向、すなわち前後方向および中央−外側方向の)トグル動作しないように固定される一方、軸方向の微少変位を許容して、骨に対する自然な負荷を実現することにより、骨を守るように、補綴物は構成されている。
Claims (17)
- 骨に移植される補綴物であって、
第1表面と、その通常反対側にあって、骨と係合し、骨に力を伝達する第2表面とを有するカラー部と、
第1表面から外側に延び、ボール部を受容するように構成されたネック部と、
カラー部の第2表面から外側に延び、骨に受容されるステム部と、を備え、
カラー部の第2表面は、少なくとも第2表面の実質的な部分における第2表面と大腿骨の力を伝える係合を促進するための凹部を有し、第2表面での応力集中領域における第2表面と骨の係合を制限し、第2表面と骨の間の線接触を阻止することを特徴とする補綴物。 - 請求項1に記載の補綴物であって、
第2表面は、通常ステム部がカラー部と交差する部位において、第2表面と骨との接触を阻止するように配置されたことを特徴とする補綴物。 - 請求項2に記載の補綴物であって、
凹部は、ステム部に隣接して配置されることを特徴とする補綴物。 - 請求項1に記載の補綴物であって、
凹部は、環状であって、ステム部の周囲に延びることを特徴とする補綴物。 - 請求項1に記載の補綴物であって、
カラー部の水平方向の外側に面した表面は、骨の内部成長を促進するように形成され、骨に移植されたとき補綴物の回転動作を阻止することを特徴とする補綴物。 - 請求項5に記載の補綴物であって、
水平方向の外側に面した表面は、少なくとも1つの平坦部を有することを特徴とする補綴物。 - 請求項6に記載の補綴物であって、
カラー部の水平方向の外側に面した表面は、大腿骨ネック部の水平方向の切除された部分と合致するような部分的円筒形状を有することを特徴とする補綴物。 - 請求項1に記載の補綴物であって、
補綴物は、大腿骨に移植されるように構成され、
ネック部は、大腿骨に移植されたとき、寛骨臼との接触が阻止されるような寸法および形状を有することを特徴とする補綴物。 - 請求項8に記載の補綴物であって、
ネック部は、大腿骨に移植されたとき、寛骨臼との接触を阻止するような凹部を有することを特徴とする補綴物。 - 請求項1に記載の補綴物であって、
補綴物は、大腿骨に移植されるように構成され、
ステム部は、大腿骨に移植されたとき、補綴物の長手方向軸および長手方向軸に垂直な方向の複数の軸の周りの動きを固定し、かつステム部の軸方向の固定を禁止するように、ステム部の上に形成された軸方向に延びるスプラインを有することを特徴とする補綴物。 - 請求項10に記載の補綴物であって、
スプラインは、ステム部の実質的な長さにわたって延びることを特徴とする補綴物。 - 請求項10に記載の補綴物であって、
ステム部は、通常円筒状であって、
ステム部の近位部分は、ステム部の遠位部分より大きい径を有することを特徴とする補綴物。 - 大腿骨に移植される補綴物であって、
第1表面と、その通常反対側にあって、大腿骨と係合し、大腿骨に力を伝達する第2表面とを有するカラー部と、
第1表面から外側に延び、ボール部を受容するように構成されたネック部と、
カラー部の第2表面から外側に延び、大腿骨に受容されるステム部と、を備え、
カラー部の第2表面は、少なくとも第2表面の実質的な部分における第2表面と大腿骨の力を伝える係合を促進し、かつ通常ステム部がカラー部と交差する部位における大腿骨との接触を阻止して骨の再吸収を阻止するように、ステム部に隣接した凹部を有することを特徴とする補綴物。 - 請求項13に記載の補綴物であって、
凹部は、環状であって、ステム部の周囲に延びることを特徴とする補綴物。 - 請求項13に記載の補綴物であって、
カラー部の水平方向の外側に面した表面は、骨の内部成長を促進するための少なくとも1つの窪みを有し、骨に移植されたとき、補綴物の回転動作を阻止することを特徴とする補綴物。 - 請求項15に記載の補綴物であって、
カラー部の水平方向の外側に面した表面は、水平方向の大腿骨ネック部の切除された部分と合致するような部分的円筒形状を有することを特徴とする補綴物。 - 請求項13に記載の補綴物であって、
ネック部は、大腿骨に移植されたとき、寛骨臼との接触が阻止されるような凹部を有することを特徴とする補綴物。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/999,632 US6783553B2 (en) | 2001-10-24 | 2001-10-24 | Prosthesis |
PCT/US2002/032148 WO2003034952A2 (en) | 2001-10-24 | 2002-10-09 | Prosthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005506876A JP2005506876A (ja) | 2005-03-10 |
JP4268045B2 true JP4268045B2 (ja) | 2009-05-27 |
Family
ID=25546556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003537523A Expired - Fee Related JP4268045B2 (ja) | 2001-10-24 | 2002-10-09 | 補綴物 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6783553B2 (ja) |
EP (3) | EP1437987B1 (ja) |
JP (1) | JP4268045B2 (ja) |
AT (1) | ATE324843T1 (ja) |
DE (2) | DE60211194D1 (ja) |
WO (1) | WO2003034952A2 (ja) |
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2001
- 2001-10-24 US US09/999,632 patent/US6783553B2/en not_active Expired - Lifetime
-
2002
- 2002-10-09 DE DE60211194T patent/DE60211194D1/de not_active Expired - Lifetime
- 2002-10-09 AT AT02778474T patent/ATE324843T1/de not_active IP Right Cessation
- 2002-10-09 EP EP02778474A patent/EP1437987B1/en not_active Expired - Lifetime
- 2002-10-09 JP JP2003537523A patent/JP4268045B2/ja not_active Expired - Fee Related
- 2002-10-09 EP EP04016946A patent/EP1472998A3/en not_active Withdrawn
- 2002-10-09 EP EP04016945A patent/EP1472997B1/en not_active Expired - Lifetime
- 2002-10-09 DE DE60211754T patent/DE60211754D1/de not_active Expired - Lifetime
- 2002-10-09 WO PCT/US2002/032148 patent/WO2003034952A2/en active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102264932B (zh) * | 2008-12-26 | 2013-12-04 | 昭和电工株式会社 | R-t-b系稀土类永久磁铁用合金材料、r-t-b系稀土类永久磁铁的制造方法和电动机 |
Also Published As
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EP1472997B1 (en) | 2006-05-24 |
ATE324843T1 (de) | 2006-06-15 |
US20030078670A1 (en) | 2003-04-24 |
WO2003034952A3 (en) | 2003-10-16 |
EP1437987B1 (en) | 2006-05-03 |
EP1437987A2 (en) | 2004-07-21 |
WO2003034952A2 (en) | 2003-05-01 |
EP1472997A2 (en) | 2004-11-03 |
US6783553B2 (en) | 2004-08-31 |
EP1472997A3 (en) | 2004-11-10 |
DE60211194D1 (de) | 2006-06-08 |
EP1472998A3 (en) | 2004-11-10 |
JP2005506876A (ja) | 2005-03-10 |
EP1472998A2 (en) | 2004-11-03 |
DE60211754D1 (de) | 2006-06-29 |
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