JP5640282B2 - 凹部・傾斜面付き人工膝関節 - Google Patents
凹部・傾斜面付き人工膝関節 Download PDFInfo
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- JP5640282B2 JP5640282B2 JP2011514891A JP2011514891A JP5640282B2 JP 5640282 B2 JP5640282 B2 JP 5640282B2 JP 2011514891 A JP2011514891 A JP 2011514891A JP 2011514891 A JP2011514891 A JP 2011514891A JP 5640282 B2 JP5640282 B2 JP 5640282B2
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- medial
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- femoral
- condylar
- concave surface
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- 210000000629 knee joint Anatomy 0.000 title claims description 7
- 210000003127 knee Anatomy 0.000 claims description 31
- 238000005452 bending Methods 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 2
- 210000000689 upper leg Anatomy 0.000 description 28
- 210000002303 tibia Anatomy 0.000 description 26
- 210000003041 ligament Anatomy 0.000 description 10
- 239000002131 composite material Substances 0.000 description 7
- 210000003484 anatomy Anatomy 0.000 description 6
- 210000002967 posterior cruciate ligament Anatomy 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 210000004417 patella Anatomy 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013150 knee replacement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 102100024452 DNA-directed RNA polymerase III subunit RPC1 Human genes 0.000 description 1
- 101000689002 Homo sapiens DNA-directed RNA polymerase III subunit RPC1 Proteins 0.000 description 1
- 241001227561 Valgus Species 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 210000004439 collateral ligament Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000004353 tibial menisci Anatomy 0.000 description 1
Images
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
- A61F2/38—Joints for elbows or knees
- A61F2/3886—Joints for elbows or knees for stabilising knees against anterior or lateral dislocations
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
Claims (8)
- 矢状面に突出する第1の弧を画定する外側凹み面と、外旋軸を有し前記外側凹み面に対して前方に隆起し前記矢状面に突出する第2の弧を画定する内側凹み面とを備え、前記第1の弧は前記第2の弧より大きな半径を有し、前記外側凹み面および前記内側凹み面の後方部分が各々前部にある面に突出する一定半径の単一の弧で画定され、さらに前記外側凹み面および前記内側凹み面の間に位置する突起を備え、前記突起の前方部分が前方傾斜面を画定し、前記突起の後方部分が後方傾斜面を画定し、
前記一定半径の単一の弧は、前記突起の輪郭を示す弧と連続しており、前記一定半径の単一の弧の弧長は、前記突起の中心高さが低い部分で、前記突起の中心高さが高い部分に比較して低減している、単体の頚骨コンポーネントと、
非対称の外側顆状面および内側顆状面と、内側大腿骨溝と、前記外側顆状面および前記内側顆状面との間に位置する円蓋部とを備え、前記円蓋部が前記内側大腿骨溝の続きである単体の大腿骨コンポーネントとを具備し、
指定された範囲内の屈曲角度に対し、前記円蓋部の表面が、前記後方傾斜面と接触しかつ適合し、
前記後方傾斜面および前記円蓋部の表面が、屈曲に合わせて、前記外旋軸に対して、前記外側顆状面が後方に変位する際に接触を維持するように構成されるものであって、
前記外側顆状面は前記外側凹み面とすべり接触し、屈曲が増加するにつれて前記外側凹み面に対して後方に第1の距離を変位するように動作する構成であり、
前記内側顆状面は前記内側凹み面とすべり接触し、屈曲が増加するにつれて前記内側凹み面に対して前記第1の距離より小さい第2の距離を変位するように動作する構成であり、
前記外側顆状面と前記内側顆状面との変位により、前記頚骨コンポーネントに対して前記外旋軸を中心にして前記大腿骨コンポーネントの回転が為されることを特徴とする人工膝関節。 - 前記内側凹み面に接触する前記内側顆状面の一部が、0度屈曲時において適合することを特徴とする請求項1に記載の人工膝関節。
- 前記外側凹み面に接触する前記外側顆状面の一部が、0度屈曲時において前方に適合し後方に適合しないことを特徴とする請求項1に記載の人工膝関節。
- 前記内側顆状面および前記外側顆状面が、接続された一連の実質的に円形の弧からなる弓状の矢状面輪郭を有することを特徴とする請求項1に記載の人工膝関節。
- 前記接続された一連の実質的に円形の弧が、直前の弧に対して各々の半径が低減することを特徴とする請求項4に記載の人工膝関節。
- 前記円蓋部の表面および前記傾斜面の表面が数学的に連続し、不連続な導関数を有することを特徴とする請求項1に記載の人工膝関節。
- 前記円蓋部の表面が、半径が3ミリメートルを上回る丸みのある縁を備えた隣接する表面に遷移することを特徴とする請求項1に記載の人工膝関節。
- 前記内側凹み面、前記外側凹み面および前記傾斜面が、関節屈曲に対応する所望の運動軌跡に沿って、前記大腿骨コンポーネントの連続した増分配置からもたらされる遠位大腿骨サーフェイスの最大値の包絡面と適合する面として定義されることを特徴とする請求項1に記載の人工膝関節。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7515808P | 2008-06-24 | 2008-06-24 | |
US61/075,158 | 2008-06-24 | ||
US10048808P | 2008-09-26 | 2008-09-26 | |
US61/100,488 | 2008-09-26 | ||
PCT/US2009/048170 WO2010008803A2 (en) | 2008-06-24 | 2009-06-22 | Recess-ramp knee joint prosthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011525387A JP2011525387A (ja) | 2011-09-22 |
JP5640282B2 true JP5640282B2 (ja) | 2014-12-17 |
Family
ID=41432026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011514891A Active JP5640282B2 (ja) | 2008-06-24 | 2009-06-22 | 凹部・傾斜面付き人工膝関節 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8298288B2 (ja) |
EP (1) | EP2323594B1 (ja) |
JP (1) | JP5640282B2 (ja) |
CN (1) | CN102076283B (ja) |
AU (1) | AU2009271389B2 (ja) |
CA (1) | CA2728888C (ja) |
WO (1) | WO2010008803A2 (ja) |
Families Citing this family (68)
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-
2009
- 2009-06-22 US US12/489,288 patent/US8298288B2/en not_active Expired - Fee Related
- 2009-06-22 JP JP2011514891A patent/JP5640282B2/ja active Active
- 2009-06-22 AU AU2009271389A patent/AU2009271389B2/en not_active Ceased
- 2009-06-22 CN CN200980124256.0A patent/CN102076283B/zh not_active Expired - Fee Related
- 2009-06-22 EP EP09798469.4A patent/EP2323594B1/en not_active Not-in-force
- 2009-06-22 WO PCT/US2009/048170 patent/WO2010008803A2/en active Application Filing
- 2009-06-22 CA CA2728888A patent/CA2728888C/en not_active Expired - Fee Related
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WO2010008803A2 (en) | 2010-01-21 |
US8298288B2 (en) | 2012-10-30 |
CA2728888C (en) | 2014-09-09 |
JP2011525387A (ja) | 2011-09-22 |
EP2323594A4 (en) | 2013-08-21 |
EP2323594B1 (en) | 2016-04-06 |
EP2323594A2 (en) | 2011-05-25 |
CA2728888A1 (en) | 2010-01-21 |
AU2009271389A1 (en) | 2010-01-21 |
CN102076283A (zh) | 2011-05-25 |
CN102076283B (zh) | 2014-03-26 |
US20090319047A1 (en) | 2009-12-24 |
WO2010008803A3 (en) | 2010-04-29 |
AU2009271389B2 (en) | 2013-01-31 |
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