JP2005312973A - 蝶番式人工膝関節 - Google Patents
蝶番式人工膝関節 Download PDFInfo
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- JP2005312973A JP2005312973A JP2005130438A JP2005130438A JP2005312973A JP 2005312973 A JP2005312973 A JP 2005312973A JP 2005130438 A JP2005130438 A JP 2005130438A JP 2005130438 A JP2005130438 A JP 2005130438A JP 2005312973 A JP2005312973 A JP 2005312973A
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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
- A61F2/3836—Special connection between upper and lower leg, e.g. constrained
- A61F2/384—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement
- A61F2/385—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement also provided with condylar bearing 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
- A61F2/38—Joints for elbows or knees
- A61F2/3877—Patellae or trochleae
-
- 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
- A61F2002/30316—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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30505—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism spring biased
-
- 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
-
- 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
-
- 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
- A61F2310/00856—Coating or prosthesis-covering structure made of compounds based on metal nitrides
- A61F2310/0088—Coating made of titanium nitride
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)
Abstract
【解決手段】膝骨に取り付けられる膝骨部材500と、膝骨部材500に支持される支承部材400と、支承部材400に取り付けられる蝶番キャリッジと、大腿骨600に取り付けられる大腿骨部材200とを備え、大腿骨部材200は、大腿関節接合面とは別個になった大腿脛骨関節接合面を持ち、大腿脛骨関節は仮想的に全ての屈曲角において完全合致する。支承部材400は膝骨部材500に対する最小限の軸回動を可能にし転位を抑制する。
【選択図】図1
Description
200 大腿骨部材
203 大腿脛骨関節接合面
207 膝蓋大腿関節接合面
300 蝶番サブアセンブリ
310 蝶番キャリッジ
320 ピン
330 位置決めネジ
400 支承部材
500 脛骨部材
600 大腿骨
700 脛骨
800 膝蓋骨部材
900 膝蓋骨
Claims (16)
- 蝶番式人工膝関節であって、
脛骨に取り付けられる下方面及び上方支承面を有する脛骨部材と、
脛骨部材に支持される下方支承面及び上方顆支承面を有する支承部材と、
支承部材に取り付けられるシャフト及びヘッドを有する蝶番キャリッジと、
大腿骨に取り付けられる上方面を有するとともに、前記顆支承面に対応して形成され、合致した大腿脛骨関節接合を達成する大腿脛骨関節接合面を下方に有する大腿骨部材とを備え、
前記大腿骨部材は、前記大腿脛骨関節接合面と別個に、小から中の屈曲角度で膝蓋を傾動させる膝蓋大腿関節接合面をさらに有することを特徴とする蝶番式人工膝関節。 - 請求項1の蝶番式人工膝関節であって、前記大腿骨部材の前記大腿脛骨関節接合面は、完全伸展から少なくとも90度の屈曲までの範囲で、合致した大腿脛骨関節接合を達成するように、前記支承部材の顆支承面に対応して形成されていることを特徴とする蝶番式人工膝関節。
- 請求項3の蝶番式人工膝関節であって、大腿脛骨関節接合は、およそ150度の屈曲まで完全合致することを特徴とする蝶番式人工膝関節。
- 請求項1の蝶番式人工膝関節であって、前記膝蓋大腿関節接合面は、上方領域と下方領域を有し、大きな屈曲角で膝蓋の実質的な中心配置を維持しながら、小さな屈曲角で膝蓋の正中線移動をさせるように、前記膝蓋大腿関節接合面の前記上方領域は前記下方領域より幅が広くされていることを特徴とする蝶番式人工膝関節。
- 請求項4の蝶番式人工膝関節であって、前記大腿骨部材と前記支承部材に、係合によって人工膝関節の過伸展を制限する制限面をさらに有することを特徴とする蝶番式人工膝関節。
- 請求項5の蝶番式人工膝関節であって、前記制限面は過伸展を、完全伸展の約5度超に制限するように配置されていることを特徴とする蝶番式人工膝関節。
- 請求項1の蝶番式人工膝関節であって、前記脛骨部材は、上方面に及ぶ円錐孔を有し、前記支承部材は、前記脛骨部材の前記円錐孔に枢動可能に係合する円錐部を有し、前記円錐部は前記円錐孔の中心軸を中心に回動することを特徴とする蝶番式人工膝関節。
- 請求項7の蝶番式人工膝関節であって、前記支承部材の前記円錐部と前記脛骨部材の前記円錐孔の間に設けられ、人工膝関節の軸方向の分離を防いで人工膝関節が転位しないようにする係合手段をさらに有することを特徴とする蝶番式人工膝関節。
- 請求項8の蝶番式人工膝関節であって、前記係合手段は、前記脛骨部材の前記円錐孔に形成された環状溝と、前記支承部材の円錐部に形成された突起を有することを特徴とする蝶番式人工膝関節。
- 請求項9の蝶番式人工膝関節であって、前記支承部材の前記円錐部は環状溝を有し、前記突起は前記支承部材の前記円錐部の前記環状溝と前記脛骨部材の前記円錐孔に係合するスナップリングであることを特徴とする蝶番式人工膝関節。
- 請求項1の蝶番式人工膝関節であって、前記大腿骨部材は、前記キャリッジのヘッド部の相対向する各側部に間隔をおいて設けられ、外反・内反モーメントを抑える2つの蝶番支持壁を有することを特徴とする蝶番式人工膝関節。
- 請求項11の蝶番式人工膝関節であって、前記大腿骨部材の蝶番支持壁と前記キャリッジのヘッド部には、貫通孔が形成され、前記貫通孔を貫通した蝶番ピンは蝶番関節接合の軸となることを特徴とする蝶番式人工膝関節。
- 蝶番式人工膝関節であって、
上方支承面と前記上方支承面に及ぶ円錐孔を有する脛骨部材と、
前記脛骨部材の前記上方支承面に支持される下方支承面及び上方に顆支承面を有するとともに、前記下方支承面から伸び前記脛骨部材の前記円錐孔に支持され、前記脛骨部材の前記円錐孔の中心軸を中心に回動する円錐部、及び前記顆支承面から前記円錐部に伸びた孔を有する支承部材と、
前記支承部材の前記孔に係合するシャフトと前記支承部材の上方に配置されたヘッド部を有し、前記支承部材に対して回動及び軸移動可能なキャリッジと、
前記キャリッジのヘッド部と蝶番係合された大腿骨部材と、
前記支承部材の前記円錐部と前記脛骨部材の前記円錐孔との間に設けられ、両者の分離を防ぐ係合手段を備えていることを特徴とする蝶番式人工膝関節。 - 請求項13の蝶番式人工膝関節であって、前記支承部材と前記脛骨部材の間に設けられ、両者の回動を制限する回動制限手段をさらに備えることを特徴とする蝶番式人工膝関節。
- 請求項14の蝶番式人工膝関節であって、前記回動制限手段は、前記支承部材と前記脛骨部材間の回動を約30度に制限するように構成されていることを特徴とする蝶番式人工膝関節。
- 請求項12による人工膝関節であって、前記脛骨部材は、前記支承部材の前記顆支承面との合致した関節接合を達成するように形成された大腿脛骨関節接合面を有することを特徴とする蝶番式人工膝関節。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56621404P | 2004-04-28 | 2004-04-28 |
Publications (2)
Publication Number | Publication Date |
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JP2005312973A true JP2005312973A (ja) | 2005-11-10 |
JP4681931B2 JP4681931B2 (ja) | 2011-05-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005130438A Expired - Fee Related JP4681931B2 (ja) | 2004-04-28 | 2005-04-27 | 蝶番式人工膝関節 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050246028A1 (ja) |
EP (1) | EP1591083B1 (ja) |
JP (1) | JP4681931B2 (ja) |
AT (1) | ATE372097T1 (ja) |
AU (1) | AU2005201780B8 (ja) |
DE (1) | DE602005002293T2 (ja) |
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US6485519B2 (en) * | 2001-01-29 | 2002-11-26 | Bristol-Myers Squibb Company | Constrained prosthetic knee with rotating bearing |
-
2005
- 2005-04-27 US US11/115,920 patent/US20050246028A1/en not_active Abandoned
- 2005-04-27 JP JP2005130438A patent/JP4681931B2/ja not_active Expired - Fee Related
- 2005-04-28 DE DE602005002293T patent/DE602005002293T2/de active Active
- 2005-04-28 EP EP05009381A patent/EP1591083B1/en not_active Not-in-force
- 2005-04-28 AU AU2005201780A patent/AU2005201780B8/en not_active Ceased
- 2005-04-28 AT AT05009381T patent/ATE372097T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS55500222A (ja) * | 1978-03-10 | 1980-04-17 | Biomedical Eng | |
JPH08224263A (ja) * | 1994-12-12 | 1996-09-03 | Biomedical Eng Trust One | 2つの骨の間の可動結合の適用できる人工器官関節 |
US6010534A (en) * | 1997-09-25 | 2000-01-04 | Johnson & Johnson Professional, Inc. | Rotatable tibial prosthesis with keyed axial securement |
JPH11197167A (ja) * | 1997-11-06 | 1999-07-27 | Mtg Divestitures Inc | 膝インプラントの回転整合装置 |
JP2001252295A (ja) * | 2000-02-24 | 2001-09-18 | Aesculap | 膝義肢大腿骨部及びこれを用いた膝義肢 |
Also Published As
Publication number | Publication date |
---|---|
AU2005201780B2 (en) | 2011-02-17 |
AU2005201780A1 (en) | 2005-11-17 |
JP4681931B2 (ja) | 2011-05-11 |
EP1591083A1 (en) | 2005-11-02 |
AU2005201780B8 (en) | 2011-02-24 |
EP1591083B1 (en) | 2007-09-05 |
DE602005002293D1 (de) | 2007-10-18 |
DE602005002293T2 (de) | 2008-05-29 |
US20050246028A1 (en) | 2005-11-03 |
AU2005201780A8 (en) | 2005-11-17 |
ATE372097T1 (de) | 2007-09-15 |
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