JP6657373B2 - 人工関節インプラント - Google Patents
人工関節インプラント Download PDFInfo
- Publication number
- JP6657373B2 JP6657373B2 JP2018505508A JP2018505508A JP6657373B2 JP 6657373 B2 JP6657373 B2 JP 6657373B2 JP 2018505508 A JP2018505508 A JP 2018505508A JP 2018505508 A JP2018505508 A JP 2018505508A JP 6657373 B2 JP6657373 B2 JP 6657373B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- socket
- joint implant
- artificial joint
- ball head
- 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.)
- Active
Links
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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
- A61F2002/30937—Special articulating surfaces with cut-outs
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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
- A61F2/40—Joints for shoulders
- A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
- A61F2002/4018—Heads or epiphyseal parts of humerus
-
- 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
- A61F2/40—Joints for shoulders
- A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
- A61F2002/4018—Heads or epiphyseal parts of humerus
- A61F2002/4022—Heads or epiphyseal parts of humerus having a concave shape, e.g. hemispherical 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
- A61F2/40—Joints for shoulders
- A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
- A61F2002/4029—Necks
-
- 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
- A61F2/40—Joints for shoulders
- A61F2/4081—Glenoid components, e.g. cups
- A61F2002/4085—Glenoid components, e.g. cups having a convex shape, e.g. hemispherical heads
-
- 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
- A61F2/40—Joints for shoulders
- A61F2002/4088—Acromial components
-
- 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
- A61F2/40—Joints for shoulders
- A61F2002/4096—Coracoid process components
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Description
肘関節などの鞍関節の置換のためのアプリケーションにおいては、関節インプラントは、2つの結合された回転軸を提供して、4つの主要な関節接合方向を提供する。蝶番関節のためのアプリケーションにおいては、関節インプラントは、2つの結合された回転軸を提供し、その場合、関節インプラントは、2つの主要な関節接合方向を提供するが、また、動きの不正確さを補償するためのガイドされた遊びの手段を提供する。肩関節および股関節などのソケット関節内のボールの場合は、関節インプラントは、2つの組み合わされた回転軸を提供して、必要とされる6つの関節接合方向のうちの第1の4つの主要な関節接合方向を提供し、第3の回転軸を提供する要素と組み合わされることができて、残る2つの主要な関節接合方向を容易にし、その場合、回転軸は必ずしも交差するとは限らない。
(i)2つの突出部を通過する軸A2を中心として、および
(ii)溝が延在する大円によって定義される平面に対して直角の、および軸A2に対して直角の軸A3を中心として
回転できるようになるが、
軸A2および軸A3の両方に対して直角の軸A1を中心としたソケットの回転を防止する。
Claims (37)
- ソケット(4)を持つ第1の要素(2)およびボールヘッド(5)を持つ第2の要素(3)のみを備える人工関節インプラント(1)にして、前記ボールヘッド(5)が、前記第1の要素(2)と前記第2の要素(3)との間にボールソケット連結を形成するように前記ソケット(4)に挿入可能であり、前記ソケット(4)内の前記ボールヘッド(5)の動きが、溝(7)に係合される突出部(6.1;6.2)によって制限され、それによって、前記突出部(6.1;6.2)が、中心軸A2を有し、前記ソケット(4)の表面から突出し、前記溝(7)が、前記ボールヘッド(5)の表面に設けられ、または逆もまた同様である、人工関節インプラント(1)であって、
a)前記溝(7)が、前記ボールヘッド(5)の、または前記ソケット(4)の大円に沿って配置され、
b)前記突出部(6.1;6.2)が、溝(7)に収容される場合にその中心軸A2を中心として突出部の回転を可能にする形状を有し、
c)突出部(6.1;6.2)の、および/または溝(7)の表面粗さが、最大で25マイクロメートルである
ことを特徴とする、人工関節インプラント(1)。 - ソケット(4)を持つ第1の要素(2)およびボールヘッド(5)を持つ第2の要素(3)を備える人工関節インプラント(1)にして、前記ボールヘッド(5)が、前記第1の要素(2)と前記第2の要素(3)との間にボールソケット連結を形成するように前記ソケット(4)に挿入可能であり、前記ソケット(4)内の前記ボールヘッド(5)の動きが、溝(7)に係合される突出部(6.1;6.2)によって制限され、それによって、前記突出部(6.1;6.2)が、中心軸A2を有し、前記ソケット(4)の表面から突出し、前記溝(7)が、前記ボールヘッド(5)の表面に設けられ、または逆もまた同様である、人工関節インプラント(1)であって、
a)前記溝(7)が、前記ボールヘッド(5)の、または前記ソケット(4)の大円に沿って配置され、
b)前記突出部(6.1;6.2)が、溝(7)に収容される場合にその中心軸A2を中心として突出部の回転を可能にする形状を有し、
c)突出部(6.1;6.2)の、および/または溝(7)の表面粗さが、最大で25マイクロメートルであり、
d)前記第1の要素(2)が、第4の回転軸(A4)を中心としてベース部分(10)に回転可能に連結されるインレー(9)をさらに備え、前記突出部(6.1,6.2)および前記溝(7)が、第4の回転軸(A4)に対して平行な第1の回転軸(A1)を中心とした前記ボールソケット連結の自由度を少なくともブロックするように配置される
ことを特徴とする、人工関節インプラント(1)。 - 表面粗さが、最大で5マイクロメートルであることを特徴とする、請求項1または2に記載の人工関節インプラント(1)。
- 前記突出部(6.1;6.2)が、円筒形、円錐状または球状であることを特徴とする、請求項1から3のいずれか一項に記載の人工関節インプラント(1)。
- 前記突出部(6.1;6.2)が、ソケット(4)またはボールヘッド(5)の中心と交差するように配向される中心軸を有し、軸A2を形成することを特徴とする、請求項1から4のいずれか一項に記載の人工関節インプラント(1)。
- 前記突出部(6.1;6.2)が、ボールヘッド(5)と一体になるか、あるいは、ソケット(4)と一体になる、ことを特徴とする、請求項1から5のいずれか一項に記載の人工関節インプラント(1)。
- 前記突出部(6.1;6.2)が、ボールヘッドの直径の、あるいは、ソケットの直径の、最大40%の高さを有することを特徴とする、請求項1から6のいずれか一項に記載の人工関節インプラント(1)ソケット。
- 前記突出部(6.1;6.2)のベースは、ボールヘッドの直径の、あるいは、ソケットの直径の、75%の直径を有することを特徴とする、請求項1から7のいずれか一項に記載の人工関節インプラント(1)。
- 前記ソケット(4)が、少なくとも半球状であることを特徴とする、請求項1から8のいずれか一項に記載の人工関節インプラント(1)。
- 前記溝(7)が、前記突出部(6.1,6.2)の最大直径に等しいかまたはそれよりも大きい幅を有することを特徴とする、請求項1から9のいずれか一項に記載の人工関節インプラント(1)。
- 溝の幅が、突出部の最大幅の100%と125%との間にあることを特徴とする、請求項10に記載の人工関節インプラント(1)。
- 溝の幅が、突出部の最大幅の100.005%と100.100%との間にあることを特徴とする、請求項11に記載の人工関節インプラント(1)。
- 溝の横断面が、半円またはそれ以下であることを特徴とする、請求項1から12のいずれか一項に記載の人工関節インプラント(1)。
- 溝の底部が、平坦であることを特徴とする、請求項1から13のいずれか一項に記載の人工関節インプラント(1)。
- 前記溝(7)が、前記ソケット(4)の表面に設けられ、前記溝(7)が、前記ソケット(4)の円周方向縁部と頂点との間の距離の一部のみに及ぶことを特徴とする、請求項1から14のいずれかに記載の人工関節インプラント(1)。
- 前記ボールヘッド(5)が、ドームまたは球状セグメントの形をとっていることを特徴とする、請求項1から15のいずれかに記載の人工関節インプラント(1)。
- 前記溝(7)が、前記ボールヘッド(5)に設けられ、前記溝(7)が、前記ドームの円周方向縁部と頂点との間の距離の一部のみに、または前記球状セグメントの2つの円周方向縁部の間の一部のみに及ぶことを特徴とする、請求項16に記載の人工関節インプラント(1)。
- 互いに直径方向に配置される2つの突出部(6.1;6.2)が設けられ、ボールヘッドが2つの突出部を溝に配置してソケットに挿入されるとボールヘッドが2つの異なる軸を中心として、すなわち、
(i)2つの突出部を通過する軸A2を中心として、および
(ii)溝が延在する大円によって定義される平面に対して直角の、および軸A2に対して直角の軸A3を中心として
回転できるようになるが、
軸A2および軸A3の両方に対して直角の軸A1を中心としたソケットの回転を防止する
ことを特徴とする、請求項1から17のいずれか一項に記載の人工関節インプラント(1)。 - 2つの突出部(6.1;6.2)が、異なる形状を有することを特徴とする、請求項1から18のいずれか一項に記載の人工関節インプラント(1)。
- 溝(7)の深さが、突出部(6.1;6.2)の高さの最大で400%であることを特徴とする、請求項1から19のいずれか一項に記載の人工関節インプラント(1)。
- 溝の長さが、溝(7)の深さの少なくとも200%であることを特徴とする、請求項1から20のいずれか一項に記載の人工関節インプラント(1)。
- 架空の半球状表面上で測定された溝(7)の領域AGとソケットの全領域Asとの間の関係AG/ASが、1:40と1:10の範囲であることを特徴とする、請求項1から21のいずれか一項に記載の人工関節インプラント(1)。
- 架空の半球状表面のそのベースで測定された突出部のベース領域ABとソケットの全領域Asとの間の関係AB/ASが、最大で1:55、最大で20:1であることを特徴とする、請求項1から22のいずれか一項に記載の人工関節インプラント(1)。
- AB/ASの関係が、1:17と1:11.5の範囲であることを特徴とする、請求項23に記載の人工関節インプラント(1)。
- 溝によって画定される平面が、ソケットの中心をインレー(9)の中心と結ぶ仮想線に対して直角または平行であることを特徴とする、請求項2に記載の人工関節インプラント(1)。
- 第1の回転軸(A1)と第4の回転軸(A4)との間の距離が、3mmから20mm、の範囲であることを特徴とする、請求項2または25に記載の人工関節インプラント(1)。
- ボールヘッド(5)が、対称面(21)を持つプロテーゼステム(12;17)に取り付けられまたは結合可能であることを特徴とする、請求項1から26のいずれか一項に記載の人工関節インプラント(1)。
- 肩関節内プロテーゼとして設計され、溝が、少なくとも150°の長さを有することを特徴とする、請求項1から27のいずれか一項に記載の人工関節インプラント(1)。
- 関節が、20°の内転、80°の外転、75°の内旋および外旋、ならびに360°の前傾および後傾を可能にすることを特徴とする、請求項28に記載の人工関節インプラント(1)。
- 足関節プロテーゼとして設計され、溝が、少なくとも5°の角度範囲で延びていることを特徴とする、請求項1から27のいずれか一項に記載の人工関節インプラント(1)。
- 手首プロテーゼとして設計されることを特徴とする、請求項1から27のいずれか一項に記載の人工関節インプラント(1)。
- 脊椎円板プロテーゼとして設計されることを特徴とする、請求項1から27のいずれか一項に記載の人工関節インプラント(1)。
- ボールヘッドおよび突出部が、一体のモノリスコンポーネントであることを特徴とする、請求項1から32のいずれか一項に記載の人工関節インプラント(1)。
- 突出部(6.1;6.2)が、ボールヘッドに対して固定位置を有することを特徴とする、請求項1から33のいずれか一項に記載の人工関節インプラント(1)。
- 溝(7)によって画定される平面が、プロテーゼステム(12;17)の中心軸(22)を通り抜ける対称面(21)に対して平行または垂直であることを特徴とする、請求項27に記載の人工関節インプラント(1)。
- ボールヘッドおよび突出部が、一体式のボールヘッドを得るように固体から旋削されることを特徴とする、請求項1から35のいずれか一項に記載の人工関節の製造方法。
- 失敗した逆型肩関節プロテーゼの治療のための、請求項1から29または33から36のいずれか一項に記載の人工関節インプラント(1)。
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WO2010121250A1 (en) | 2009-04-17 | 2010-10-21 | Arthrosurface Incorporated | Glenoid resurfacing system and method |
WO2011005186A1 (en) * | 2009-07-10 | 2011-01-13 | Milux Holding S.A. | Hip joint device |
FR3010628B1 (fr) | 2013-09-18 | 2015-10-16 | Medicrea International | Procede permettant de realiser la courbure ideale d'une tige d'un materiel d'osteosynthese vertebrale destinee a etayer la colonne vertebrale d'un patient |
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