JP4357300B2 - 接続可能な椎体間インプラント - Google Patents
接続可能な椎体間インプラント Download PDFInfo
- Publication number
- JP4357300B2 JP4357300B2 JP2003570740A JP2003570740A JP4357300B2 JP 4357300 B2 JP4357300 B2 JP 4357300B2 JP 2003570740 A JP2003570740 A JP 2003570740A JP 2003570740 A JP2003570740 A JP 2003570740A JP 4357300 B2 JP4357300 B2 JP 4357300B2
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- JP
- Japan
- Prior art keywords
- implant
- tube
- interbody
- implants
- male
- 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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- 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
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- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
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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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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- 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
- A61F2002/4687—Mechanical guides for implantation instruments
-
- 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
- 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
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-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
- 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
- A61F2230/0041—J-shaped
Landscapes
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- Orthopedic Medicine & Surgery (AREA)
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- Neurology (AREA)
- Veterinary Medicine (AREA)
- Transplantation (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Cardiology (AREA)
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Description
− 所与の直径「D1」を有する第1の実質的に円筒形の部分と、
− 「D1」より大きい直径「D2」を有する第2の実質的に円筒形の部分と、
− 最初の直径は「D2」と等しく、前面からの距離が増すにつれて直径が小さくなる実質的に円錐台形の部分と、
を連続して含んでいる突起部を備えることができる。
− 前記ロッドを挿入して止めることのできる2つの管、
− 第1管の前端を第2管の後端に接続する第1横断ロッドと、第2管の前端を第1管の後端に接続する第2横断ロッドであって、前記両横断ロッドは、関節の領域で交差し、前記両管を含む面に垂直な共通のヒンジピンの回りに回転できるように構成されている両横断ロッド、
− 前記第1横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、第1管の前部端に向かって配置され、並進運動時には固定的に保持されるヒンジピンの回りに関節接合するための手段と、前記第1横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、第2管の後部端に向かって配置され、並進運動時には第2管に沿って伸張する受入シート内で移動できるようになっているヒンジピンの回りに関節接合するための手段、
− 前記第2横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、第2管の前部端に向かって配置され、並進運動時には固定的に保持されるヒンジピンの回りに関節接合するための手段と、前記第2横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、第1管の後部端に向かって配置され、並進運動時には第1管に沿って伸張する受入シート内で移動できるようになっているヒンジピンの回りに関節接合するための手段、及び
− 制御された方法で前記両管を互いに向かって動かすための手段、
を備えている。
− インプラントの中央部分を取り付けるための手段を一方の端部に備えているロッド、及び
− 一方の端部に、インプラントの側方部分の1つをそこに維持できる手段を備えているシースと、前記シースの内側に配置され、ねじと協働することのできる窪みが設けられているねじ回しとにより形成された2つの工具と、
を備えている。
− インプラントの2つの側方部分の内の第1の部分を装着する間、ロッドと工具を所定の各角度位置に維持することのできる横断部片、
− インプラントの側方部分の内の第2の部分を装着する間、2つの工具を所定の各角度位置に維持することのできる横断部片、
を備えていることが望ましい。
− 一端が、導入の間に受入シートの入口に留まるようになっており、受入シートの高さと実質的に等価な幅「l」を有し、椎骨の外側表面に当接するようになっているストッパが装着されている保護ガイドである第1部分と、
− ロッドの端部に配置されているディストラクタ要素である第2部分と、
− 第2部分のロッドを挿入することのできる管状要素である第3部分と、
− 前記保護ガイドの端部及び前記ディストラクタ要素を受入シート内へと挿入できる配置に前記3つの部分を組み立てることができ、前記保護ガイドの端部だけが受入シート内に残るように前記3つの部分を分解することができるようにする手段と、
を備えている。
− 保護ガイドの端部の両側辺に形成されている突起部と、
− 保護ガイドの前記突起部を挿入するために、ディストラクタ要素の上側及び下側面に形成されている受入シートと、
− 管状要素の前方面に形成されている少なくとも1つのスタッドと、ディストラクタ要素の後方面に形成されている少なくとも1つの対応するノッチと、
− 第2部分のロッドに形成されているオリフィスと、第3部分の管状要素に形成されているタップ穴と、第2及び第3部分を互いに対して止めると同時に、保護ガイドの前記突起部をディストラクタ要素に設けられている前記受入シート内に止めるように、前記タップ穴と前記オリフィスの中へ挿入することのできるねじ付き要素と、
を備えている。
この他の目的、実施形態、形状、態様、特徴、恩恵及び/又は利点は、以下の説明及び添付図面から明らかとなるであろう。
−所与の直径「D1」を有する第1の実質的に円筒形の部分14と、
−「D1」より大きい直径「D2」を有する第2の実質的に円筒形の部分15と、
−最初の直径が「D2」に等しく、接続面12からの距離が増すにつれて直径が減少する実質的に円錐台形の部分16と、
を備えている。
− 一方の端部に、インプラントの側方部分111、112の内の1つを維持することができ、例えば、側方部分111、112それぞれの前方面128に形成されている2つの対応するノッチ126、127と協働する2つのスタッド又はタブ125を備えている手段が設けられているシース124と、
− 上記シース124の内側を貫通して伸張しているねじ回し129であって、一端には、ねじ117と係合する窪み又は頭部130が設けられ、他端には、外科医がねじ回し129を回転させるグリップハンドル131が設けられているねじ回し129と、
の2つの主要部分で作られている。
− 各操作時、比較的小型の構成要素だけが患者の体内に挿入され、これは、侵襲性が少なく、椎骨の関節面のような安定要素を沢山取り除く必要がなく、筋肉を切断せずに済ますことができ、代わりに横へずらすだけで済むので、従って回復が早いという利点と、
− 接続操作を、椎間板内に形成された空洞の開口部に近接して、つまり、外科医に見える範囲で行うので、インプラントを装着し易くなり、更に、ねじで接続できるようになるので、しっかりとした、信頼性のある、しかも比較的容易な接続を行えるという利点がある。
Claims (20)
- 椎骨間の癒合を実現するために、骨移植材を、椎間板内に形成されている受入シート内の適所に挿入し維持するための体間インプラントであって、2つの連続する部分を装着部位で接続するための手段が設けられている、それぞれがケージの形状を有する複数の部分から構成されており、全体としては馬蹄型又はU字型であることを特徴とする体間インプラント。
- 請求項1に記載の体間インプラントであって、脊椎の後前方向に向けられるようになっている第1部分と、前記第1部分に対し実質的に垂直に向けられる第2部分とを備えており、前記両部分は、移行部分によって接続されており、前記インプラントの前記第2部分の前面は、突起部か、又は前記突起部を挿入して保持するための受入部の何れかを備えており、突起部の場合はそのインプラントを雄型インプラントとし、受入部の場合はそのインプラントを雌型インプラントとし、前記突起部と前記受入部によって、前記雄型インプラントと前記雌型インプラントの間の接続を実現し、維持するように構成されていることを特徴とする、体間インプラント。
- 請求項2に記載の雄型体間インプラントであって、前記第2部分の前面に、前記前面から始まる突起部であって、所与の直径「D1」を有する第1の実質的に円筒形の部分と、「D1」より大きい直径「D2」を有する第2の実質的に円筒形の部分と、最初の直径は「D2」と等しく、前記前面からの距離が増すにつれて直径が小さくなる実質的に円錐台形の部分と、を連続して備えている突起部を備えていることを特徴とする、雄型体間インプラント。
- 請求項2に記載の雌型体間インプラントであって、前記第2部分の前面に、張出部で終結する弾性舌状部によって外側境界が画定されている受入部を備えていることを特徴とする、雌型体間インプラント。
- 請求項3に記載の雄型体間インプラントと請求項4に記載の雌型体間インプラントとにより形成されるユニットであって、前記2つのインプラントの接続を実現し維持するために、前記雌型インプラントの舌状部及びその張出部の形状及び寸法が、前記雄型インプラントの突起部と協働できるようになっている、ユニット。
- 請求項2に記載の雄型体間インプラントであって、前記第2部分の前面に、全体的外側形状が円筒形部分の形状であり、その断面が、2つの受入シートを前記前面との接続区域の領域内に画定するように180°を超える角度に亘って伸張する外周を有する突起部を備えていることを特徴とする、雄型体間インプラント。
- 請求項2に記載の雌型体間インプラントであって、前記第2部分の前面に、間に受入部を画定する2つの弾性タブを備えていることを特徴とする、雌型体間インプラント。
- 請求項6に記載の雄型体間インプラントと、請求項7による雌型体間インプラントとにより形成されるユニットであって、前記2つのインプラントの接続を実現し維持するために、前記雌型インプラントの前記弾性タブの形状及び寸法が、前記雄型インプラントの前記突起部を前記受入部に挿入し、前記弾性タブの両端部を前記受入シート内に挿入できるようになっていることを特徴とする、ユニット。
- 請求項2に記載の雄型体間インプラントと雌型体間インプラントを装着部位で接続するための器具であって、2つのロッドを備えており、前記2つのロッドには、それぞれ、インプラントの第1部分の前面に取り付けるための手段と、平行な位置関係に保持しながら前記ロッドを互いに向かって動かすための手段とが備えられていることを特徴とする、器具。
- 請求項9に記載の器具であって、前記ロッドを互いに向かって動かすための手段が、
前記ロッドを挿入して止めることのできる2つの管、
第1管の前端を第2管の後端に接続する第1横断ロッド及び前記第2管の前端を前記第1管の後端に接続する第2横断ロッドであって、前記両横断ロッドは、関節の領域で交差し、前記両管を含む面に垂直な共通のヒンジピンの回りに回転できるように構成されている両横断ロッド、
前記第1横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、前記第1管の前部端に向かって配置され、並進運動時には固定的に保持されるヒンジピンの回りに関節接合するための手段と、前記第1横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、前記第2管の後部端に向かって配置され、並進運動時には前記第2管に沿って伸張する受入シート内で移動できるようになっているヒンジピンの回りに関節接合するための手段、
前記第2横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、前記第2管の前部端に向かって配置され、並進運動時には固定的に保持されるヒンジピンの回りに関節接合するための手段と、前記第2横断ロッドを、前記両管を含む面に垂直なヒンジピンであって、前記第1管の後部端に向かって配置され、並進運動時には前記第1管に沿って伸張する受入シート内で移動できるようになっているヒンジピンの回りに関節接合するための手段、及び
制御された方法で前記両管を互いに向かって動かすための手段、
を備えていることを特徴とする、請求項9に記載の器具。 - 請求項10に記載の器具であって、前記両管を互いに向かって動かすための手段は、前記両管を含み且つ前記第1管付近で前記第2横断ロッドを通過する面に垂直なヒンジピン回りに回転するように関節接合された受入部と、一端が前記受入部内に挿入され、他端が前記ロッドのねじと対応するねじが設けられた管の内側空間に挿入される雄ねじ付きロッドと、前記ロッドの前記管内への挿入深さを調整するために外科医が前記管を回すことができるようにする手段と、前記ロッドが横切っており、前記両管を含み且つ前記第2管付近で前記第1横断ロッドを通過する面に垂直なヒンジピン回りに回転するように関節接合された受入シートと、を備えていることを特徴とする、器具。
- 請求項11に記載の器具であって、前記ねじ付きロッドの回りに、前記受入部及び前記受入シートに当接するばねを備えていることを特徴とする、器具。
- 請求項1に記載の体間インプラントであって、中央部分と、接続手段によって前記中央部分に接続することのできる2つの側方部分とを備えていることを特徴とする、体間インプラント。
- 前記接続手段は、前記中央部分の端面に形成されたタップ穴と、前記タップ穴内に挿入することができ、その頭部が、前記側方部分に形成されている支持面に当接するようになっているねじと、を備えていることを特徴とする、請求項13に記載の体間インプラント。
- 請求項14に記載のインプラントを装着するための器具セットにおいて、
前記インプラントの前記中央部分を取り付けるための手段を一方の端部に備えているロッドと、
一方の端部に、前記インプラントの側方部分の1つをそこに維持できる手段を備えているシースと、前記シースの内側に配置され、前記ねじと協働することのできる窪みが設けられているねじ回しとにより形成された2つの工具と、
を備えていることを特徴とする、器具セット。 - 請求項15に記載の器具セットであって、前記インプラントの2つの側方部分の内の第1の部分を装着する間、前記ロッドと前記工具を所定の各角度位置に維持することのできる横断部片を更に備えていることを特徴とする、器具セット。
- 請求項15又は16に記載の器具セットであって、前記インプラントの側方部分の内の第2の部分を装着する間、前記2つの工具を所定の各角度位置に維持することのできる横断部片を更に備えていることを特徴とする、器具セット。
- 請求項1に記載の体間インプラントであって、
自身から伸張している係合突起部を有する雄型インプラントと、
ソケットを画定している雌型インプラントと、
を備えており、
前記雄型インプラントの前記突起部は、前記雌型インプラントの前記ソケット内に係合される、体間インプラント。 - 請求項18に記載の体間インプラントであって、前記ソケットは、複数の弾性舌状部によって画定される、体間インプラント。
- 請求項18に記載のインプラントであって、前記突起部は円筒形であり、前記ソケットは円筒形である、体間インプラント。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0202428A FR2836373B1 (fr) | 2002-02-26 | 2002-02-26 | Implants intersomatiques connectables pour l'insertion d'un greffon osseux pour la realisation d'une fusion intervertebrale, instruments pour la connexion de ces implants |
PCT/IB2003/000713 WO2003071992A2 (en) | 2002-02-26 | 2003-02-25 | Connectable interbody implant |
Publications (2)
Publication Number | Publication Date |
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JP2006500078A JP2006500078A (ja) | 2006-01-05 |
JP4357300B2 true JP4357300B2 (ja) | 2009-11-04 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2003570740A Expired - Fee Related JP4357300B2 (ja) | 2002-02-26 | 2003-02-25 | 接続可能な椎体間インプラント |
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US (2) | US8002833B2 (ja) |
EP (1) | EP1478309B1 (ja) |
JP (1) | JP4357300B2 (ja) |
AT (1) | ATE553724T1 (ja) |
AU (1) | AU2003207382B2 (ja) |
CA (1) | CA2476991A1 (ja) |
FR (1) | FR2836373B1 (ja) |
WO (1) | WO2003071992A2 (ja) |
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CA2476991A1 (en) | 2003-09-04 |
AU2003207382B2 (en) | 2009-01-29 |
EP1478309A2 (en) | 2004-11-24 |
FR2836373B1 (fr) | 2005-03-25 |
WO2003071992A3 (en) | 2003-12-31 |
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