JP2005095660A - 脊椎固定装置 - Google Patents
脊椎固定装置 Download PDFInfo
- Publication number
- JP2005095660A JP2005095660A JP2004363286A JP2004363286A JP2005095660A JP 2005095660 A JP2005095660 A JP 2005095660A JP 2004363286 A JP2004363286 A JP 2004363286A JP 2004363286 A JP2004363286 A JP 2004363286A JP 2005095660 A JP2005095660 A JP 2005095660A
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- spinal
- fixation device
- spine
- spinal fixation
- adjacent
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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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- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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- A—HUMAN NECESSITIES
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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
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Abstract
【解決手段】第1の二つの隣接する脊椎の椎体に挿入可能な少なくとも一つの第1の突出部(16)と、第2の二つの隣接する脊椎の椎体に挿入可能な少なくとも一つの第2の突出部(17)と、底面に設けられ第1及び第2の突出部間に配置された組み合わせ手段により脊椎移植部分に組み合わせられる頂部用材(14)と、脊椎移植部分に結合する手段(60)で構成され、二つの隣接する椎体間の椎間円板を横断して少なくとも一部に配置される体内脊椎融合移植部分と組み合わせて用い人間の脊椎の一部を安定化する。
【選択図】 図1
Description
椎間脊髄融合移植部分に脊椎固定装置を固定することで、脊椎固定装置自体が外れる危険性から患者を保護する手段を提供することが、本発明のその他の目的である。
脊柱の前方部周辺のどの箇所にも縦方向に適用可能な脊椎固定装置を提供することが、本発明のその他の目的である。
隣接する二つの椎体間の椎間円板スペースを跨ぐために十分な長さを有するが、二つの隣接する椎体と椎間円板によって規定される脊椎の分節方向の距離以下の長さを有するとともに、前記突出部に係合する手段と隣接する脊椎に衝合する底面を備え、前記底面に設けられ前記第1及び第2の突出部間に配置された組み合わせ手段により脊椎移植部分に組み合わせられる頂部用材と、
前記頂部用材を二つの隣接する椎体間の椎間円板スペース内の少なくとも一部に埋め込み可能な脊椎移植部分に結合する手段とによって構成され、
二つの隣接する椎体間の椎間円板を横断して少なくとも一部に配置される体内脊椎融合移植部分と組み合わせて用いることにより人間の脊椎の一部を安定化するものである。
また二つの隣接する脊椎間に埋め込み可能な脊椎移植部分との組み合わせにおいて、前記突出部のそれぞれは、前記脊椎移植部分に対向する偏心傾斜内面を備え、前記突出部が隣接する脊椎に挿入されるときに、前記偏心傾斜内面が脊椎に隣接する骨を脊椎移植部分に向かって押圧するようにしてもよい。
また前記頂部用材を脊椎移植部分に結合する前記結合する手段は、前記頂部用材を脊椎移植部分にロック可能に固定するロック手段を有していてもよい。
また前記骨融合工程を容易にするための骨融合促進物質を備えてもよい。
これらの、またその他の本発明の目的は、添付した図面とその図面の詳細な説明を見れば明らかになるであろう。
例えば第25図では、2つの曲がった側面124aと124bを有する一般的に長く伸ばされた楕円形の頂部部材114を備えたステープル部材112を持つ、脊椎固定装置110の第一の選択的具体例が示されている。この選択的具体例では、曲がった側面124aと124bは、それぞれが上端125aと125bを有している。なおこれらの上端は、本発明の提示された具体例である脊椎固定装置10についての上記説明のように、それによって滑らかな輪郭面を得られるよう脊椎Vの外側の湾曲に順応させるため丸められている。頂部部材114は、頂部部材114の上面120中に開口部122aと122bを有しており、またステープル部材112の反対側の両端で頂部部材114の下面130から下向きに垂れ下がる2つの突出部116と117を有している。この突出部116と117は、提示された具体例について上に説明した突出部16と同様のものである。
第29図乃至32図では、一般的に正方形の頂部部材514を有するステープル部材512を備えた脊椎固定装置510の第五の選択的具体例が示されている。ステープル部材512は、頂部部材514が第30図に示されているような下面530から垂れ下がった先端がいくつかに別れた突出部分516と517を持っていることを除けば、上に説明したステープル212に構造上類似している。先端がいくつかに別れた突出部分516と517は、上に説明した突出部16や17と同じ機能と類似した構造を有し、また分節され歯止めされた部分34に設計上機能が類似した分節され歯止めされた部分534を含んでいる。この先端がいくつかに別れた突出部516と517は、脊椎Vにステープル部材512のより広い結合領域を提供している脊椎Vの骨の中に一度それが挿入されれば、ステープル部材514の強度と安定性を増大させるという追加的な利点を提供する。
これらの穴を各々の突出部ネジ部材716と717は、それぞれ通過することができる。突出部ネジ部材716と717は、穴728と730を通過し、脊椎Vにかみ合う。穴728と730のそれぞれが、突出部ネジ部材716と717ネジ頭724と726を受け入れ、かつ設置するための同心の座ぐりをした逃げ732と734を有している。それによってネジ頭724と726は、一度脊椎Vに挿入された頂部部材714の上面20と同一平面上に、またはその下にくる。
12 ステープル部材
14 頂部用材
16,17 突出部
40、41 脊髄融合移植部分
D 椎間円板
Claims (9)
- 第1の二つの隣接する脊椎の椎体に挿入可能な少なくとも一つの第1の突出部(16,116,216,316,516,716)と、第2の二つの隣接する脊椎の椎体に挿入可能な少なくとも一つの第2の突出部(17,117,217,317,517,717)と、
隣接する二つの椎体間の椎間円板スペースを跨ぐために十分な長さを有するが、二つの隣接する椎体と椎間円板によって規定される脊椎の分節方向の距離以下の長さを有するとともに、前記突出部に係合する手段と隣接する脊椎に衝合する底面を備え、前記底面に設けられ前記第1及び第2の突出部間に配置された組み合わせ手段により脊椎移植部分に組み合わせられる頂部用材(14,114,214,314,414,514,714)と、
前記頂部用材を二つの隣接する椎体間の椎間円板スペース内の少なくとも一部に埋め込み可能な脊椎移植部分に結合する手段(60)とによって構成され、
二つの隣接する椎体間の椎間円板を横断して少なくとも一部に配置される体内脊椎融合移植部分と組み合わせて用いることにより人間の脊椎の一部を安定化する脊椎固定装置。 - 前記突出部を前記頂部用材に固定可能に取り付けるロック手段を有する請求項1記載の脊椎固定装置。
- 二つの隣接する脊椎間に埋め込み可能な脊椎移植部分(40,41,540)との組み合わせにおいて、前記突出部のそれぞれは、前記脊椎移植部分に対向する偏心傾斜内面(36)を備え、前記突出部が隣接する脊椎に挿入されるときに、前記偏心傾斜内面が脊椎に隣接する骨を脊椎移植部分に向かって押圧する請求項1記載の脊椎固定装置。
- 前記組み合わせ手段は、センター・バーで構成され、該センター・バーは一端にセンター・バーに接合、収容する凹部を有する脊椎移植部分に組み合わせられる請求項1記載の脊椎固定装置。
- 前記頂部用材を脊椎移植部分に結合する前記結合する手段は、前記頂部用材を脊椎移植部分にロック可能に固定するロック手段を有している請求項1記載の脊椎固定装置。
- 前記脊椎移植部分(40,41,540)が上側部分と下側部分とを備え、上側部分と下側部分の各々には、隣接する脊椎の一方から前記脊椎移植部分を介して隣接する脊椎の他方へ骨の成長を可能とする少なくとも一つの開口を有する、請求項1〜5のいずれかに記載の脊椎固定装置。
- 前記上側部分と下側部分の各々に形成される少なくとも一つの開口と連通する中空部を有する、請求項6記載の脊椎固定装置。
- 前記骨融合工程を容易にするための骨融合促進物質を備える請求項1〜7のいずれかに記載の脊椎固定装置。
- 前記骨融合促進物質が、水酸化燐灰石、水酸化燐灰石第三燐酸カルシウム、または骨形態形成蛋白質の少なくとも一つを含む、請求項8記載の脊椎固定装置。
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US5653762A (en) * | 1994-03-18 | 1997-08-05 | Pisharodi; Madhavan | Method of stabilizing adjacent vertebrae with rotating, lockable, middle-expanded intervertebral disk stabilizer |
US5658336A (en) * | 1994-03-18 | 1997-08-19 | Pisharodi; Madhavan | Rotating, locking, middle-expanded intervertebral disk stabilizer |
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1995
- 1995-03-28 EP EP95914197A patent/EP0752830B1/en not_active Expired - Lifetime
- 1995-03-28 CA CA002186749A patent/CA2186749C/en not_active Expired - Fee Related
- 1995-03-28 PT PT95914197T patent/PT752830E/pt unknown
- 1995-03-28 AT AT04025695T patent/ATE461664T1/de not_active IP Right Cessation
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- 1995-03-28 JP JP52524695A patent/JP3882941B2/ja not_active Expired - Lifetime
- 1995-03-28 DE DE69536058T patent/DE69536058D1/de not_active Expired - Lifetime
- 1995-03-28 EP EP01128856A patent/EP1197181B1/en not_active Expired - Lifetime
- 1995-03-28 ES ES95914197T patent/ES2177641T3/es not_active Expired - Lifetime
- 1995-03-28 DK DK95914197T patent/DK0752830T3/da active
- 1995-03-28 AT AT95914197T patent/ATE219342T1/de not_active IP Right Cessation
- 1995-03-28 KR KR1019960705480A patent/KR100411166B1/ko not_active IP Right Cessation
- 1995-03-28 DE DE69533780T patent/DE69533780T2/de not_active Expired - Lifetime
- 1995-03-28 DK DK01128856T patent/DK1197181T3/da active
- 1995-03-28 WO PCT/US1995/003770 patent/WO1995026164A1/en active IP Right Grant
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- 1995-03-28 CN CNB951931318A patent/CN1160023C/zh not_active Expired - Lifetime
- 1995-03-28 DE DE69527139T patent/DE69527139T2/de not_active Expired - Lifetime
- 1995-03-28 EP EP04025695A patent/EP1500372B1/en not_active Expired - Lifetime
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---|---|
ATE461664T1 (de) | 2010-04-15 |
ES2342828T3 (es) | 2010-07-15 |
EP0752830A4 (en) | 1998-12-09 |
DE69533780D1 (de) | 2004-12-23 |
DE69536058D1 (de) | 2010-05-06 |
EP0752830A1 (en) | 1997-01-15 |
ATE282361T1 (de) | 2004-12-15 |
JP4227093B2 (ja) | 2009-02-18 |
CA2186749A1 (en) | 1995-10-05 |
WO1995026164A1 (en) | 1995-10-05 |
EP1197181A1 (en) | 2002-04-17 |
KR100411166B1 (ko) | 2004-04-30 |
ES2231380T3 (es) | 2005-05-16 |
PT752830E (pt) | 2002-10-31 |
PT1197181E (pt) | 2005-02-28 |
CN1160023C (zh) | 2004-08-04 |
DK0752830T3 (da) | 2002-08-19 |
EP1500372A1 (en) | 2005-01-26 |
DK1197181T3 (da) | 2005-03-14 |
AU2129095A (en) | 1995-10-17 |
ES2177641T3 (es) | 2002-12-16 |
DE69527139T2 (de) | 2003-02-20 |
JP3882941B2 (ja) | 2007-02-21 |
EP1500372B1 (en) | 2010-03-24 |
CN1148796A (zh) | 1997-04-30 |
DE69533780T2 (de) | 2005-11-03 |
ATE219342T1 (de) | 2002-07-15 |
CA2186749C (en) | 2006-08-29 |
EP0752830B1 (en) | 2002-06-19 |
JPH09511659A (ja) | 1997-11-25 |
DE69527139D1 (de) | 2002-07-25 |
AU706402B2 (en) | 1999-06-17 |
EP1197181B1 (en) | 2004-11-17 |
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