JP4227093B2 - 脊椎固定装置 - Google Patents
脊椎固定装置 Download PDFInfo
- Publication number
- JP4227093B2 JP4227093B2 JP2004363286A JP2004363286A JP4227093B2 JP 4227093 B2 JP4227093 B2 JP 4227093B2 JP 2004363286 A JP2004363286 A JP 2004363286A JP 2004363286 A JP2004363286 A JP 2004363286A JP 4227093 B2 JP4227093 B2 JP 4227093B2
- Authority
- JP
- Japan
- Prior art keywords
- spinal
- spinal fusion
- fixation device
- spine
- adjacent
- 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 - Lifetime
Links
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- A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
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- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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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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- 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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- 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
- A61F2310/00005—The prosthesis being constructed from a particular material
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- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- A—HUMAN NECESSITIES
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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
- 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
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- A61F2310/00035—Other metals or alloys
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- A—HUMAN NECESSITIES
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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
- 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
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Oral & Maxillofacial Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Rheumatology (AREA)
- Dentistry (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Shovels (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Massaging Devices (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Materials For Medical Uses (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
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 (8)
- 第1の二つの隣接する脊椎の椎体(V)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)と、第2の二つの隣接する脊椎の椎体(V)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)であって、第1の突出部と第2の突出部が、体内脊椎融合移植部分(40,41,440,540)の高さより大きい寸法だけ、互いから離れており、前記第1の突出部と第2の突出部の各々が、前記体内脊椎融合移植部分(40,41,440,540)に対向する偏心傾斜内面(36)を有する、前記第1の突出部と第2の突出部と、
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距離以下の長さを有するとともに、前記突出部(16,17,116,117,316,317,516,517)を椎体(V)に係合させるための駆動器具(80)を頂部用材に係合するために頂部用材に設けられる手段と、隣接する脊椎(V)に衝合する底面(30,530)とを備え、前記底面(30,530)に設けられ前記第1及び第2の突出部(16,17,116,117,316,317,516,517)間に配置された組み合わせ手段(35,390,435,532,534)により体内脊椎融合移植部分(40,41,440,540)に組み合わせられる頂部用材(14,114,214,314,414,514)と、
前記頂部用材(14,114,214,414,514)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体内脊椎融合移植部分(40,41,440,540)に結合する手段(60)とを備え、
前記第1の突出部と第2の突出部が隣接する脊椎の間に挿入されるとき、前記第1の突出部と第2の突出部の偏心傾斜内面(36)が前記体内脊椎融合移植部分(40,41,440,540)の方へ該隣接する脊椎を押して圧縮するようになっている、
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(40,41,440,540)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(10,11,110,210,310,410,510,610)。 - 二つの隣接する脊椎(V)間に埋め込み可能な体内脊椎融合移植部分(40,41,440,540)との組み合わせにおいて、前記突出部(16,17,116,117,316,317,516,517)のそれぞれは、前記体内脊椎融合移植部分(40,41,440,540)に対向する前記偏心傾斜内面(36)を備え、前記突出部(16,17,116,117,316,317,516,517)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隣接する骨を体内脊椎融合移植部分(40,41,440,540)に向かって押圧する請求項1記載の脊椎固定装置(10,11,110,210,310,410,510,610)。
- 前記組み合わせ手段は、センター・バーで(390,392)構成され、該センター・バー(390,392)は一端にセンター・バーに接合、収容する凹部(44)を有する体内脊椎融合移植部分(40,41,440,540)に組み合わせられる請求項1記載の脊椎固定装置(10,11,110,210,310,410,510,610)。
- 前記頂部用材(14,114,214,414,514)を体内脊椎融合移植部分(40,41,440,540)に結合する前記結合する手段は、前記頂部用材(14,114,214,414,514)を体内脊椎融合移植部分(40,41,440,540)にロック可能に固定する固定装置(66、66a、69b)を有している請求項1記載の脊椎固定装置(10,11,110,210,310,410,510,610)。
- 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体内脊椎融合移植部分(40,41,440,540)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前記体内脊椎融合移植部分(40,41,440,540)と組み合わせて用いる、請求項1〜4のいずれかに記載の脊椎固定装置。
- 前記体内脊椎融合移植部分(40,41,440,540)が、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、前記体内脊椎融合移植部分(40,41,440,540)と組み合わせて用いる請求項5記載の脊椎固定装置。
- 隣接する脊椎の一方から前記体内脊椎融合移植部分(40,41,440,540)を介して隣接する脊椎の他方へ骨の成長を容易にするための骨融合促進物質を備える請求項5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7記載の脊椎固定装置。
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US21962694A | 1994-03-28 | 1994-03-28 |
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JP52524695A Division JP3882941B2 (ja) | 1994-03-28 | 1995-03-28 | 多分節脊椎アライメント装置、脊椎移植部分の結合装置、脊椎固定装置 |
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JP52524695A Expired - Lifetime JP3882941B2 (ja) | 1994-03-28 | 1995-03-28 | 多分節脊椎アライメント装置、脊椎移植部分の結合装置、脊椎固定装置 |
JP2004363286A Expired - Lifetime JP4227093B2 (ja) | 1994-03-28 | 2004-12-15 | 脊椎固定装置 |
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JP (2) | JP3882941B2 (ja) |
KR (1) | KR100411166B1 (ja) |
CN (1) | CN1160023C (ja) |
AT (3) | ATE282361T1 (ja) |
CA (1) | CA2186749C (ja) |
DE (3) | DE69527139T2 (ja) |
DK (2) | DK0752830T3 (ja) |
ES (3) | ES2342828T3 (ja) |
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- 1995-03-28 DK DK95914197T patent/DK0752830T3/da active
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- 1995-03-28 AT AT01128856T patent/ATE282361T1/de not_active IP Right Cessation
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- 1995-03-28 DE DE69533780T patent/DE69533780T2/de not_active Expired - Lifetime
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EP0752830B1 (en) | 2002-06-19 |
EP1197181B1 (en) | 2004-11-17 |
ES2342828T3 (es) | 2010-07-15 |
DE69533780T2 (de) | 2005-11-03 |
DE69527139D1 (de) | 2002-07-25 |
CA2186749A1 (en) | 1995-10-05 |
ES2231380T3 (es) | 2005-05-16 |
DE69533780D1 (de) | 2004-12-23 |
DK0752830T3 (da) | 2002-08-19 |
JPH09511659A (ja) | 1997-11-25 |
DK1197181T3 (da) | 2005-03-14 |
JP3882941B2 (ja) | 2007-02-21 |
EP1500372A1 (en) | 2005-01-26 |
PT752830E (pt) | 2002-10-31 |
CN1148796A (zh) | 1997-04-30 |
AU706402B2 (en) | 1999-06-17 |
ATE282361T1 (de) | 2004-12-15 |
EP0752830A1 (en) | 1997-01-15 |
EP1197181A1 (en) | 2002-04-17 |
DE69536058D1 (de) | 2010-05-06 |
ATE461664T1 (de) | 2010-04-15 |
JP2005095660A (ja) | 2005-04-14 |
AU2129095A (en) | 1995-10-17 |
WO1995026164A1 (en) | 1995-10-05 |
ES2177641T3 (es) | 2002-12-16 |
EP1500372B1 (en) | 2010-03-24 |
KR100411166B1 (ko) | 2004-04-30 |
ATE219342T1 (de) | 2002-07-15 |
DE69527139T2 (de) | 2003-02-20 |
CA2186749C (en) | 2006-08-29 |
PT1197181E (pt) | 2005-02-28 |
CN1160023C (zh) | 2004-08-04 |
EP0752830A4 (en) | 1998-12-09 |
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