JP2004195232A - 一対の腰椎椎体間インプラントおよび隣接する椎体を癒合させる方法 - Google Patents
一対の腰椎椎体間インプラントおよび隣接する椎体を癒合させる方法 Download PDFInfo
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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
- A61F2/02—Prostheses implantable into the body
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- 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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- 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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- 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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- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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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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- 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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- 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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- A61F2/00—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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- 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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- 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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- 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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- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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- A—HUMAN NECESSITIES
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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
- A61F2/02—Prostheses implantable into the body
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- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
【解決手段】一対の腰椎椎体間インプラントは、隣接する脊椎骨間の腔内に横方向に押し込まれて、これら脊椎骨の間の椎間板の代わりをするように設計されている。各インプラントは第1および第2の矢状の壁と、一方の端部側の前部壁と、他方の端部側の後部壁と、を備える。2つのインプラントは互いに非対象であるため、経椎間孔腰椎椎体間癒合術により適している。第1のインプラントは湾曲した外面を持つ第1の矢状壁と、実質的に平面状の第2の矢状壁と、を有していることが好ましい。
【選択図】図1
Description
除圧は片側から行われる。椎間板が露出され、その材料が片側から除去される。この時点での目的は、骨の形成を防止する軟骨組織を除去すること、骨移植のために十分に血管を供給して軟骨下骨を露出させること、および第1および第2のケージのための間隔をあけることを可能にすることである。一対の異なるケージのための通路が、切除された椎間関節の直下にある入口点から横方向に形成される。これも、通常、最も多くの神経根圧縮が発生している側、または椎間板ヘルニア等の2回目の手術の場合は、瘢痕組織が形成されていない側となる。
この発明の目的は、経椎間孔腰椎椎体間癒合技術により適した一対の腰椎椎体間インプラントを提供することである。
本発明によれば、脊椎椎体間癒合術のための隣接する脊椎骨間の椎間腔に横方向に押し込まれるように設計された一対の腰椎椎体間インプラントが提供される。
Claims (19)
- 脊椎椎体間癒合術のために、隣接する脊椎骨間の椎間腔に横方向に押し込まれるように設計された一対の腰椎椎体間インプラントであって、各インプラントは、
第1および第2の矢状壁(5、7;6、8)と、
一方の端部側の前部壁(10)および他方の端部側の後部壁(9、11)であって、前記後部壁(9、12)は位置決めツールを受け入れる手段(21)を有する前部壁および後部壁と、
上面および底面と、を含み、
前記第1および第2の矢状壁はそれぞれ外面、上端部および底端部を有し、
2つのインプラントは互いに非対象である、一対のインプラント。 - 第1のインプラントは湾曲した外面を持つ第1の矢状壁と、実質的に平面状の第2の矢状壁と、を有している、請求項1に記載の一対。
- 少なくとも1つの支柱(15、16)が2つの矢状壁の間に延在する、請求項1に記載の一対。
- 第2のインプラントは湾曲した外面を持つ第1の矢状壁と、実質的に平面状の第2の矢状壁と、を有している、請求項2に記載の一対。
- 第1のインプラントの外面間の距離は第2のインプラントの2つの外面間の距離よりも大きい、請求項3に記載の一対。
- 第1のケージの少なくとも1つの矢状壁および第2のケージの1つの矢状壁は、それぞれ丸い上端部および底端部を有する、請求項1に記載の一対。
- 矢状壁の平面は合わせ面である、請求項3に記載の一対。
- 各インプラントはケージの形態である、請求項1に記載の一対。
- 最初に椎間腔内へ挿入される第1のインプラントは、最初に進入する丸い側面を有する、請求項1に記載の一対。
- 2番目に椎間腔内へ挿入される第2のインプラントは、反対側面に丸い前端部を有する、請求項1に記載の一対。
- 少なくとも一方のインプラントは、レールのように椎間腔内へのインプラントの挿入を容易し且つ挿入されたインプラントの前方および後方の移動を防止するように設計された上向きの支柱を有する請求項1に記載の一対。
- 少なくとも一方のインプラントは、前方部分程高くない後方部分を有する形状をしており、それによって脊柱前湾を生じる、請求項1に記載の一対。
- 2番目に椎間腔内へ挿入される第2のインプラントは第1のケージよりも小さく、2つのインプラントの高さおよび長さは実質的に同一である、請求項1に記載の一対。
- 間に椎間腔を有する隣接する椎体を癒合させる方法であって、椎間板のスペースを空けることと、片側で神経孔を開いて脊柱管を開くことと、丸い横面を有し且つ横方向に椎間腔内へ最も奥まで進入するように設計された第1のインプラントを挿入することと、反対側面に丸い前端部を有する第2のインプラントを導入し、この第2のインプラントを用いて第1のインプラントをその第1の位置へ反対横方向に押し込むことと、を含み、第2のインプラントは第1のインプラントと非対称であり且つ第1のインプラントと対になって第1のインプラントを横方向にさらに押し込む、方法。
- 第2のインプラントは、第1のインプラントの一方の側面に対応する平らな側面を有する、請求項14に記載の方法。
- 第2のインプラントは、第1のインプラントの平らな側面に対応する平らな側面を有する、請求項14に記載の方法。
- 第2のケージは第1のインプラントよりも小さい、請求項14に記載の方法。
- 第1のインプラントおよび第2のインプラントはそれぞれ、前面よりも短い後面を有する、請求項14に記載の方法。
- 2つのインプラントはケージの形態であり、各インプラントは、骨移植材料で満たされる中空スペースを有する、請求項14に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02406120A EP1430858B1 (en) | 2002-12-19 | 2002-12-19 | A pair of lumbar interbody implants and method of fusing together adjoining vertebrae bodies |
Publications (1)
Publication Number | Publication Date |
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JP2004195232A true JP2004195232A (ja) | 2004-07-15 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003418963A Pending JP2004195232A (ja) | 2002-12-19 | 2003-12-17 | 一対の腰椎椎体間インプラントおよび隣接する椎体を癒合させる方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6942697B2 (ja) |
EP (1) | EP1430858B1 (ja) |
JP (1) | JP2004195232A (ja) |
KR (1) | KR20040054513A (ja) |
PL (1) | PL209138B1 (ja) |
Families Citing this family (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7918876B2 (en) | 2003-03-24 | 2011-04-05 | Theken Spine, Llc | Spinal implant adjustment device |
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WO2005102226A1 (de) | 2004-04-26 | 2005-11-03 | Synthes Gmbh | Zwischenwirbelprothese oder bandscheibenprothese |
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2002
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- 2003-12-17 PL PL364124A patent/PL209138B1/pl unknown
- 2003-12-19 US US10/739,529 patent/US6942697B2/en not_active Expired - Lifetime
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PL209138B1 (pl) | 2011-07-29 |
KR20040054513A (ko) | 2004-06-25 |
EP1430858B1 (en) | 2012-11-14 |
EP1430858A1 (en) | 2004-06-23 |
US20040186572A1 (en) | 2004-09-23 |
PL364124A1 (en) | 2004-06-28 |
US6942697B2 (en) | 2005-09-13 |
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