JP4620689B2 - 中間脊椎移植体、ならびに脊柱の脊椎固定術のための外科手術方法 - Google Patents
中間脊椎移植体、ならびに脊柱の脊椎固定術のための外科手術方法 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
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Description
a)円錐状部分と雄ねじとを担持する頭部と、
b)同様に雄ねじを担持する頭部に成形された中央部分と、
c)中央部分に成形された下部構造とを有し、
d)中央部分が、頭部から下部構造に延びる複数のストラットによって形成され、この結果、頭部とストラットと下部構造との間に、大きな面積の窓部が開放したままである中間脊椎移植体、
ならびに
隣接した椎骨体の間の椎骨の間隙に、少なくとも1つの中間脊椎移植体が挿入される脊柱の脊椎固定術のための外科手術法に関する。
公知の中間脊椎移植体の場合、頭部は、雄ねじを担持する円筒状部分と、端部領域で隣接する円錐状のねじのない部分とを有する。この中間脊椎移植体により、危険なしに、椎骨体の特に腹側周囲の完全な延伸を行うことは不可能であるが、この理由は、隣接した大静脈及び大動脈の損傷の危険が、完全には排除されないからである。
e)頭部の雄ねじが円錐状部分に形成され、
f)頭部の外側端部領域が、外側から見て凸状に湾曲しかつ鋭い縁部がない保護隆起部によって形成されることによって解決される。
a)椎骨の間隙への入口が、顕微手術により小さな脊椎関節を部分除去して背側側面から開かれる段階と、
b)椎骨の間隙の上板及び底板の軟骨が取り除かれる段階と、
c)椎骨の間隙の背側領域に、ねじが切り込まれる段階と、
d)延伸器具を用いて椎骨の間隙が事前延伸される段階と、
e)事前延伸がスペーサ要素を用いて直立に保持されて、延伸器具が取り除かれる段階と、
f)椎骨の間隙のねじに、第1の中間脊椎移植体がねじ込まれる段階と、
g)第1の中間脊椎移植体から間隔を置いて挿入される第2の中間脊椎移植体のために、a)〜f)の段階が繰り返される段階と、を含む方法によって解決される。
他の場合には、追加的に内部の固定具による帯固定が行われる。
Claims (24)
- 中間脊椎移植体であって、
a)円錐状部分(13)と雄ねじ(14)とを担持する頭部(2)と、
b)同様に雄ねじ(16)を担持し、かつ、頭部(2)に隣接して成形された中央部分(5、6、7、8)と、
c)前記中央部分(5、6、7、8)に隣接して成形された下部構造(3)と
を有し、
d)前記中央部分(5、6、7、8)が、前記頭部(2)から前記下部構造(3)に延びる複数のストラットによって形成され、この結果、前記頭部(2)と前記ストラット(5、6、7、8)と前記下部構造(3)との間に、大きな面積の窓部(9、10、11、12)が開放したままである中間脊椎移植体において、
e)前記頭部(2)の前記雄ねじ(14)が、前記円錐状部分(13)に形成され、 f)前記頭部(2)の外側端部領域が、外側から見て凸状に湾曲しかつ鋭い縁部がない保護隆起部(15)によって形成され、
g)前記円錐状部分(13)が、前記頭部(2)の前記外側端部領域に向かってに先細りする、
ことを特徴とする中間脊椎移植体。 - 前記頭部(2)の前記円錐状部分(13)が、少なくとも7mmの軸方向延長部(D4)を有することを特徴とする、請求項1に記載の中間脊椎移植体。
- 前記頭部(2)の前記雄ねじ(14)が、少なくとも3つの完全なねじ山を備えることを特徴とする、請求項1又は2に記載の中間脊椎移植体。
- 前記本体(2)の前記保護隆起部(15)が、少なくとも5mmの軸方向延長部(D3)を備えることを特徴とする、請求項1〜3のいずれか1項に記載の中間脊椎移植体。
- 前記保護隆起部(15)が、閉じたキャップの形状を有することを特徴とする、請求項1〜4のいずれか1項に記載の中間脊椎移植体。
- 前記保護隆起部がリング状であり、かつ中央導通開口部を備えることを特徴とする、請求項1〜4のいずれか1項に記載の中間脊椎移植体。
- 前記下部構造(3)が、少なくとも5mmの軸方向延長部(D5)を備えることを特徴とする、請求項1〜6のいずれか1項に記載の中間脊椎移植体。
- 前記下部構造(3)がプレートであることを特徴とする、請求項1〜7のいずれか1項に記載の中間脊椎移植体。
- 前記下部構造(3)に、ねじ込み器具用の把持装置(18、19)が設けられることを特徴とする、請求項1〜8のいずれか1項に記載の中間脊椎移植体。
- 前記頭部(2)の前記円錐状部分(13)の円錐状外面と、想定される同軸の円筒外面とによって画定される角度(α)が、10°〜20°、好ましくは15°であることを特徴とする、請求項1〜9のいずれか1項に記載の中間脊椎移植体。
- 前記中央部分(5、6、7、8)及び前記下部構造(3)が、前記頭部(2)の前記円錐状部分(15)に対し逆方向に円錐状であることを特徴とする、請求項1〜10のいずれか1項に記載の中間脊椎移植体。
- 前記中央部分(5、6、7、8)及び前記下部構造(3)の前記円錐状外面と、想定される同軸の円筒外面とによって画定される角度(β)が約3°であることを特徴とする、請求項11に記載の中間脊椎移植体。
- 前記中央部分(5、6、7、8)及び前記下部構造(3)の前記円錐状外面と、想定される同軸の円筒外面とによって画定される角度(β)が約6°であることを特徴とする、請求項11に記載の中間脊椎移植体。
- ステンレス鋼から構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- 炭素セラミック材料から構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- アルミニウム合金から構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- チタンから構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- プラスチックから構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- ポリイソシアネートから構成されることを特徴とする、請求項18に記載の中間脊椎移植体。
- 生体吸収可能な材料から構成されることを特徴とする、請求項1〜13のいずれか1項に記載の中間脊椎移植体。
- ポリアクタイドから構成されることを特徴とする、請求項20に記載の中間脊椎移植体。
- 少なくとも1つの軸方向領域で、非回転対称の断面形状を備えることを特徴とする、請求項1〜21のいずれか1項に記載の中間脊椎移植体。
- 前記下部構造(3)が、非回転対称の断面形状を備えることを特徴とする、請求項22に記載の中間脊椎移植体。
- 前記保護隆起部(15)が研磨されることを特徴とする、請求項1〜23のいずれか1項に記載の中間脊椎移植体。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/EP2004/001359 WO2005082292A1 (de) | 2004-02-13 | 2004-02-13 | Zwischenwirbelimplantat sowie chirurgisches verfahren zur spondylodese der lendenwirbelsäule |
Publications (2)
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JP2007521893A JP2007521893A (ja) | 2007-08-09 |
JP4620689B2 true JP4620689B2 (ja) | 2011-01-26 |
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JP2006552466A Expired - Fee Related JP4620689B2 (ja) | 2004-02-13 | 2004-02-13 | 中間脊椎移植体、ならびに脊柱の脊椎固定術のための外科手術方法 |
Country Status (12)
Country | Link |
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US (1) | US8460380B2 (ja) |
EP (1) | EP1713421B1 (ja) |
JP (1) | JP4620689B2 (ja) |
CN (1) | CN100591305C (ja) |
AT (1) | ATE489919T1 (ja) |
AU (1) | AU2004316340B2 (ja) |
BR (1) | BRPI0418538A (ja) |
CA (1) | CA2555405C (ja) |
DE (1) | DE502004011964D1 (ja) |
DK (1) | DK1713421T3 (ja) |
ES (1) | ES2357270T3 (ja) |
WO (1) | WO2005082292A1 (ja) |
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-
2004
- 2004-02-13 AT AT04710828T patent/ATE489919T1/de active
- 2004-02-13 AU AU2004316340A patent/AU2004316340B2/en not_active Ceased
- 2004-02-13 WO PCT/EP2004/001359 patent/WO2005082292A1/de active Application Filing
- 2004-02-13 DE DE502004011964T patent/DE502004011964D1/de not_active Expired - Lifetime
- 2004-02-13 ES ES04710828T patent/ES2357270T3/es not_active Expired - Lifetime
- 2004-02-13 JP JP2006552466A patent/JP4620689B2/ja not_active Expired - Fee Related
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- 2004-02-13 CA CA2555405A patent/CA2555405C/en not_active Expired - Fee Related
- 2004-02-13 CN CN200480041640A patent/CN100591305C/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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CN1913845A (zh) | 2007-02-14 |
ATE489919T1 (de) | 2010-12-15 |
DK1713421T3 (da) | 2011-03-21 |
US20070055374A1 (en) | 2007-03-08 |
BRPI0418538A (pt) | 2007-05-22 |
AU2004316340A2 (en) | 2005-09-09 |
AU2004316340A1 (en) | 2005-09-09 |
US8460380B2 (en) | 2013-06-11 |
JP2007521893A (ja) | 2007-08-09 |
CA2555405C (en) | 2011-01-18 |
CA2555405A1 (en) | 2005-09-09 |
AU2004316340B2 (en) | 2011-03-10 |
WO2005082292A1 (de) | 2005-09-09 |
ES2357270T3 (es) | 2011-04-20 |
EP1713421A1 (de) | 2006-10-25 |
EP1713421B1 (de) | 2010-12-01 |
DE502004011964D1 (de) | 2011-01-13 |
CN100591305C (zh) | 2010-02-24 |
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