JP2014513580A - 6運動自由度の脊椎安定化デバイスおよび方法 - Google Patents
6運動自由度の脊椎安定化デバイスおよび方法 Download PDFInfo
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- JP2014513580A JP2014513580A JP2013555536A JP2013555536A JP2014513580A JP 2014513580 A JP2014513580 A JP 2014513580A JP 2013555536 A JP2013555536 A JP 2013555536A JP 2013555536 A JP2013555536 A JP 2013555536A JP 2014513580 A JP2014513580 A JP 2014513580A
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Abstract
【選択図】図1
Description
本発明は、手術または外傷後、自然な運動学的特色を保存しながら、脊椎の隣接する椎骨を安定させることに関する。
椎間デバイスは、脊椎の疾患または障害に対処する、あるいは外傷による損傷に対処するために使用される。これらのデバイスは、例えば、体重を支承しながら、隣接する椎骨の移動を安定させる、誘導する、また制限するように動作可能である。
本発明による、移植片は、可撓性コアと、コアの第1の係合表面に接触するように動作可能である第1の支持構成要素と、コアの第2の反対の係合表面に接触するように動作可能である第2の支持構成要素とを含む。
(2)コアの軸方向圧縮に対応する、線「Y」によって示される方向における平行移動
(3)係合表面に沿って摺動するコアに対応する、線「Z」によって示される方向における平行移動
(4)コアの片側の圧縮に対応する、線「X」によって示される軸を中心とした回転
(5)係合表面上を回転するコアに対応する、線「Y」によって示される軸を中心とした回転
(6)コアの片側の圧縮に対応する、線「Z」によって示される軸を中心とした回転
換言すると、移植片の軸が、本発明の移植片を通して、第1の隣接する骨から第2の隣接する骨に延在するように画定される場合、移植片は、以下に関して、隣接する第1の骨と第2の骨との相対移動を可能にすることになる。
(b)軸方向屈曲
(c)軸方向圧縮、および
(d)軸に対する半径方向摺動
代替実施形態では、コアは、実質的に、隣接する区画より狭小である、折曲領域によって分離される、第1および第2の区画を含み、したがって、区画およびその関連付けられた係合表面の角変位を可能にするように屈曲する。
本発明、ならびにその付帯利点および特徴のより完全な理解は、付随の図面と併せて検討される時、以下の発明を実施するための形態を参照することによって、より容易に理解されるであろう。
〔図1〕本発明による、移植片の斜視図を描写する。
〔図2〕移植片の骨係合突起を通して、中心から切り取られた図1の移植片の断面を図示する。
〔図3〕体内の2つの隣接する骨間に位置付けられる、図1の移植片を図示する。
〔図4〕図1の移植片を図示しており、線は、移植片の運動自由度を示す。
〔図5〕本発明の移植片の別の実施形態の斜視分解図を描写する。
〔図6〕移植片の骨係合突起を通して、中心から切り取られた図5の移植片の断面を図示する。
〔図7〕本発明の移植片のさらなる実施形態の斜視分解図を描写する。
〔図8〕移植片の骨係合突起を通して、中心から切り取られた図7の移植片の断面を図示する。
以下の説明では、方向または配向のいずれの参照も、主として、かつ単に、例証の目的のために意図され、いかようにも、本発明の範囲の限定として意図されない。また、本明細書に説明される特定の実施形態は、本発明の制限としてみなされるものではない。
(2)コア200の軸方向圧縮に対応する、線「Y」によって示される方向における平行移動
(3)係合表面404に沿って摺動するコア200に対応する、線「Z」によって示される方向における平行移動
(4)コア200の片側の圧縮に対応する、線「X」によって示される軸を中心とした回転
(5)係合表面404上を回転するコア200に対応する、線「Y」によって示される軸を中心とした回転
(6)コア200の片側の圧縮に対応する、線「Z」によって示される軸を中心とした回転
換言すると、移植片の軸が、本発明の移植片を通して、第1の隣接する骨から第2の隣接する骨に延在するように画定される場合、移植片は、以下に関して、第1および第2の隣接する骨の相対移動を可能にすることになる。
(b)軸方向屈曲
(c)軸方向圧縮
(d)軸に対する半径方向摺動
図5および6に示される代替実施形態では、コア200Aは、実質的に、隣接する区画202A、206Aより狭小である折曲領域210Aによって分離される、第1および第2の区画202A、206Aを含み、したがって、区画202A、206Aの角変位を可能にするように屈曲し、故に、係合表面204A、208Aの角度の相対的変位を可能にする。
Claims (20)
- 患者内の第1および第2の隣接する骨を安定させるための移植片であって、
前記患者の前記第1の骨に添着されるように適合される、第1の側と、平滑な表面を有する、前記第1の側と反対の第2の側と、を有する、第1の支持構成要素と、
平滑な表面を有する第3の側を有し、前記第2の側と嵌合摺動可能係合状態に位置付け可能である、弾性コアであって、前記第3の側と反対の第4の側をさらに含む、弾性コアと、
前記第4の側と嵌合可能な第5の側と、前記患者の前記第2の骨に添着されるように適合される、前記第5の側と反対の第6の側と、を有する、第2の支持構成要素と、
を備え、前記移植片の軸は、前記移植片を通して、前記第1の隣接する骨から前記第2の隣接する骨に延在するように画定され、
前記コアは、前記第1の支持構成要素と第2の支持構成要素との間に位置付け可能であって、それによって、前記第1と第2との隣接する骨の間に位置付け可能であって、
前記コアは、前記軸に沿って、相対的第1の距離において、前記第1および第2の支持のそれぞれの少なくとも一部を分離し、前記コアは、圧力下、弾性的に変形可能であって、前記軸に沿って、第2のより少ない相対的距離において、前記第1および第2の支持の前記それぞれの少なくとも一部を分離し、
前記コアは、前記第2の側と係合状態において、前記軸に対して半径方向方向に、前記第3の側上を摺動してもよく、
前記第1の支持構成要素が、前記第1の隣接する骨に添着され、前記第2の支持構成要素が、前記第2の隣接する骨に添着され、前記コアが、前記第1の支持構成要素と第2の支持構成要素との間に位置付けられると、前記第1および第2の隣接する骨は、安定され、前記コアは、弾性的に変形し、かつ別個にまたは同時に、摺動して、前記骨の自然な運動学的移動と同様に、前記2つの隣接する骨の運動学的移動を可能にする場合がある、移植片。 - 前記コアは、ポリマー材料を含む、請求項1に記載の移植片。
- 前記第3の側に対する前記第2の側の摺動の範囲を制限するための手段をさらに含む、請求項1に記載の移植片。
- 前記第4のおよび第5の側は、相互に係合して摺動可能な平滑な表面を具備する、請求項1に記載の移植片。
- 前記第2の側および前記第3の側の前記平滑な表面のうちの一方は、凸形状を有し、他方は、嵌合凹状形状を有する、請求項1に記載の移植片。
- 前記第4の側および前記第5の側の前記平滑な表面のうちの一方は、凸形状を有し、他方は、嵌合凹状形状を有する、請求項4に記載の移植片。
- 前記弾性コアは、屈曲するように適合される領域を含み、前記コアが、前記第1の支持構成要素と第2の支持構成要素との間に位置付けられ、前記領域が、屈曲されると、前記第2および第5の側によって画定される角度は、変更される、請求項1に記載の移植片。
- 前記屈曲するように適合される領域は、小径を有する、前記コアの周縁を画定する、請求項7に記載の移植片。
- 前記周縁は中心環であって、前記中心環は、中心環に対してより大きな直径の上側および下側環によって境界され、前記中心環は、折曲するように動作可能であり、前記コアの屈曲を可能にする、請求項1に記載の移植片。
- 前記第1および第2の支持構成要素のうちの少なくとも1つに接続され、前記第1および第2の構成要素が、前記隣接する骨に添着されると、前記隣接する骨の相対移動の範囲を制限するように動作可能である、引綱をさらに含む、請求項1に記載の移植片。
- 弾性材料で形成され、第1および第2の端を有し、前記第1の端は、前記第1の側に接続され、前記第2の端は、前記コアに接続される、引綱をさらに含む、請求項1に記載の移植片。
- 前記第1および第6の側と関連付けられ、前記第1または第2の隣接する骨内に挿入され、前記第1または第6の側と前記第1または第2の隣接する骨の接続を改善するように動作可能である、突起をさらに含む、請求項1に記載の移植片。
- 前記突起は、骨内部成長のための空間を提供するように動作可能である、少なくとも1つの空間を含む、請求項12に記載の移植片。
- 前記空間は、前記第1の側の方向に、前記突起の開放端から延在し、前記軸に対して、ある角度で延在する、請求項13に記載の移植片。
- 前記移植片を前記隣接する骨間の空間内に挿入するために有用なツール部品を受け入れるように動作可能である、少なくとも1つの開口部をさらに含む、請求項1に記載の移植片。
- 前記隣接する骨は、指、手、手首、肘、肩、脊椎、腰、膝、足首、足、および足指から成る群から選択される、請求項1に記載の移植片。
- 前記隣接する骨は、前記頸椎間に位置する、請求項1に記載の移植片。
- 前記移植片は、
(a)前記軸を中心とした対向する回転、
(b)軸方向屈曲、
(c)軸方向圧縮、および
(d)前記軸に対する半径方向摺動
に関して、前記第1および第2の隣接する骨の相対運動を可能にする、請求項1に記載の移植片。 - 患者内の第1および第2の隣接する骨を安定させるための移植片であって、
前記患者の前記第1の骨に添着されるように適合される、第1の側と、平滑な表面を有する、前記第1の側と反対の第2の側と、を有する、第1の支持構成要素と、
平滑な表面を有する第3の側を有し、前記第2の側と嵌合摺動可能係合に位置付け可能である、弾性コアであって、前記第3の側と反対の第4の側をさらに含み、前記コアの屈曲を容易にするように動作可能である、折曲領域をさらに含む、弾性コアと、
前記第4の側と嵌合可能な第5の側と、前記患者の前記第2の骨に添着されるように適合される、第5の側と反対の第6の側と、を有する、第2の支持構成要素と、
を備え、前記移植片の軸は、前記移植片を通して、前記第1の隣接する骨から前記第2の隣接する骨に延在するように画定され、
前記コアは、前記第1の支持構成要素と第2の支持構成要素との間に位置付け可能であって、それによって、前記第1の隣接する骨と第2の隣接する骨との間に位置付け可能であって、
前記コアは、前記軸に沿って、相対的第1の距離において、前記第1および第2の支持のそれぞれの少なくとも一部を分離し、前記コアは、圧力下、弾性的に変形可能であって、前記軸に沿って、第2のより少ない相対的距離において、前記第1および第2の支持のそれぞれの少なくとも一部を分離し、
前記コアは、前記第2の側と係合した状態において、前記軸に対して、半径方向に、前記第3の側上を摺動してもよく、
前記第1の支持構成要素は、前記第2の支持構成要素に対して、前記軸を中心として、回転可能であって、
前記第1の支持構成要素が、前記第1の隣接する骨に添着され、前記第2の支持構成要素が、前記第2の隣接する骨に添着され、前記コアが、前記第1の支持構成要素と第2の支持構成要素との間に位置付けられると、前記第1および第2の隣接する骨は、安定され、前記コアは、別個にまたは同時に、弾性的に変形、回転、および摺動し、前記骨の自然な運動学的移動と同様に、前記2つの隣接する骨の運動学的移動を可能にし得る、移植片。 - 患者内の第1および第2の隣接する骨を安定させるための移植片であって、
前記患者の前記第1の骨に添着されるように適合される、第1の側と、平滑な凹状また凸状表面を有する、前記第1の側と反対の第2の側と、を有する、第1の支持構成要素と、
前記第2の側が、凸状表面を有する場合、平滑な凹状表面を、または前記第2の側が、凹状表面を有する場合、平滑な凸状表面を有する、第3の側を有し、前記第3の側は、それによって、第2の側と嵌合摺動可能係合状態に位置付け可能である、弾性コアであって、第3の側と反対の第4の側をさらに含む、弾性コアと、
第4の側と嵌合可能な第5の側と、前記患者の前記第2の骨に添着されるように適合される、第5の側と反対の第6の側と、を有する、第2の支持構成要素と、
を備え、前記移植片の軸は、前記移植片を通して、前記第1の隣接する骨から前記第2の隣接する骨に延在するように画定され、
前記コアは、前記第1の支持構成要素と第2の支持構成要素との間に位置付け可能であって、それによって、前記第1の隣接する骨と第2の隣接する骨との間に位置付け可能であって、
前記コアは、前記軸に沿って、相対的第1の距離において、前記第1および第2の支持のそれぞれの少なくとも一部を分離し、前記コアは、圧力下、弾性的に変形可能であって、前記軸に沿って、第2のより少ない相対的距離において、前記第1および第2の支持のそれぞれの少なくとも一部を分離し、
前記コアは、前記第2の側と係合状態において、前記軸に対して半径方向に、前記第3の側上を摺動してもよく、
前記第1の支持構成要素は、前記第2の支持構成要素に対して、前記軸を中心として回転可能であって、
前記第1の支持構成要素が、前記第1の隣接する骨に添着され、前記第2の支持構成要素が、前記第2の隣接する骨に添着され、前記コアが、前記第1の支持構成要素と第2の支持構成要素との間に位置付けられると、前記第1および第2の隣接する骨は、安定され、前記コアは、両方を別個にまたは同時に、弾性的に変形、回転、および摺動し、前記骨の自然な運動学的移動と同様に、前記2つの隣接する骨の運動学的移動を可能にし得る、移植片。
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US10687958B2 (en) | 2020-06-23 |
US8998991B2 (en) | 2015-04-07 |
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EP2677972B1 (en) | 2020-04-22 |
US20170035575A1 (en) | 2017-02-09 |
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