JP5677701B2 - 球とソケットの係止多軸ファスナー - Google Patents
球とソケットの係止多軸ファスナー Download PDFInfo
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- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
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Description
全ての脊椎インプラントシステムに共通するのは、上記の部材の支持を提供するための、骨に対する適切な繋留の必要性である。骨ネジは一般的に繋留に使用されているが、多軸設計は、患者個人に最小の緊張を与えつつ外科医に設置を確実にするための柔軟性を与える点で非常に効果的であることが証明された。
特許文献3は、骨との係合のための第1外部ネジ切り部位と、係止ナットとの係合のための第2外部ネジ切り部位とを有するネジを開示している。この開示は単一固定シャフトの使用を示している。
特許文献4は、ネジの一部が球面部分の周りを回転できるように、係止ピンを受けるように適応された球面部分を使用するネジを開示している。このネジの問題点は、係止ピンが必要なことと、ベースネジがネジ切りした延長ボルトを伴うことができないことである。
特許文献6は、圧縮と引張を許容するため、特別設計の位置合わせロッドと共に使用されるように適応可能な頂点部分を有するネジを開示している。
特許文献7は、位置合わせロッドを脊椎に係合するのに使用される椎弓根ネジを開示している。ここでネジは位置合わせロッドとネジの間の角度の調整を許容するクランプを有している。
特許文献9は、多軸椎弓根ネジインプラント器具と使用されるモジュール型脊椎板組立体を開示している。器具は、器具をレールに沿って協働して係止する圧縮可能要素を有する。
特許文献10は、骨プレート部材及びファスナーの集合を含む整形外科骨ボルト及び骨プレート構造を開示している。少なくとも1つのファスナーが多重角度搭載構成を可能にする。ファスナーはまた、患者の骨組織に係合するように構成されたネジ切り部分を有する。
特許文献12は、脊椎治療と長骨固定用の器具を開示している。それは、患者の椎骨に係合するように適応されたリンク部材を有する。リンク部材は非線形配置において、骨を結合するため鎖のように取り付けられてもよい。器具はまた、リンク部材を繋げるための少なくとも1つの多方向結合部材を含む。これにより、この器具は脊椎インプラント固定システムに使用可能である。
特許文献15は、椎骨体の内部固定のためのファスナーと骨の固定組立体を開示している。ある実施形態によれば、チューリップアセンブリが使用され、チューリップアセンブリは、外部面に配置された非円形表面を含む。ファスナーはチューリップアセンブリに係合し、そしてネジの頭にチューリップアセンブリを保持するために位置決め可能である。外部面と複数の内部突起を有するキャップが、つがうようにチューリップボデーの非円形表面に結合し、チューリップアセンブリを押圧してロッドを固定する。
特許文献18は、脊椎固定の目的で固定要素(例えば、椎弓根ネジ)をロッドに対して結合するシステムを開示している。システムは固定要素とロッド間の多軸の動きを可能にする。更にシステムは固定要素とロッド間の角度関係を所望の角度に可能にする。
特許文献26は、骨折を減少させ骨を矯正配列させる外部固定器具を開示し、それは、調節とその後のスタイマン(Steinmann)ピンと管状タイロッド間の結合の固定を容易にする滑動自在多関節カップリングを含む。カップリングはそれぞれ、ナット−ボルト組立体によりブロックに対し締め付け可能なクランプラグを有する、カップリング係止クランプの開放リング部分の適合する内部面で囲まれる分割球面アダプタスリーブを含む。さらにナット−ボルト組立体は、2つの直交する方向の調整と場合によりピンの弾性曲げの後に、細長いスロット内に配置され、付属するクランプ部材と協働してスタイマンピンをブロックにクランプする。
特許文献29は、物体の垂直支持シャフトに対する自在の動きや位置決めを可能にする球ジョイントカップリング組立体を開示している。迅速な開放/係止動作が、その中で球とピストンが可動に結合する容器を有する球ジョイント組立体により提供される。球は、ピストンのジョー部分と容器のジョー部分とのグリップ係合により提供される係止動作で、容器とピストンの環状のジョー部分に捕獲される。球部材は線接触、ピストンジョーと球の反対側にある容器ジョーの環状端による圧縮係合で把持される。ピストンは、ネジ切りされた駆動子シャフトの回転による係止係合及び開放を伴う、容器内の軸方向移動に制限される。
また本発明の他の目的は、係止可能な多軸の球とソケットによるファスナーの脊椎安定化システムでの使用を開示することである。
さらに他の本発明の目的は、特定の装着に適合するために必要な在庫量を低減させるため、種々のアンカーを種々のコネクタ部材に固定可能な、係止可能な多軸の球とソケットのシステムの使用を開示することである。
更に別の本発明の目的は、装着中に構成要素の調整を可能にし、それにより広範な種類の脊椎変形の良好な矯正を可能にする、脊椎固定システム用の多軸骨ネジ組立体を提供することである。
さらに本発明の他の目的は、往復式の接続部材に器具なしに接続可能な多軸の骨ネジを提供することである。
また本発明の目的は、アンカーと固定要素を設置するのに最少の道具を必要とする脊椎固定システムを提供することである。
本発明の他の目的と利点は、発明の実施形態に付随する図面を参照した以下の記述から明らかにされる。図面は本発明の仕様の一部を構成し、本発明の例示的実施形態を含み、種々の目的及び特徴を示す。
図全体に関して、脊椎固定システム用に適応された多軸の球とソケットによる係止固定システムの例示的実施形態が示されている。固定システムには、骨アンカーと統合されて保持され形成される球面の球と、多軸ジョイントを形成するための球面の球用のスナップイン型の受容部(38)を含むコネクタ組立体と、を有する。コネクタ組立体はまた、少なくとも2つの骨アンカーを一緒に固定するための接続ロッド部材と共に使用されるレシーバを有する。
20:(軸の)上端 22:ドライバ受容部、ファスナー受容部
30:コネクタ組立体 31:上部コネクタ部材 32:側壁
33:下部コネクタ部材 34:第1側壁 36:第2側壁
38:下部受容部 40:下部スプリット保持リング
41:側壁 42,104:上部保持リング
43:上部保持リング側壁 50:開口部 52:上端
53:(上部保持リングの)上面 54:(下部スプリット保持リングの)内面
56:(上部保持リングの)内面 70:接続ロッド
80:開口部 83:(球面コネクタの)外面
90:縦溝 91:(増量チューブ用)溝
92,96:ショルダー 94:傾斜板 98,100:ばねポケット
102:コイルばね 110:ナット 112:外部ネジ
114:(ナットの)底面 116:(球面コネクタの)ガイド面
118:レール 120:(下部保持リングの)内面
Claims (3)
- 球とソケットのファスナーであって、
軸と球面コネクタを有する繋留部材と、
前記球面コネクタを第1の末端に沿って受容するように構成され調整されたソケットと、第2の末端に固定可能な固定要素と、を有するコネクタ組立体と、
からなり、
上部保持リングが前記ソケット内に配置され、そして前記球面コネクタの上面に沿って位置決め可能であり、
下部保持リングが前記ソケット内に配置され、そして前記球面コネクタの下面に沿って位置決め可能であり、
それにより前記コネクタ組立体が前記繋留部材に対して多軸に移動し、
前記固定要素が前記多軸移動を制御するため非係止位置と係止位置との間で移動可能であり、
前記コネクタ組立体の下面は、前記球面コネクタの最大直径が前記下部保持リングを通過できるように前記下部保持リングを拡大するため、前記球面コネクタを前記ソケットに固定する間、前記下部保持リングの上面と協働するように位置決めされる複数の傾斜面を有し、
ここにおいて、前記球面コネクタの頭部が、前記第1の末端を通過して受容され、そして、前記上部保持リングと前記下部保持リングとの間に配置され、
前記下部保持リングは、前記下部保持リングの直径を拡大可能にするための裂け目を有し、
前記コネクタ組立体は、ロッド部材を受容する寸法の実質的にU字型の開口部を有し、
前記上部保持リングの上面は前記U字型の開口部に伸長するロッド係合面を有し、ここにおいて、前記球面コネクタを摩擦係合するため前記固定要素の前記係止位置が前記上部保持リングを移動させ、
前記上部保持リングは、連結ロッド部材と協働するための円筒形に凹んだ上部面を有し、
前記係止位置は、前記球面コネクタを固定するため、前記下部保持リングに対し、前記コネクタ組立体の内面と前記球面コネクタの下面とに係合するようにさせ、
前記軸は少なくとも1つのらせん状ネジを有し、
前記コネクタ組立体の前記第2の末端は内部ネジを有し、前記固定要素は更に止めネジとして画定され、
前記コネクタ組立体の前記第2の末端は外部ネジを有し、前記固定要素は更に内部ネジを有するナットとして画定され、
前記上部保持リングと上部コネクタ部材との間に配置される偏移部材を有する、
ことを特徴とする球とソケットのファスナー。 - 球とソケットのファスナーであって、
軸と球面コネクタを有する繋留部材と、
ここにおいて前記球面コネクタは、少なくとも1つのガイド面を有し、
前記球面コネクタを第1の末端に沿って受容するように構成され調整されたソケットと、第2の末端に固定可能な固定要素と、を有するコネクタ組立体と、
からなり、
上部保持リングが前記ソケット内に配置され、そして前記球面コネクタの上面に沿って位置決め可能であり、
前記上部保持リングが前記少なくとも1つのガイド面と協働するように配置された少なくとも1つのレールを有し、
下部保持リングが前記ソケット内に配置され、そして前記球面コネクタの下面に沿って位置決め可能であり、
前記少なくとも1つのガイド面と前記少なくとも1つのレールが協働し、
それにより前記コネクタ組立体が前記繋留部材に対して単一軸方向に移動し、
前記単一の軸方向の移動を制御するため前記固定要素が非係止位置と係止位置との間で移動可能であり、
前記コネクタ組立体の下面は、前記球面コネクタの最大直径が前記下部保持リングを通過できるように前記下部保持リングを拡大するため、前記球面コネクタを前記ソケットに固定する間、前記下部保持リングの上面と協働するように位置決めされる複数の傾斜面を有し、
ここにおいて、前記球面コネクタの頭部が前記第1の末端を通過して受容され、そして、前記上部保持リングと前記下部保持リングとの間に配置され、
前記下部保持リングは、前記下部保持リングの直径を拡大可能にするための裂け目を有し、
前記コネクタ組立体は、ロッド部材を受容する寸法の実質的にU字型の開口部を有し、
前記上部保持リングの上面は前記U字型の開口部に伸長するロッド係合面を有し、ここにおいて、前記球面コネクタを摩擦係合するため前記固定要素の前記係止位置が前記上部保持リングを横切り、
前記上部保持リングは、連結ロッド部材と協働するための円筒形に凹んだ上部面を有し、
前記係止位置は、前記球面コネクタを固定するため、前記下部保持リングに対し、前記コネクタ組立体の内面と前記球面コネクタの下面とに係合するようにさせ、
前記軸は少なくとも1つのらせん状ネジを有し、
前記コネクタ組立体の前記第2の末端は内部ネジを有し、前記固定要素は更に止めネジとして画定され、
前記コネクタ組立体の前記第2の末端は外部ネジを有し、前記固定要素は更に内部ネジを有するナットとして画定され、
前記上部保持リングと上部コネクタ部材との間に配置される偏移部材を有する、
ことを特徴とする球とソケットのファスナー。 - 固定位置に係止可能な球とソケットの多軸ジョイントであって、
1つの端部に脊椎に繋留するために使用されるネジを有し、他の端部に、枢動点として動作しその周りをコネクタ組立体が多軸に移動可能な球面コネクタを有し、
前記コネクタ組立体は、実質的にU字形を有し、上部保持リングと下部スプリット保持リングを収容する1つのソケットとして動作する下部受容部を有し、
前記コネクタ組立体の下面は、前記球面コネクタの最大直径が前記下部保持リングを通過できるように前記下部保持リングを拡大するため、前記球面コネクタを前記ソケットに固定する間、前記下部保持リングの上面と協働するように位置決めされる複数の傾斜面を有し、
前記ソケットは、前記下部スプリット保持リングを一時的に偏移させて前記下部スプリット保持リングを通過し挿入された前記球面コネクタを受容し、それにより前記球面コネクタが前記上部保持リングと前記下部スプリット保持リングの間に配置されることを可能にする、
ことを特徴とするジョイント。
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PCT/US2009/064187 WO2010056846A2 (en) | 2008-11-14 | 2009-11-12 | Locking polyaxial ball and socket fastener |
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ES2373690T3 (es) | 2007-12-13 | 2012-02-07 | Biedermann Motech Gmbh | Dispositivo de anclaje para anclar una varilla en un hueso o vértebra. |
US8157846B2 (en) | 2008-07-24 | 2012-04-17 | Ingenium S.A. | Locking mechanism with two-piece washer |
US8075603B2 (en) | 2008-11-14 | 2011-12-13 | Ortho Innovations, Llc | Locking polyaxial ball and socket fastener |
-
2009
- 2009-01-16 US US12/355,145 patent/US7947065B2/en active Active
- 2009-11-12 EP EP09826737.0A patent/EP2361044A4/en not_active Withdrawn
- 2009-11-12 WO PCT/US2009/064187 patent/WO2010056846A2/en active Application Filing
- 2009-11-12 AU AU2009314046A patent/AU2009314046B2/en not_active Ceased
- 2009-11-12 KR KR1020117013596A patent/KR101688241B1/ko active IP Right Grant
- 2009-11-12 JP JP2011536462A patent/JP5677701B2/ja active Active
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2011
- 2011-05-06 US US13/102,453 patent/US8465530B2/en active Active
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US7947065B2 (en) | 2011-05-24 |
KR101688241B1 (ko) | 2017-01-02 |
US8465530B2 (en) | 2013-06-18 |
WO2010056846A2 (en) | 2010-05-20 |
WO2010056846A3 (en) | 2010-08-26 |
EP2361044A4 (en) | 2013-07-31 |
AU2009314046A1 (en) | 2010-05-20 |
JP2012508615A (ja) | 2012-04-12 |
US20100125302A1 (en) | 2010-05-20 |
KR20110099247A (ko) | 2011-09-07 |
EP2361044A2 (en) | 2011-08-31 |
AU2009314046B2 (en) | 2015-10-29 |
US20110208251A1 (en) | 2011-08-25 |
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