JP2018531096A - 関節接合式拡張可能な椎間インプラント - Google Patents
関節接合式拡張可能な椎間インプラント Download PDFInfo
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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
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- 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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- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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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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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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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- A61F2002/30836—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves knurled
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Abstract
Description
本出願は、2013年3月1日出願の米国特許出願第13/782,724号の一部継続出願である、2013年8月9日出願の米国特許出願第13/963,720号の一部継続出願であり、これらの開示は、本明細書にその全体が組み込まれる。
駆動リンク120Eは、図39で最もよく見られるように、例えば、ねじ切りU字形リンク108Eの形態を有する作動ねじに枢動可能に係合されてもよい。ねじ切りU字形リンク108Eは、ねじ部分334E及び頭部分336Eを含んでいてもよい。ねじ部分334Eは、ねじ山384Eを含んでいてもよい。頭部分336Eは、図39に例示されるように、クレビスの形態であってもよい。ピン106Eは、頭部分336Eの貫通開口338Eを通り、駆動リンク120Eのスロット202Eを貫通して、駆動リンク120E及びU字形リンク108Eを固定してもよい。図39に示される実施形態では、ピン106Eは、分割されている場合があるが、代替実施形態は、単一のピンの使用を含んでもよい。
Claims (20)
- 関節の骨を分離するためのスペーサーであって、
長手方向軸を有し、少なくとも1つの傾斜表面を有する、フレームと、
第1の端板であって、前記関節の第1の骨に係合するように構成され、前記フレームの前記少なくとも1つの傾斜表面と接合可能な少なくとも1つの傾斜表面を有し、これによって前記第1の端板が前記フレームの長手方向軸に沿った方向に前記フレームに対して移動されると、前記第1の端板の少なくとも1つの端が、前記フレームから離れる方向に移動されて、前記スペーサーを開く、第1の端板と、
前記関節の第2の骨に係合するように構成された第2の端板と、
前記フレームに対して移動可能なリンクであって、前記第1の端板に枢動可能に係合可能であり、これによって前記リンクが前記フレームに対して移動されると、前記フレームの長手方向軸に沿って前記第1の端板を移動させる突起部を有する、リンクと、
前記フレームに対して移動可能な作動ねじであって、前記リンクに接続されて、前記作動ねじが前記フレームに対して移動されると、前記リンクの運動を引き起こす、作動ねじを備える、スペーサー。 - 前記スペーサーが、折り畳まれた状態から開いた状態に移動可能であり、前記開いた状態において、前記スペーサーの遠位端が前記スペーサーの近位端の高さよりも高い高さを有する、請求項1に記載のスペーサー。
- 前記スペーサーが、折り畳まれた状態から開いた状態に移動可能であり、前記開いた状態において、前記スペーサーは、最大12°の前弯角度を有し得る、請求項1に記載のスペーサー。
- 前記第1の端板が、一対の耳部分を備え、前記耳部分の各々が、孔を備える、請求項1に記載のスペーサー。
- ピボットピンが、前記孔の各々を貫通して、前記第1の端板を前記リンクに枢動可能に結合し得る、請求項4に記載のスペーサー。
- 前記リンクが、一端に端板係合突起部を有する本体部分を備える、請求項1に記載のスペーサー。
- ピボットピンが、前記端板係合突起部のうちの1つを貫通して、前記リンクを前記第1の端板に枢動可能に結合する、請求項6に記載のスペーサー。
- 前記リンクの前記本体部分が、スロットを備え、ピンが、前記スロットを通って、かつ前記作動ねじの頭部分を通って延在して、前記リンクと前記作動ねじとを結合する、請求項6に記載のスペーサー。
- 前記作動ねじにねじ係合されたナットをさらに備え、前記ナットが、前記作動ねじを前記フレームに対して移動させるように前記フレームに対して回転可能である、請求項1に記載のスペーサー。
- 前記ナットは、前記フレームに対して所定の経路に沿って平行移動が可能である、請求項9に記載のスペーサー。
- 前記ナットは、前記作動ねじと前記フレームとの間の複数の角度配向で回転可能である、請求項9に記載のスペーサー。
- 前記第2の端板が、前記フレームの前記少なくとも1つの傾斜表面と接合可能な少なくとも1つの傾斜表面を有し、これによって、前記第2の端板が前記フレームに対して前記フレームの長手方向軸に沿った方向に移動されると、前記第2の端板が、前記フレームから離れる方向に移動され、前記スペーサーの高さを増加させる、請求項1に記載のスペーサー。
- 前記第1の端板は、その長さの実質的な部分に沿って湾曲している、請求項1に記載のスペーサー。
- 前記第1の端板及び前記フレームは、それらの間に摺動フランジ接続を形成する、請求項1に記載のスペーサー。
- 前記フレームは、少なくとも2つの傾斜表面を備え、前記第1の端板は、前記フレームの前記少なくとも2つの傾斜表面のうちの少なくとも1つと接合可能な少なくとも1つの傾斜表面を備え、これによって、前記端板が前記作動ねじの回転と前記リンクの運動によって摺動可能に移動されると、前記少なくとも1つの第1の端板傾斜表面が、前記少なくとも1つのフレーム傾斜表面に接して摺動し、前記第1の端板が前記リンクへの前記接続で枢動する一方で、前記長手方向軸を横切る軸に沿って移動して、前記スペーサーの高さを増加させることを引き起こす、請求項1に記載のスペーサー。
- 前記第1の端板は、前記インプラントが前記関節の骨の間に配置されると、前記関節の骨に係合するように構成された1つ以上の突起部を備える、請求項1に記載のスペーサー。
- 前記ナットは、周溝を備え、前記フレームの近位端のねじ支持体は、周溝を備え、前記スペーサーは、前記フレームと関連付けられた前記ナットを回転可能に保持するために、前記ナット内の前記溝及び前記支持体内の前記溝の両方内に部分的に配置されるように構成されたリングをさらに備える、請求項1に記載のスペーサー。
- 関節の骨を分離する方法であって、
前記関節の骨の間にスペーサーを挿入することであって、前記スペーサーは、
長手方向軸を有し、少なくとも1つの傾斜表面を有する、フレームと、
第1の端板であって、前記関節の第1の骨に係合するように構成され、前記フレームの前記少なくとも1つの傾斜表面と接合可能な少なくとも1つの傾斜表面を有し、これによって前記第1の端板が前記フレームの長手方向軸に沿った方向に前記フレームに対して移動されると、前記第1の端板の少なくとも1つの端が、前記フレームから離れる方向に移動されて、前記スペーサーを開く、第1の端板と、
前記関節の第2の骨に係合するように構成された第2の端板と、
前記フレームに対して移動可能なリンクであって、前記第1の端板に枢動可能に係合可能であり、これにより前記リンクが前記フレームに対して移動されると、前記フレームの長手方向軸に沿って前記第1の端板を移動させる突起部を有する、リンクと、
前記フレームに対して移動可能な作動ねじであって、前記リンクに接続されて、前記作動ねじが前記フレームに対して移動されると、前記リンクの運動を引き起こす、作動ねじを備える、挿入することと、
前記作動ねじを回転させて、前記リンクを移動させ、これにより前記第1及び第2の端板を変位させることであって、前記第1の傾斜表面の前記少なくとも1つの傾斜表面は、前記フレームの前記少なくとも1つの傾斜表面に沿って摺動して、前記第1の端板の少なくとも1つの端が前記フレームから離れる方向に移動する一方で、前記第1の端板の反対側の端が前記リンクで枢動することを引き起こす、変位させることと、を含む、方法。 - 前記第1の端板は、前記リンクと前記第1の端板とを結合しているピボットピンの周りを枢動する、請求項18に記載の方法。
- 前記作動ねじの回転は、前記スペーサーが開いた状態へと移動することを引き起こし、前記スペーサーの遠位端は、前記スペーサーの近位端の高さよりも高い高さを有する、請求項18に記載の方法。
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