JP6412551B2 - 拡張可能な融合装置及びその設置方法 - Google Patents
拡張可能な融合装置及びその設置方法 Download PDFInfo
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- JP6412551B2 JP6412551B2 JP2016501131A JP2016501131A JP6412551B2 JP 6412551 B2 JP6412551 B2 JP 6412551B2 JP 2016501131 A JP2016501131 A JP 2016501131A JP 2016501131 A JP2016501131 A JP 2016501131A JP 6412551 B2 JP6412551 B2 JP 6412551B2
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- end plate
- actuator
- actuator assembly
- fusion device
- height
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- A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
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- General Health & Medical Sciences (AREA)
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- Prostheses (AREA)
Description
以下の議論は第1の端板14に関するが、第2の端板16が本発明の実施形態において第1の端板14と実質的に同一であるので、それが第2の端板16にも同様にあてはまることが理解されるべきである。図40〜45を参照して、例示的な実施形態では、第1の端板14は、第1の端39及び第2の端41を有する。図示される実施形態では、第1の端板14は、第1の端39と第2の端41とを接続する上部面40、及び第1の端39と第2の端41とを接続する下部面42をさらに備える。図示しないが、実施形態では、第1の端板14は貫通開口部をさらに備え得る。貫通開口部は、例示的な実施形態では、骨移植または類似した骨の成長誘導材料受容するようにサイズ決めされる。
Claims (16)
- 椎間インプラントであって、
第1の上部端板部分及び第2の上部端板部分を備える上部端板と、
第1の下部端板部分及び第2の下部端板部分を備える下部端板と、
前記上部端板と前記下部端板との間に配置されたアクチュエータアセンブリであって、前記上部端板及び前記下部端板の前部端に移動係合し、また前記上部端板及び前記下部端板の後部端にも移動係合するように構成されたアクチュエータアセンブリと、を備え、
前記椎間インプラントが、第1の幅及び第1の高さを有する折り畳み構成から、第2の幅を有する水平に拡張された構成までまず移行し、次いで、第2の高さを有する垂直に拡張された構成まで移行するように構成される椎間インプラント。 - 前記アクチュエータアセンブリが、
前記第1の上部端板部分及び前記第2の上部端板部分の前部勾配面と移動係合している前部傾斜アクチュエータアセンブリと、
前記第1の上部端板部分及び前記第2の上部端板部分の後部勾配面と移動係合している後部傾斜アクチュエータアセンブリと、を備える、請求項1に記載の椎間インプラント。 - 前記アクチュエータアセンブリが、
前部傾斜アクチュエータアセンブリであって、
一対の前部高さアクチュエータであって、前記前部高さアクチュエータが各々、前記第1の上部端板部分及び前記第2の上部端板部分の前部勾配面とそれぞれ係合している向かい合った勾配面を備える、前部高さアクチュエータ、ならびに
前記一対の前部高さアクチュエータの間に配置され、前記一対の前部高さアクチュエータと移動係合している、前部幅アクチュエータ、を備える、前部傾斜アクチュエータアセンブリと、
後部傾斜アクチュエータアセンブリであって、
一対の後部高さアクチュエータであって、前記後部高さアクチュエータが各々、前記第1の上部端板部分及び前記第2の上部端板部分の後部勾配面とそれぞれ係合している向かい合った勾配面を備える、後部高さアクチュエータ、ならびに
前記一対の後部高さアクチュエータの間に配置され、前記一対の後部高さアクチュエータと移動係合している、後部幅アクチュエータ、を備える、後部傾斜アクチュエータアセンブリと、を備える、請求項1に記載の椎間インプラント。 - 前記前部幅アクチュエータまたは前記後部幅アクチュエータのうちの少なくとも一方が、楔形である、請求項3に記載の椎間インプラント。
- 前記前部幅アクチュエータが、前記一対の前部高さアクチュエータを水平に押し開くように動作可能であり、前記後部幅アクチュエータが、前記一対の後部高さアクチュエータを水平に押し開くように動作可能である、請求項3に記載の椎間インプラント。
- 一対のねじ式係止スクリューであって、それぞれが、前記前部高さアクチュエータのうちの対応する1つにおける開口部を通って延在し、前記前部高さアクチュエータのうちの対応する1つに係合する、一対のねじ式係止スクリューをさらに備える、請求項3に記載の椎間インプラント。
- 前記一対のねじ式係止スクリューが、前記アクチュエータアセンブリを収縮して、前記上部端板及び前記下部端板を反対方向に垂直に外側へと押しやるように動作可能である、請求項6に記載の椎間インプラント。
- 前記前部幅アクチュエータが、前記後部幅アクチュエータに面する中央開口部を備え、前記中央開口部が、前記前部幅アクチュエータを前記後部幅アクチュエータに向かって引くように動作可能な器具に係合するように構成される、請求項3に記載の椎間インプラント。
- 前記前部傾斜アクチュエータアセンブリが、一端が前記前部高さアクチュエータのうちの1つの中に保持され、反対端が前記前部幅アクチュエータ内の前部停止ピントラック内に配置された、前部停止ピンをさらに備え、前記前部停止ピンが、前記前部幅アクチュエータの移動を制限するように動作可能である、請求項3に記載の椎間インプラント。
- 前記後部傾斜アクチュエータアセンブリが、一端が前記後部幅アクチュエータ内に保持され、反対端が前記後部高さアクチュエータのうちの1つにおける後部停止ピントラック内に配置された、後部停止ピンをさらに備え、前記後部停止ピンが、前記後部幅アクチュエータの移動を制限するように動作可能である、請求項3に記載の椎間インプラント。
- 前記第1の上部端板部分及び前記第2の上部端板部分が、前記上部端板の向かい合った鏡像半分であり、前記第1の下部端板部分及び前記第2の下部端板部分が、前記下部端板の向かい合った鏡像半分である、請求項1に記載の椎間インプラント。
- 前記上部端板が、前記第1の上部端板部分と前記第2の上部端板部分とを接続する端板ピンを備え、前記下部端板が、前記第1の下部端板部分と前記第2の下部端板部分とを接続する端板ピンを備える、請求項1に記載の椎間インプラント。
- 椎間インプラントであって、
上部端板であって、
前部勾配面及び後部勾配面を備える第1の上部端板部分、
前部勾配面及び後部勾配面を備える第2の上部端板部分、ならびに
前記第1の上部端板部分と前記第2の上部端板部分とを接続する端板ピン、を備える、上部端板と、
下部端板であって、
前部勾配面及び後部勾配面を備える第1の下部端板部分、
前部勾配面及び後部勾配面を備える第2の下部端板部分、ならびに
前記第1の下部端板部分と前記第2の下部端板部分とを接続する端板ピン、を備える、下部端板と、
前記上部端板と前記下部端板との間に配置された前部傾斜アクチュエータアセンブリであって、
一対の前部高さアクチュエータであって、前記前部高さアクチュエータが各々、前記上部端板及び前記下部端板とそれぞれ係合している向かい合った勾配面を備える、前部高さアクチュエータ、ならびに
楔形であり、前記一対の前部高さアクチュエータの間に配置され、前記一対の前部高さアクチュエータと移動係合している前部幅アクチュエータであって、前記一対の前部高さアクチュエータを水平に押し開くように動作可能である、前部幅アクチュエータ、を備える、前部傾斜アクチュエータアセンブリと、
後部傾斜アクチュエータアセンブリであって、
一対の後部高さアクチュエータであって、前記後部高さアクチュエータが各々、前記上部端板及び前記下部端板とそれぞれ係合している向かい合った勾配面を備える、後部高さアクチュエータ、ならびに
前記一対の後部高さアクチュエータの間に配置され、前記一対の後部高さアクチュエータと移動係合している前部幅アクチュエータであって、前記一対の前部高さアクチュエータを水平に押し開くように動作可能である、後部幅アクチュエータ、を備える、後部傾斜アクチュエータアセンブリと、を備え、
前記椎間インプラントが、第1の幅及び第1の高さを有する折り畳み構成から、第2の幅を有する水平に拡張された構成までまず移行し、次いで、第2の高さを有する垂直に拡張された構成まで移行するように構成される椎間インプラント。 - 一対のねじ式係止スクリューであって、それぞれが、前記前部高さアクチュエータのうちの対応する1つにおける開口部を通って延在し、前記前部高さアクチュエータのうちの対応する1つに係合する、一対のねじ式係止スクリューをさらに備え、前記一対のねじ式係止スクリューが、前記前部高さアクチュエータ及び前記後部高さアクチュエータを互いの近くに収縮するように移動させて、よって、前記上部端板及び前記下部端板を反対方向に垂直に外側へと押しやるように動作可能である、請求項13に記載の椎間インプラント。
- 前記前部幅アクチュエータが、前記前部幅アクチュエータを前記後部幅アクチュエータに向かって引くように動作可能な器具に係合するように構成された、前記後部幅アクチュエータに面する中央開口部を備える、請求項13に記載の椎間インプラント。
- 前記前部傾斜アクチュエータアセンブリが、一端が前記前部高さアクチュエータのうちの1つの中に保持され、反対端が前記前部幅アクチュエータ内の前部停止ピントラック内に配置された、前部停止ピンをさらに備え、前記前部停止ピンが、前記前部幅アクチュエータの移動を制限するように動作可能であり、前記後部傾斜アクチュエータアセンブリが、一端が後部幅アクチュエータ内に保持され、反対端が前記後部高さアクチュエータのうちの1つにおける後部停止ピントラック内に配置された、後部停止ピンをさらに備え、前記後部停止ピンが、前記後部幅アクチュエータの移動を制限するように動作可能である、請求項13に記載の椎間インプラント。
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