JP6161836B2 - 拡張可能な脊椎椎体間固定デバイス - Google Patents
拡張可能な脊椎椎体間固定デバイス 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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- 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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- 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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- 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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- 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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- 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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- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4627—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
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Description
10 拡張可能な脊椎椎体間固定デバイス
12 上終板
12a 上側外面
12b 下突出部
14 下終板
14a 下側外面
14b レール
16 挿入物
18 エレベータ
20 ハブ
22、24 側面
26、28 横断面
30 下面
38 開口部
40、42 側壁
40a、42a 内面
44、46 端壁
44a 内面
46a リップ部
48 空洞
50 挿入物通路
50a 通路部分
54 下側内側支持面
56 ネジ山付き接続開口部
58 穴
60 開口部
100 挿入器
100a 遠位端
100b 近位端
101 フレーム
102 トリガーアクチュエータ
104 トラック
106 外側細長トラックカバー
107 バネ
108 ガイドピン
110 開口部
112 ネジ山付きつまみ
114 ピン
116 昇降プラットフォーム
116a 傾斜昇降面
116b、116c 傾斜面
116d 昇降プラットフォーム
118 上面
120 下面
124 駆動装置
124c 上面
124d スロット
124e、124f 押さえ面
125 割出し部材
128 グラフトシールド
128a 一端
128b 自由端
132、134 ハンドグリップ
136 拡張バネ
138 枢着部
140 歯車の歯
146 歯車のラック
146a 下面
146b 上面
146c 遠位端
146d 押さえ面
146e ランプ面
146f 上面
148 爪
148a 枢着部
148b 押さえ面
150 駆動スライド
150a 下面
150b 押さえ面
150c 下面
152 圧縮バネ
154 昇降スライド
154a 押さえ面
154b 近位の細長い繋留部分
154c 押さえ面
154d 第2の歯車のラック
156 上側隆起特徴部
156a、156b 押さえ面
158 爪
158a 枢着部
158b 押さえ面
158c ランプ面
160 突出面
162 両側フラグ
162b 両側タブ
163 スロット
164 カム
166 歯車
168 双方向ラチェット機構
170 ノッチ
172 支持体
174 六角フィッティング
200 本体部
202 上面
204 下面
205 基部
206 後方後側近位端
208 前方前側遠位端
208a 傾斜面
212、214 アーム
212a、214a 側面
216 一般的にU字形の開口部
218 表面
218 押さえ面
220 ラッチレセプタクル
222a、222b アーム
224a、224b 係止面
300 細長い、一般的に平坦な本体部
302 上面
304 下面
305 基部
305a 後方に面する表面
306 後方後側近位端
308 前方前側遠位端
308a 傾斜昇降面
310 陥凹部
312、314 アーム
312a、314a 傾斜面
312b、314b 傾斜昇降面
312c、314c 側面
316 開口部
318 ラッチ
320a、320b アーム
322a、322b 係止面
400 挿入器
402 アクチュエータ
404 カートリッジ
406 トラック
407、408 ハンドグリップ
410 フレーム
410a 接合面
410b 近位端
410c 遠位端
410d 支持面
411 操作機構
412 枢動ピン
414 フラグ
416 バネ仕掛けの柔軟なラッチ
418 外側カバー
420 支持体
422 隆起特徴部
Claims (14)
- 脊椎の2つの対向する椎骨体部の間の椎間板内空間内に植え込むための拡張可能な脊椎椎体間固定デバイスであって、
前記脊椎の椎骨体部と接触するように構成されている外面を有する下終板と、
前記脊椎の対向する椎骨体部と接触するように構成されている外面を有する上終板であって、前記下終板および前記上終板は拡張方向で互いに関して移動可能である、上終板と、
前記下終板と前記上終板との間に配設されたエレベータであって、前記エレベータは拡張時に前記上終板の方への第1の方向、および前記上終板から遠ざかる第2の方向で独立した移動を行うように前記拡張可能な脊椎椎体間固定デバイスの拡張の前に捕らわれて保持され、拡張の後に前記上終板と前記エレベータとの間に空間を形成する、エレベータと、
を備えることを特徴とする拡張可能な脊椎椎体間固定デバイス。 - 前記エレベータは、外部器具と接触して前記エレベータを移動するための昇降面を備える請求項1に記載のデバイス。
- 前記昇降面は、複数の接点を備える請求項2に記載のデバイス。
- 前記エレベータは、細長く、一般的に平坦であり、遠位端と近位端、前記上終板に面する上面、および前記下終板に面し、前記下終板によって支持される下面を有する請求項3に記載のデバイス。
- 前記エレベータは、前記遠位端に隣接する昇降面と前記近位端に隣接する昇降面とを備える請求項4に記載のデバイス。
- 前記エレベータは、実質的にU字形の構成形態を備え、一対の対向するアームが前記上面、前記下面、および前記近位端を通る開口部を画成する請求項5に記載のデバイス。
- 前記エレベータは、少なくとも3つの点が接する前記遠位端に隣接する前記昇降面で画成する各アームの前記近位端に隣接する昇降面を備える請求項6に記載のデバイス。
- 前記エレベータの前記昇降面の各々は、前記エレベータの前記下面と連通する傾斜ランプとして形成される請求項7に記載のデバイス。
- 前記下終板は、前記拡張方向に対して横断する方向の前記エレベータの移動を制約し、前記拡張方向の前記エレベータの移動を許す内面を備える請求項2に記載のデバイス。
- 脊椎の2つの対向する椎骨体部の間の椎間板内空間内に植え込むための拡張可能な脊椎椎体間固定デバイスであって、
外面を有し、前記外面は前記椎骨体部、対向する下面、ならびに前記外面および前記下面を貫通する骨移植片開口部のうちの1つと接触するように構成されている、上終板と、
他の椎骨体部および支持内面と接触するように構成されている外面を有する下終板であって、前記下終板は、対向し、相隔てて並ぶ側壁ならびにその中で内部空洞を画成する対向し、相隔てて並ぶ遠位および近位端壁を有し、前記支持内面は前記内部空洞内にあり、
前記上終板は前記内部空洞内に受け入れられ、前記下終板は前記外面および前記支持内面を貫通し、前記内部空洞と連通する骨移植片開口部を有し、前記近位端壁はそれを通して前記内部空洞と連通する通路を画成し、前記下終板は前記対向する椎骨体部の方へ前記上終板に関して拡張方向に移動可能である、下終板と、
前記通路を通り前記内部空洞内に受け入れられる第1の挿入物であって、前記第1の挿入物は前記上終板と接触し、前記上終板を通して前記骨移植片開口部と少なくとも部分的整列し、連通しているその中を通る開口部を有する、第1の挿入物と、
前記下終板の前記支持内面によって支持され、前記第1の挿入物を支持するエレベータであって、前記エレベータは前記第1の挿入物を、それによって前記上終板を、前記下終板から遠ざかる方向に移動し、それによって前記拡張可能な脊椎椎体間固定デバイスを拡張させるために前記拡張方向に沿って第1の方向、および前記第1の挿入物と前記エレベータとの間に空間を形成し第2の挿入物を受け入れるために前記拡張可能な脊椎椎体間固定デバイスの拡張後に前記拡張方向に沿って第2の対向する方向に、移動可能である、エレベータと、
を備えることを特徴とする拡張可能な脊椎椎体間固定デバイス。 - 前記エレベータは前記内部空洞内に捕らわれて支持され、前記拡張方向に摺動可能に移動可能であり、前記エレベータは一般的に平坦であり、遠位端と近位端、前記遠位端に隣接する昇降面、および前記近位端に隣接する昇降面を有する請求項10に記載のデバイス。
- 前記エレベータは、実質的にU字形の構成形態を備え、一対の対向するアームを備え、
前記エレベータの前記開口部は前記対向するアームによって画成され、前記エレベータの前記近位端を貫通する請求項11に記載のデバイス。 - 前記第1の挿入物は、一般的に平坦であり、遠位端と近位端とを有し、前記第1の挿入物は一対の対向するアームを備える一般的にU字形の構成形態をとり、前記第1の挿入物を通る前記開口部は前記対向するアームによって画成され、前記第1の挿入物の前記近位端を貫通する請求項12に記載のデバイス。
- 前記上終板の前記骨移植片開口部、前記下終板の前記骨移植片開口部、ならびに前記第1の挿入物および前記エレベータを通る前記開口部は、互いに、および前記通路と少なくとも部分的に整列し、連通し、それによって、前記通路から前記拡張可能な脊椎椎体間固定デバイスを通り前記上終板および下終板の前記骨移植片開口部内に入る実質的に遮られない経路を構成する請求項11に記載のデバイス。
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US14/474,555 US9078767B1 (en) | 2014-03-06 | 2014-09-02 | Expandable spinal interbody fusion device |
US14/474,555 | 2014-09-02 | ||
PCT/US2015/016557 WO2015134195A1 (en) | 2014-03-06 | 2015-02-19 | Expandable spinal interbody fusion device |
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