JP2014529310A - 椎体間スペーサ - Google Patents
椎体間スペーサ Download PDFInfo
- Publication number
- JP2014529310A JP2014529310A JP2014520197A JP2014520197A JP2014529310A JP 2014529310 A JP2014529310 A JP 2014529310A JP 2014520197 A JP2014520197 A JP 2014520197A JP 2014520197 A JP2014520197 A JP 2014520197A JP 2014529310 A JP2014529310 A JP 2014529310A
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- JP
- Japan
- Prior art keywords
- radius
- leading end
- end portion
- extending
- lower bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 125000006850 spacer group Chemical group 0.000 title 1
- DPUPESLAFGZQOY-UHFFFAOYSA-N C=C(CC1)CC1=C Chemical compound C=C(CC1)CC1=C DPUPESLAFGZQOY-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—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
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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
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—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
- 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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- A61F2/02—Prostheses implantable into the body
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- A61F2/4611—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
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Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
21 長手方向軸
22 上支承面
24 下支承面
25 空洞
26 先導端部分
28 追従端
30 第1側方側壁
32、34 突起
36 第2側方側壁
40 放射線不透過性マーカー
42、44 スロット
46、48 穴
50 受口
52 放射線不透過性マーカー
100 挿入器
102 保持部材
104 ハンドル
106 ロック部材
108、110 指部
112 長手方向通路
114、116 上下の指部
120 挿入器
122 外管
123 ハンドル
124 遠位保持構造
126 内ロック部材
128、130 指部
132 サムホイール
134 端部材
220、220’ 椎体間スペーサ
320、320’ 椎体間スペーサ
322 側壁の突起
324 上下支承面の突起
A1 脊柱前弯角度
A2 スロットの拡がり角度
B1、B2 接線角度
M 中間長さ平面
H1、H2、H3 高さ
L1、 長さ
W1、W2 幅
R1、R2、R3、R4、R5、R6、R7 曲率半径
S1 弓状面
V1、V2 椎骨
D 円板空間
P 後方進入
A 前方進入
G グラフト材料
Claims (25)
- 椎骨の間に配置するための椎体間スペーサであって、
細長い中央本体部分であって、先導端部分と、前記先導端部分とは反対側の追従端と、中心長手方向軸に沿って前記先導端部分から前記追従端まで延びて当該本体部分の長さを画定している一対の互いに反対側の側方側壁と、を有していて、前記中心長手方向軸に直交である中間長さ平面を画定している細長い中央本体部分と、
上椎骨の終板に当てて設置するための、前記長手方向軸に沿って前記先導端部分と前記追従端の間を延びる上支承面、及び、
下椎骨の終板に当てて設置するための、前記長手方向軸に沿って前記先導端部分と前記追従端の間を延びる反対側の下支承面であって、前記互いに反対側の上下支承面は、前記中間長さ平面から前記先導端部分寄りにオフセットしている第1場所に当該支承面間の最大高さを画定している、上支承面及び下支承面と、を備えている椎体間スペーサにおいて、
前記上下支承面のどちらかに直交である向きに視たときに、前記側方側壁は、それぞれ、前記先導端部分から前記追従端まで延びる凸状に湾曲した外形であって前記中間長さ平面から前記先導端部分寄りにオフセットしている第2場所に前記本体部分の前記側方側壁間の最大幅を画定している凸状に湾曲した外形を、画定しており、
前記中心長手方向軸に沿って覗く方向に視たときに、前記側方側壁は、それぞれ、前記上支承面から前記下支承面まで延びる直線状の外形を画定している、椎体間スペーサ。 - 前記側方側壁は、それぞれ、その中に細長いスロットを含んでおり、当該細長いスロットは、前記追従端から前記中間長さ平面に隣接して位置している当該スロットの反対側の端まで延びている、請求項1に記載の椎体間スペーサ。
- 前記細長いスロットは、それぞれ、前記追従端から前記反対側の端に向かって増加している高さを含んでいる、請求項2に記載の椎体間スペーサ。
- 前記細長いスロットは、前記追従端から前記先導端部分に向かって延びる方向に互いから離れるように且つ前記長手方向軸から離れるように拡がっている、請求項3に記載の椎体間スペーサ。
- 前記中央本体部分は、前記上下支承面の間を延びていて当該上下支承面のそれぞれに開口している空洞を画定している、請求項1に記載の椎体間スペーサ。
- 前記上支承面と前記下支承面は、それぞれ、そこから外向きに伸びる一連の突起であって前記長手方向軸を実質的に横断して延びていて前記先導端部分から前記追従端まで長手方向に互いから離間されている一連の突起、を含んでいる、請求項1に記載の椎体間スペーサ。
- 前記突起は、それぞれ、前記側方側壁間を延びる切頭形の山を有しており、前記山は、それぞれ、第1半径を有する第1の弧によって画定されており、前記上下支承面は、それぞれ、前記側方側壁間を延びていて、それぞれ、第2半径を有する第2の弧によって画定されており、前記第2半径は前記第1半径より実質的に大きい、請求項6に記載の椎体間スペーサ。
- それぞれの突起の互いに反対側の端は、前記本体部分の前記中心長手方向軸周りの回転をやり易くするべく、前記側方側壁のうちの隣接する一方の側方側壁から前記突起の前記山まで丸みが付けられている、請求項7に記載の椎体間スペーサ。
- 前記上下支承面の少なくとも一方の支承面の前記突起の前記切頭形の山は、更に、第3半径を有する第3の弧が前記先導端部分から前記追従端まで延びているものとして当該第3の弧上に在り、
前記上下支承面の少なくとも一方の支承面は、更に、第4半径を有する第4の弧が前記先導端部分から前記追従端まで延びているものとして当該第4の弧上に在り、
前記切頭形の山は、前記上下支承面と前記先導端部分との接合部から前記追従端寄りにオフセットしている場所に前記本体部分の最大高さを画定している、請求項7に記載の椎体間スペーサ。 - 前記側方側壁のそれぞれの前記凸状に湾曲した外形は、第1半径を有する第1の弧が前記追従端から前記第2場所まで延びているものとして当該第1の弧によって画定されており、前記側方側壁のそれぞれの前記凸状に湾曲した外形は、第2半径を有する第2の弧が前記第2場所から前記先導端部分まで延びているものとして当該第2の弧によって画定されており、前記第1半径は前記第2半径より実質的に大きく、よって、前記側方側壁は前記先導端部分に向かって集束している、請求項1に記載の椎体間スペーサ。
- 前記第1半径は前記第2半径より5乃至11倍大きい範囲にあり、前記側方側壁は、第3半径を有する第3の弧によって画定されている前記先導端部分の鼻部によって互いへ接続されており、前記第2半径は前記第3半径より実質的に大きい、請求項10に記載の椎体間スペーサ。
- 前記鼻部は前記上下支承面を、第4半径を有する第4の弧によって画定されている端面で以って互いへ接続しており、前記第4半径は前記第3半径より実質的に大きい、請求項11に記載の椎体間スペーサ。
- 椎骨の間に配置するための椎体間スペーサにおいて、
細長い中央本体部分であって、先導端部分と、前記先導端部分とは反対側の追従端と、中心長手方向軸に沿って前記先導端部分から前記追従端まで延びて当該本体部分の長さを画定している一対の互いに反対側の側方側壁と、を有していて、前記中心長手方向軸に直交である中間長さ平面を画定している細長い中央本体部分と、
上椎骨の終板に当てて設置するための、前記長手方向軸に沿って前記先導端部分と前記追従端の間を延びる上支承面、及び、
下椎骨の終板に当てて設置するための、前記長手方向に沿って前記先導端部分と前記追従端の間を延びる反対側の下支承面であって、前記互いに反対側の上下支承面は、前記中間長さ平面から前記先導端部分寄りにオフセットしている第1場所に当該上下支承面間の最大高さを画定している、上支承面及び下支承面と、を備えており、
前記上支承面と前記下支承面は、それぞれ、そこから外向きに伸びる一連の突起であって1つ1つは前記長手方向軸を実質的に横断して延びていて前記先導端部分から前記追従端まで長手方向に互いから離間されている一連の突起、を含んでおり、
前記突起は、それぞれ、前記側方側壁間を延びる切頭形の山であって第1半径を有する第1の弧によって画定されている切頭形の山を有しており、前記上下支承面は、それぞれ、前記側方側壁間を延びていて、第2半径を有する第2の弧によって画定されており、前記第2半径は前記第1半径より実質的に大きい、椎体間スペーサ。 - 前記上支承面と前記下支承面のどちらかに直交である向きに視たときに、前記側方側壁は、それぞれ、前記先導端部分から前記追従端まで延びる凸状に湾曲した外形であって前記中間長さ平面から前記先導端部分寄りにオフセットしている第2場所に前記本体部分の最大幅を画定している凸状に湾曲した外形を、画定しており、
前記中心長手方向軸に沿って覗く方向に視たときに、前記側方側壁は、それぞれ、前記上支承面から前記下支承面まで延びる直線状の外形を画定している、請求項13に記載の椎体間スペーサ。 - それぞれの突起の互いに反対側の端は、前記本体部分の前記中心長手方向軸周りの回転をやり易くするべく、前記側方側壁のうちの隣接する一方の側方側壁から前記突起の前記山まで丸みが付けられている、請求項13に記載の椎体間スペーサ。
- 角部が前記側方側壁のそれぞれを前記上下支承面の各々へ接続しており、前記角部のそれぞれは弓状面によって画定されている、請求項13に記載の椎体間スペーサ。
- 前記弓状面のうちの少なくとも1つの弓状面の、当該弓状面と前記側方側壁との交点の接線は、当該側方側壁への載り具合が、前記弓状面の前記上下支承面の前記各々との交点における接線が前記各支承面に載っている具合よりも、実質的に近接性が強い、請求項16に記載の椎体間スペーサ。
- 前記弓状面は、半径によって画定されている少なくとも1つの弧を含んでいる、請求項16に記載の椎体間スペーサ。
- 前記上下支承面の少なくとも一方の支承面の前記突起の前記切頭形の山は、更に、第3半径を有する第3の弧が前記先導端部分から前記追従端まで延びているものとして当該第3の弧上に在り、
前記上下支承面の少なくとも一方の支承面は、更に、第4半径を有する第4の弧が前記先導端部分から前記追従端まで延びているものとして当該第4の弧上に在り、
前記切頭形の山は、前記上下支承面と前記先導端部分との接合部から前記追従端寄りにオフセットしている場所に前記本体部分の最大高さを画定している、請求項13に記載の椎体間スペーサ。 - 前記側壁は、そこからから外向きに延びる突起を含んでいる、請求項13に記載の椎体間スペーサ。
- 椎骨の間に配置するための椎体間スペーサにおいて、
細長い中央本体部分であって、先導端部分と、前記先導端部分とは反対側の追従端と、中心長手方向軸に沿って前記先導端部分から前記追従端まで延びて当該本体部分の長さを画定している一対の互いに反対側の側方側壁と、を有していて、前記中心長手方向軸に直交である中間長さ平面を画定している細長い中央本体部分と、
上椎骨の終板に当てて設置するための、前記長手方向軸に沿って前記先導端部分と前記追従端の間を延びる上支承面、及び、
下椎骨の終板に当てて設置するための、前記長手方向に沿って前記先導端部分と前記追従端の間を延びる反対側の下支承面であって、前記互いに反対側の上下支承面は、前記追従端と前記先導端部分の間に位置している第1場所に当該支承面間の最大高さを画定している、上支承面及び下支承面と、を備えており、
前記上下支承面のどちらかに直交である向きに視たときに、前記側方側壁は、それぞれ、前記先導端部分から前記追従端まで延びる凸状に湾曲した外形であって前記中間長さ平面から前記先導端部分寄りにオフセットしている第2場所に前記本体部分の最大幅を画定している凸状に湾曲した外形、を画定しており、
前記側方側壁のそれぞれの前記凸状に湾曲した外形は、第1半径を有する第1の弧が前記追従端から前記第2場所まで延びているものとして当該第1の弧によって画定されており、前記側方側壁のそれぞれの前記凸状に湾曲した外形は、更に、第2半径を有する第2の弧が前記第2場所から前記先導端部分まで延びているものとして当該第2の弧によって画定されており、前記第1半径は前記第2半径より実質的に大きく、よって、前記側方側壁は、前記追従端から前記第2場所まで拡がってゆき当該第2場所から前記先導端部分に向かって集束している、椎体間スペーサ。 - 前記中心長手方向軸に沿って覗く方向に視たときに、前記側方側壁は、それぞれ、前記上支承面から前記下支承面まで延びる直線状の外形を画定しており、
前記第1半径は前記第2半径より5乃至11倍大きい範囲にあり、前記側方側壁は、第3半径を有する第3の弧によって画定されている前記先導端部分の鼻部で以って互いへ接続されており、前記第2半径は前記第3半径より実質的に大きく、
前記鼻部は、前記上下支承面を、第4半径を有する第4の弧によって画定されている端面で以って互いへ接続しており、前記第4半径は前記第3半径より実質的に大きく、
前記中央本体部分は、前記上下支承面の間を延びていて当該上下支承面のそれぞれに開口している空洞を画定している、請求項21に記載の椎体間スペーサ。 - 前記上支承面と前記下支承面の少なくとも一方は、そこから外向きに延びる一連の突起であって1つ1つは前記長手方向軸を実質的に横断して延びていて前記先導端部分から前記追従端まで長手方向に互いから離間されている一連の突起、を含んでいる、請求項21に記載の椎体間スペーサ。
- 前記側方側壁の少なくとも一方の側方側壁は、突起を含んでいる、請求項21に記載の椎体間スペーサ。
- 前記上支承面と前記下支承面の少なくとも一方は、そこから外向きに伸びる一連の突起であって1つ1つは前記長手方向軸を実質的に横断して延びていて前記先導端部分から前記追従端まで長手方向に互いから離間されている一連の突起、を含んでおり、
前記側方側壁の少なくとも一方の側方側壁は、突起を含んでいる、請求項21に記載の椎体間スペーサ。
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JP2018023763A (ja) * | 2016-06-27 | 2018-02-15 | グローバス メディカル インコーポレイティッド | 面取り縁を有する椎間スペーサ |
JP2018000549A (ja) * | 2016-07-01 | 2018-01-11 | 日本特殊陶業株式会社 | 椎体スペーサ |
JP2020533118A (ja) * | 2017-09-13 | 2020-11-19 | ジョイマックス ゲーエムベーハー | 椎間インプラント |
JP7560864B2 (ja) | 2017-09-13 | 2024-10-03 | ジョイマックス ゲーエムベーハー | 椎間インプラント |
JP7529234B2 (ja) | 2019-10-04 | 2024-08-06 | ピーティーエル オプコ エルエルシー | 仙腸関節を融合するための同種移植片インプラント |
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JP6122429B2 (ja) | 2017-04-26 |
EP2731524A2 (en) | 2014-05-21 |
WO2013009462A2 (en) | 2013-01-17 |
EP2731524B1 (en) | 2019-03-27 |
US20140031943A1 (en) | 2014-01-30 |
JP6312888B2 (ja) | 2018-04-18 |
JP2017136410A (ja) | 2017-08-10 |
US20130018466A1 (en) | 2013-01-17 |
WO2013009462A3 (en) | 2013-03-07 |
AU2012283068B2 (en) | 2016-12-22 |
EP2731524A4 (en) | 2014-12-17 |
US9095445B2 (en) | 2015-08-04 |
AU2012283068A1 (en) | 2014-01-16 |
CN103648421B (zh) | 2016-10-19 |
CN103648421A (zh) | 2014-03-19 |
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