JPH10508766A - 円錐状腹側融合ケージとその植え込み方法 - Google Patents
円錐状腹側融合ケージとその植え込み方法Info
- Publication number
- JPH10508766A JPH10508766A JP8510239A JP51023996A JPH10508766A JP H10508766 A JPH10508766 A JP H10508766A JP 8510239 A JP8510239 A JP 8510239A JP 51023996 A JP51023996 A JP 51023996A JP H10508766 A JPH10508766 A JP H10508766A
- Authority
- JP
- Japan
- Prior art keywords
- fusion cage
- cage
- fusion
- ventral
- conical
- 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.)
- Pending
Links
Classifications
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- A61F2/446—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 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
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- A61B17/8875—Screwdrivers, spanners or wrenches
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Landscapes
- Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであっ て、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さな直径を有し、 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にするために 丸い形状をしていることを特徴とする融合ケージ。 2. 前記円錐状のケージ本体が、円錐状外面と、該円錐状外面に形成された少 なくとも1つの縦溝とを有することを特徴とする請求項1記載の融合ケージ。 3. 前記円錐状のケージ本体において、前記縦溝が前記先端部から前記基端部 に向けて延びていることを特徴とする請求項2記載の融合ケージ。 4. 前記円錐状の外面に、少なくとも3つの縦溝が形成されていることを特徴 とする請求項2記載の融合ケージ。 5. 前記3つの縦溝が、前記先端部のまわりに等間隔で配置されていることを 特徴とする請求項4記載の融合ケージ。 6. 前記縦溝が、丸い形状をした前記先端部に付加的に形成されていることを 特徴とする請求項2記載の融合ケージ。 7. 前記3つの縦溝が、丸い形状をした前記先端部に付加的に形成されている ことを特徴とする請求項4記載の融合ケージ。 8. 前記円錐状のケージ本体が、円錐状の外面と、該円錐状の外面に形成され たねじ山とを有することを特徴とする請求項1記載の融合ケージ。 9. 前記ねじ山に形成された少なくとも1つの縦溝を具備することを特徴とす る請求項8記載の融合ケージ。 10. 前記円錐状のケージ本体が、円錐状の外面と内部空所とを有し、かつ、 前記円錐状の外面と前記内部空所とを連通する複数の孔が、前記円錐状のケー ジ本体を貫通して形成されていることを特徴とする請求項8記載の融合ケージ。 11. 前記円錐状のケージ本体が、正確な円形の円錐であることを特徴とする 請求項1記載の融合ケージ。 12. 背側部と腹側部とを有し、前記背側部間に背側間隔が画定され、腹側部 間に腹側間隔が画定された2つの離間した椎骨構造の間における融合を促進する ための融合ケージであって、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記腹側間隔の高さを前記背側間隔の高さよりも大きく維持するために、前記 先端部が前記椎骨構造の背側部の間の背側間隔に配置可能であり、かつ、前記基 端部が前記椎骨構造の腹側部の間の腹側空間に配置可能であり、 前記円錐状のケージ本体が、円錐状の外面と、前記ケージ本体が腹側空間から 背側空間に向けて挿入されるときに前記椎骨構造に係合するように前記円錐状の 外面に形成されたねじ山とを有することを特徴とする融合ケージ。 13. 椎骨構造の間における腹側空間から背側空間に向けた融合ケージの挿入 を容易にするために、前記先端部が丸い形状をしていることを特徴とする請求項 12記載の融合ケージ。 14. 少なくとも1つの縦溝が、前記ねじ山に形成されていることを特徴とす る請求項12記載の融合ケージ。 15. 前記縦溝が、前記先端部から前記基端部に向けて延びていることを特徴 とする請求項14記載の融合ケージ。 16. 少なくとも3つの縦溝が、前記ねじ山に形成されていることを特徴とす る請求項12記載の融合ケージ。 17. 前記3つの縦溝が、前記先端部のまわりに等間隔を空けて配置されてい ることを特徴とする請求項16記載の融合ケージ。 18. 少なくとも1つの縦溝が、前記丸い形状をした先端部に形成されている ことを特徴とする請求項13記載の融合ケージ。 19. 3つの縦溝が、前記丸い形状をした先端部に形成されていることを特徴 とする請求項18記載の融合ケージ。 20. 前記円錐状のケージ本体が、内部空所と、前記円錐状の外面を前記内部 空所と連通する、前記円錐状のケージ本体を貫通して形成された複数の孔とを具 備することを特徴とする請求項12記載の融合ケージ。 21. 前記円錐状のケージ本体が、正確な円形の円錐であることを特徴とする 請求項12記載の融合ケージ。 22. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記円錐状のケージ本体が、円錐状の外面と、該円錐状の外面に形成された少 なくとも1つの縦溝とを有することを特徴とする融合ケージ。 23. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために、丸い形状をしていることを特徴とする請求項22記載の融合ケージ。 24. 前記円錐状のケージ本体において、前記縦溝が前記先端部から前記基端 部に向かって延びていることを特徴とする請求項22記載の融合ケージ。 25. 少なくとも3つの縦溝が、前記円錐状の外面に形成されていることを特 徴とする請求項22記載の融合ケージ。 26. 3つの縦溝が、前記先端部のまわりに等間隔で配置されていることを特 徴とする請求項22記載の融合ケージ。 27. 1つの縦溝が、前記丸い形状の先端部に形成されていることを特徴とす る請求項23記載の融合ケージ。 28. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために丸い形状を有し、 前記3つの縦溝が、該丸い形状をした先端部に付加的に形成されていることを 特徴とする請求項25記載の融合ケージ。 29. ねじ山が、前記円錐状の外面に形成されていることを特徴とする請求項 22記載の融合ケージ。 30. 前記少なくとも1つの縦溝が、ねじ山に形成されていることを特徴とす る請求項29記載の融合ケージ。 31. 前記円錐状のケージ本体が、内部空所と、前記円錐状の外面を前記内部 空所と連通する、前記円錐状のケージ本体を貫通して形成された複数の孔とを具 備することを特徴とする請求項22記載の融合ケージ。 32. 椎骨構造間の融合を促進するための腹側の融合ケージであって、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、腹側からのアプローチによる椎骨構造間への最初の挿入のため に、前記基端部の直径よりも小さい直径を有し、 前記円錐状のケージ本体は、円錐状の外面と、該円錐状の外面に形成された複 数巻のねじ山と、前記ねじ山の少なくとも1つに形成された縦溝とを有し、 前記円錐状のケージ本体が、内部空所を有し、 前記円錐状の外面と前記内部空所とを連通する複数の孔が、前記円錐状のケー ジ本体を貫通して形成されていることを特徴とする融合ケージ。 33. 前記先端部が、椎骨構造間における腹側位置から背側位置に向けての挿 入を容易にするために丸い形状に形成されていることを特徴とする請求項32記 載の融合ケージ。 34. 前記円錐状のケージ本体において、前記縦溝が前記先端部から前記基端 部に向けて延びていることを特徴とする請求項32記載の融合ケージ。 35. 少なくとも3つの縦溝が、少なくとも1つの前記ねじ山に形成されてい ることを特徴とする請求項32記載の融合ケージ。 36. 3つの縦溝が、前記先端部の回りに等間隔で配置されていることを特徴 とする請求項32記載の融合ケージ。 37. 前記縦溝が、前記丸い形状をした先端部に付加的に形成されていること を特徴とする請求項33記載の融合ケージ。 38. 3つの縦溝が、前記丸い形状をした先端部に形成されていることを特徴 とする請求項33記載の融合ケージ。 39. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記円錐状のケージ本体が、円錐状の外面と、該円錐状の外面に形成されたね じ山とを具備することを特徴とする融合ケージ。 40. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために丸い形状をしていることを特徴とする請求項39記載の融合ケージ。 41. 前記ねじ山に形成された少なくとも1つの縦溝を有することを特徴とす る請求項39記載の融合ケージ。 42. 前記縦溝が、前記先端部から前記基端部に向けて延びていることを特徴 とする請求項41記載の融合ケージ。 43. 前記ねじ山に少なくとも3つの縦溝が形成されていることを特徴とする 請求項39記載の融合ケージ。 44. 前記3つの縦溝が前記先端部のまわりに等間隔で配置されていることを 特徴とする請求項43記載の融合ケージ。 45. 少なくとも1つの縦溝が、前記の丸い形状をした先端部に形成されてい ることを特徴とする請求項40記載の融合ケージ。 46. 3つの縦溝が、前記の丸い形状をした先端部に形成されていることを特 徴とする請求項40記載の融合ケージ。 47. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有するケージ本体を具備し、 該ケージ本体が、外面と、1つまたはそれ以上の骨構造内における融合ケージ の挿入を容易にするために前記外面に形成された少なくとも1つの縦溝とを有す ることを特徴とする融合ケージ。 48. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために丸い形状であることを特徴とする請求項47記載の融合ケージ。 49. 前記縦溝が、先端部から基端部に向けて延びていることを特徴とする請 求項47記載の融合ケージ。 50. 少なくとも3つの縦溝が、前記外面に形成されていることを特徴とする 請求項47記載の融合ケージ。 51. 3つの縦溝が、前記先端部のまわりに等間隔で配置されていることを特 徴とする請求項50記載の融合ケージ。 52. 前記縦溝が、前記の丸い形状をした先端部に付加的に形成されているこ とを特徴とする請求項48記載の融合ケージ。 53. 前記ケージ本体が、前記外面に形成されたねじ山を有していることを特 徴とする請求項47記載の融合ケージ。 54. 前記縦溝がねじ山に形成されていることを特徴とする請求項53記載の 融合ケージ。 55. 請求項1記載の融合ケージと挿入工具との組み合わせであって、 該融合ケージと前記挿入工具とが、 内部空所と連通する開口を有する前記基端部と、 前記内部空所を閉鎖するために前記開口内に取り付けられ得るエンドキャップ とを具備し、 前記基端部が、少なくとも1つの挿入工具受入くぼみを有し、 前記エンドキャップが、挿入工具受入ねじ孔を有し、 前記挿入工具が、前記くぼみ内に受け入れられる舌部と、前記ねじ孔内に受け 入れられるねじ付き軸とを有するとともに、 前記挿入工具が、前記融合ケージを1つまたはそれ以上の骨構造に対して挿入 するために、前記融合ケージと係合されることを特徴とする融合ケージと挿入工 具との組み合わせ。 56. 前記孔が、前記内部空所と1つまたはそれ以上の骨構造との間の連通量 を増加させるように細長く形成されていることを特徴とする請求項10記載の融 合ケージ。 57. 背側部と腹側部とを有し、前記背側部間に背側間隔が画定され、腹側部 間に腹側間隔が画定され、前記腹側間隔の高さが前記背側間隔の高さと同じかそ れより大きい、2つの離間した椎骨構造を一体に融合する方法であって、 椎骨構造に前記腹側部からアクセスするアクセスステップと、 基端部と先端部とを有する円錐状のケージ本体を有し、前記先端部が前記基端 部の直径よりも小さい直径を有し、前記背側空間の高さに対する前記腹側空間の 高さを維持するために、前記先端部が、前記椎骨構造の前記背側部間の前記背側 空間に配置可能であり、前記基端部が、前記椎骨構造の前記腹側部間の前記腹側 空間に配置可能であり、前記円錐状のケージ本体が、円錐状の外面と、該円錐状 の外面に形成されたねじ山とを有する融合ケージを選択する選択ステップと、 前記椎骨構造の前記腹側部に隣接して前記融合ケージ本体を位置決めする位置 決めステップと、 前記融合ケージを (1) 前記先端部を前記椎骨構造の腹側部に隣接させた位置から、 (2) 前記先端部を前記背側部に隣接させかつ前記基端部を前記椎体構造の前 記腹側部に隣接させた位置まで 移動させることにより、前記椎骨構造間に、前記融合ケージを挿入する挿入ステ ップとを具備することを特徴とする方法。 58. 前記挿入ステップが、前記融合ケージを所定位置に維持しかつ前記椎骨 構造を安定化させるために、前記外面の一部として形成された前記ねじ山が前記 椎骨構造に係合するように、前記融合ケージを回転させることからなることを特 徴とする請求項57記載の方法。 59. 前記挿入ステップが、前記ねじ山が、前記椎骨構造内に相補的なねじを ねじ切りするように融合ケージを回転させることからなることを特徴とする請求 項57記載の方法。 60. 患者の脊柱の所望の弯曲の達成方法であって、 椎骨構造に腹側からアクセスするアクセスステップと、 腹側からの処置を用いて椎骨構造の腹側部に隣接して、円錐状の融合ケージを 位置決めする位置決めステップと、 所望の弯曲を回復するために、前記椎骨構造の腹側から背側に向かう方向に、 隣接する椎骨構造の間の椎間板空間内に、前記の円錐状の融合ケージを推進する 推進ステップとを具備することを特徴とする方法。 61. 前記位置決めステップの前に、所望の弯曲を達成するために適当な大き さの円錐状の融合ケージを選択する選択ステップを具備することを特徴とする請 求項60記載の融合ケージ。 62. 前記位置決めステップの前に、融合ケージについての前記椎骨構造を安 定させるべく、腹側の縦の靭帯を伸ばすために、適当な大きさの円錐状の融合ケ ージを選択する選択ステップを具備することを特徴とする請求項60記載の方法 。 63. 前記孔の大きさが先端部から基端部に向かって増大することを特徴とす る請求項10記載の融合ケージ。 64. (1) 背側部と腹側部とを有し、前記背側部間に背側間隔が画定され、腹 側部間に腹側間隔が画定された2つの離間した椎骨構造の間の融合を促進するた めの、そして、 (2) 腹側からのアプローチを用いて融合ケージを腹側から背側に向けて推進する ことにより、融合ケージが植え込まれるときに、所望の弯曲を達成するための融 合ケージであって、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記円錐状のケージ本体が、前記腹側部に隣接して配置される最初の位置から 、前記基端部が前記腹側空間に配置され前記先端部が前記背側空間に配置される 最終位置まで、腹側からのアプローチにより推進されたときに、前記先端部が、 前記椎骨構造の前記背側部の間の前記背側空間に配置可能であり、かつ、前記基 端部が、前記椎骨構造の前記腹側部の間の前記腹側空間に配置可能であることを 特徴とする融合ケージ。 65. 前記円錐状のケージ本体が、円錐状の外面と、該ケージ本体が前記腹側 空間から前記背側空間に向けて挿入されるときに、椎骨構造に係合するように、 該円錐状の外面に形成されたねじ山とを有することを特徴とする請求項64記載 の融合ケージ。 66. 前記ケージ本体の前記先端部が、前記椎骨構造の間の挿入を容易にする ために丸い形をしていることを特徴とする請求項65記載の融合ケージ。 67. 椎骨構造にアクセスし、かつ、融合ケージを挿入するために、腹腔鏡検 査式の処置を用いることを特徴とする請求項57記載の方法。 68. 前記挿入ステップが、前記腹側部を前記背側部よりもそらせ、前記椎骨 構造を前記背側部回りに回転させるためのものであることを特徴とする請求項5 7記載の方法。 69. 椎骨構造にアクセスし、かつ、融合ケージを挿入するために、腹腔鏡検 査式の処置を用いることを特徴とする請求項60記載の方法。 70. 前記推進ステップが、前記椎骨構造の前記腹側部を前記背側部よりもそ らせ、かつ、前記椎骨構造を前記背側部回りに回転させるためのものであること を特徴とする請求項60記載の方法。 71. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有するケージ本体を具備し、前記先端部が、前記基端部の 直径よりも小さい直径を有し、かつ、 前記先端部が、1またはそれ以上の骨構造に対する挿入を容易にするために丸 い形状をしていることを特徴とする融合ケージ。 72. 前記ケージ本体が、外面と、該外面に形成された少なくとも1つの縦溝 とを有することを特徴とする請求項71記載の融合ケージ。 73. 前記縦溝が前記先端部から前記基端部に向けて延びている前記ケージ本 体を有することを特徴とする請求項72記載の融合ケージ。 74. 少なくとも3つの縦溝が、前記外面に形成されていることを特徴とする 請求項72記載の融合ケージ。 75. 少なくとも1つの縦溝が、前記の丸い形状をした先端部に形成されてい ることを特徴とする請求項71記載の融合ケージ。 76. 3つの縦溝が、前記の丸い形状をした先端部に形成されていることを特 徴とする請求項71記載の融合ケージ。 77. 前記ケージ本体が、外面と、該外面に形成されたねじ山とを有すること を特徴とする請求項71記載の融合ケージ。 78. 少なくとも1つの縦溝が、前記ねじ山に形成されていることを特徴とす る請求項77記載の融合ケージ。 79. 背側部と腹側部とを有し、背側空間が前記背側部の間に画定され、腹側 空間が前記腹側部の間に画定された2つの離間した椎骨構造間との融合を促進す るための融合ケージであって、 基端部と先端部とを有し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記腹側空間の高さを前記背側空間の高さよりも大きく維持するために、前記 先端部が、前記椎骨構造の前記背側部の間の前記背側空間に配置可能であり、か つ、前記基端部が、前記椎骨構造の前記腹側部の間の前記腹側空間に配置可能で あり、 前記ケージ本体が、外面と、前記ケージ本体が前記腹側空間から前記背側空間 に向けて挿入されるときに前記椎骨構造に係合するように前記外面に形成された ねじ山とを有することを特徴とする融合ケージ。 80. 前記先端部が、前記融合ケージの前記椎骨構造間への前記腹側空間から 前記背側空間に向けた挿入を容易にするために丸い形状をしていることを特徴と する請求項79記載の融合ケージ。 81. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有するケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記ケージ本体が、外面と、該外面に形成された少なくとも1つの縦溝とを有 することを特徴とする融合ケージ。 82. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために丸い形状をしていることを特徴とする請求項81記載の融合ケージ。 83. 椎骨構造の間の融合を促進するための融合ケージであって、 基端部と先端部とを有し、 前記先端部が、椎骨構造の間への腹側からのアプローチによる挿入開始のため に、前記基端部の直径よりも小さい直径を有し、 前記ケージ本体が、外面と、該外面に形成された複数巻のねじ山とを有し、 前記ケージ本体が内部空所を有し、 前記外面を前記内部空所と連通する複数の孔が前記ケージ本体を貫通して形成 されていることを特徴とする融合ケージ。 84. 縦溝が、少なくとの1巻の前記ねじ山に形成されていることを特徴とす る請求項83記載の融合ケージ。 85. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有するケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記ケージ本体が、外面と、該外面に形成されたねじ山とを有することを特徴 とする融合ケージ。 86. 前記ケージ本体が、円錐状であることを特徴とする請求項85記載の融 合ケージ。 87. 1つまたはそれ以上の骨構造との融合を促進するための融合ケージであ って、 基端部と先端部とを有するケージ本体を具備し、 該ケージ本体が、1つまたはそれ以上の骨構造内への前記融合ケージの挿入を 容易にするために、前記先端部に形成された少なくとも1つの縦溝を有すること を特徴とする融合ケージ。 88. 前記先端部が、1つまたはそれ以上の骨構造に対する挿入を容易にする ために丸い形状をしていることを特徴とする請求項87記載の融合ケージ。 89. 前記縦溝が、前記先端部から前記基端部に向けて延びていることを特徴 とする請求項87記載の融合ケージ。 90. 背側部と腹側部とを有し、背側空間が前記背側部間に画定され、かつ、 腹側空間が前記腹側部間に画定され、前記腹側空間の高さが前記背側空間の高さ と同じかそれよりも大きい、2つの離間した椎骨構造を一体に融合するための方 法であって、 腹側部から前記椎骨構造にアクセスするアクセスステップと、 基端部と先端部とを有し、前記先端部が前記基端部よりも小さい直径を有し、 前記背側空間の高さに対する前記腹側空間の高さを維持するために、前記先端部 が前記椎骨構造の背側部間の背側空間に配置可能でありかつ前記基端部が前記椎 骨構造の前記腹側部間の腹側空間に配置可能であるケージ本体を有し、かつ、該 円錐状のケージ本体が外面と該外面に形成されたねじ山とを有する融合ケージを 選択する選択ステップと、 前記融合ケージ本体を前記椎骨構造の腹側部に隣接して位置決めする位置決め ステップと、 前記融合ケージを、 (1) 前記先端部を前記椎骨構造の前記腹側部に近接した位置から、 (2) 前記先端部を前記背側部に近接させ、かつ、前記基端部を前記椎体構造の 前記腹側部に近接させた位置まで 移動させることにより、前記椎骨構造間に該融合ケージを挿入する挿入ステップ とを具備することを特徴とする方法。 91. (1) 背側部と腹側部とを有し、背側空間が前記背側部間に画定され、腹 側空間が前記腹側部間に画定された2つの離間した椎骨構造間の融合を促進する ための、そして、 (2) 融合ケージが、腹側からのアプローチにより、前記腹側部から前記背側部 に向けて推進することにより植え込まれるときに、所望の弯曲を達成するための 融合ケージであって、 基端部と先端部とを有する円錐状のケージ本体を具備し、 前記先端部が、前記基端部の直径よりも小さい直径を有し、 前記円錐状のケージ本体が、腹側からのアプローチにより、前記先端部が前記 腹側部に隣接配置される最初の位置から、前記基端部が前記腹側空間に配置され かつ前記先端部が前記背側空間に配置される最終位置まで推進されるときに、前 記先端部が、前記椎骨構造の前記背側部間の前記背側空間に配置可能であり、か つ、前記基端部が、前記椎骨構造の前記腹側部間の前記腹側空間に配置可能であ ることを特徴とする融合ケージ。 92. 基端部と先端部とを有するケージ本体を具備し、 前記先端部が前記基端部の直径よりも小さい直径を有し、 前記腹側空間の高さを前記背側空間の高さよりも大きく維持するために、前記 先端部が、前記椎骨構造の前記背側部の間の背側空間に配置可能であり、かつ、 前記基端部が、前記椎骨構造の前記腹側部の間の腹側空間に配置可能であること を特徴とする請求項91記載の融合ケージ。
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PCT/US1995/011281 WO1996008205A1 (en) | 1994-09-15 | 1995-09-08 | Conically-shaped anterior fusion cage and method of implantation |
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-
1995
- 1995-09-08 EP EP95931724A patent/EP0781113B1/en not_active Expired - Lifetime
- 1995-09-08 ES ES95931724T patent/ES2171193T3/es not_active Expired - Lifetime
- 1995-09-08 JP JP8510239A patent/JPH10508766A/ja active Pending
- 1995-09-08 AU AU35053/95A patent/AU696997B2/en not_active Ceased
- 1995-09-08 WO PCT/US1995/011281 patent/WO1996008205A1/en active IP Right Grant
- 1995-09-08 DE DE69526094T patent/DE69526094T2/de not_active Expired - Lifetime
- 1995-09-08 CA CA002199637A patent/CA2199637C/en not_active Expired - Fee Related
-
1997
- 1997-01-15 US US08/783,790 patent/US5906616A/en not_active Expired - Lifetime
-
2003
- 2003-01-24 US US10/350,834 patent/US20030114854A1/en not_active Abandoned
-
2005
- 2005-01-28 JP JP2005022008A patent/JP4188922B2/ja not_active Expired - Fee Related
- 2005-07-20 US US11/185,418 patent/US7608105B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010057527A (ja) * | 2008-09-01 | 2010-03-18 | Japan Medical Materials Corp | ブローチ及びブローチの製造方法 |
Also Published As
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EP0781113A4 (en) | 1997-12-29 |
US5906616A (en) | 1999-05-25 |
US20050256575A1 (en) | 2005-11-17 |
US20030114854A1 (en) | 2003-06-19 |
CA2199637A1 (en) | 1996-03-21 |
JP2005118596A (ja) | 2005-05-12 |
AU3505395A (en) | 1996-03-29 |
JP4188922B2 (ja) | 2008-12-03 |
DE69526094T2 (de) | 2002-11-21 |
US7608105B2 (en) | 2009-10-27 |
CA2199637C (en) | 2007-05-01 |
AU696997B2 (en) | 1998-09-24 |
WO1996008205A1 (en) | 1996-03-21 |
DE69526094D1 (de) | 2002-05-02 |
ES2171193T3 (es) | 2002-09-01 |
EP0781113A1 (en) | 1997-07-02 |
EP0781113B1 (en) | 2002-03-27 |
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