JP2023016032A - 椎弓板間腰椎椎体間固定術インプラント、椎間板内インプラント、器具、及び方法 - Google Patents
椎弓板間腰椎椎体間固定術インプラント、椎間板内インプラント、器具、及び方法 Download PDFInfo
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- JP2023016032A JP2023016032A JP2022115498A JP2022115498A JP2023016032A JP 2023016032 A JP2023016032 A JP 2023016032A JP 2022115498 A JP2022115498 A JP 2022115498A JP 2022115498 A JP2022115498 A JP 2022115498A JP 2023016032 A JP2023016032 A JP 2023016032A
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- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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- A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
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- A61F2/02—Prostheses implantable into the body
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- A61F2/30—Joints
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- A61F2/30—Joints
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- A61F2/30—Joints
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- A61F2/30—Joints
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- A61F2/4603—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
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- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4632—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using computer-controlled surgery, e.g. robotic surgery
- A61F2002/4633—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using computer-controlled surgery, e.g. robotic surgery for selection of endoprosthetic joints or for pre-operative planning
Abstract
Description
Claims (20)
- 脊椎を安定化させるための整形外科用システムであって、
第1の拡張可能な側方脚部、第2の拡張可能な側方脚部、及び前記第1及び第2の側方脚部の間に枢動可能に接続された第3の中央脚部を含む拡張可能な椎体間インプラントであって、前記第1及び第2の側方脚部が、前弯及び/又は冠状調整を提供するように高さが独立して拡張可能である、椎体間インプラントと、
各々が、ニチノールロッド及び前記ニチノールロッドに固着可能な椎弓根ねじを含む第1及び第2の椎弓根ベースの椎間板内インプラントと、を備える、システム。 - 前記ニチノールロッドが、前記椎弓根ねじと嵌合するように構成されている近位端から骨に係合するように構成されている遠位端まで延在する、請求項1に記載のシステム。
- 前記ニチノールロッドが、自然湾曲状態を有し、前記ニチノールロッドが、展開のために直線状にされ得る、請求項1に記載のシステム。
- 前記ニチノールロッドの前記湾曲状態が、最大180°の弧である、請求項3に記載のシステム。
- 前記ニチノールロッドが、平面状の面を有する多角形の断面を有する、請求項1に記載のシステム。
- 前記ニチノールロッドが、下椎骨の椎弓根を通って、前記下椎骨の椎体を通って、椎間板腔を通って、上椎骨の椎体内に挿入されるように構成されている、請求項1に記載のシステム。
- 前記ニチノールロッドの近位端が、前記椎弓根ねじの内側のねじ山付き部分と嵌合するように構成されている外側のねじ山付き部分を含む、請求項1に記載のシステム。
- 前記椎弓根ねじが、多軸チューリップヘッドによって係合されるように構成されているねじ山付き又は粗面化テクスチャを有するねじ頭を含む、請求項1に記載のシステム。
- 前記拡張可能な椎体間インプラントの前記第1及び第2の側方脚部が、前記インプラントの全体的なフットプリントを増加させるために、1つ以上のピンで角度付けするように構成されている、請求項1に記載のシステム。
- 前記第1及び第2の側方脚部が各々、前記拡張可能な椎体間インプラントの前記第1及び第2の側方脚部及び前記中央脚部を拡張するように構成されている駆動ねじを含む作動アセンブリを含む、請求項1に記載のシステム。
- 椎弓根ベースの椎間板内インプラントであって、
形状記憶材料から構成される曲げ可能なロッドであって、前記曲げ可能なロッドが、外側のねじ山付き部分を有する近位端から、骨と係合するように構成されている鋭利な先端を有する遠位端に延在し、前記曲げ可能なロッドが、平面状の面を有する多角形断面を有する、曲げ可能なロッドと、
ねじ頭を有する近位端から、前記曲げ可能なロッドに係合するように構成されている先端を有する遠位端まで延在する椎弓根ねじであって、前記椎弓根ねじが、前記曲げ可能なロッドの前記近位端を受容するための中空の本体を伴うねじ山付きシャフトを有し、前記ねじ山付きシャフトが、前記曲げ可能なロッドの前記外側のねじ部分と嵌合するように構成されている内側のねじ部分を画定する、椎弓根ねじと、を備える、インプラント。 - 前記曲げ可能なロッドが、ニチノールから構成されている、請求項11に記載のインプラント。
- 前記曲げ可能なロッドが、自然湾曲状態を有する、請求項11に記載のインプラント。
- 前記曲げ可能なロッドが、展開のために直線状にされ、前記自然湾曲状態に戻る、請求項13に記載のインプラント。
- 前記ニチノールロッドの前記自然湾曲状態が、最大180°の弧である、請求項13に記載のインプラント。
- 前記ニチノールロッドが、四辺形の断面形状を有する、請求項11に記載のインプラント。
- 椎弓根ベースの椎間板内インプラントを展開するためのシステムであって、
自然湾曲状態を有する形状記憶材料から構成されている曲げ可能なロッドと、前記曲げ可能なロッドの一方の端部に固着可能な椎弓根ねじと、を含む、椎弓根ベースの椎間板内インプラントと、
前記曲げ可能なロッドを装填及び展開するように構成されている展開器具であって、前記展開器具は、前記湾曲したロッドを引き込み、それによって展開管内に保持されたときに前記ロッドを直線状にするように構成されている直線状の前記展開管を伴う長手方向軸を有する本体と、嵌入キャップを伴うシャフトと、を含む、展開器具と、を備える、システム。 - 前記展開器具が、前記嵌入キャップを伴う前記シャフトの上に受容されるように構成されているソケットを伴うT字形ハンドルを含む、請求項17に記載のシステム。
- 前記ハンドルが前記展開器具の前記長手方向軸を中心に回転するとき、前記曲げ可能なロッドが、前記展開管内に引き込まれる、請求項18に記載のシステム。
- 前記展開器具の前記シャフトが、前記嵌入キャップを打つことによって前記器具の前記長手方向軸に沿って遠位に並進するときに、前記シャフトが、前記曲げ可能なロッドを前記展開管から展開させる、請求項17に記載のシステム。
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