JP6983799B2 - 整形外科用途のための拡張可能ファスナ - Google Patents
整形外科用途のための拡張可能ファスナ Download PDFInfo
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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
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- A61B17/844—Fasteners therefor or fasteners being internal fixation devices with expandable anchors or anchors having movable parts
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Description
Claims (15)
- 整形外科用途のための、骨の穿孔内に設置されると締結するように配列された拡張可能ファスナであって、前記ファスナは、
軸線を有する本体と、
前記ファスナの遠位端部において前記本体に取り付けられた作用要素と、
収縮構成と拡張構成との間で可動である拡張部分であって、使用中、前記拡張部分は、前記本体から前記穿孔を囲む前記骨に向かって外向きに押すように可動であって、さらに前記拡張部分は拡張部材の一部であって、前記拡張部材は、前記本体に対して可動であり、かつ、前記本体の軸線に沿って前記作用要素に向かって又はそれから離れる方に可動である、拡張部分と、を備え、
前記ファスナは、前記拡張部分と前記本体との間での骨の内殖が回避可能とされるように、前記拡張部分の長さの少なくとも一部に沿って前記本体と接触しているように前記拡張部分を前記拡張構成に配列し、
前記拡張部材が前記ファスナの遠位端部及び前記作用要素に向かって動かされて前記作用要素と係合するとき、前記作用要素に向かう前記拡張部材の更なる動きにより、前記拡張部材の拡張部分が前記本体の軸線から離れる方に移動され、その結果、前記拡張部分が前記拡張構成に変わるように前記拡張部材及び前記作用要素が構成されている、ファスナ。 - 前記拡張部分は、前記拡張部分が前記拡張構成にあるとき、前記本体によって少なくとも部分的に囲まれ、当該部分において前記拡張部分と前記本体との間の隙間の形成が回避可能な、請求項1に記載のファスナ。
- 前記拡張部分と前記本体との直接隣接する表面領域が相互に直接接触していることにより、前記隣接する表面領域同士の間の隙間の形成が回避可能な、請求項1または2のうちのいずれか1項に記載のファスナ。
- 前記ファスナは、前記ファスナが前記拡張構成にあるとき、前記拡張部分の厚さの少なくとも一部分が前記拡張部分の長さに沿って前記本体の一部分と重複するように配列されている、請求項1〜3のうちのいずれか1項に記載のファスナ。
- 前記ファスナが前記拡張構成にあるとき、前記拡張部分と前記本体との間の隙間の少なくとも一部分を覆うか又は塞ぐように配列されている要素を備える、請求項1または2に記載のファスナ。
- 前記拡張部分は、前記本体から独立している拡張部材の一部分である、請求項1〜5のうちのいずれか1項に記載のファスナ。
- 前記本体は、前記拡張部分の長さの少なくとも一部分に沿って延在する楔状接触面を有し、前記ファスナが前記拡張構成にあるとき、前記拡張部分の接触面において前記楔状接触面が前記拡張部分に当接して当該拡張部分を楔締めする、請求項1〜6のうちのいずれか1項に記載のファスナ。
- 前記拡張部分は、複数の拡張部分のうちの1つである、請求項1〜7のうちのいずれか1項に記載のファスナ。
- 少なくとも2対の拡張部分を備える請求項8に記載のファスナであって、1つの対の前記拡張部分が、別の対の前記拡張部分に対向して向いていることにより、前記1つの対の拡張部分の端部が、前記別の対の拡張部分の端部に対向しており、前記1つの対の拡張部分が、前記軸線から離れる向きである外向きに拡張されるとき、前記1つの対の拡張部分の端部と当接する前記別の対の対向する端部も外向きに拡張される、ファスナ。
- 前記拡張部分が曲げ領域を備え、前記拡張部分は、前記拡張部分が前記拡張構成に向かって押されるときに、前記曲げ領域において曲がり、前記拡張部分が前記拡張構成であるときに、前記曲げ領域は、前記本体の一部分によって少なくとも部分的に重複されている、請求項1〜9のうちのいずれか1項に記載のファスナ。
- 前記本体又は前記拡張部分の少なくとも部分は、外側への変形可能な材料の層を備え、前記拡張部分が外向きに押されるときに、前記本体の接触面及び前記拡張部分の側壁が相互に係合するように配列されており、それによって、前記外側への変形可能な材料の層が変形して、当該材料の層の変形の無い場合に前記拡張部分と前記本体との間に形成され得る隙間の少なくとも一部分を前記材料の層が塞ぐか又はそれと重複することを可能にする、請求項1〜10のうちのいずれか1項に記載のファスナ。
- 前記拡張構成にあるとき、前記本体と拡張部分との間に又は隣接する拡張部分同士の間に、さもなければ形成することがある隙間と重複する外側弾性膜を備える、請求項1〜11のうちのいずれか1項に記載のファスナ。
- 非粘着性であり、前記本体と前記拡張部分との間に又は隣接する拡張部分同士の間に配置されて隙間を塞ぐ材料を備える、請求項1〜12のうちのいずれか1項に記載のファスナ。
- 変形可能な材料が、前記ファスナの内部に注入され、前記変形可能な材料は、細菌の形成又は蓄積を防止するように配列されている抗菌性物質である、請求項1〜13のうちのいずれか1項に記載のファスナ。
- コーティングを備え、前記コーティングは、骨の成長を抑制又は低減可能な化学的性質を有することにより、前記ファスナが前記拡張構成にあるとき、前記拡張部分と前記本体との間での前記骨の内殖が低減される、請求項1〜14のうちのいずれか1項に記載のファスナ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2016901033 | 2016-03-18 | ||
AU2016901033A AU2016901033A0 (en) | 2016-03-18 | A device | |
PCT/AU2017/050248 WO2017156596A1 (en) | 2016-03-18 | 2017-03-20 | An expandable fastener for orthopaedic applications |
Publications (2)
Publication Number | Publication Date |
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JP2019509821A JP2019509821A (ja) | 2019-04-11 |
JP6983799B2 true JP6983799B2 (ja) | 2021-12-17 |
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Application Number | Title | Priority Date | Filing Date |
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JP2018549155A Active JP6983799B2 (ja) | 2016-03-18 | 2017-03-20 | 整形外科用途のための拡張可能ファスナ |
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Country | Link |
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US (1) | US10729480B2 (ja) |
EP (1) | EP3429481B1 (ja) |
JP (1) | JP6983799B2 (ja) |
CN (1) | CN108778152B (ja) |
AU (1) | AU2017233553B2 (ja) |
ES (1) | ES2950012T3 (ja) |
WO (1) | WO2017156596A1 (ja) |
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