JP2015516243A - インプラント可能な骨増生部およびインプラント可能な骨増生部を製造するための方法 - Google Patents
インプラント可能な骨増生部およびインプラント可能な骨増生部を製造するための方法 Download PDFInfo
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Abstract
Description
− 骨欠損部を含む患者の骨の少なくとも一部の3次元モデルを提供するステップと、
− 3次元モデルに基づいて増生部の形状およびサイズを設計するステップとを含み、増生部の骨接触面は骨の対応する外面、特に骨欠損部の表面、に相補的に形成され、当該方法はさらに、
− 設計された形状およびサイズを有し、かつ多孔質の微細構造を有する増生部の本体を設計するステップを含み、設計するステップはさらに、埋込まれた増生部の予測される荷重条件に基づいて上記本体に補強材を設けることを含み、当該方法はさらに、
− 設計された増生部を製造するステップを含む。
Claims (22)
- 患者の骨における骨欠損部に少なくとも部分的に嵌まるように配置されるインプラント可能な骨増生部を製造するための方法であって、
− 前記骨欠損部を含む、前記患者の前記骨の少なくとも一部の3次元モデルを提供するステップと、
− 前記3次元モデルに基づいて増生部の形状およびサイズを設計するステップとを含み、前記増生部の骨接触面は、前記骨の対応する外面、特に前記骨欠損部の表面、に相補的に形成され、前記方法はさらに、
− 前記設計された形状およびサイズを有し、かつ多孔質の微細構造を有する前記増生部の前記本体を設計するステップを含み、前記設計するステップはさらに、埋込まれた前記増生部の予測される荷重条件に基づいて前記本体に補強材を設けることを含み、前記方法はさらに、
− 前記設計された増生部を製造するステップを含む、方法。 - 前記製造するステップは、3次元プリント技術を用いることを含む、請求項1に記載の方法。
- 前記本体に補強材を設けるステップは、材料タイプおよび/またはヤング率などの前記本体の局所的な材料特性を適合させることを含む、請求項1または2に記載の方法。
- 前記本体に補強材を設けるステップは、前記本体の前記微細構造の局所的な密度を適合させることを含む、請求項1から3のいずれかに記載の方法。
- 前記補強材の少なくとも一部は非固形の多孔質の微細構造を含む、請求項1から4のいずれかに記載の方法。
- 前記補強材の少なくとも一部は固体構造を含む、請求項1から5のいずれかに記載の方法。
- 前記多孔質の微細構造は、間に空隙を形成する支柱を含み、前記固体構造に隣接する前記微細構造は、前記固体構造に向かって直径の広くなる支柱を含む、請求項6に記載の方法。
- たとえばスパイクの形状および/またはねじを収容するための穴の形状をした、前記増生部を前記骨に接続するための接続手段を設計するステップをさらに含み、前記補強材は、前記接続手段の予測された荷重条件に基づいて前記本体に設けられる、請求項1から7のいずれかに記載の方法。
- 前記接続手段を設計するステップは、たとえば骨質分析に基づいて、前記接続手段を収容するのに適した3次元モデルにおける骨構造を識別することと、前記識別された骨構造と協働するように前記接続手段を設計することとを含む、請求項8に記載の方法。
- 前記予測された荷重条件を決定するために、前記増生部の設計および前記骨の3次元モデルを用いて、前記増生部を埋込まれた状態で、たとえば有限要素法を用いてシミュレートするステップをさらに含み、前記本体における前記補強材は前記シミュレートされた荷重条件に基づいて設けられる、請求項1から9のいずれかに記載の方法。
- 前記本体における前記シミュレートされた局所的荷重を少なくとも材料破壊荷重値よりも下げるために、反復プロセスにおいて、前記本体を設計するステップと前記荷重条件をシミュレートするステップとを繰返すステップをさらに含む、請求項10に記載の方法。
- 周囲の骨におけるシミュレートされた荷重条件を決定し、そして、前記周囲の骨における最適な荷重条件を得るために、反復プロセスにおいて前記本体を設計するステップと前記周囲における前記荷重条件をシミュレートするステップとを繰返すステップをさらに含む、請求項10または11に記載の方法。
- 前記増生部の形状およびサイズを設計するステップは、前記骨欠損部の対応する外面に相補的な第1の骨接触面を形成することと、前記患者の前記骨の無傷部分の対応する外面に相補的な第2の骨接触面を形成することとを含む、請求項1から12のいずれかに記載の方法。
- 多孔質の微細構造を有し、かつ、患者の骨における骨欠損部に少なくとも部分的に嵌まるように配置されるサイズおよび形状を有する本体を含むインプラント可能な骨増生部であって、前記本体は、患者の骨の対応する外面、特に骨欠損部の表面、に相補的に形成された骨接触面を含み、前記本体の少なくとも一部は、前記本体の補強構造を形成するために異なる材料特性を有する、インプラント可能な骨増生部。
- 前記本体の少なくとも一部は、前記本体の補強構造を形成するために異なる密度を有する多孔質の微細構造を含む、請求項14に記載のインプラント可能な骨増生部。
- 前記補強構造の少なくとも一部は非固形の多孔質の微細構造を含む、請求項14または15に記載のインプラント可能な骨増生部。
- 前記補強構造の少なくとも一部は固体構造を含む、請求項14、15または16に記載のインプラント可能な骨増生部。
- 前記多孔質の微細構造は、間に空隙を形成する支柱を含み、前記固体構造に隣接する前記微細構造は、前記固体構造に向かって直径の広くなる支柱を含む、請求項17に記載のインプラント可能な骨増生部。
- 前記補強構造の少なくとも一部は前記本体の内部領域を通って延在する、請求項14から18のいずれかに記載のインプラント可能な骨増生部。
- たとえばスパイクの形状および/またはねじを収容するための穴の形状をした、患者の前記骨に前記増生部を接続するための接続手段をさらに含み、前記補強構造は、前記本体を補強するために、前記接続手段に少なくとも隣接して配置される、請求項14から19のいずれかに記載のインプラント可能な骨増生部。
- 前記接続手段は、前記本体を通って延在する複数のねじ収容孔を含み、前記補強構造は少なくとも前記複数のねじ収容孔の間に延在する、請求項20に記載のインプラント可能な骨増生部。
- 前記骨欠損部の対応する外面に相補的に形成された第1の骨接触面と、前記患者の前記骨の無傷部分の対応する外面に相補的に形成された第2の骨接触面とを含む、請求項14から21のいずれかに記載のインプラント可能な骨増生部。
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PCT/EP2012/058883 WO2013170872A1 (en) | 2012-05-14 | 2012-05-14 | Implantable bone augment and method for manufacturing an implantable bone augment |
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JP2015516243A5 JP2015516243A5 (ja) | 2015-07-23 |
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US (1) | US20150112443A1 (ja) |
EP (1) | EP2849682A1 (ja) |
JP (1) | JP2015516243A (ja) |
AU (1) | AU2012380045A1 (ja) |
CA (1) | CA2873078A1 (ja) |
WO (1) | WO2013170872A1 (ja) |
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US20150112443A1 (en) | 2015-04-23 |
AU2012380045A1 (en) | 2014-11-27 |
CA2873078A1 (en) | 2013-11-21 |
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