JP2012513243A - 拡張可能椎体置換デバイス及び方法 - Google Patents
拡張可能椎体置換デバイス及び方法 Download PDFInfo
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- JP2012513243A JP2012513243A JP2011542110A JP2011542110A JP2012513243A JP 2012513243 A JP2012513243 A JP 2012513243A JP 2011542110 A JP2011542110 A JP 2011542110A JP 2011542110 A JP2011542110 A JP 2011542110A JP 2012513243 A JP2012513243 A JP 2012513243A
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- chamber
- vertebral body
- implantable device
- end plate
- expansion
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Abstract
【選択図】 図1
Description
本明細書において引用により組み込まれる2008年12月22日出願の米国特許仮出願出願番号第61/140、038号明細書に対する優先権の利益をここに請求する。
110 上端板
120 下端板
160 注入ポート
Claims (30)
- 第1の椎体と第2の椎体の間への挿入のための埋め込み可能デバイスであって、前記埋め込み可能デバイスは、
前記第1の椎体に接触するように構成された第1の端板と、
前記第2の椎体に接触するように構成された第2の端板と、
前記第1の端板と前記第2の端板の間に配置され且つそれらに連結された拡張空気袋であって、前記拡張空気袋が第1のチャンバ及び第2のチャンバを有し、前記第1のチャンバ及び第2のチャンバが相互の流体連通から密封された前記拡張空気袋と、
前記第1の端板又は第2の端板のうちの一方を通して配置された注入ポートであって、前記注入ポートが、前記第1のチャンバと流体連通した第1のチャンネル及び前記第2のチャンバと流体連通した第2のチャンネルを有する前記注入ポートと、
を有することを特徴とする埋め込み可能デバイス。 - 前記第2のチャンバは、前記第1のチャンバを取り囲むことを特徴とする請求項1に記載の埋め込み可能デバイス。
- 前記第2のチャンバは、前記第1のチャンバの周りに実質的に同心に配置されることを特徴とする請求項1に記載の埋め込み可能デバイス。
- 前記拡張空気袋は、前記第1及び第2のチャンバのうちの少なくとも一方を材料で充填することによって拡張するように構成され、
前記拡張空気袋の拡張が、前記第1及び第2の端板を互いから離れるように移動させる、ことを特徴とする請求項1に記載の埋め込み可能デバイス。 - 前記第1及び第2のチャンバのうちの少なくとも一方は、少なくとも部分的に生理食塩水で満たされるように構成されることを特徴とする請求項4に記載の埋め込み可能デバイス。
- 前記第1及び第2のチャンバのうちの少なくとも一方は、少なくとも部分的に空気で満たされるように構成されることを特徴とする請求項4に記載の埋め込み可能デバイス。
- 前記第1及び第2のチャンバのうちの少なくとも一方は、少なくとも部分的に構造的支持材料で満たされるように構成されることを特徴とする請求項4に記載の埋め込み可能デバイス。
- 前記構造的支持材料は、ポリメチルメタクリレートを含むことを特徴とする請求項7に記載の埋め込み可能デバイス。
- 前記第1及び第2の端板の少なくとも一方は、環状であることを特徴とする請求項1に記載の埋め込み可能デバイス。
- 前記第1及び第2の端板の両方は、環状であることを特徴とする請求項9に記載の埋め込み可能デバイス。
- 前記拡張空気袋の前記第1のチャンバは、前記環状の第1及び第2の端板の開放区域に配置されることを特徴とする請求項10に記載の埋め込み可能デバイス。
- 前記拡張空気袋は、2つ又はそれよりも多くの第1のチャンバを含むことを特徴とする請求項1に記載の埋め込み可能デバイス。
- 前記拡張空気袋は、2つ又はそれよりも多くの第2のチャンバを含むことを特徴とする請求項1に記載の埋め込み可能デバイス。
- 椎体置換システムであって、
第1の椎体と第2の椎体の間への挿入のための埋め込み可能デバイスであって、
前記埋め込み可能デバイスが、
前記第1の椎体に接触するように構成された第1の端板と、
前記第2の椎体に接触するように構成された第2の端板と、
前記第1の端板と前記第2の端板の間に配置され、かつそれらに連結された拡張空気袋であって、前記拡張空気袋が第1のチャンバ及び第2のチャンバを有し、前記第1のチャンバ及び第2のチャンバが相互の流体連通から密封された前記拡張空気袋と、
前記第1の端板又は第2の端板のうちの一方を通して配置された注入ポートであって、前記注入ポートが、前記第1のチャンバと流体連通した第1のチャンネル及び前記第2のチャンバと流体連通した第2のチャンネルを有する前記注入ポートと、を有する前記埋め込み可能デバイスと、
前記第1及び第2のチャンバのうちの少なくとも一方を材料で少なくとも部分的に満たすために前記第1及び第2のチャンネルの少なくとも一方と流体連通するように構成された充填材料導入器と、
を有することを特徴とする椎体置換システム。 - 前記充填材料導入器は、前記第1のチャンバを第1の材料で少なくとも部分的に満たすために前記第1のチャンネルと流体連通するように構成された第1の充填材料導入器と、前記第2のチャンバを第2の材料で少なくとも部分的に満たすために前記第2のチャンネルと流体連通するように構成された第2の充填材料導入器とを含むことを特徴とする請求項14に記載の椎体置換システム。
- 前記第1の材料は、拡張流体を含み、前記第2の材料は、構造的支持材料を含むことを特徴とする請求項15に記載の椎体置換システム。
- 前記第2のチャンバは、前記第1のチャンバを取り囲むことを特徴とする請求項14に記載の椎体置換システム。
- 前記第2のチャンバは、前記第1のチャンバの周りに実質的に同心に配置されることを特徴とする請求項14に記載の椎体置換システム。
- 前記拡張空気袋は、前記第1及び第2のチャンバのうちの少なくとも一方を前記材料で充填することによって拡張するように構成され、
前記拡張空気袋の拡張が、前記第1及び第2の端板を互いから離れるように移動させる、
ことを特徴とする請求項14に記載の椎体置換システム。 - 椎体置換の方法であって、前記方法は、
第1の椎体と第2の椎体の間に埋め込み可能デバイスを挿入する段階であって、前記埋め込み可能デバイスが、前記第1の椎体に接触するように構成された第1の端板と、前記第2の椎体に接触するように構成された第2の端板と、前記第1の端板と前記第2の端板の間に配置され、かつそれらに連結された拡張空気袋であって、前記拡張空気袋が第1のチャンバ及び第2のチャンバを有し、前記第1のチャンバ及び前記第2のチャンバが相互の流体連通から密封された拡張空気袋とを有する前記段階と、
前記埋め込み可能デバイスの前記第1及び第2の端板を分離して前記埋め込み可能デバイスの最終高さを達成するために、前記拡張空気袋の前記第1のチャンバ内に拡張流体を導入する段階と、
前記埋め込み可能デバイスの前記最終高さを維持するために、前記拡張空気袋の前記第2のチャンバ内に構造的支持材料を導入する段階と、を有することを特徴とする方法。 - 前記拡張空気袋の前記第2のチャンバ内に前記構造的支持材料を導入した後に前記第1のチャンバから前記拡張流体を排出する段階を含むことを特徴とする請求項20に記載の方法。
- 前記拡張流体の排出の後に前記第1のチャンバ内に物質を導入する段階を含むことを特徴とする請求項21に記載の方法。
- 前記第1のチャンバ内に前記物質を導入する段階は、前記第1のチャンバ内に治療物質を導入する段階を含むことを特徴とする請求項22に記載の方法。
- 前記拡張流体を導入する段階は、前記埋め込み可能デバイスの前記第1及び第2の端板を分離して前記第1の端板をして前記第1の椎体に接触させ、かつ前記第2の端板をして前記第2の椎体に接触させる段階を含むことを特徴とする請求項20に記載の請求項に記載の方法。
- 第1及び第2の椎体の間に配置された損傷又は病変した椎体を含む脊椎の処置の方法であって、本方法は、
前記脊椎へのアクセスチャンネルを準備する段階と、
前記損傷又は病変した椎体を除去する段階と、
前記アクセスチャンネルを通じて、前記第1の椎体と前記第2の椎体の間に埋め込み可能デバイスを挿入する段階であって、前記埋め込み可能デバイスが、前記第1の椎体に接触するように構成された第1の端板と、前記第2の椎体に接触するように構成された第2の端板と、前記第1の端板と前記第2の端板の間に配置され、かつそれらに連結された拡張空気袋であって、前記拡張空気袋が第1のチャンバ及び第2のチャンバを含み、前記第1のチャンバ及び前記第2のチャンバが相互の流体連通から密封された前記拡張空気袋とを含む前記段階と、
前記埋め込み可能デバイスの前記第1及び第2の端板を分離して前記埋め込み可能デバイスの最終高さを達成するために、前記拡張空気袋の前記第1のチャンバ内に拡張流体を導入する段階であって、前記第1の端板が前記第1の椎体と接触し、かつ前記第2の端板が前記第2の椎体と接触する前記段階と、
前記埋め込み可能デバイスの前記最終高さを維持するために、前記拡張空気袋の前記第2のチャンバ内に構造的支持材料を導入する段階と、を有することを特徴とする方法。 - 前記拡張空気袋の前記第2のチャンバ内に前記構造的支持材料を導入した後に前記第1のチャンバから前記拡張流体を排出する段階を含むことを特徴とする請求項25に記載の方法。
- 前記拡張流体の排出の後に前記第1のチャンバ内に物質を導入する段階を含むことを特徴とする請求項26に記載の方法。
- 前記第1のチャンバ内に前記物質を導入する段階は、前記第1のチャンバ内に治療物質を導入する段階を含むことを特徴とする請求項27に記載の方法。
- 前記埋め込み可能デバイスの挿入に続いて前記アクセスチャンネルを密封する段階を含むことを特徴とする請求項25に記載の方法。
- 前記埋め込み可能デバイスを挿入する段階は、前記最終高さよりも低い前記埋め込み可能デバイスの初期高さで前記埋め込み可能デバイスを挿入する段階を含むことを特徴とする請求項25に記載の方法。
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US8632592B2 (en) | 2014-01-21 |
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