JP2013540492A5 - - Google Patents
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- JP2013540492A5 JP2013540492A5 JP2013529419A JP2013529419A JP2013540492A5 JP 2013540492 A5 JP2013540492 A5 JP 2013540492A5 JP 2013529419 A JP2013529419 A JP 2013529419A JP 2013529419 A JP2013529419 A JP 2013529419A JP 2013540492 A5 JP2013540492 A5 JP 2013540492A5
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Description
スコアリングエレメントは、心臓弁上に存する狭窄性物質に刻みを入れるため特に選択された寸法を有する。典型的には、スコアリングエレメントは、半径方向の高さ(厚み)が0.1mmから0.4mm、通常は0.15mmから0.25mmの範囲にあり、円周方向の幅が0.25mmから0.5mm、好ましくは0.3mmから0.4mmの範囲にあるような長方形の断面を有する。
本発明の好ましい実施形態において、例えば以下の項目が提供される。
(項目1)
心臓弁狭窄症を処置するための方法であって、該方法は、以下:
狭窄した心臓弁輪の内部に拡張可能なシェルを配置する工程;
該シェルを拡張させて、該シェルの外表面上に存する複数のスコアリングエレメントを該弁輪に対してかみ合わせる工程;
該スコアリングエレメントが該狭窄を破壊するのに十分な時間、該シェルの拡張を維持する工程;および
該シェルを収縮させる工程:
を包含する、方法。
(項目2)
項目1に記載の方法であって、前記配置する工程が、前記拡張可能なシェルおよびスコアリングエレメントを備えたカテーテルを大動脈弓を越えて前記大動脈弁輪内へ前進させることを包含する、方法。
(項目3)
項目1に記載の方法であって、前記シェルの拡張が、1秒間から12秒間、維持される、方法。
(項目4)
項目3に記載の方法であって、前記シェルを拡張させる工程が、バルーンを膨張させることを包含し、ここで、前記スコアリングエレメントが、前記バルーンを取り囲むが、前記バルーンに取り付けられていない弾性金属ケージ内での軸方向の支柱として形成され、前記ケージが前記バルーンが収縮する際に前記バルーン上で閉じるよう弾性的に付勢される、方法。
(項目5)
項目4に記載の方法であって、前記バルーンが、非伸展性であり、1気圧から12気圧の範囲の圧力まで膨張する、方法。
(項目6)
項目5に記載の方法であって、前記バルーンが、6個から20個のスコアリングエレメントを備え、20mmから30mmの範囲の直径まで膨張する、方法。
(項目7)
心臓弁狭窄症を処置するためのデバイスであって、該デバイスは、以下;
近位端および遠位端を有するシャフト;
該シャフトの遠位部上に備えられた拡張可能なシェル;および
該拡張可能なシェルに備えられた複数のスコアリングエレメント;
を備え、ここで、該拡張可能なシェルは、成体のヒト心臓弁輪を完全に占めるよう選択された長さおよび拡張後直径を有し、該スコアリングエレメントは、放射状に外へ向かう平坦な表面を有する、デバイス。
(項目8)
項目7に記載のデバイスであって、前記シャフトが、前記大動脈弓を越えて導入されることに適合し、前記心臓弁輪内に前記拡張可能なシェルを配置する、デバイス。
(項目9)
項目7に記載のデバイスであって、前記拡張可能なシェルが、20mmから30mmの範囲の膨張後直径を有する非伸展性の膨張可能なバルーンである、デバイス。
(項目10)
項目9に記載のデバイスであって、前記膨張可能なバルーンが、2cmから4cmの範囲の長さを有する、デバイス。
(項目11)
項目10に記載のデバイスであって、5個から20個のスコアリングエレメントが、前記バルーンの近位端から遠位端まで伸びて、バルーン外表面の上の円周上に等間隔で配置される、デバイス。
(項目12)
項目11に記載のデバイスであって、前記スコアリングエレメントが、弾性金属ケージ構造内にて軸方向の支柱として形成され、ここで、前記ケージ構造が、前記カテーテルシャフトに連結するが、前記バルーンには取り付けられておらず、前記ケージが、前記シェルが拡張していない場合に、3mmから7mmの範囲の直径へ閉じるように弾性的に付勢される、デバイス。
(項目13)
項目12に記載のデバイスであって、前記弾性金属ケージ構造が、円周上に配置されて軸方向に伸びる六角形のセルを備え、各セルが、近位連結点および遠位連結点を有し、ここで、該連結点の間を前記軸方向の支柱が伸びる、デバイス。
(項目14)
項目13に記載のデバイスであって、前記ケージが、さらに、前記近位連結点と遠位連結点の間に伸び、前記ケージを前記カテーテルシャフトに固定する近位コネクターリンクおよび遠位コネクターリンクを備える、デバイス。
(項目15)
項目14に記載のデバイスであって、さらに、前記近位コネクターリンクと前記カテーテルシャフトの間にコンプライアンスチューブを備え、ここで、該コンプライアンスチューブが、前記ケージ構造の軸方向の伸展および円周方向の回転に対応するよう適合する、デバイス。
(項目16)
項目7に記載のデバイスであって、前記スコアリングエレメントが、0.1mmから0.4mmの範囲にある半径方向の高さ、および、0.25mmから0.5mmの範囲にある円周方向の幅を持つ長方形の断面を有する、デバイス。
本発明の好ましい実施形態において、例えば以下の項目が提供される。
(項目1)
心臓弁狭窄症を処置するための方法であって、該方法は、以下:
狭窄した心臓弁輪の内部に拡張可能なシェルを配置する工程;
該シェルを拡張させて、該シェルの外表面上に存する複数のスコアリングエレメントを該弁輪に対してかみ合わせる工程;
該スコアリングエレメントが該狭窄を破壊するのに十分な時間、該シェルの拡張を維持する工程;および
該シェルを収縮させる工程:
を包含する、方法。
(項目2)
項目1に記載の方法であって、前記配置する工程が、前記拡張可能なシェルおよびスコアリングエレメントを備えたカテーテルを大動脈弓を越えて前記大動脈弁輪内へ前進させることを包含する、方法。
(項目3)
項目1に記載の方法であって、前記シェルの拡張が、1秒間から12秒間、維持される、方法。
(項目4)
項目3に記載の方法であって、前記シェルを拡張させる工程が、バルーンを膨張させることを包含し、ここで、前記スコアリングエレメントが、前記バルーンを取り囲むが、前記バルーンに取り付けられていない弾性金属ケージ内での軸方向の支柱として形成され、前記ケージが前記バルーンが収縮する際に前記バルーン上で閉じるよう弾性的に付勢される、方法。
(項目5)
項目4に記載の方法であって、前記バルーンが、非伸展性であり、1気圧から12気圧の範囲の圧力まで膨張する、方法。
(項目6)
項目5に記載の方法であって、前記バルーンが、6個から20個のスコアリングエレメントを備え、20mmから30mmの範囲の直径まで膨張する、方法。
(項目7)
心臓弁狭窄症を処置するためのデバイスであって、該デバイスは、以下;
近位端および遠位端を有するシャフト;
該シャフトの遠位部上に備えられた拡張可能なシェル;および
該拡張可能なシェルに備えられた複数のスコアリングエレメント;
を備え、ここで、該拡張可能なシェルは、成体のヒト心臓弁輪を完全に占めるよう選択された長さおよび拡張後直径を有し、該スコアリングエレメントは、放射状に外へ向かう平坦な表面を有する、デバイス。
(項目8)
項目7に記載のデバイスであって、前記シャフトが、前記大動脈弓を越えて導入されることに適合し、前記心臓弁輪内に前記拡張可能なシェルを配置する、デバイス。
(項目9)
項目7に記載のデバイスであって、前記拡張可能なシェルが、20mmから30mmの範囲の膨張後直径を有する非伸展性の膨張可能なバルーンである、デバイス。
(項目10)
項目9に記載のデバイスであって、前記膨張可能なバルーンが、2cmから4cmの範囲の長さを有する、デバイス。
(項目11)
項目10に記載のデバイスであって、5個から20個のスコアリングエレメントが、前記バルーンの近位端から遠位端まで伸びて、バルーン外表面の上の円周上に等間隔で配置される、デバイス。
(項目12)
項目11に記載のデバイスであって、前記スコアリングエレメントが、弾性金属ケージ構造内にて軸方向の支柱として形成され、ここで、前記ケージ構造が、前記カテーテルシャフトに連結するが、前記バルーンには取り付けられておらず、前記ケージが、前記シェルが拡張していない場合に、3mmから7mmの範囲の直径へ閉じるように弾性的に付勢される、デバイス。
(項目13)
項目12に記載のデバイスであって、前記弾性金属ケージ構造が、円周上に配置されて軸方向に伸びる六角形のセルを備え、各セルが、近位連結点および遠位連結点を有し、ここで、該連結点の間を前記軸方向の支柱が伸びる、デバイス。
(項目14)
項目13に記載のデバイスであって、前記ケージが、さらに、前記近位連結点と遠位連結点の間に伸び、前記ケージを前記カテーテルシャフトに固定する近位コネクターリンクおよび遠位コネクターリンクを備える、デバイス。
(項目15)
項目14に記載のデバイスであって、さらに、前記近位コネクターリンクと前記カテーテルシャフトの間にコンプライアンスチューブを備え、ここで、該コンプライアンスチューブが、前記ケージ構造の軸方向の伸展および円周方向の回転に対応するよう適合する、デバイス。
(項目16)
項目7に記載のデバイスであって、前記スコアリングエレメントが、0.1mmから0.4mmの範囲にある半径方向の高さ、および、0.25mmから0.5mmの範囲にある円周方向の幅を持つ長方形の断面を有する、デバイス。
Claims (16)
- 心臓弁狭窄症を処置するためのシステムであって、該システムは、拡張可能なシェルを含み、
該シェルは、狭窄した心臓弁輪の内部に配置され;
該シェルが拡張させられて、該シェルの外表面上に存する複数のスコアリングエレメントが該弁輪に対してかみ合わされ;
該スコアリングエレメントが該狭窄を破壊するのに十分な時間、該シェルの拡張が維持され;そして
該シェルが収縮されることを特徴とする、システム。 - 請求項1に記載のシステムであって、該システムは、前記拡張可能なシェルおよびスコアリングエレメントを備えたカテーテルをさらに含み、該カテーテルは、該拡張可能なシェルが、狭窄した心臓弁輪の内部に配置された場合に、大動脈弓を越えて前記大動脈弁輪内へ前進させられることを特徴とする、システム。
- 請求項1に記載のシステムであって、前記シェルの拡張が、1秒間から12秒間、維持される、システム。
- 請求項3に記載のシステムであって、該システムは、バルーンをさらに含み、前記シェルが拡張された場合に、該バルーンが膨張させられることを特徴とし、ここで、前記スコアリングエレメントが、前記バルーンを取り囲むが、前記バルーンに取り付けられていない弾性金属ケージ内での軸方向の支柱として形成され、前記ケージが前記バルーンが収縮する際に前記バルーン上で閉じるよう弾性的に付勢される、システム。
- 請求項4に記載のシステムであって、前記バルーンが、非伸展性であり、1気圧から12気圧の範囲の圧力まで膨張する、システム。
- 請求項5に記載のシステムであって、前記バルーンが、6個から20個のスコアリングエレメントを備え、20mmから30mmの範囲の直径まで膨張する、システム。
- 心臓弁狭窄症を処置するためのデバイスであって、該デバイスは、以下;
近位端および遠位端を有するシャフト;
該シャフトの遠位部上に備えられた拡張可能なシェル;および
該拡張可能なシェルに備えられた複数のスコアリングエレメント;
を備え、ここで、該拡張可能なシェルは、成体のヒト心臓弁輪を完全に占めるよう選択された長さおよび拡張後直径を有し、該スコアリングエレメントは、放射状に外へ向かう平坦な表面を有する、デバイス。 - 請求項7に記載のデバイスであって、前記シャフトが、前記大動脈弓を越えて導入されて、前記心臓弁輪内に前記拡張可能なシェルを配置するように適合される、デバイス。
- 請求項7に記載のデバイスであって、前記拡張可能なシェルが、20mmから30mmの範囲の膨張後直径を有する非伸展性の膨張可能なバルーンである、デバイス。
- 請求項9に記載のデバイスであって、前記膨張可能なバルーンが、2cmから4cmの範囲の長さを有する、デバイス。
- 請求項10に記載のデバイスであって、5個から20個のスコアリングエレメントが、前記バルーンの近位端から遠位端まで伸びて、バルーン外表面の上の円周上に等間隔で配置される、デバイス。
- 請求項11に記載のデバイスであって、前記スコアリングエレメントが、弾性金属ケージ構造内にて軸方向の支柱として形成され、ここで、前記ケージ構造が、前記カテーテルシャフトに連結するが、前記バルーンには取り付けられておらず、前記ケージが、前記シェルが拡張していない場合に、3mmから7mmの範囲の直径へ閉じるように弾性的に付勢される、デバイス。
- 請求項12に記載のデバイスであって、前記弾性金属ケージ構造が、円周上に配置されて軸方向に伸びる六角形のセルを備え、各セルが、近位連結点および遠位連結点を有し、ここで、該連結点の間を前記軸方向の支柱が伸びる、デバイス。
- 請求項13に記載のデバイスであって、前記ケージが、さらに、前記近位連結点と遠位連結点の間に伸び、前記ケージを前記カテーテルシャフトに固定する近位コネクターリンクおよび遠位コネクターリンクを備える、デバイス。
- 請求項14に記載のデバイスであって、さらに、前記近位コネクターリンクと前記カテーテルシャフトの間にコンプライアンスチューブを備え、ここで、該コンプライアンスチューブが、前記ケージ構造の軸方向の伸展および円周方向の回転に対応するよう適合する、デバイス。
- 請求項7に記載のデバイスであって、前記スコアリングエレメントが、0.1mmから0.4mmの範囲にある半径方向の高さ、および、0.25mmから0.5mmの範囲にある円周方向の幅を持つ長方形の断面を有する、デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38480010P | 2010-09-21 | 2010-09-21 | |
US61/384,800 | 2010-09-21 | ||
PCT/US2011/052392 WO2012040225A2 (en) | 2010-09-21 | 2011-09-20 | Method and system for treating valve stenosis |
Publications (3)
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JP2013540492A JP2013540492A (ja) | 2013-11-07 |
JP2013540492A5 true JP2013540492A5 (ja) | 2014-10-30 |
JP6025729B2 JP6025729B2 (ja) | 2016-11-16 |
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JP2013529419A Active JP6025729B2 (ja) | 2010-09-21 | 2011-09-20 | 弁狭窄症を処置するための方法およびシステム |
Country Status (4)
Country | Link |
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US (4) | US8632559B2 (ja) |
EP (1) | EP2618744B1 (ja) |
JP (1) | JP6025729B2 (ja) |
WO (1) | WO2012040225A2 (ja) |
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