JP4282993B2 - カテーテルベースの輪状形成術のための方法および装置(発明の背景)(1.発明の分野)本発明は、一般に、僧帽弁漏出のような僧帽弁機能不全を処置するための技術に関する。より具体的には、本発明は、最小限侵襲性の様式で、漏出性僧帽弁を処置するためのシステムおよび方法に関する。 - Google Patents
カテーテルベースの輪状形成術のための方法および装置(発明の背景)(1.発明の分野)本発明は、一般に、僧帽弁漏出のような僧帽弁機能不全を処置するための技術に関する。より具体的には、本発明は、最小限侵襲性の様式で、漏出性僧帽弁を処置するためのシステムおよび方法に関する。 Download PDFInfo
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- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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Description
うっ血性心不全(CHF)(これは、しばしば、心臓の拡張を伴う)は、主要な死亡原因である。結果として、CHFの処置についての市場は、ますます拡大している。例えば、CHFの処置は、米国において医療保険および国民医療保障のドルの主要な出費である。代表的に、CHFの処置は、CHFに罹患した多数の人が、改善された生活の質を楽しむことを可能にする。
本発明は、輪状形成を実施する非侵襲性の方法に関する。本発明の1つの局面に従って、心臓の僧帽弁において手順を実施するための方法は、左心室に移植物を挿入する工程、および実質的に僧帽弁の下の左心室に移植物を配向させる工程を包含する。この移植物は僧帽弁付近の組織に装着し得る。1つの実施形態において、移植物は、僧帽弁に対応する弧の長さを実質的に短くするために短縮される。別の実施形態において、移植物は大動脈および大動脈弁を通って左心室に挿入される。
侵襲性の開心術(心臓切開手術)の手順は、一般的に僧帽弁での漏出(leakage)の処置において効果的である。しかし、開心術手順は、ある患者(例えば、非常に不健康であるとみなされる虚弱な患者)によっては特に有害となり得、そして他の患者(例えば、無症候性の患者および手術手順の実施を望まない患者)にとっては所望され得ない。従って、僧帽弁の漏出またはより一般的な僧帽弁不全を矯正するための開心術手順は、僧帽弁漏出を減少させるか、または排除することよって改善される可能性のある多くの患者にとって適切ではない。
本発明は、添付の図面とともに以下の説明を参照することによって最も良く理解され得る。
Claims (30)
- 輪状形成術において使用するためのデバイスであって、該デバイスは、以下:
カテーテルを通して左心室に挿入されるように構成された移植物であって、該移植物は、張力が該移植物に適用される場合に、該移植物自体に対して実質的に短縮されるように構成される、移植物;
メッシュであって、該メッシュは、該移植物上に配置される、メッシュ;および
張力要素であって、該張力要素は、該移植物に張力を適用するように構成され、該デバイスが心臓の僧帽弁の心室側の周りの組織に連結されるときに、該張力要素は、該移植物によって形成される弧の長さを短縮するように構成され、該移植物によって形成される弧の長さを短縮することで、僧帽弁の後尖によって形成される弧の長さを減少させる、張力要素;
を備え、それによって、該デバイスは、心臓の僧帽弁の心室側の周りの組織に連結されるように構成されている、デバイス。 - 請求項1に記載のデバイスであって、該デバイスは、前記僧帽弁の心室側に位置づけられるのに適切である、デバイス。
- 請求項2に記載のデバイスであって、前記張力要素は、前記移植物に適用される前記張力を変更するために連続的に調節される、デバイス。
- 請求項2に記載のデバイスであって、前記張力要素は、前記移植物内に少なくとも部分的に位置する、デバイス。
- 請求項2に記載のデバイスであって、以下;
連結器であって、該連結器は、前記移植物および前記メッシュを通して伸長するように配置され、該連結器は該デバイスを前記組織に連結させるためにさらに配置される、連結器、
をさらに備える、デバイス。 - 前記連結器が、T字型バーである、請求項5に記載のデバイス。
- 輪状形成術において使用するためのデバイスであって、該デバイスは、以下:
弧の長さを有する折り畳み式移植物であって、該折り畳み式移植物は、カテーテルを通して左心室への挿入のための伸長位置と短縮位置との間で移動可能である、折り畳み式移植物;
カテーテルを挿入するように形成され、移植物を受け入れるようになったガイド要素;および
短縮デバイスであって、該短縮デバイスは、該伸長位置と該短縮位置との間で該折り畳み式移植物を移動させるように作動可能であり、ここで、該デバイスは、移植物がガイド要素上に受け入れられている場合に、移植物は伸長位置にあり、移植物に関連する長さが短縮される場合に、移植物は短縮位置にある、短縮デバイス、
を備える、デバイス。 - 請求項7に記載のデバイスであって、以下:
メッシュ被覆であって、該メッシュ被覆は、前記折り畳み式移植物の少なくとも一部にわって伸長する、メッシュ被覆をさらに備える、デバイス。 - 請求項7に記載のデバイスであって、該デバイスは、前記僧帽弁の近傍の組織に連結されるのに適切である、デバイス。
- 請求項8に記載のデバイスであって、以下:
連結器であって、該連結器は、前記メッシュを通って伸長するように構成され、該連結器は、該デバイスを前記組織に連結させるようにさらに配置される、連結器、
をさらに備える、デバイス。 - 心臓の僧帽弁に対して輪状形成術を実施するためのシステムであって、該システムは、以下:
カテーテルアセンブリであって、該カテーテルアセンブリは、該心臓の大動脈を通って該心臓の左心室へ挿入されて、該僧帽弁の実質的に下の該左心室の領域に到達するように構成される、カテーテルアセンブリ;
該カテーテルアセンブリへの挿入のために成形されたガイド要素であって、該ガイド要素は、固定可能特徴を有する、ガイド要素;および
移植物であって、該移植物は、該僧帽弁の実質的に下の該左心室の領域への該ガイド要素に沿った挿入のために成形され、ここで、該移植物は、該心臓の僧帽弁環に結合されるように構成される、移植物、
を備える、システム。 - 請求項11に記載のシステムであって、前記カテーテルアセンブリは、送達チューブおよびガターカテーテルを備え、該ガターカテーテルは、該送達チューブ内に少なくとも部分的に位置づけられ、ここで、該ガターカテーテルの一部は、前記左心室の乳頭筋に付随する平面と前記僧帽弁に付随する平面との間に規定される該左心室の領域内に実質的に位置づけられるように構成される、システム。
- 請求項12に記載のシステムであって、前記ガイド要素は、前記ガターカテーテルの管腔への挿入のために成形される、システム。
- 請求項11に記載のシステムであって、前記カテーテルアセンブリは、送達チューブおよびガターカテーテルを備え、該ガターカテーテルは、該送達チューブ内に少なくとも部分的に位置づけられ、ここで、該ガターカテーテルの一部は、前記左心室の乳頭筋に付随する平面と、前記僧帽弁に付随する平面と、該左心室の腱索と、該左心室の壁との間に規定される該左心室の領域内に実質的に位置づけられるように構成される、システム。
- 請求項11に記載のシステムであって、以下:
結合カテーテルであって、前記結合カテーテルは、結合要素を提供するように構成され、ここで、該結合要素は、前記移植物を前記組織に結合させるように構成される、結合カテーテル、
をさらに備える、システム。 - 前記組織が前記僧帽弁の近傍に位置する、請求項15に記載のシステム。
- 前記カテーテルアセンブリが、ナイロン材料およびウレタン材料の少なくとも1種から、少なくとも部分的に形成される、請求項11に記載のシステム。
- 前記組織が繊維組織である、請求項17に記載のシステム。
- 請求項14に記載のシステムであって、前記移植物が短縮要素を備え、該短縮要素は、該移植物に関連する弧の長さを短縮するために配置され、ここで、該移植物に関連する弧の長さを短縮することが、該僧帽弁の後尖に関連する弧の長さを減少させる、システム。
- 請求項14に記載のシステムであって、前記移植物は、短縮状態および非短縮状態を有するように構成され、ここで、該移植物が前記ガイド要素に沿って挿入される場合に、該移植物は非短縮状態であり、そして該移植物に関連する弧の長さが短縮される場合、該移植物は短縮状態である、システム。
- 前記ガイド要素が、ステンレス鋼材料および形状記憶材料の1種から形成される、請求項11に記載のシステム。
- 心臓弁に対する輪状形成術において使用するためのデバイスであって、該デバイスは、以下:
間隔を隔てた位置で心臓弁の環状部に隣接した組織に独立して固定されるように構成されている複数の留め具;
前記環状部に隣接した組織に前記複数の留め具を送達し、挿入することができる管腔を有する少なくとも1つのカテーテル;
前記複数の留め具に連結され、張力状態に置かれるように構成され、それによって、組織をひだ寄せするように互いに近くに位置決めされる活性状態に前記複数の留め具を配置する張力要素;および
前記複数の留め具を活性状態に固定するように作動するロッキング特徴;
を備える、デバイス。 - 張力要素に加えられる張力が連続的に調節可能である、請求項22に記載のデバイス。
- カテーテルに受け入れられたガイドワイヤをさらに備え、該ガイドワイヤは、左心室内での位置を維持するために環状部に隣接した組織に固定されることができる係留用先端を有する、請求項22に記載のデバイス。
- 前記ロックング特徴は、前記張力要素の一部を形成する、請求項22に記載のデバイス。
- 前記ロッキング特徴は、前記張力要素を結ぶことによって形成される、請求項25に記載のデバイス。
- ロッキング特徴および張力要素は、ケーブルタイの位置である、請求項26に記載のデバイス。
- カテーテルの遠位先端部は、操縦可能である、請求項22に記載のデバイス。
- カテーテルを通して送達可能であり、前記複数の留め具の挿入中に環状部に隣接した組織に当てて膨張させることができる膨張可能な部材をさらに備える、請求項22に記載のデバイス。
- 前記少なくとも1つのカテーテルは、前記複数の留め具を送達し、挿入するように構成された送達カテーテルを備える、請求項22に記載のデバイス。
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US09/841,968 US6619291B2 (en) | 2001-04-24 | 2001-04-24 | Method and apparatus for catheter-based annuloplasty |
PCT/US2002/010952 WO2002085251A1 (en) | 2001-04-24 | 2002-04-09 | Method and apparatus for performing catheter-based annuloplasty |
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JP2004535851A JP2004535851A (ja) | 2004-12-02 |
JP2004535851A5 JP2004535851A5 (ja) | 2005-12-22 |
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JP2002582831A Expired - Lifetime JP4282993B2 (ja) | 2001-04-24 | 2002-04-09 | カテーテルベースの輪状形成術のための方法および装置(発明の背景)(1.発明の分野)本発明は、一般に、僧帽弁漏出のような僧帽弁機能不全を処置するための技術に関する。より具体的には、本発明は、最小限侵襲性の様式で、漏出性僧帽弁を処置するためのシステムおよび方法に関する。 |
JP2008271073A Abandoned JP2009039556A (ja) | 2001-04-24 | 2008-10-21 | 局所的ひだ形成術を使用するカテーテルベースの輪状形成術のための方法および装置 |
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JP (2) | JP4282993B2 (ja) |
AU (1) | AU2002305156B2 (ja) |
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EP1389074A4 (en) | 2007-02-28 |
US6718985B2 (en) | 2004-04-13 |
US20040019378A1 (en) | 2004-01-29 |
ZA200307706B (en) | 2004-10-04 |
WO2002085251A1 (en) | 2002-10-31 |
BR0209096A (pt) | 2004-07-13 |
JP2009039556A (ja) | 2009-02-26 |
JP2004535851A (ja) | 2004-12-02 |
IL158230A0 (en) | 2004-05-12 |
US20030220685A1 (en) | 2003-11-27 |
CA2453281A1 (en) | 2002-10-31 |
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