JP5461192B2 - 心疾患用装置 - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
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- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
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Description
本発明は米国特許出願第10/212,033号(2002年8月1日出願)の継続部分出願であり、米国特許出願第10/212,033号は米国特許出願09/635,511号(2000年8月9日出願)の継続部分出願であり、米国特許出願第09/635,511号は米国仮特許出願第60/147,894号(1999年8月9日出願)の優先権主張を伴う。これらの出願は、その全体の内容が参照によって本明細書に組み込まれ、それらの出願に対して出願人らは部得国特許法120条に基づく優先権を主張する。
本明細書に記載された全ての出版物及び特許出願は、各別の出版物又は特許出願について特別にまた個別に参照によって組み込まれる旨を記載した場合と同様に、参照によって本明細書に組み込まれる。
図1は、本発明の特徴を具体化し、本明細書の方法を実施する際に利用される拡張期復元装置130を示す。装置130は、好ましくは拡張期復元装置の中心に配置されるハブ132と、末端部でハブに接続した複数のリブ134によって形成される半径方向に拡張可能な補強フレームとを含む。本明細書の装置に関する代替的な実施の形態は、少なくとも3つのリブを含む。リブは、弾性フレームを形成し、例えばニチノール・ステンレス鋼、チタン合金、NiTi合金、その他合金又はプラスチック混合物のような材料から作られる。リブ/フレームは、配置中に自由基端部を中心軸方向へ圧縮可能であり、そして(例えば患者の心臓に)配置した際に自動拡張することが可能な材料から作られる場合もある。リブ134は、ハブ132に回動可能に取り付けられており、外方へ付勢されるか又はハブに固定された末端部136と、拡張期復元装置の少なくとも拡張時に中心軸138から湾曲するように又は離れて張り出すように形成された自由基端部137とを有する。
図16Aは、僧帽弁1613及び大動脈弁1614を有し右心室1611及び左心室1612を示す患者の心臓1610の模式図である。心膜1615は心臓1610の周囲に示される。図16Aは、うっ血性心不全の特徴を呈する患者に見られる心尖拡張(LVの丸く肥大した心尖1616)を患う患者の心臓を示す。図16Bは、本発明に係る特徴を備えた拡張期復元装置1630を用いて、詳細は後述するように主たる機能部分又は作動部分1618と副次的な基本的に機能しない非機能部分1617とに区画された後の図16Aの左心室1612を示す。図17は、楕円形状の拡張期復元装置1730を使用する本発明の方法に従って治療した後の図16Aの患者の心臓の模式図である。装置1730は、心臓1710の左心室1712に埋め込まれ、機能部分1718と非機能部分1717とを形成する。
(実施例1)
前壁梗塞及び収縮機能障害の後に虚血性心筋症と診断された症候性心不全(ニューヨーク心臓協会の分類(New York Heart Association Classification)でのレベルII及びIII)の患者が、図1に示すものと同様の拡張期復元装置を埋め込む研究に登録された。特定装置の大きさの選択は、平均着床位置の直径55.1mm(平均心臓拡張値又は心臓サイクル中の最大値)と比較した心エコー検査に基づいた。75mm(患者9人中3人)又は85mm(患者9人中6人)のいずれかの直径の装置が、(平均)95.7分の処置で据え付けられ、X線透視装置の時間は平均25.5分要した。
Claims (23)
- 患者の心臓への経皮的な配置に適した拡張期復元装置であって、
末端部で中心ハブに接続し、半径方向に拡張可能で弾性を有する複数のリブと、
前記リブの基端部に設けられ、前記心臓の心室の壁の選択された領域に前記装置を固定するための固定要素とを備え、
前記リブは、心臓収縮期に前記心臓によって提供されるエネルギーを蓄積するとともに、心臓拡張期に前記心臓の前記心室の前記壁に弾性復元力を提供するように、前記心室の前記壁に固定するように設けられ、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - 前記リブに取り付けられた薄膜を備える
ことを特徴とする請求項1に記載の拡張期復元装置。 - さらに、前記中心ハブから前記装置の中心軸に沿って末端側に延びる接触部材を備え、
前記接触部材は、前記心室の壁から選択された距離だけ、前記装置の前記中心ハブを離隔するように設けられる
ことを特徴とする請求項1に記載の拡張期復元装置。 - さらに、前記中心ハブから前記装置の中心長軸に沿って基端側に延びる中空接続部材を備え、
前記接続部材は、配置カテーテルへの開放可能な接続のために設けられる
ことを特徴とする請求項1に記載の拡張期復元装置。 - さらに、心臓拡張期の選択された時点で、前記心室の前記壁に前記弾性復元力を解放して戻すように設けられた遅延解放バネ機構を備える
ことを特徴とする請求項1に記載の拡張期復元装置。 - 前記装置の非拘束直径は約25mmから約100mmである
ことを特徴とする請求項1に記載の拡張期復元装置。 - 前記薄膜を前記壁に密着させるために、前記リブの基端部近傍で前記リブに結合したリングを備える
ことを特徴とする請求項2に記載の拡張期復元装置。 - 前記接触部材は、前記壁に傷つけずに接触するように設けられる
ことを特徴とする請求項3に記載の拡張期復元装置。 - 前記接触部材は、前記壁に対して圧力を分散するように設けられた非外傷性の末端部を備える
ことを特徴とする請求項3に記載の拡張期復元装置。 - 患者の心臓の心室へ経皮的に配置されるように適用される拡張期復元装置であって、
末端部で中心ハブに結合し、半径方向に拡張可能な複数の弾性リブと、
前記リブの基端部に設けられ、前記心臓の前記心室の壁の選択された領域に前記装置を固定するための固定要素とを備え、
前記リブは、心臓拡張期に、前記心室の前記壁の移動を増大させるように適用され、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - 患者の心臓の心室へ経皮的に配置されるように適用される拡張期復元装置であって、
末端部で中心ハブに結合し、半径方向に拡張可能な複数の弾性リブと、
前記リブの前記基端部の各々に、前記心臓の心室内の壁の選択された領域に前記装置を固定するように設けられた1つ以上の固定要素とを備え、
前記リブは、前記壁を支持し、前記壁の圧力を低減するように設けられ、それによって、前記心臓の再形成を制限し、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - 患者の心臓へ経皮的に配置されるように適用される拡張期復元装置であって、
末端部で中心ハブに接続され、半径方向に拡張可能な複数の弾性リブと、
前記リブの基端部に設けられ、前記心臓の心室の壁の選択された領域に前記装置を固定するための固定要素とを備え、
前記リブは、前記心室に配置された場合に、前記心臓の心室の拡張期圧を低減させるように設けられ、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - 患者の心臓の心室へ経皮的に配置されるように適用される拡張期復元装置であって、
末端部で中心ハブに結合し、半径方向に拡張可能な複数のリブと、複数の前記リブに基端部で取り付けられた複数の固定要素とを備え、
前記固定要素は、前記心臓の心室の壁に固定装置を固定するように適用され、
前記装置は、前記心臓の前記心室の圧力−容積の関係を改善するために、前記心室の容積を低減するように適用され、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - 拡張期復元装置は、末端部で中心ハブに結合し、半径方向に拡張可能な複数のリブと、前記リブの基端部に設けられ、心臓の心室の壁の選択された領域に前記装置を固定するための固定要素とを備え、
前記装置は、経皮的に配置するように適用され、かつ、前記心室の領域を橋渡すように患者の心臓の心室内部に固定されるように適用され、
前記リブは、前記心室の拡張を補助するために、心臓収縮期に第1形状から第2形状に変形し、かつ、心室拡張期に前記第1形状に戻すように適用され、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。 - さらに、前記リブに取り付けられた薄膜を備える
ことを特徴とする請求項14に記載の装置。 - 前記装置の中心長軸に沿って前記中心ハブから末端側に拡張する接触部材を備え、
前記接触部材は、前記心室の壁から選択された距離だけ、前記装置の前記中心ハブを離間させるように適用される
ことを特徴とする請求項14に記載の装置。 - さらに、前記装置の中心長軸に沿って前記中心ハブから基端側に延びる中空接続部材を備え、
前記接続部材は、配置カテーテルに開放可能に接続するために適用される
ことを特徴とする請求項14に記載の装置。 - さらに、心臓拡張期の選択された時点で、前記心室の前記壁に前記弾性復元力を解放して戻すように設けられた遅延解放バネ機構を備える
ことを特徴とする請求項14に記載の装置。 - 前記装置の非拘束直径は約25mmから約100mmである
ことを特徴とする請求項14に記載の装置。 - さらに、前記薄膜を前記心室の壁に密着させるために、前記リブの基端部近傍で前記リブに結合したリングを備える
ことを特徴とする請求項15に記載の装置。 - 前記接触部材は、前記壁に傷つけずに接触するように設けられる
ことを特徴とする請求項16に記載の装置。 - 前記接触部材は、前記壁に対して圧力を分散するように設けられた非外傷性の末端部を備える
ことを特徴とする請求項16に記載の装置。 - 拡張期復元装置は、末端部で中心ハブに結合し、半径方向に拡張可能な複数のリブと、前記リブの基端部に設けられ、心臓の心室の壁の選択された領域に前記装置を固定するための固定要素とを備え、
前記装置は、経皮的に配置するように適用され、かつ、前記心室の領域を橋渡すように患者の心臓の心室内部に固定されるように適用され、
前記リブは、心臓収縮期にエネルギーを蓄積し、前記蓄積されたエネルギーを前記心室の壁に、心臓拍動のサイクルに同調して解放して戻すように適用され、
前記装置の非拘束直径は、拡張終期の前記心室の着床位置の直径より最小約10%から最大約60%まで大きく、前記リブは、前記心室の拡張終期圧を少なくとも5%減少させるのに十分な剛性を有する
ことを特徴とする拡張期復元装置。
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US11/640,469 | 2006-12-14 | ||
US11/640,469 US7674222B2 (en) | 1999-08-09 | 2006-12-14 | Cardiac device and methods of use thereof |
PCT/US2007/087497 WO2008076853A2 (en) | 2006-12-14 | 2007-12-13 | Cardiac device and methods of use thereof |
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JP2010512855A5 JP2010512855A5 (ja) | 2012-01-19 |
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AU (1) | AU2007333895A1 (ja) |
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- 2007-12-13 JP JP2009541604A patent/JP5461192B2/ja not_active Expired - Fee Related
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EP2091588A2 (en) | 2009-08-26 |
US8672827B2 (en) | 2014-03-18 |
CA2671974A1 (en) | 2008-06-26 |
AU2007333895A1 (en) | 2008-06-26 |
WO2008076853A3 (en) | 2008-10-02 |
WO2008076853A2 (en) | 2008-06-26 |
US7674222B2 (en) | 2010-03-09 |
US20100121132A1 (en) | 2010-05-13 |
JP2010512855A (ja) | 2010-04-30 |
EP2091588A4 (en) | 2010-05-26 |
US20070161846A1 (en) | 2007-07-12 |
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LAPS | Cancellation because of no payment of annual fees |