JP4685630B2 - 血管外組織構造をリモデリングするための方法および装置 - Google Patents
血管外組織構造をリモデリングするための方法および装置 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2445—Annuloplasty rings in direct contact with the valve annulus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2451—Inserts in the coronary sinus for correcting the valve shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2466—Delivery devices therefor
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- Cardiology (AREA)
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- Animal Behavior & Ethology (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
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Description
(技術分野)
本発明は、維管束外解剖学的構造をリモデリングするための血管内補綴物に関する。
拡張心筋症は、冠動脈疾患および高血圧など、心筋機能を損なう多くの異なる疾患プロセスの結果として生じる。左心室は拡大し、駆出分画は減少する。結果として生じる肺静脈圧の上昇および心拍出量の減少は、鬱血性心不全の原因になる。僧帽弁輪および左心室腔の拡大は、僧帽弁機能不全を生じる。その結果、過負荷が生じて筋障害を悪化させ、進行性肥大を引き起こし、僧帽弁閉鎖不全を悪化させる。
本発明の一態様により、冠状静脈洞に隣接する僧帽弁輪をリモデリングするための医療装置を提供する。この装置は、近位端および遠位端を含む長形の本体を備える。長形の本体は、冠状静脈洞の少なくとも一部分に経管的に供給するための第1の可撓性構成から、僧帽弁輪をリモデリングするための第2構成に移動可能である。この医療装置は、長形の本体に取り付けられた形成要素であって、長形の本体を第1供給構成から第2リモデリング構成まで操作するための形成要素も備える。第2のリモデリング構成における長形の本体は、少なくとも第1方向に凹状の第1曲線と、第2方向に凸状の第2曲線とを含む。
本発明の好ましい実施態様は、心臓の冠状静脈系内に経皮的に導入されて配置されるデバイスを使用して、僧帽弁弁輪形成を実施し、左心室をリモデリングするための方法および装置を含む。このデバイスは、僧帽弁輪および左心室上に圧縮力を加えて、僧帽弁閉鎖不全の重大度および左心室腔のサイズを減少させる。したがって、このデバイスは、僧帽弁輪の縮小、および左心室の心臓拡張の制約を可能にし、しかも、開放胸部外科手術に関連する死亡率およびその他の危険性を伴わない。その他の詳細は、2002年1月30に出願された親出願番号第10/066,302号に開示されており、この出願の開示事項は、引用することにより全体を本明細書に援用する。
Claims (21)
- 冠状静脈洞に隣接する僧帽弁輪をリモデリングするための医療装置であって、
近位端、遠位端、近位部分、中心部分および遠位部分を有する長形の本体であって、該冠状静脈洞の少なくとも1部分に経管的に供給するための第1の可撓性構成から、該僧帽弁輪をリモデリングするための第2構成に移動可能な長形の本体と、
該長形の本体を該第1供給構成から該第2リモデリング構成まで操作するために該長形の本体に取り付けられる形成要素とを備え、
該第2リモデリング構成において、該長形の本体の該近位部分および該遠位部分が、第1の方向で凹状であり、該長形の本体の該中心部分が、第2の方向において凹状であり、
該形成要素の少なくとも第1部分が該本体内に延在し、該形成要素の第2部分が該本体の外側に沿って延在する、医療装置。 - 前記長形の本体が、複数の横断スロットを内部に有する管を備える、請求項1に記載の医療装置。
- 前記本体を前記第2構成に保持するためのロックをさらに備える、請求項1〜2の何れか1項に記載の医療装置。
- 前記装置が、前記形成要素の少なくとも1部分の近位の後退に応じて、前記供給構成から前記リモデリング構成に移動可能である、請求項1〜3の何れか1項に記載の医療装置。
- 前記装置が、前記形成要素の少なくとも1部分の遠位の前進に応じて埋込み構成から前記リモデリング構成に移動可能である、請求項1〜4の何れか1項に記載の医療装置。
- 血管内のある部位に係合するための少なくとも1個の固定装置をさらに備える、請求項1〜5の何れか1項に記載の医療装置。
- 前記固定装置が、前記血管壁を穿孔するための少なくとも1個の羽枝を備える、請求項6に記載の医療装置。
- 第1組織固定装置を近位端に備え、第2組織固定装置を遠位端に備える、請求項6に記載の医療装置。
- 前記装置が、10cm以下の軸方向長さを有する、請求項1〜8の何れか1項に記載の医療装置。
- 前記装置を通る最大断面寸法が10mm以下である、請求項9に記載の医療装置。
- 患者の体内に配置するためのインプラントであって、
近位部分、中心部分および遠位部分を有する長形の可撓性本体と、
該本体の少なくとも近位部分および遠位部分を通って延在する形成要素であって、該形成要素の少なくとも第1部分が該本体内に延在し、該形成要素の第2部分が該本体の外側に沿って延在する、形成要素と、
該本体を展開カテーテルに取外し可能に取り付けるための該本体上の取外し式カップリングとを備え、
該形成要素の操作により、該中心部分が偏向し、その結果、該長形の本体の該近位部分および該遠位部分が、第1の方向で凹状になり、該長形の本体の該中心部分が、第2の方向において凹状になる、インプラント。 - 前記本体が管状壁を備える、請求項11に記載のインプラント。
- 前記管状壁が、前記中心部分の第1面に沿って非圧縮性である、請求項12に記載のインプラント。
- 前記中心部分の第2面に沿った壁内に複数の空隙を備え、その結果、該第2面が軸方向に短縮または伸張することが可能な、請求項13に記載のインプラント。
- 少なくともいくつかの前記空隙が、前記壁を貫通して、ほぼ長手方向を横断して延在するスロットを含む、請求項14に記載のインプラント。
- 少なくとも10個の横断スロットを前記第2面の壁に含む、請求項15に記載のインプラント。
- 少なくとも20個の横断スロットを前記第2面の壁に含む、請求項16に記載のインプラント。
- 前記形成要素が軸方向に移動可能な要素を備える、請求項11に記載のインプラント。
- 前記形成要素がプルワイヤを備える、請求項18に記載のインプラント。
- 前記形成要素の操作が、前記本体を「w」構成状に再賦形する、請求項1〜19の何れか1項に記載のインプラント。
- 前記本体上にコーティングをさらに含む、請求項1〜20の何れか1項に記載のインプラント。
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US42928102P | 2002-11-25 | 2002-11-25 | |
US10/634,655 US7011682B2 (en) | 2000-01-31 | 2003-08-05 | Methods and apparatus for remodeling an extravascular tissue structure |
PCT/US2003/037727 WO2004047677A2 (en) | 2002-11-25 | 2003-11-24 | Methods and apparatus for remodeling an extravascular tissue structure |
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