JP5000656B2 - フレア展開ステント、ならびにこれを製造・使用する装置および方法 - Google Patents
フレア展開ステント、ならびにこれを製造・使用する装置および方法 Download PDFInfo
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- JP5000656B2 JP5000656B2 JP2008528119A JP2008528119A JP5000656B2 JP 5000656 B2 JP5000656 B2 JP 5000656B2 JP 2008528119 A JP2008528119 A JP 2008528119A JP 2008528119 A JP2008528119 A JP 2008528119A JP 5000656 B2 JP5000656 B2 JP 5000656B2
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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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
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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
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/821—Ostial stents
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91525—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/005—Rosette-shaped, e.g. star-shaped
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0018—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0026—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in surface structures
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
このステントは、第1端および第2端、第1の部分、ならびに第1の部分に連結された第2の部分を有する。拡張可能部品を拡張させて第1の部分をフレア展開させ、第1の部分がフレア展開するとき、第2の部分は十分な剛性を有し、拡張に対する抵抗力を与える。拡張可能部品を拡張させて、第2の部分を拡張状態に拡張させることにより、第1の部分をさらに拡張させる。1つの実施形態においては、第2の部分は、遠位本体部と、第1の部分を遠位本体部に連結する近位本体部とを有する。近位本体部は、第1のフレア展開部がフレア展開した際に、膨張に対抗する抵抗力を与えるような剛性、半径方向強度、および/または他の特性を有する。
ガイドカテーテル160をさらに挿入すると、近位バルーン122aを遠位方向に押圧して、装置110が小孔90内に自動的に挿入されるようにしてもよい。
軸方向部材および湾曲部材および/またはリンクの幅と厚みは、ステントの長さに沿って異なる。図示のように、軸方向部材および湾曲部材およびリンクの厚みは、コラム1からコラム9に至り小さくなっている。こうしてコラム1からコラム9まで、体内管腔の支持力を効率的に低減するとともに、可撓性を増大させている。
Claims (19)
- 管状部材からなるステントであって、
管状部材は、第1端および第2端を有し、これらの間に長手方向軸を形成し、第1端と第2端の間に配設された複数のセルを有し、収縮状態から中間状態を経て拡張状態に拡張可能であり、
このステントは、収縮状態から拡張状態に拡張するとき、外側にフレア展開する第1の端部部品と、第1の端部部品に隣接し、複数の連結部を介して第1の端部部品に連結された第2の端部部品とを有し、
第1の端部部品は、曲がりくねったパターンを有する軸方向部材および湾曲部材を含む第1および第2のバンドを有し、
第1および第2のバンドは、収縮状態から中間状態に拡張するとき、第1のバンドの第1の軸方向部材が長手方向軸とほぼ平行な方向からほぼ半径方向外側に向き、かつ、拡張状態にさらに拡張するとき、第1の軸方向部材がほぼ周囲方向に向き、第2のバンドの第2の軸方向部材がほぼ横方向に向くように連結され、
連結部は、第1の端部部品が外側にフレア展開できるように、第1の端部部品の軸方向部材および湾曲部材に比して比較的に高い可撓性を有することを特徴とするステント。 - 管状部材からなるステントであって、
管状部材は、第1端および第2端を有し、これらの間に長手方向軸を形成し、第1端と第2端の間に配設された複数の環状バンドを有し、収縮状態から中間状態を経て拡張状態に拡張可能であり、
このステントは、
収縮状態において、長手方向軸とほぼ平行に延び、湾曲部材を介して連結された軸方向部材をそれぞれ含む第1および第2のバンドを有し、収縮状態から中間状態に拡張するとき、外側にフレア展開する第1の端部部品と、
第1の端部部品に隣接する第2の端部部品と、
第2の端部部品から第1の端部部品の第2のバンドに延びる複数の連結部であって、中間状態において第2のバンドの軸方向部材がほぼ半径方向外側に向くように、第1および第2のバンドの軸方向部材および湾曲部材に比して比較的に高い可撓性を有する複数の連結部とを備え、
第1のバンドの湾曲部材が変形して、第1のバンドの軸方向部材がほぼ周囲方向に向いて、拡張状態におけるステントの第1端を形成することを特徴とするステント。 - 主流体内管腔および支流体内管腔の間で連通する小孔を処置するための装置であって、
近位端と、主流体内管腔および支流体内管腔の内部に案内されるような大きさの遠位端とを有する伸張部材と、
第1の収縮態様から第2のフレア展開態様および第3の拡張態様に拡張可能な遠位端にある拡張可能部品と、
遠位端にあって拡張可能部品を覆うステントとを備え、
このステントは、第1の端部部品と、複数の可撓性連結部を介して第1の端部部品に連結された第2の端部部品とを有し、
第1の端部部品は第1および第2の環状バンドを有し、
各環状バンドは、収縮態様にあっては長手方向軸にほぼ平行に延びる、曲がりくねった軸方向部材と、曲がりくねったパターンを有する湾曲部材とを有し、中間状態に拡張するとき、第1のバンドの第1の軸方向部材がほぼ半径方向外側に向き、かつ、拡張状態にさらに拡張するとき、第1の軸方向部材がほぼ周囲方向に向き、第2のバンドの第2の軸方向部材がほぼ横方向に向くように連結され、
拡張可能部品が第2のフレア展開態様に拡張するとき、ステントの第2の端部部品は拡張せずに、第1の端部部品が中間状態に拡張し、
拡張可能部品が第3のフレア展開態様に拡張するとき、第2の端部部品が半径方向外側に拡張するとともに、第1のフレア展開部が半径方向外側にさらに拡張することを特徴とする装置。 - 請求項3に記載の装置であって、
拡張可能部品は、ステントの第1の端部部品に覆われた第1のバルーンと、少なくともステントの第2の部品に覆われた第2のバルーンとを有し、
第1のバルーンは、第2のバルーンとは独立して膨張可能であり、
第2のフレア展開状態は第1のバルーンの拡張により実現されることを特徴とする装置。 - 請求項3に記載の装置であって、
複数の可撓性連結部は、第2のバンドをステントの第2の端部部品に連結することを特徴とする装置。 - 請求項5に記載の装置であって、
湾曲部材は第1の軸方向部材より小さい耐力を有することを特徴とすることを特徴とする装置。 - 請求項5に記載の装置であって、
第1および第2の軸方向部材は、互いにほぼ同等の長さを有することを特徴とする装置。 - 請求項5に記載の装置であって、
可撓性連結部は所定の厚みおよび幅を有する曲線部材からなり、
曲線部材の厚みおよび幅の少なくとも一方は、第1の端部部品の軸方向部材および湾曲部材の厚みおよび幅より小さいことを特徴とする装置。 - 主流体内管腔および支流体内管腔の間で連通する小孔を処置するための装置であって、
近位端と、主流体内管腔および支流体内管腔の内部に案内されるような大きさの遠位端とを有する伸張部材と、
第1の収縮態様から第2のフレア展開態様および第3の拡張態様に拡張可能な遠位端にある拡張可能部品と、
遠位端にあって拡張可能部品を覆うステントとを備え、
このステントは、第1の端部部品と、複数の可撓性連結部を介して第1の端部部品に連結された第2の端部部品とを有し、
第1の端部部品は第1および第2の環状バンドを有し、
第1の環状バンドは第1端を有し、第2の環状バンドは第1の環状バンドおよび可撓性連結部に連結され、
各環状バンドは、ステントの周囲に沿って延びる湾曲部材に連結された曲がりくねったパターンを有する軸方向部材を有し、
湾曲部材は軸方向部材より小さい耐力を有し、
第1および第2の環状バンドの隣接する湾曲部材が互いに連結され、
第1の環状バンドの軸方向部材は、拡張可能部品が第1の収縮態様から第2のフレア展開態様に拡張するとき、長手方向軸にほぼ平行に延びるほぼ軸方向からほぼ半径方向外側に配向され、拡張可能部品が第3の拡張態様に拡張するとき、ほぼ半径方向外側方向からほぼ周囲方向に配向され、
第2の環状バンドの軸方向部材は、拡張可能部品が第1の収縮態様から第2のフレア展開態様に拡張するとき、長手方向軸にほぼ平行に延びるほぼ軸方向からほぼ半径方向外側に配向され、拡張可能部品が第2のフレア展開態様から第3の拡張態様にさらに拡張するとき、ほぼ半径方向外側方向に拡張することを特徴とする装置。 - 請求項9に記載の装置であって、
拡張可能部品は、ステントの第1の端部部品に覆われた第1のバルーンと、少なくともステントの第2の部品に覆われた第2のバルーンとを有し、
第1のバルーンは、第2のバルーンとは独立して膨張可能であり、
第1の収縮態様は、第1および第2のバルーンの収縮状態により実現され、
第2のフレア展開状態は、第1のバルーンの拡張により実現され、
第3の拡張態様は、第2のバルーンの少なくとも部分的な拡張により実現されることを特徴とする装置。 - 管状部材からなるステントであって、
管状部材は、第1端および第2端を有し、これらの間に長手方向軸を形成し、第1端と第2端の間に配設された複数のセルを有し、収縮状態から中間状態を経て拡張状態に拡張可能であり、
このステントは、管状部材が収縮状態から中間状態に拡張したとき、外側にフレア展開する第1の端部部品を備え、
第1の端部部品は、第1端にある第1の環状バンドと、第1の環状バンドに連結された第2の環状バンドとを有し、
各環状バンドは、ステントの周囲に沿って延びる湾曲部材に連結された曲がりくねったパターンを有する軸方向部材を有し、
湾曲部材は軸方向部材より小さい耐力を有し、
第1および第2の環状バンドの隣接する湾曲部材が互いに連結され、
第1の環状バンドの軸方向部材は、収縮状態から中間状態に拡張するとき、長手方向軸にほぼ平行に延びるほぼ軸方向からほぼ半径方向外側に配向され、中間状態から拡張状態にさらに拡張するとき、ほぼ半径方向外側方向からほぼ周囲方向に配向され、
第2の環状バンドの軸方向部材は、収縮状態から中間状態に拡張するとき、長手方向軸にほぼ平行に延びるほぼ軸方向からほぼ半径方向外側に配向され、
このステントはさらに、
第1の端部部品に隣接し、半径方向外側に拡張可能な第2の端部部品と、
第2の端部部品を第1の端部部品の第2の環状バンドに連結する複数の連結部であって、第2の環状バンドの軸方向部材がほぼ半径方向外側に延びるように、第1および第2の環状バンドの軸方向部材および湾曲部材より比較的に高い可撓性を有する複数の連結部とを備えることを特徴とするステント。 - 請求項11に記載のステントであって、
可撓性連結部は所定の厚みおよび幅を有し、その厚みおよび幅の少なくとも一方は、第1および第2の環状バンドの軸方向部材および湾曲部材の厚みおよび幅より小さいことを特徴とするステント。 - 請求項11に記載のステントであって、
第2の環状バンドの湾曲部材に隣接する第1の環状バンドの湾曲部材は、長手方向軸にほぼ平行に延びる連結部を介して一体に連結されることを特徴とするステント。 - 請求項9に記載の装置であって、
拡張可能部品は、ステントの第1の端部部品に覆われた第1のバルーンと、少なくともステントの第2の部品に覆われた第2のバルーンとを有し、
第1のバルーンは、第2のバルーンとは独立して膨張可能であり、
第2のフレア展開状態は第1のバルーンの拡張により実現されることを特徴とする装置。 - 請求項4または14に記載の装置であって、
第1のバルーンは、第2のフレア展開態様において、収縮状態からほぼ球形の拡張状態に拡張可能であり、
第2のバルーンは、第3の拡張態様において、収縮状態からほぼ円筒形の拡張状態に拡張可能であることを特徴とする装置。 - 請求項4、14、または15に記載の装置であって、
第1のバルーンは、半弾性または実質的な弾性を有するバルーンを含むことを特徴とする装置。 - 請求項16に記載の装置であって、
第2のバルーンは、第1のバルーンより小さい弾性を有することを特徴とする装置。 - 請求項16に記載の装置であって、
第2のバルーンは、実質的な非弾性バルーンを含むことを特徴とする装置。 - 請求項1〜18のいずれか1に記載の装置であって、
連結部は、厚みおよび幅を有する曲線部材からなり、
曲線部材の厚みおよび幅の少なくとも一方は、第1のフレア展開部を構成する部材の厚みおよび幅より小さいことを特徴とする装置。
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| US71052105P | 2005-08-22 | 2005-08-22 | |
| US60/710,521 | 2005-08-22 | ||
| US72770305P | 2005-10-17 | 2005-10-17 | |
| US60/727,703 | 2005-10-17 | ||
| US75760006P | 2006-01-09 | 2006-01-09 | |
| US60/757,600 | 2006-01-09 | ||
| US74388006P | 2006-03-28 | 2006-03-28 | |
| US60/743,880 | 2006-03-28 | ||
| US74517706P | 2006-04-19 | 2006-04-19 | |
| US60/745,177 | 2006-04-19 | ||
| PCT/US2006/032938 WO2007024964A1 (en) | 2005-08-22 | 2006-08-22 | Flared stents and apparatus and methods for making and using them |
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| JP2009505742A JP2009505742A (ja) | 2009-02-12 |
| JP2009505742A5 JP2009505742A5 (ja) | 2009-10-08 |
| JP5000656B2 true JP5000656B2 (ja) | 2012-08-15 |
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| JP2008528119A Active JP5000656B2 (ja) | 2005-08-22 | 2006-08-22 | フレア展開ステント、ならびにこれを製造・使用する装置および方法 |
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| US (6) | US7582111B2 (ja) |
| EP (1) | EP1933777B1 (ja) |
| JP (1) | JP5000656B2 (ja) |
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| WO (1) | WO2007024964A1 (ja) |
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- 2006-08-22 JP JP2008528119A patent/JP5000656B2/ja active Active
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| US20190133800A1 (en) | 2019-05-09 |
| EP1933777B1 (en) | 2017-06-14 |
| WO2007024964A1 (en) | 2007-03-01 |
| US8702777B2 (en) | 2014-04-22 |
| US11911304B2 (en) | 2024-02-27 |
| US10973666B2 (en) | 2021-04-13 |
| CA2619429A1 (en) | 2007-03-01 |
| US20070073376A1 (en) | 2007-03-29 |
| EP1933777A1 (en) | 2008-06-25 |
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