JP6131260B2 - 能動的に制御可能なステント、ステントグラフト、心臓弁、およびそれらを制御する方法 - Google Patents
能動的に制御可能なステント、ステントグラフト、心臓弁、およびそれらを制御する方法 Download PDFInfo
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- JP6131260B2 JP6131260B2 JP2014537354A JP2014537354A JP6131260B2 JP 6131260 B2 JP6131260 B2 JP 6131260B2 JP 2014537354 A JP2014537354 A JP 2014537354A JP 2014537354 A JP2014537354 A JP 2014537354A JP 6131260 B2 JP6131260 B2 JP 6131260B2
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- 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
- A61F2002/9534—Instruments specially adapted for placement or removal of stents or stent-grafts for repositioning of 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
- A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
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- A—HUMAN NECESSITIES
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
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- A—HUMAN NECESSITIES
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
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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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0091—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
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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
- 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
- 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
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/0006—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting angular orientation
-
- 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
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/0007—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting length
-
- 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
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/001—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting a diameter
-
- 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
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/006—Additional features; Implant or prostheses properties not otherwise provided for modular
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Description
例えば、本願発明は以下の項目を提供する。
(項目1)
外科用移植片であって、
所与の形状に設定される形状記憶材料の自己拡張型ステントであって、壁厚を伴う壁を有する、自己拡張型ステントと、
前記自己拡張型ステントの選択的に調整可能なアセンブリであって、調整可能な要素を有し、前記自己拡張型ステントの少なくとも一部分において構成の変化を強制するように操作可能であり、前記調整可能な要素は、前記自己拡張型ステントの前記壁厚内に少なくとも部分的に位置する、選択的に調整可能なアセンブリと、を備える、外科用移植片。
(項目2)
前記調整可能な要素は、実質的に前記自己拡張型ステントの前記壁厚内に位置する、1に記載の外科用移植片。
(項目3)
前記調整可能な要素は、前記壁厚内に位置する、項目1に記載の外科用移植片。
(項目4)
前記ステントは、外面および内面を有し、
前記ステントの前記外面および前記ステントの前記内面は、前記壁厚を画定し、
前記調整可能な要素は、前記外面と内面との間に位置する、項目1に記載の外科用移植片。
(項目5)
前記壁厚は、半径方向範囲を有し、
前記調整可能な要素は、前記壁厚の前記半径方向範囲を縦方向に通過する、項目1に記載の外科用移植片。
(項目6)
前記調整可能な要素は、前記自己拡張型ステントの前記壁厚内に完全に位置する、項目1に記載の外科用移植片。
(項目7)
前記選択的に調整可能なアセンブリは、前記自己拡張型ステントに取り付けられる、項目1に記載の外科用移植片。
(項目8)
前記調整可能な要素は、前記自己拡張型ステントの少なくとも前記一部分で、直径、円周、および周辺の変化のうちの少なくとも1つを強制するように操作可能である、項目1に記載の外科用移植片。
(項目9)
前記調整可能な要素は、前記自己拡張型ステントにおいて構成の変化を強制するように操作可能である、項目1に記載の外科用移植片。
(項目10)
前記自己拡張型ステントは、実質的に円筒として形成され、前記構成の変化は、前記円筒の直径、円周、および周辺のうちの少なくとも1つの拡張である、項目1に記載の外科用移植片。
(項目11)
外科用移植片であって、
所与の形状に設定される形状記憶材料の自己拡張型ステントであって、壁厚および縦方向範囲を有する壁を有し、前記壁は、前記縦方向範囲に沿って、前記壁厚内で少なくとも1つの駆動ねじ管腔を画定する、自己拡張型ステントと、
前記自己拡張型ステントの選択的に調整可能なアセンブリであって、少なくとも1つの駆動ねじを備える調整可能な要素を有し、前記自己拡張型ステントの少なくとも一部分において構成の変化を強制するように操作可能であり、前記調整可能な要素は、前記自己拡張型ステントの、前記調整可能な要素の、前記壁厚内で少なくとも部分的に位置する、前記少なくとも1つの駆動ねじ管腔は、前記少なくとも1つの駆動ねじをその中で受容するように成形され、前記少なくとも1つの駆動ねじは、前記少なくとも1つの駆動ねじ管腔内で回転可能に移動可能である、選択的に調整可能なアセンブリと、を備える、外科用移植片。
(項目12)
前記少なくとも1つの駆動ねじは、近位端部および縦軸を有し、
前記調整可能な要素は、前記近位端部に固定され、前記縦軸に沿ってそこから離れて延在する、少なくとも1つの駆動ねじカプラを備える、項目11に記載の外科用移植片。
(項目13)
前記少なくとも1つの駆動ねじカプラは、前記少なくとも1つの駆動ねじを回転させるためのツールを係合するように成形される、カップルを有する、項目11に記載の外科用移植片。
(項目14)
前記少なくとも1つの駆動ねじ管腔は、実質的に前記自己拡張型ステントの前記壁厚内に位置する、項目11に記載の外科用移植片。
(項目15)
前記少なくとも1つの駆動ねじ管腔は、前記壁厚内に位置する、項目11に記載の外科用移植片。
(項目16)
前記ステントは、外面および内面を有し、
前記ステントの前記外面および前記ステントの前記内面は、前記壁厚を画定し、
前記少なくとも1つの駆動ねじ管腔は、前記外面と内面との間に位置する、項目11に記載の外科用移植片。
(項目17)
前記壁厚は、半径方向範囲を有し、
前記調整可能な要素は、前記壁厚の前記半径方向範囲を縦方向に通過する、項目11に記載の外科用移植片。
(項目18)
前記少なくとも1つの駆動ねじ管腔は、前記自己拡張型ステントの前記壁厚内に完全に位置する、項目11に記載の外科用移植片。
(項目19)
前記少なくとも1つの駆動ねじ管腔は、雌ねじを有する部分を有し、
前記少なくとも1つの駆動ねじは、前記雌ねじに対応する雄ねじを有する、項目11に記載の外科用移植片。
(項目20)
前記少なくとも1つの駆動ねじ管腔は、遠位管腔部分および近位管腔部分を含む、軸方向に位置合わせされ、縦方向に分離した1対の管腔部分であり、
前記少なくとも1つの駆動ねじは、前記2つの部分を、
互いに向かって、および
互いから離れて、のうちの少なくとも1つで移動させるように操作可能である、項目11に記載の外科用移植片。
(項目21)
前記壁厚は、複数の前記駆動管腔を画定し、それぞれが、前記遠位管腔部分および前記近位管腔部分を含む、前記軸方向に位置合わせされ、縦方向に分離した1対の管腔部分を有し、
前記調整可能な要素は、前記複数の前記駆動ねじ管腔の中で回転可能に移動可能である複数の駆動ねじを備える、項目20に記載の外科用移植片。
(項目22)
前記少なくとも1つの駆動ねじは、トルクが前記少なくとも1つの駆動ねじに与えられるまで、前記少なくとも1つの駆動ねじを摩擦によって回転可能で静止状態に保持する、雄ねじを有する、項目11に記載の外科用移植片。
(項目23)
前記自己拡張型ステントの少なくとも前記一部分において構成の変化を強制した後に、前記調整可能な要素は、前記構成の変化を保持する、項目1に記載の外科用移植片。
(項目24)
前記自己拡張型ステントの少なくとも前記一部分において構成の変化を強制した後に、前記調整可能な要素は、前記構成の変化を保持する、項目11に記載の外科用移植片。
(項目25)
前記調整可能な要素は、前記自己拡張型ステントの少なくとも前記一部分で、直径、円周、および周辺の変化のうちの少なくとも1つを強制するように操作可能である、項目11に記載の外科用移植片。
(項目26)
前記形状記憶材料は、前記所与の形状に熱設定され、
圧縮され、解放された後に、自己拡張して前記所与の形状に戻るように操作可能である、および
拡張され、解放された後に、自己収縮して前記所与の形状に戻るように操作可能である、のうちの少なくとも1つである、項目1に記載の外科用移植片。
Claims (20)
- 外科用移植片であって、
形状記憶材料の部分片から一体的に形成されている複数の格子セグメントを含む自己拡張型ステントであって、前記自己拡張型ステントは、壁厚を有する壁を有する、自己拡張型ステントと、
前記自己拡張型ステントにおける選択的に調整可能なアセンブリであって、前記選択的に調整可能なアセンブリは、調整可能な要素を有し、前記自己拡張型ステントの少なくとも一部分において構成の変化を強制するように動作可能であり、前記調整可能な要素は、前記自己拡張型ステントの前記壁厚内に位置する、選択的に調整可能なアセンブリと
を備える、外科用移植片。 - 前記ステントは、外面および内面を有し、
前記ステントの前記外面および前記ステントの前記内面は、前記壁厚を画定し、
前記調整可能な要素は、前記外面と前記内面との間に位置する、請求項1に記載の外科用移植片。 - 前記壁厚は、半径方向範囲を有し、
前記調整可能な要素は、前記壁厚の前記半径方向範囲を縦方向に通過する、請求項1に記載の外科用移植片。 - 前記選択的に調整可能なアセンブリは、前記自己拡張型ステントに取り付けられている、請求項1に記載の外科用移植片。
- 前記自己拡張型ステントは、円筒として実質的に成形されており、前記調整可能な要素は、前記自己拡張型ステントの少なくとも前記一部分で、直径の変化および円周の変化のうちの少なくとも一方を強制するように動作可能である、請求項1に記載の外科用移植片。
- 前記調整可能な要素は、前記自己拡張型ステントにおいて構成の変化を強制するように動作可能である、請求項1に記載の外科用移植片。
- 前記自己拡張型ステントは、円筒として実質的に成形されており、前記構成の変化は、前記円筒の直径および円周のうちの少なくとも一方の拡張である、請求項1に記載の外科用移植片。
- 外科用移植片であって、
形状記憶材料の部分片から一体的に形成されている複数の格子セグメントを含む自己拡張型ステントであって、前記自己拡張型ステントは、壁厚および縦方向範囲を有する壁を有し、前記壁は、前記縦方向範囲に沿って、前記壁厚内で少なくとも1つの駆動ねじ管腔を画定する、自己拡張型ステントと、
前記自己拡張型ステントにおける選択的に調整可能なアセンブリであって、前記選択的に調整可能なアセンブリは、少なくとも1つの駆動ねじを備える調整可能な要素を有し、前記自己拡張型ステントの少なくとも一部分において構成の変化を強制するように動作可能であり、前記調整可能な要素は、前記自己拡張型ステントの前記壁厚内に位置し、前記少なくとも1つの駆動ねじ管腔は、前記少なくとも1つの駆動ねじをその中で受容するように成形されており、前記少なくとも1つの駆動ねじは、前記少なくとも1つの駆動ねじ管腔内で回転可能に移動可能である、選択的に調整可能なアセンブリと
を備える、外科用移植片。 - 前記少なくとも1つの駆動ねじは、近位端部および縦軸を有し、
前記調整可能な要素は、少なくとも1つの駆動ねじカプラを備え、前記少なくとも1つの駆動ねじカプラは、前記近位端部に固定され、かつ、前記縦軸に沿ってそこから離れて延在する、請求項8に記載の外科用移植片。 - 前記少なくとも1つの駆動ねじカプラは、前記少なくとも1つの駆動ねじを回転させるためのツールを係合するように成形されているカップルを有する、請求項8に記載の外科用移植片。
- 前記ステントは、外面および内面を有し、
前記ステントの前記外面および前記ステントの前記内面は、前記壁厚を画定し、
前記少なくとも1つの駆動ねじ管腔は、前記外面と前記内面との間に位置する、請求項8に記載の外科用移植片。 - 前記壁厚は、半径方向範囲を有し、
前記調整可能な要素は、前記壁厚の前記半径方向範囲を縦方向に通過する、請求項8に記載の外科用移植片。 - 前記少なくとも1つの駆動ねじ管腔は、雌ねじを有する部分を有し、
前記少なくとも1つの駆動ねじは、前記雌ねじに対応する雄ねじを有する、請求項8に記載の外科用移植片。 - 前記少なくとも1つの駆動ねじ管腔は、軸方向に位置合わせされ、かつ、縦方向に分離した1対の管腔部分であり、前記1対の管腔部分は、遠位管腔部分および近位管腔部分を含み、
前記少なくとも1つの駆動ねじは、
互いに向かって、および
互いから離れて、のうちの少なくとも一方で前記2つの部分を移動させるように動作可能である、請求項8に記載の外科用移植片。 - 前記壁厚は、複数の前記駆動ねじ管腔を画定し、前記複数の前記駆動ねじ管腔のそれぞれは、前記軸方向に位置合わせされ、かつ、縦方向に分離した1対の管腔部分を有し、前記1対の管腔部分は、前記遠位管腔部分および前記近位管腔部分を含み、
前記調整可能な要素は、前記複数の前記駆動ねじ管腔の中で回転可能に移動可能である複数の駆動ねじを備える、請求項14に記載の外科用移植片。 - 前記少なくとも1つの駆動ねじは、トルクが前記少なくとも1つの駆動ねじに与えられるまで、前記少なくとも1つの駆動ねじを摩擦によって回転可能で静止状態に保持する雄ねじを有する、請求項8に記載の外科用移植片。
- 前記自己拡張型ステントの少なくとも前記一部分において構成の変化を強制した後に、前記調整可能な要素は、前記構成の変化を保持する、請求項1に記載の外科用移植片。
- 前記自己拡張型ステントの少なくとも前記一部分において構成の変化を強制した後に、前記調整可能な要素は、前記構成の変化を保持する、請求項8に記載の外科用移植片。
- 前記自己拡張型ステントは、円筒として実質的に成形されており、前記調整可能な要素は、前記自己拡張型ステントの少なくとも前記一部分で、直径の変化および円周の変化のうちの少なくとも一方を強制するように動作可能である、請求項8に記載の外科用移植片。
- 前記形状記憶材料は、所与の形状に熱設定され、
前記形状記憶材料は、圧縮され、解放された後に、自己拡張して前記所与の形状に戻るように動作可能である、請求項1に記載の外科用移植片。
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US13/656,717 US9566178B2 (en) | 2010-06-24 | 2012-10-21 | Actively controllable stent, stent graft, heart valve and method of controlling same |
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