JPH10328312A - 冠状ステント - Google Patents

冠状ステント

Info

Publication number
JPH10328312A
JPH10328312A JP13405398A JP13405398A JPH10328312A JP H10328312 A JPH10328312 A JP H10328312A JP 13405398 A JP13405398 A JP 13405398A JP 13405398 A JP13405398 A JP 13405398A JP H10328312 A JPH10328312 A JP H10328312A
Authority
JP
Japan
Prior art keywords
stent
screen
coronary stent
connector
mesh
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13405398A
Other languages
English (en)
Inventor
Oepen Randolf Von
オーペン ランドルフ，フォン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jomed Implantate GmbH
Original Assignee
Jomed Implantate GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8040554&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH10328312(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jomed Implantate GmbH filed Critical Jomed Implantate GmbH
Publication of JPH10328312A publication Critical patent/JPH10328312A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • A61F2250/0029—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 bending or flexure capacity

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

(57)【要約】 【課題】 単純な構造で、容易に製造できるとともに安
全に使用でき、しかも十分に柔軟で、かつ半径方向の強
い力をかけたり受けたりすることができるようにする。 【解決手段】 このステントは、壁が網構造を持つ管状
胴体２を含むとともに、網構造が網により構成される複
数の隣接隔室を含んでおり、胴体２がその前端３に柔軟
性先端部４を有している。

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、冠状ステント、特
に、壁が網構造を持つ管状胴体を含むとともに、網構造
が網により構成される複数の隣接隔室を含む冠状ステン
トに関する。
【０００２】
【従来の技術】従来から種々の異なるタイプの冠状ステ
ントが知られている。ステントは物理的に適合する物質
からできた血管補綴物を形成する。ステント又はステン
ト補綴物は、血管又は他の身体のオリフィスを拡張する
ために、さらに前述の血管を拡張した状態に維持するた
めに使用される。この目的のために、ステントは非拡張
状態で患者の身体に配置され、次に適当な手段、例えば
バルーンカテーテルで拡張される。拡張状態では、ステ
ントの個々の網部分はステントが永続的に拡張した形を
続けるように変形される。
【０００３】この様なタイプのステントは例えばドイツ
実用新案登録第29702671号に記載されている。ステント
を構成する場合、ステントは非拡張状態で患者の身体に
導入して配置できる程充分に小さい直径を持たねばなら
ないという重要な問題がある。ステントは、例えば血管
の形をたどる事ができるように、ある程度縦軸方向に沿
って柔軟でなければならない。拡張状態では、ステント
は外径がかなり大きくなるように拡張されねばならな
い。この様な拡張は、裂け目又はそれと同様のものが形
成されないように個々の網部分を変形する事により達成
される。
【０００４】
【発明が解決しようとする課題】本発明の目的は、単純
な構造で、容易に製造できるとともに安全に使用でき、
しかも十分に柔軟で、かつ半径方向の強い力をかけたり
受けたりすることのできるステントを提供することにあ
る。
【０００５】
【課題を解決するための手段】本発明は、患者の身体に
挿入されたとき血管の屈曲を容易にたどる事ができる極
めて柔軟なステントを提供する。本発明によるステント
の先端部は極めて柔軟であるため、ステントが所定の位
置に配置されるときに非常に良好かつ容易に血管の屈曲
をたどる事ができる。というのは、ステントが配置（位
置決め）されるときに、バルーンカテーテルのガイドワ
イヤに、レール上を進むようにステントが従っていくか
らである。
【０００６】本発明のステントは、その先端部が極めて
柔軟であることが特徴である。配置（位置決め）操作の
間、ステントの先端部はその柔軟性のために容易に血管
をたどる事ができるので、ステントは血管の中をその先
端部により引っ張られていくようにして進む。種々の方
法で柔軟な先端部を作る事ができる。好ましい実施形態
では、ステントの先端部に螺旋が取り付けられる。
【０００７】さらに特に好ましい実施形態では、ほぼ時
計ばね形状（渦巻き状）のコネクターがステントの先端
部に形成される。コネクターは、好ましくはジグザグ形
状に延びる網パターンの２番め毎又は３番め毎の端のみ
に連結する。しかし、好ましくは先端部がステントに容
易に連結する事ができるためには少なくとも３つのコネ
クターが必要である。屈曲しながら延びる少なくともひ
とつの網パターンが、最終方法で先端部を形成するため
にコネクターに取り付けられる。その次の網パターン
（曲がりくねりパターン）はその固有の剛性を避けるた
めに好ましくは短い足を持つべきである。その様なデザ
インは好ましくはジグザグ線の数を増やす事により達成
できる。
【０００８】さらに特に好ましい実施形態では、複数の
コネクターと好ましくは短足の曲がりくねった網パター
ンを交互にステントの端に取り付ける事ができる。時計
ばね（渦巻きばね）又は螺旋の形をしたコネクターの形
状は特に好ましい実施形態を表すが、先端部の柔軟なデ
ザインを可能とする別のコネクターも原則的には可能で
ある。
【０００９】本発明のステントは幾つかの重要な利点に
より特徴づけられる。非拡張状態では、本発明の組立体
は充分な強度のみならず十分な柔軟性を生む。ステント
の壁の隔室の網又は網部分は、ステントが容易に信頼で
きる方法で拡張する事ができる事を保証する。第１隔室
の折りたたまれた網のジグザグ形状のデザインは、これ
らの網が好ましくは円周方向に延びる帯状の部分を形成
しているので非常に有利である事が解った。この様な帯
状の部分はステントの強度を増やし、拡張状態での寸法
の安定性を保証する。
【００１０】
【発明の実施の形態】図１は、壁を有する柔軟性管状胴
体２を含む本発明のステント１の基本構造を示してお
り、壁の前面側３が図に表れている。図２は本発明のス
テントの第１実施形態を示し、ここでは胴体２の構造を
説明するためにその壁が図１の平面構造で示されてい
る。
【００１１】図２に示されるように、ステント１は例え
ば交互に網パターン５と６を含む網構造を持ち、複数の
網パターン６のそれぞれは網パターン５と相互に連結し
ている。網パターン５と６は網を有し、網はジグザグ状
又は曲がりくねって円周方向に延びるとともに網構造の
隔室を構成している。また、網のジグザグ状又は曲がり
くねって延びる部分は帯状である。
【００１２】柔軟性先端部４は本発明のステント１の前
端部に配置される。図２には、この部分が破線で囲まれ
ている。図２に示される実施形態では、先端部４は好ま
しくは少なくとも３個の複数のコネクターを持ち、その
うち１個のコネクター７には対応する参照番号が与えら
れ典型的例として示される。図２に示されるように、コ
ネクターはＳ形状か又は時計のばねに似た形で渦巻き状
に屈曲している。その自由端の一端８でコネクター７は
前側に設けられている網パターン５と連結している。他
の自由端９ではコネクター７が隣のさらに好ましくは短
足の網パターン１０に配置される。網パターン１０には
網パターン５，６よりもそれぞれ短い足が設けられる。
網パターン１０は屈曲或いはジグザグ形状で延び、曲が
りくねりパターンとも呼ぶことができる。
【００１３】また、コネクター７は、ジグザグ形状に延
びる網パターン５の２番め毎（１つおき）の端に連結さ
れている。この連結の仕方は、３番め毎でもよい。上述
の実施形態の先端部４は極めて柔軟性があり、ステント
が血管内壁に引っかかったりして血管壁を傷つける事を
柔軟な先端部が防ぐので、非常に信頼できる方法で患者
の身体にステントを挿入する事ができる。
【００１４】図３には本発明のステントの第２実施形態
が示されている。図２に示されるものに対応するすべて
の特徴に同じ参照番号が与えられる。図２による実施形
態との本質的な差は柔軟性先端部４' の構成に見られ
る。即ちこの例では、複数のコネクター７とそれに連結
した網パターン１０に加えて、さらにコネクター７' の
列とそれに連結されたさらなる網パターン１０' とを含
む。図３に示されるように、コネクター７' はコネクタ
ー７を１８０°だけ回転させて配置されており、網パタ
ーン１０' は網パターン１０を位相シフトした形で、す
なわち鏡像関係となるように対称に配置されている。し
かし、その他は図２を参照する事ができる。先端部４'
は非常に柔軟性があり、患者の身体へのステントの信頼
できる挿入が可能となる。その理由は、上述のステント
は、壁２の網構造がたとえ比較的硬い場合でも極めて容
易に血管の屈曲をたどる事ができるからである。
【００１５】図４に第３実施形態を模式的に示してい
る。この実施形態のステント１には、その前端３の一つ
に螺旋形状の柔軟先端部４" が設けられている。螺旋状
先端部４" は胴体２の網構造に２つの端１１と１２で連
結される。この連結は好ましくは、図２及び３に示され
る実施形態にも使用する事ができる一体式タイプであ
る。
【００１６】
【発明の効果】以上のように本発明のステントでは、胴
体の前端に柔軟性先端部を設けたので、容易に血管の屈
曲をたどることができる。
【図面の簡単な説明】
【図１】本発明によるステントの基本構造を模式的に示
す図。
【図２】非拡張状態におけるステントの壁の網構造の第
１実施形態を示す図。
【図３】第２実施形態の図２に相当する図。
【図４】第３実施形態の図２に相当する図。
【符号の簡単な説明】
１ ステント ２ 管状胴体 ３ 前端 ４，４' ，４'' 先端部 ５，６，１０，１０' 網パターン ７，７' コネクター ８ 端部 ９ 他端

Claims (8)

    【特許請求の範囲】
  1. 【請求項１】壁が網構造を持つ管状胴体（２）を含むと
    ともに、前記網構造が網により構成される複数の隣接隔
    室を含む冠状ステント（１）であって、 前記胴体（２）がその前端部（３）の少なくとも１つに
    おいて柔軟性先端部（４）を有することを特徴とする冠
    状ステント。
  2. 【請求項２】前記先端部（４）が複数のコネクター
    （７）を含み、前記コネクター（７）はそれらの端部の
    一端（８）が前部側に設けられている前記胴体（２）の
    網構造（５）に接続されており、前記コネクター（７）
    の他端（９）にさらに網構造（１０）が配置されている
    ことを特徴とする請求項１に記載の冠状ステント。
  3. 【請求項３】前記コネクターがＳ形状に屈曲しているこ
    とを特徴とする請求項１又は２に記載の冠状ステント。
  4. 【請求項４】前記コネクター（７）の他端（９）に配置
    された前記網構造（１０）が前記胴体（２）の網構造
    （５，６）と比較して短足であることを特徴とする請求
    項１〜３のいずれかに記載の冠状ステント。
  5. 【請求項５】前記コネクター（７）が高弾性のばね要素
    として形成されていることを特徴とする請求項１〜４の
    いずれかに記載の冠状ステント。
  6. 【請求項６】前記先端部（４' ）が少なくとも１つのさ
    らなるコネクターの列（７' ）を含み、前記コネクター
    の列（７' ）は、前記第１の短足の網構造（１０）に接
    続され、さらにその自由端で第２の短足網構造（１０'
    ）に接続されていることを特徴とする請求項２から５
    のいずれかに記載の冠状ステント。
  7. 【請求項７】少なくとも３個のコネクター（７、７' ）
    が前記短足の網構造（１０及び１０' 、それぞれ）を取
    り付けるために設けられていることを特徴とする請求項
    ２から６のいずれかに記載の冠状ステント。
  8. 【請求項８】前記先端部（４" ）が螺旋状に形成されて
    いることを特徴とする請求項１記載の冠状ステント。
JP13405398A 1997-05-20 1998-05-15 冠状ステント Pending JPH10328312A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29708879 1997-05-20
DE29708879U DE29708879U1 (de) 1997-05-20 1997-05-20 Koronarer Stent

Publications (1)

Publication Number Publication Date
JPH10328312A true JPH10328312A (ja) 1998-12-15

Family

ID=8040554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13405398A Pending JPH10328312A (ja) 1997-05-20 1998-05-15 冠状ステント

Country Status (6)

Country Link
US (1) US6017365A (ja)
EP (1) EP0879584B2 (ja)
JP (1) JPH10328312A (ja)
AT (1) ATE273670T1 (ja)
CA (1) CA2237476C (ja)
DE (2) DE29708879U1 (ja)

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CA2237476C (en) 2006-01-03
CA2237476A1 (en) 1998-11-20
US6017365A (en) 2000-01-25
DE59811817D1 (de) 2004-09-23
DE29708879U1 (de) 1997-07-31
EP0879584A2 (de) 1998-11-25
EP0879584A3 (de) 1999-07-28
EP0879584B2 (de) 2011-07-06

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