JP2010515514A - ステントのための壊れやすい橋構造物及び、そのような橋構造物を含むステント - Google Patents
ステントのための壊れやすい橋構造物及び、そのような橋構造物を含むステント 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/856—Single tubular stent with a side portal passage
-
- 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 sheet material 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 sheet material 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 sheet material 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- 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 sheet material 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 sheet material 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 sheet material 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
- A61F2002/91541—Adjacent bands are arranged out of phase
-
- 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 sheet material 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 sheet material 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
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0071—Additional features; Implant or prostheses properties not otherwise provided for breakable or frangible
Abstract
Description
本発明の実施形態によると、橋の構造物は、3つの連続的な分岐を含み、第1分岐はステント部分の1つに接続されているとともに橋構造物がステントに接続することを可能にし、第2分岐はステント部分の他の部分に接続され、橋構造物がステントに接続されることを可能にし、これらの第1及び第2分岐は2つの接続部分により、前記第1及び第2分岐の間の、第3の中間分岐に接続され、これらの3つの分岐は互いに平行に延在しており、これらの分岐の長手方向は好ましくはステントの長手方向に垂直に方向付けられ、互いにすぐ近くに近接する。他の実施形態によれば、これらの分岐も互いに平行に延び、これらの分岐の長手方向はステントの長手方向に非垂直方向に方向付けられ、互いにすぐ近くに近接してもよい。
2 ステント部分
3 横断領域
4 壊れやすい橋
6 ストラット
7 第3領域
8 カットアウト
10 カットアウト
11 第1分岐
12 第2分岐
13 第3分岐
14 穴
15 スロット
100 バルーン
Claims (27)
- ステントのための壊れやすい橋構造物(4)であって、
3つの連続的な分岐(11、12、13)、すなわち、前記橋構造物(4)が接続されることを可能にするステント部分(2)の1つに接続された第1前記分岐(11)、前記橋構造物(4)が接続されることを可能にする前記ステント部分(2)の他方に接続された第2前記分岐(12)、前記第1及び第2分岐(11,12)の間に延在する第3中間分岐(13)、を備え、前記第1及び第2分岐(11,12)は、2つの接続部分により、前記第1及び第2分岐(11,12)の中間にある前記第3分岐(13)に接続され、3つの前記分岐(11、12、13)は互いに平行に伸び、互いに直近にあることを特徴とするステントのための壊れやすい橋構造物。 - 前記分岐(11、12、13)が互いに平行に伸び、前記分岐(11、12、13)の長手方向が前記ステントの長手方向に垂直に方向付けられていることを特徴とする請求項1に記載の壊れやすい橋構造物。
- 前記分岐(11,12、13)が互いに平行に伸び、前記分岐(11、12、13)の長手方向が前記ステントの長手方向に非垂直に方向付けられていることを特徴とする請求項1に記載の壊れやすい橋構造物。
- 前記橋構造物(4)は、4〜10気圧のバルーン膨張圧力の下で破壊可能であることを特徴とする請求項1に記載の壊れやすい橋構造物。
- 前記橋構造物(4)は、前記橋構造物(4)の曲げに伴う可撓性を有する一方、長手方向に広がる力が前記橋構造物(4)に加えられた場合に、壊れやすいことを特徴とする請求項1に記載の壊れやすい橋構造物。
- 前記橋構造物(4)の接続部分が、前記分岐(11、12、13)の破壊耐性よりも低い破壊耐性を有するように形成されることを特徴とする請求項1に記載の壊れやすい橋構造物(4)。
- 前記橋構造物(4)の前記接続部分が前記分岐(11、12、13)の断面よりも小さい断面を有し、例えば、これら接続部分の幅が前記分岐(11、12、13)の幅に対して小さい幅の形態で、及び/又は、これら接続する部分に配置される1又はいくつかの穴又はノッチの形態であることを特徴とする請求項6に記載の壊れやすい橋構造物(4)。
- 前記接続する部分の小さい幅が、1つのそれらの端部から、前記接続する部分に配置されるスロット(15)に起因することを特徴とする請求項7に記載の壊れやすい橋構造物(4)。
- 前記ステントが配置状態にない場合に、前記スロット(15)が前記分岐(11、12、13)の長手方向に対して傾斜していることを特徴とする請求項8に記載の壊れやすい橋構造物(4)。
- 2つの連続的な前記分岐(11、12、13)が100ミクロンよりも短い距離だけ、例えば5〜50ミクロン、又は好ましくはレーザービームの厚さに対応して、例えば15〜25ミクロン、好ましくは約15ミクロンだけ、互いに分離されていることを特徴とする請求項1〜9のいずれか1項に記載の壊れやすい橋構造物(4)。
- 前記中間分岐(13)が、500ミクロンよりも短い長さ、例えば、120〜450ミクロン、しかし好ましくは380ミクロンを有し、前記第1及び第2分岐(11、12)はそれぞれ300ミクロンよりも短い長さ、例えば25ミクロン〜250ミクロン、しかし好ましくは230ミクロンを有することを特徴とする請求項1〜10のいずれか1項に記載の壊れやすい橋構造物(4)。
- 各分岐(11〜13)の幅が、100ミクロンよりも短く、例えば、25〜60ミクロン、好ましくは50ミクロンであることを特徴とする請求項1〜11のいずれか1項に記載の壊れやすい橋構造物(4)。
- これらの分岐(11〜13)を2つずつ接続する前記接続部分の幅が、50ミクロン以下、例えば15〜50ミクロン、しかし好ましくは25ミクロンであることを特徴とする請求項1から2のいずれか1項に記載の壊れやすい橋構造物(4)。
- 前記分岐が、台形形状の横断面を有し、前記台形の最も長い側が前記ステント(2)の半径方向の外部側上に配置されることを特徴とする請求項1〜13のいずれか一項に記載の壊れやすい橋構造物(4)。
- 前記台形の前記最も長い側が100ミクロンよりも短い長さ、例えば25〜60ミクロン、好ましくは50ミクロンを有し、前記ステントの内部側に半径方向に配置されたこの最も長い側に平行な側が、100ミクロンよりも短い長さ、25〜60ミクロン、好ましくは37.5ミクロンを有し、これらの側の間の距離、すなわち、前記台形の高さは、200ミクロンよりも短く、例えば80〜200ミクロン、好ましくは150ミクロンに等しいことを特徴とする請求項14に記載の壊れやすい橋構造物(4)。
- 請求項1〜15のいずれか1項に記載の前記橋構造物(4)を有する複数の壊れやすい橋を備えることを特徴とするステント。
- 連続的に、それらの端部で、曲がった領域(7)のそばで、互いに接続される複数のストラット(6)により形成されたステント部分(2)を含み、これらのステント部分(2)はこのように、前記ステント(2)の配置された状態において、ジグザグ構造物をも有することを特徴とする請求項16に記載のステント。
- 前記橋構造物(4)の前記接続する部分が、前記ストラット(6)の破壊耐性よりも低い破壊耐性を有するように形成されていることを特徴とする請求項17に記載のステント。
- 前記分岐(11、12、13)は前記ステント部分の側壁に平行な状態に維持され、前記分岐(11、12、13)は、前記橋構造物(4)の接続部分での破壊後に前記ステント部分の側壁に固着されていることを特徴とする請求項18に記載のステント。
- 前記壊れやすい橋(4)が、前記曲がった領域(7)の全て又は一部において、前記ステント部分(2)に接続されていることを特徴とする請求項17に記載のステント。
- 前記曲がった領域(7)が、2つの又はそれ以上の曲がった領域、例えば一列の3つの曲がった領域毎に、橋(4)に接続されていることを特徴とする請求項17に記載のステント。
- 前記橋構造物(4)が、4〜10気圧のバルーン膨張圧力の下で破壊可能であることを特徴とする請求項16に記載のステント。
- 体内の導管に、特に、血管の分岐点に、ステントを配置するためのシステムであって、
請求項16〜22のいずれか1項に記載のステント、と
破壊装置(100)であって、2つの連続的な前記ステント部分(2)の間に係合することができ、これらの2つのステント部分(2)を接続する前記橋構造物(4)に張力をかけて、これらの橋構造物(4)の全て又は一部の破壊を達成することができる破壊装置(100)と、
を備えることを特徴とするシステム。 - 前記破壊装置がバルーン(100)を備えることを特徴とする請求項23に記載のシステム。
- 体内の導管を治療する方法であって、
請求項16〜22のいずれか一項に記載のステントを前記体内の導管の主要血管及び第1分岐血管に半径方向に収縮した状態で導入するステップと;
ステントに自己拡張させるステップと;
前記主要血管を通じ、前記ステントの壁を通じ、次いで前記体内導管の第2分岐血管を通じてバルーンを導入するステップと;
前記バルーンが前記ステントを2つのステント部品に破壊させるように前記バルーンを膨張させるステップと;
前記血管から前記バルーンを除去するステップと;
を備える方法。 - 前記バルーンが、血管のカレーナに最も近い前記ステントの壁にあるスロットを通過することを特徴とする請求項25に記載の方法。
- 前記バルーンが4〜10気圧で膨張され、ステントを破壊させることを特徴とする請求項25に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0700109A FR2911063B1 (fr) | 2007-01-09 | 2007-01-09 | Structure de pont ruptible pour un stent, et stent incluant de telles structures de pont. |
FR07/00109 | 2007-01-09 | ||
US88041807P | 2007-01-16 | 2007-01-16 | |
US60/880,418 | 2007-01-16 | ||
PCT/IB2008/000025 WO2008084376A2 (en) | 2007-01-09 | 2008-01-08 | Frangible bridge structure for a stent, and stent including such bridge structures |
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JP2010515514A true JP2010515514A (ja) | 2010-05-13 |
JP5441712B2 JP5441712B2 (ja) | 2014-03-12 |
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JP2009545248A Expired - Fee Related JP5441712B2 (ja) | 2007-01-09 | 2008-01-08 | ステントのための壊れやすい橋構造物及び、そのような橋構造物を含むステント |
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US (1) | US8070794B2 (ja) |
EP (1) | EP2120805B1 (ja) |
JP (1) | JP5441712B2 (ja) |
CA (1) | CA2673378C (ja) |
FR (1) | FR2911063B1 (ja) |
WO (1) | WO2008084376A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011245001A (ja) * | 2010-05-26 | 2011-12-08 | Terumo Corp | ステント |
JPWO2014188899A1 (ja) * | 2013-05-23 | 2017-02-23 | 学校法人東海大学 | ステント |
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Also Published As
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CA2673378A1 (en) | 2008-07-17 |
EP2120805A2 (en) | 2009-11-25 |
WO2008084376A2 (en) | 2008-07-17 |
EP2120805B1 (en) | 2015-11-11 |
US20100057190A1 (en) | 2010-03-04 |
FR2911063B1 (fr) | 2009-03-20 |
JP5441712B2 (ja) | 2014-03-12 |
FR2911063A1 (fr) | 2008-07-11 |
US8070794B2 (en) | 2011-12-06 |
CA2673378C (en) | 2015-02-17 |
WO2008084376A3 (en) | 2008-10-16 |
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