JP2010526610A - 血管ステント - Google Patents
血管ステント Download PDFInfo
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- JP2010526610A JP2010526610A JP2010507842A JP2010507842A JP2010526610A JP 2010526610 A JP2010526610 A JP 2010526610A JP 2010507842 A JP2010507842 A JP 2010507842A JP 2010507842 A JP2010507842 A JP 2010507842A JP 2010526610 A JP2010526610 A JP 2010526610A
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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 sheet material 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 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/148—Materials at least partially resorbable by the body
-
- 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
- A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
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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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
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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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated 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
- 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
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
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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
- 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
- A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
- Prostheses (AREA)
Abstract
Description
ゼラチン中に存在するリシン基のアミノ基を、無水コハク酸を用いてコハク酸エステル形態へと変換してもよく、その結果、未修飾ゼラチンで観測されるゼラチン材料の8〜9のpKs値は約4へと低下される。
以下の実施例は、ゼラチン系材料の局所的血管新生促進効果を実証することを目的とする。
3つの異なる架橋度を有するゼラチン膜(膜A、BおよびC)を、2段階の架橋工程を用いて製造した。
インビボにおけるゼラチン膜A、BおよびCの血管新生促進効果を、動物実験において調査した。試験動物として、10週齢であって20gの体重を有する、チャールズ・リバー社(Sulzfeld)のBalb/C系統マウスを使用した。
架橋ゼラチン系材料における複数の層の時間依存的分離挙動の定性的および定量的決定を行うために、下に記載した試験を行なった。
Claims (28)
- 血管ステント、特に冠状動脈ステントであって、寸法安定性を有する材料の担体、および生理学的条件下において吸収性である架橋ゼラチン系材料の、前記担体上において少なくとも断面に配置される一つ以上の層を含み、前記担体と前記層との間の、および/または個々の層間の吸着が解除され得る前記ステント。
- 前記吸収性材料の一つ以上の層が個別に脱着可能である、請求項1に記載の血管ステント。
- 生理学的条件下で可溶性である材料の吸着層が、前記吸収性材料の個々の層間に配置される、請求項1または2に記載の血管ステント。
- 前記吸着が前記ゼラチンの架橋度に従って解除され得る、請求項1〜3のいずれか一項に記載の血管ステント。
- 前記ゼラチンの架橋度が一つ以上の層の内部で前記担体方向に減少する、請求項4に記載の血管ステント。
- 前記担体が金属および/またはプラスチック材料から形成される、請求項1〜5のいずれか一項に記載の血管ステント。
- 少なくとも一つの前記層が前記担体表面の約75%以上を覆う、請求項1〜6のいずれか一項に記載の血管ステント。
- 少なくとも一つの前記層が前記担体表面の約90%以上を覆う、請求項7に記載の血管ステント。
- 少なくとも一つの前記層が前記担体の全表面を実質的に覆う、請求項8に記載の血管ステント。
- 前記ゼラチン系材料が血管新生促進効果を有する、請求項1〜9のいずれか一項に記載の血管ステント。
- 前記吸収性材料が主に架橋ゼラチンで形成される、請求項1〜10のいずれか一項に記載の血管ステント。
- 前記ゼラチンが、約160〜約320gの範囲内のブルーム(Bloom)値を有する、請求項1〜11のいずれか一項に記載の血管ステント。
- 前記ゼラチンが、LAL試験に従って決定される約1,200I.U./g以下の、特に約200I.U./g以下の内毒素含有量を有する、請求項1〜12のいずれか一項に記載の血管ステント。
- 前記ゼラチンがホルムアルデヒドを使用して架橋される、請求項1〜13のいずれか一項に記載の血管ステント。
- 前記ゼラチンがトランスグルタミナーゼを使用して架橋される、請求項1〜13のいずれか一項に記載の血管ステント。
- 前記吸収性材料が一つ以上の柔軟剤を含む、請求項1〜15のいずれか一項に記載の血管ステント。
- 前記吸収性材料の複数の層を含む、請求項1〜16のいずれか一項に記載の血管ステント。
- 前記吸収性材料の2〜5つの層を含む、請求項17に記載の血管ステント。
- 前記ゼラチンの架橋度が各々の層の内部で前記担体方向に減少する、請求項17または18に記載の血管ステント。
- 前記吸収性材料の個々の層が外側から連続的に脱着可能である、請求項17〜19のいずれか一項に記載の血管ステント。
- 前記個々の層におけるゼラチンの平均的架橋度が、前記担体に隣接する層方向に増加する、請求項17〜20のいずれか一項に記載の血管ステント。
- 前記層の厚さが約5〜約50μmである、請求項1〜21のいずれか一項に記載の血管ステント。
- 一つ以上の分離層が、前記吸収性材料の複数の層間、および/または前記層(単数または複数)の外側に配置される、請求項1〜22のいずれか一項に記載の血管ステント。
- 少なくとも一つの前記分離層が、前記ゼラチン系材料の層(単数または複数)よりも長い吸収時間を有する、請求項23に記載の血管ステント。
- 少なくとも一つの前記分離層が修飾ゼラチンを含む、請求項23または24に記載の血管ステント。
- 一つ以上の層が修飾ゼラチンを含む、請求項1〜25のいずれか一項に記載の血管ステント。
- 前記修飾ゼラチンが脂肪酸基で修飾されたゼラチンである、請求項25または26に記載の血管ステント。
- 前記修飾ゼラチンのリシン基の約10%〜約80%が脂肪酸基で修飾される、請求項27に記載の血管ステント。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007024256A DE102007024256A1 (de) | 2007-05-16 | 2007-05-16 | Gefäßstent |
PCT/EP2008/003894 WO2008138611A2 (de) | 2007-05-16 | 2008-05-15 | Gefässstent |
Publications (1)
Publication Number | Publication Date |
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JP2010526610A true JP2010526610A (ja) | 2010-08-05 |
Family
ID=39643070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010507842A Ceased JP2010526610A (ja) | 2007-05-16 | 2008-05-15 | 血管ステント |
Country Status (13)
Country | Link |
---|---|
US (1) | US8133269B2 (ja) |
EP (1) | EP2144641B1 (ja) |
JP (1) | JP2010526610A (ja) |
CN (1) | CN101678153B (ja) |
AU (1) | AU2008250579A1 (ja) |
BR (1) | BRPI0811891A2 (ja) |
CA (1) | CA2687021A1 (ja) |
DE (1) | DE102007024256A1 (ja) |
ES (1) | ES2389616T3 (ja) |
IL (1) | IL202095A0 (ja) |
MX (1) | MX2009012325A (ja) |
PL (1) | PL2144641T3 (ja) |
WO (1) | WO2008138611A2 (ja) |
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EP2338534A2 (de) * | 2009-12-21 | 2011-06-29 | Biotronik VI Patent AG | Medizinisches Implantat, Beschichtungsverfahren sowie Implantationsverfahren |
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JP4896245B2 (ja) * | 2010-03-31 | 2012-03-14 | 朝日インテック株式会社 | ガイドワイヤ |
DE102010018541A1 (de) * | 2010-04-28 | 2011-11-03 | Acandis Gmbh & Co. Kg | Verfahren zur Herstellung einer medizinischen Vorrichtung |
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- 2008-05-15 CA CA002687021A patent/CA2687021A1/en not_active Abandoned
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- 2008-05-15 MX MX2009012325A patent/MX2009012325A/es unknown
- 2008-05-15 EP EP08749462A patent/EP2144641B1/de not_active Not-in-force
- 2008-05-15 WO PCT/EP2008/003894 patent/WO2008138611A2/de active Application Filing
- 2008-05-15 PL PL08749462T patent/PL2144641T3/pl unknown
- 2008-05-15 ES ES08749462T patent/ES2389616T3/es active Active
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2009
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Also Published As
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MX2009012325A (es) | 2009-12-01 |
CN101678153A (zh) | 2010-03-24 |
US8133269B2 (en) | 2012-03-13 |
EP2144641B1 (de) | 2012-07-11 |
AU2008250579A1 (en) | 2008-11-20 |
EP2144641A2 (de) | 2010-01-20 |
IL202095A0 (en) | 2010-06-16 |
BRPI0811891A2 (pt) | 2014-10-21 |
DE102007024256A1 (de) | 2008-11-20 |
US20100057200A1 (en) | 2010-03-04 |
PL2144641T3 (pl) | 2012-12-31 |
WO2008138611A3 (de) | 2009-11-19 |
CN101678153B (zh) | 2013-04-17 |
ES2389616T3 (es) | 2012-10-29 |
CA2687021A1 (en) | 2008-11-20 |
WO2008138611A2 (de) | 2008-11-20 |
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