WO1996011720A1 - Drug-releasing stent - Google Patents
Drug-releasing stent Download PDFInfo
- Publication number
- WO1996011720A1 WO1996011720A1 PCT/JP1995/002129 JP9502129W WO9611720A1 WO 1996011720 A1 WO1996011720 A1 WO 1996011720A1 JP 9502129 W JP9502129 W JP 9502129W WO 9611720 A1 WO9611720 A1 WO 9611720A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- drug
- biodegradable polymer
- fiber
- eluting
- Prior art date
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
-
- 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
- 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
-
- 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
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- 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
-
- 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
- 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
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/416—Anti-neoplastic or anti-proliferative or anti-restenosis or anti-angiogenic agents, e.g. paclitaxel, sirolimus
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/42—Anti-thrombotic agents, anticoagulants, anti-platelet agents
Definitions
- the object of the present invention has been proposed in order to solve such disadvantages of the prior art, and it is quite possible to administer a drug in a localized manner over a long period of time. To provide a new drug elution stent ⁇ ).
- biodegradable polymers used in sutures such as polylactic acid and polyglycolic acid, have melting points of about 220 ° C to 240 ° C. I am concerned.
- the biodegradable polymer must be a biodegradable polymer having a low melting point, particularly a biodegradable polymer having a melting point not lower than the pharmacological effect of the drug, for example, a melting point of 80 eC or less. is there.
- Such low-melting biodegradable polymers include poly- ⁇ -caprolactone, poly-D, L-decalactone, polydioxanone, and copolymers thereof having a melting point of about 63. Is mentioned.
- FIG. 9 is a perspective view showing still another example of the stent according to the present invention in which a low-melting-point biodegradable molecular solution containing a drug is applied to the stent body shown in FIG.
- the tranilast-containing poly- ⁇ -force protein fiber 1 constituting the twin yarn 3 is spun to a diameter of approximately 0.05 mm, and the high-melting biodegradable polymer fiber 2 is What is spun to a diameter of about 0.05 mm is used.
- the stent main body 10 is formed by knitting a twin yarn having a length of 90 cm so as to have a diameter of 3 mm and a length of 20 mm.
- the stent body 30 is provided with an acetate as a solvent. Tons 70 cc, lg of tranilast as a drug, and 1 g of poly-force prolacton mixed with a low-melting biodegradable polymer solution were mixed, and the amount of tranilast contained in Stent 20 May be adjusted.
- the temperature at which the polyaniline ⁇ -force prolactone arrowhead 1 containing tranilast is not completely melted at the stent 21, that is, the melting point of the polyaniline ⁇ -force prolactone or heating below the melting point Then, the surface of the tranilast-containing polylactone moth fiber 1 entangled with the stent body 30 was melted, and the surface of the stent 21 was smoothed.
- a low melting point biodegradable polymer solution containing a drug was applied to a high melting point biodegradable polymer fiber 42, and the fibers were knitted to form a stent 41. Things.
- a low-melting-point biodegradable polymer solution 43 containing a drug is applied to the biodegradable polymer fiber 42.
- the low-melting-point biodegradable polymer solution 43 containing the drug used here uses aceton as a solvent, and for 70 cc of this acetate, 1 g of tranilast as a drug is used. A mixture obtained by mixing 1 g of poly- ⁇ - prolactone is used.
- low melting point biodegradability is obtained by mixing the knitted stent body 40, acetonate 70cc, tranylast lg as a drug and lg 1g per lactone.
- the polymer solution 43 may be applied, and the i of the tranilast as a drug applied to the state 40 may be adjusted.
- the stent is formed by knitting a high-melting biodegradable polymer fiber coated with a low-melting biodegradable polymer solution containing a drug.
- a high melting point biodegradable polymer fiber 42 spun from polylactic acid, polyglycolic acid, or a copolymer thereof is knitted to form a stent body 50 as shown in FIG.
- a low-melting-point biodegradable polymer solution 53 containing a drug is applied to the stent main body 50.
- the low-melting-point biodegradable polymer solution 53 applied to the stent body 50 is a polymer obtained by mixing tranilast in a ratio of 1 to 2% by weight with respect to poly- ⁇ -force prolactone. A solution is used.
- a stent 61 of this embodiment is obtained by applying a solution of a biodegradable polymer containing a drug to the surface of a stent body 60 made of metal, The polymer film 62 was formed.
- the applied solution is a polymer solution prepared by adding 1 to 2% of S% to poly ⁇ -force prolactone ( ⁇ point 63).
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Epidemiology (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Molecular Biology (AREA)
- Medicinal Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Materials For Medical Uses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT95934320T ATE285813T1 (de) | 1994-10-17 | 1995-10-17 | Stent mit arzneistoffabgabe |
US08/663,173 US5733327A (en) | 1994-10-17 | 1995-10-17 | Stent for liberating drug |
AU36742/95A AU699821B2 (en) | 1994-10-17 | 1995-10-17 | Stent for liberating drug |
CA002179304A CA2179304C (en) | 1994-10-17 | 1995-10-17 | Stent for liberating drug |
EP95934320A EP0761251B1 (en) | 1994-10-17 | 1995-10-17 | Drug-releasing stent |
DE69533892T DE69533892T2 (de) | 1994-10-17 | 1995-10-17 | Stent mit arzneistoffabgabe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6/250859 | 1994-10-17 | ||
JP25085994 | 1994-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996011720A1 true WO1996011720A1 (en) | 1996-04-25 |
Family
ID=17214077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/002129 WO1996011720A1 (en) | 1994-10-17 | 1995-10-17 | Drug-releasing stent |
Country Status (8)
Country | Link |
---|---|
US (1) | US5733327A (ja) |
EP (3) | EP1181904B1 (ja) |
AT (2) | ATE434423T1 (ja) |
AU (1) | AU699821B2 (ja) |
CA (1) | CA2179304C (ja) |
DE (2) | DE69533892T2 (ja) |
ES (1) | ES2235174T3 (ja) |
WO (1) | WO1996011720A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1997041916A1 (en) * | 1996-05-03 | 1997-11-13 | Emed Corporation | Combined coronary stent deployment and local delivery of an agent |
EP0894496A1 (en) * | 1996-02-15 | 1999-02-03 | Kissei Pharmaceutical Co., Ltd. | Neovascularization inhibitor |
US6001117A (en) * | 1998-03-19 | 1999-12-14 | Indigo Medical, Inc. | Bellows medical construct and apparatus and method for using same |
US7011676B2 (en) | 2002-09-05 | 2006-03-14 | Scimed Life Systems, Inc. | Flat knitted stent and method of making the same |
JP2008307405A (ja) * | 1998-09-08 | 2008-12-25 | Kyoto Medical Planning Ltd | 脈管用ステント糸の製造方法 |
JP2009542263A (ja) * | 2006-04-12 | 2009-12-03 | アルテリアル・ルモンドラン・テクノロジー・エス・アー | 生物活性部位を低減するためにポリマーステント表面を平滑化および再形成する改良された方法 |
JP2013236940A (ja) * | 2007-09-28 | 2013-11-28 | Terumo Corp | 生体内留置物 |
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US7611533B2 (en) * | 1995-06-07 | 2009-11-03 | Cook Incorporated | Coated implantable medical device |
US7896914B2 (en) * | 1995-06-07 | 2011-03-01 | Cook Incorporated | Coated implantable medical device |
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US7846202B2 (en) * | 1995-06-07 | 2010-12-07 | Cook Incorporated | Coated implantable medical device |
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US7867275B2 (en) | 1995-06-07 | 2011-01-11 | Cook Incorporated | Coated implantable medical device method |
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Also Published As
Publication number | Publication date |
---|---|
EP1477132A2 (en) | 2004-11-17 |
AU3674295A (en) | 1996-05-06 |
CA2179304C (en) | 2008-02-05 |
EP1181904A3 (en) | 2003-07-16 |
DE69533892D1 (de) | 2005-02-03 |
EP1181904B1 (en) | 2009-06-24 |
US5733327A (en) | 1998-03-31 |
EP0761251A4 (en) | 1999-03-31 |
ES2235174T3 (es) | 2005-07-01 |
CA2179304A1 (en) | 1996-04-25 |
EP1477132A3 (en) | 2009-09-09 |
DE69535973D1 (de) | 2009-08-06 |
EP1181904A2 (en) | 2002-02-27 |
ATE285813T1 (de) | 2005-01-15 |
ATE434423T1 (de) | 2009-07-15 |
DE69533892T2 (de) | 2005-12-08 |
EP0761251B1 (en) | 2004-12-29 |
EP0761251A1 (en) | 1997-03-12 |
AU699821B2 (en) | 1998-12-17 |
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