WO2002078763A8 - Radiopaque alloy stent - Google Patents

Radiopaque alloy stent

Info

Publication number
WO2002078763A8
WO2002078763A8 PCT/US2002/009897 US0209897W WO02078763A8 WO 2002078763 A8 WO2002078763 A8 WO 2002078763A8 US 0209897 W US0209897 W US 0209897W WO 02078763 A8 WO02078763 A8 WO 02078763A8
Authority
WO
WIPO (PCT)
Prior art keywords
stent
stainless steel
steel alloy
alloy stent
radiopaque characteristics
Prior art date
Application number
PCT/US2002/009897
Other languages
French (fr)
Other versions
WO2002078763A1 (en
Inventor
Charles H Craig
Thomas A Trozera
Herbert R Radisch Jr
Original Assignee
Scimed Life Systems Inc
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
Priority claimed from US09/823,308 external-priority patent/US20020193865A1/en
Application filed by Scimed Life Systems Inc filed Critical Scimed Life Systems Inc
Priority to JP2002577027A priority Critical patent/JP4439813B2/en
Priority to CA2442200A priority patent/CA2442200C/en
Priority to DE60220649T priority patent/DE60220649T2/en
Priority to EP02728622A priority patent/EP1372754B1/en
Publication of WO2002078763A1 publication Critical patent/WO2002078763A1/en
Publication of WO2002078763A8 publication Critical patent/WO2002078763A8/en

Links

Classifications

    • 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
    • A61L31/18—Materials at least partially X-ray or laser opaque
    • 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
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps

Abstract

The present invention is directed toward a stent fabricated from an austenitic 300 series stainless steel alloy having improved radiopaque characteristics. The modified stainless steel alloy consists essentially of, in weight percent, about (A) wherein variable 'X' could be selected from a group consisting of Gold, Osmium, Palladium, Rhenium, Tantalum, Iridium, Ruthenium or Tungsten, and mixtures thereof. The alloy provides a unique combination of strength, ductility, corrosion resistance and other mechanical properties which also has improved radiopaque characteristics in the thin sections necessary to manufacture a stent.
PCT/US2002/009897 2001-03-30 2002-03-29 Radiopaque alloy stent WO2002078763A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002577027A JP4439813B2 (en) 2001-03-30 2002-03-29 Stent made of radiopaque alloy
CA2442200A CA2442200C (en) 2001-03-30 2002-03-29 Radiopaque alloy stent
DE60220649T DE60220649T2 (en) 2001-03-30 2002-03-29 Stent made of a radiopaque alloy
EP02728622A EP1372754B1 (en) 2001-03-30 2002-03-29 Radiopaque alloy stent

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/823,308 US20020193865A1 (en) 2001-03-30 2001-03-30 Radiopaque stent
US09/823,308 2001-03-30
US36498502P 2002-03-15 2002-03-15
US60/364,985 2002-03-15
US10/112,390 US20030077200A1 (en) 2000-07-07 2002-03-28 Enhanced radiopaque alloy stent
US10/112,390 2002-03-28

Publications (2)

Publication Number Publication Date
WO2002078763A1 WO2002078763A1 (en) 2002-10-10
WO2002078763A8 true WO2002078763A8 (en) 2003-05-22

Family

ID=27381161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/009897 WO2002078763A1 (en) 2001-03-30 2002-03-29 Radiopaque alloy stent

Country Status (7)

Country Link
US (1) US20030077200A1 (en)
EP (1) EP1372754B1 (en)
JP (1) JP4439813B2 (en)
AT (1) ATE364412T1 (en)
CA (1) CA2442200C (en)
DE (1) DE60220649T2 (en)
WO (1) WO2002078763A1 (en)

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JP2004534148A (en) 2004-11-11
DE60220649D1 (en) 2007-07-26
JP4439813B2 (en) 2010-03-24
EP1372754B1 (en) 2007-06-13
CA2442200A1 (en) 2002-10-10
EP1372754A1 (en) 2004-01-02
US20030077200A1 (en) 2003-04-24
DE60220649T2 (en) 2008-02-21
ATE364412T1 (en) 2007-07-15
CA2442200C (en) 2011-05-03
WO2002078763A1 (en) 2002-10-10

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