CA2188429A1 - Clad Composite Stent - Google Patents

Clad Composite Stent

Info

Publication number
CA2188429A1
CA2188429A1 CA2188429A CA2188429A CA2188429A1 CA 2188429 A1 CA2188429 A1 CA 2188429A1 CA 2188429 A CA2188429 A CA 2188429A CA 2188429 A CA2188429 A CA 2188429A CA 2188429 A1 CA2188429 A1 CA 2188429A1
Authority
CA
Canada
Prior art keywords
core
case
composite
stent
surrounding
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.)
Granted
Application number
CA2188429A
Other languages
French (fr)
Other versions
CA2188429C (en
Inventor
David W. Mayer
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.)
Schneider USA Inc
Original Assignee
David W. Mayer
Schneider (Usa) 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
Application filed by David W. Mayer, Schneider (Usa) Inc. filed Critical David W. Mayer
Publication of CA2188429A1 publication Critical patent/CA2188429A1/en
Application granted granted Critical
Publication of CA2188429C publication Critical patent/CA2188429C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • 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
    • A61L31/082—Inorganic 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
    • A61L31/18—Materials at least partially X-ray or laser opaque
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • 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
    • 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
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

A body compatible stent is formed of multiple fila-ments arranged in two sets of oppositely directed helical windings interwoven with one another in a braided config-uration. Each of the filaments is a composite including a central core (24) and a case (26) surrounding the core (24).
In the more preferred version, the core is formed of a ra-diopaque and relatively ductile material, e.g. tantalum or platinum. The outer case (26) is formed of a relatively re-silient material, e.g. a cobalt/chromium based alloy. Favor-able mechanical characteristics of the stent are determined by the case (26), while the core (24) enables in vivo imag-ing of the stent. The composite filaments are formed by a drawn filled tubing process in which the core (24) is inserted into a tubular case (26) of a diameter substantially more than the intended final filament diameter. The composite filament is cold-worked in several steps to reduce its diameter, and annealed between successive cold-working steps. After the final cold working step, the composite filament is formed into the desired shape and age hardened. Alternative composite filaments employ an intermediate barrier layer (86) between the case (26) and core (24), a biocompatible cover layer surrounding the case (26), and a radiopaque case (26) surrounding a structural core (24).
CA002188429A 1994-05-09 1995-04-10 Clad composite stent Expired - Fee Related CA2188429C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23959594A 1994-05-09 1994-05-09
US08/239,595 1994-05-09
PCT/IB1995/000253 WO1995030384A2 (en) 1994-05-09 1995-04-10 Clad composite stent

Publications (2)

Publication Number Publication Date
CA2188429A1 true CA2188429A1 (en) 1995-11-16
CA2188429C CA2188429C (en) 2000-10-31

Family

ID=22902855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002188429A Expired - Fee Related CA2188429C (en) 1994-05-09 1995-04-10 Clad composite stent

Country Status (4)

Country Link
EP (1) EP0758870A1 (en)
JP (1) JP3415158B2 (en)
CA (1) CA2188429C (en)
WO (1) WO1995030384A2 (en)

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EP0749764B1 (en) * 1995-06-22 2000-05-03 Schneider (Europe) GmbH A medical appliance for the treatment of a portion of body vessel by ionizing radiation
US5758562A (en) * 1995-10-11 1998-06-02 Schneider (Usa) Inc. Process for manufacturing braided composite prosthesis
JPH09215753A (en) * 1996-02-08 1997-08-19 Schneider Usa Inc Self-expanding stent made of titanium alloy
US5733326A (en) * 1996-05-28 1998-03-31 Cordis Corporation Composite material endoprosthesis
US6027528A (en) * 1996-05-28 2000-02-22 Cordis Corporation Composite material endoprosthesis
DE19653720A1 (en) * 1996-12-10 1998-06-18 Biotronik Mess & Therapieg Stent
IT1291001B1 (en) * 1997-01-09 1998-12-14 Sorin Biomedica Cardio Spa ANGIOPLASTIC STENT AND ITS PRODUCTION PROCESS
DE19731021A1 (en) 1997-07-18 1999-01-21 Meyer Joerg In vivo degradable metallic implant
NL1011779C2 (en) * 1999-04-13 2000-10-16 Elephant Dental Bv Biomedical device or implant.
US20030018380A1 (en) † 2000-07-07 2003-01-23 Craig Charles H. Platinum enhanced alloy and intravascular or implantable medical devices manufactured therefrom
DK1370306T3 (en) * 2001-01-05 2005-11-07 Jacqueline Yvonne Hausdorf In corrosion, degradable metallic medical implants
US20030181972A1 (en) * 2002-03-22 2003-09-25 Scimed Life Systems, Inc. MRI and x-ray compatible stent material
US20040049261A1 (en) * 2002-09-09 2004-03-11 Yixin Xu Medical devices
US7794493B2 (en) * 2004-06-30 2010-09-14 Cordis Corporation Magnetic resonance imaging compatibility alloy for implantable medical devices
US7727273B2 (en) 2005-01-13 2010-06-01 Boston Scientific Scimed, Inc. Medical devices and methods of making the same
US9107899B2 (en) 2005-03-03 2015-08-18 Icon Medical Corporation Metal alloys for medical devices
US7540995B2 (en) 2005-03-03 2009-06-02 Icon Medical Corp. Process for forming an improved metal alloy stent
US7452501B2 (en) 2005-03-03 2008-11-18 Icon Medical Corp. Metal alloy for a stent
JP5335244B2 (en) 2005-03-03 2013-11-06 アイコン メディカル コーポレーション Medical member using improved metal alloy
US20100131045A1 (en) * 2006-07-24 2010-05-27 Existent Inc. Stent designs, materials and processing methods
JP2010517722A (en) * 2007-02-13 2010-05-27 アボット、カーディオバスキュラー、システムズ、インコーポレーテッド Radiopaque medical device alloy compatible with MRI
WO2008151204A1 (en) 2007-06-04 2008-12-11 Sequent Medical Inc. Methods and devices for treatment of vascular defects
US8398702B2 (en) 2007-06-29 2013-03-19 Boston Scientific Scimed, Inc. Molybdenum endoprostheses
US7604662B2 (en) 2007-07-13 2009-10-20 Boston Scientific Scimed, Inc. Endoprostheses containing boride intermetallic phases
CN102119040A (en) 2008-05-02 2011-07-06 斯昆特医疗公司 Filamentary devices for treatment of vascular defects
US8398916B2 (en) 2010-03-04 2013-03-19 Icon Medical Corp. Method for forming a tubular medical device
US8826791B2 (en) 2011-10-17 2014-09-09 Sequent Medical, Inc. Braiding mechanism and methods of use
US9339398B2 (en) * 2012-04-26 2016-05-17 Medtronic Vascular, Inc. Radiopaque enhanced nickel alloy for stents
US9592135B2 (en) 2012-04-26 2017-03-14 Medtronic Vascular, Inc. Radiopaque enhanced cobalt alloy for stents
US9078658B2 (en) 2013-08-16 2015-07-14 Sequent Medical, Inc. Filamentary devices for treatment of vascular defects
US9955976B2 (en) 2013-08-16 2018-05-01 Sequent Medical, Inc. Filamentary devices for treatment of vascular defects
US9629635B2 (en) 2014-04-14 2017-04-25 Sequent Medical, Inc. Devices for therapeutic vascular procedures
US11266767B2 (en) 2014-06-24 2022-03-08 Mirus Llc Metal alloys for medical devices
JP2017511203A (en) * 2014-08-14 2017-04-20 シークエント メディカル インコーポレイテッド Filament device for the treatment of vascular defects
DE102016116919B4 (en) * 2015-11-04 2018-05-17 Biotronik Ag X-ray marker for an endoprosthesis
US11766506B2 (en) 2016-03-04 2023-09-26 Mirus Llc Stent device for spinal fusion
EP3908208A4 (en) 2019-03-15 2022-10-19 Sequent Medical, Inc. Filamentary devices having a flexible joint for treatment of vascular defects
US11559309B2 (en) 2019-03-15 2023-01-24 Sequent Medical, Inc. Filamentary devices for treatment of vascular defects
US11317921B2 (en) 2019-03-15 2022-05-03 Sequent Medical, Inc. Filamentary devices for treatment of vascular defects

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CH651463A5 (en) * 1981-06-24 1985-09-30 Sulzer Ag STRING AND / OR TAPE REPLACEMENT.
SE445884B (en) * 1982-04-30 1986-07-28 Medinvent Sa DEVICE FOR IMPLANTATION OF A RODFORM PROTECTION
EP0257091B1 (en) * 1986-02-24 1993-07-28 Robert E. Fischell An intravascular stent and percutaneous insertion system
US4819618A (en) * 1986-08-18 1989-04-11 Liprie Sam F Iridium/platinum implant, method of encapsulation, and method of implantation
US5059166A (en) * 1989-12-11 1991-10-22 Medical Innovative Technologies R & D Limited Partnership Intra-arterial stent with the capability to inhibit intimal hyperplasia
US5139480A (en) * 1990-08-22 1992-08-18 Biotech Laboratories, Inc. Necking stents
EP0633798B1 (en) * 1992-03-31 2003-05-07 Boston Scientific Corporation Vascular filter
ATE207728T1 (en) * 1993-01-19 2001-11-15 Schneider Usa Inc IMPLANTABLE WIRE IN COMPOSITE CONSTRUCTION

Also Published As

Publication number Publication date
WO1995030384A3 (en) 1995-12-07
JPH09506025A (en) 1997-06-17
JP3415158B2 (en) 2003-06-09
CA2188429C (en) 2000-10-31
EP0758870A1 (en) 1997-02-26
WO1995030384A2 (en) 1995-11-16

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