CA2173644A1 - Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation - Google Patents

Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation

Info

Publication number
CA2173644A1
CA2173644A1 CA002173644A CA2173644A CA2173644A1 CA 2173644 A1 CA2173644 A1 CA 2173644A1 CA 002173644 A CA002173644 A CA 002173644A CA 2173644 A CA2173644 A CA 2173644A CA 2173644 A1 CA2173644 A1 CA 2173644A1
Authority
CA
Canada
Prior art keywords
self
cavity
medical device
tubular body
wound
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
CA002173644A
Other languages
French (fr)
Other versions
CA2173644C (en
Inventor
Noureddine Frid
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.)
Corvita Corp
Original Assignee
Corvita Corp
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 Corvita Corp filed Critical Corvita Corp
Publication of CA2173644A1 publication Critical patent/CA2173644A1/en
Application granted granted Critical
Publication of CA2173644C publication Critical patent/CA2173644C/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
    • 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
    • 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
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0073—Quadric-shaped
    • A61F2230/0078—Quadric-shaped hyperboloidal
    • 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
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter

Abstract

A self-expanding stent for a medical device to be introduced into a cavity of a human body, is disclosed and includes a radially expandable and axially retractable tubular body (1), characterized in that the tubular body comprises first flexible rigid filaments (2, 3) which are arranged side by side in a number at least equal to two, wound along a first helicoid direction around a longitudinal axis (4) of the tubular body, and second flexible rigid filaments (5, 6) which are arranged side by side in a number at least equal to two, wound along a second helicoid direction opposite to the first, each multiple filament wound in one of the said directions crossing multiple filaments wound in the other direction according to a plaited arrangement.
Methods for reproducibly forming the stent of the invention are disclosed.
CA002173644A 1995-04-12 1996-04-09 Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation Expired - Fee Related CA2173644C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9500334A BE1009277A3 (en) 1995-04-12 1995-04-12 Guardian self-expandable medical device introduced in cavite body, and method of preparation.
BE09500334 1995-12-04

Publications (2)

Publication Number Publication Date
CA2173644A1 true CA2173644A1 (en) 1996-10-13
CA2173644C CA2173644C (en) 2007-06-12

Family

ID=3888924

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002173644A Expired - Fee Related CA2173644C (en) 1995-04-12 1996-04-09 Self-expanding stent for a medical device to be introduced into a cavity of a body, and method for its preparation

Country Status (3)

Country Link
US (2) US5849037A (en)
BE (1) BE1009277A3 (en)
CA (1) CA2173644C (en)

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US9925074B2 (en) 1999-02-01 2018-03-27 Board Of Regents, The University Of Texas System Plain woven stents

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US5849037A (en) 1998-12-15
CA2173644C (en) 2007-06-12
US6237460B1 (en) 2001-05-29
BE1009277A3 (en) 1997-01-07

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