WO1999055253B1 - Tubular and flexible vascular prosthesis - Google Patents

Tubular and flexible vascular prosthesis

Info

Publication number
WO1999055253B1
WO1999055253B1 PCT/FR1999/000989 FR9900989W WO9955253B1 WO 1999055253 B1 WO1999055253 B1 WO 1999055253B1 FR 9900989 W FR9900989 W FR 9900989W WO 9955253 B1 WO9955253 B1 WO 9955253B1
Authority
WO
WIPO (PCT)
Prior art keywords
lines
straight lines
segments
broken
broken lines
Prior art date
Application number
PCT/FR1999/000989
Other languages
French (fr)
Other versions
WO1999055253A1 (en
Inventor
Xavier Favereau
Original Assignee
Microval S A R L
Xavier Favereau
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 Microval S A R L, Xavier Favereau filed Critical Microval S A R L
Priority to AU34280/99A priority Critical patent/AU3428099A/en
Publication of WO1999055253A1 publication Critical patent/WO1999055253A1/en
Publication of WO1999055253B1 publication Critical patent/WO1999055253B1/en

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
    • 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
    • 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
    • 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
    • A61F2002/91516—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 the meander having a change in frequency along the band
    • 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
    • A61F2002/91525—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 within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
    • 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
    • A61F2002/91533—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 characterised by the phase between adjacent bands
    • 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
    • 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
    • A61F2230/0017—Angular shapes
    • 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
    • A61F2230/0054—V-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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention concerns a tubular and flexible prosthesis with meshed structure consisting of a plurality of deformable units, characterised in that the structure consists of: a series of parallel straight lines (1) evenly distributed over a circumference; the parallel straight lines (1) are connected to symmetrical broken lines (2 and 3), the set of said broken lines having predetermined geometric form and dimensions to ensure that the structure unfolds symmetrically and uniformly by having an elastic slip less than 1 %; each straight line (1) has, between the connecting broken lines (2 and 3) and symmetrically, broken lines (4) having predetermined geometric form and dimensions for providing the structure with flexibility while preventing variation in its length.

Claims

1 7 1 7
REVENDICATIONS MODIFIEESAMENDED CLAIMS
[reçues par le Bureau international le 21 octobre 1999 (21.10.99); rev endications originales 1 -9 remplacées par les nouvelles revendications 1 -4 (2 pages)][received by the International Bureau on October 21, 1999 (21.10.99); rev endications original 1 -9 replaced by the new claims 1 -4 (2 pages)]
-1- Endoprothèse vasculaire tubulaire et flexible présentant une structure maillée composée d'une pluralité de motifs déformables délimitant deux zones d'extrémité et au moins une zone intermédiaire, caractérisé en ce que la structure est constituée :-1- Tubular and flexible stent having a mesh structure composed of a plurality of deformable patterns delimiting two end zones and at least one intermediate zone, characterized in that the structure consists:
- de quatre lignes droites parallèles (1) régulièrement réparties sur une circonférence, - les lignes droites parallèles (1) sont raccordées par des lignes brisées d'extrémités (2) constituées par deux segments rectilignes (2a - 2b) délimitant un V symétrique dont le sommet est dirigé à l'intérieur de la structure et par des lignes brisées intermédiaires (3) constituées par trois segments rectilignes (3 a - 3b - 3 c) délimitant deux V identiques et opposés réunis par un segment commun (3b), l'ensemble desdites lignes brisées assurant le déploiement de la structure d'une manière symétrique et régulière en ayant un recul élastique inférieur à 1%,- four parallel straight lines (1) regularly distributed over a circumference, - the parallel straight lines (1) are connected by broken lines at the ends (2) formed by two rectilinear segments (2a - 2b) delimiting a symmetrical V whose the apex is directed inside the structure and by intermediate broken lines (3) constituted by three rectilinear segments (3 a - 3b - 3 c) delimiting two identical and opposite V's joined by a common segment (3b), l all of said broken lines ensuring the deployment of the structure in a symmetrical and regular manner while having an elastic recoil of less than 1%,
- chaque ligne droite (1) présente, entre les lignes brisées de raccordement (2 et 3) et d'une manière symétrique, des lignes brisées (4) constituées par trois segments rectilignes (4a - 4b - 4c) délimitant deux V identiques et opposés réunis par un segment commun (4b) et symétriquement par les deux autres segments (4a - 4c) à chacune desdites lignes droites (1) pour conférer une souplesse axiale à la structure tout en réduisant une variation de sa longueur lors de la dilatation, d'une part, et permettant la dilatation d'une maille sans déformation de la structure, d'autre part.- each straight line (1) has, between the broken connecting lines (2 and 3) and in a symmetrical manner, broken lines (4) formed by three rectilinear segments (4a - 4b - 4c) delimiting two identical V's and opposite joined by a common segment (4b) and symmetrically by the other two segments (4a - 4c) to each of said straight lines (1) to give axial flexibility to the structure while reducing a variation in its length during expansion, on the one hand, and allowing the expansion of a mesh without deformation of the structure, on the other hand.
-2- Endoprothèse selon la revendication 1, caractérisée en ce que les deux segments (2a - 2b) du V sont raccordés aux extrémités des lignes droites 1 8-2- Endoprosthesis according to claim 1, characterized in that the two segments (2a - 2b) of the V are connected to the ends of the straight lines 1 8
parallèles (1) correspondant par des segments rectilignes de longueur réduite orientées perpendiculairement auxdites lignes droites (1).parallel (1) corresponding by rectilinear segments of reduced length oriented perpendicular to said straight lines (1).
-3- End. ^ _ Jthèse selon la revendication 1, caractérisée en ce que les deux segments (3 - 3c) de chacun des deux N opposés, sont raccordés aux lignes droites parallèles correspondantes (1), par des segments rectilignes de longueur réduites orientés perpendiculairement auxdites lignes droites (1).-3- End. ^ _ Jthèse according to claim 1, characterized in that the two segments (3 - 3c) of each of the two opposite N, are connected to the corresponding parallel straight lines (1), by rectilinear segments of reduced length oriented perpendicular to said straight lines (1).
-4- Endoprothèse selon la revendication 1, caractérisée en ce que les lignes brisées (4) de chacune des lignes droites (1) sont disposées à égales distance de chacune des lignes brisées de raccordement (2 - 3). -4- Endoprosthesis according to claim 1, characterized in that the broken lines (4) of each of the straight lines (1) are arranged at equal distance from each of the broken connecting lines (2 - 3).
PCT/FR1999/000989 1998-04-27 1999-04-27 Tubular and flexible vascular prosthesis WO1999055253A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34280/99A AU3428099A (en) 1998-04-27 1999-04-27 Tubular and flexible vascular prosthesis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9805588A FR2777771B1 (en) 1998-04-27 1998-04-27 TUBULAR AND FLEXIBLE VASCULAR ENDOPROSTHESIS
FR98/05588 1998-04-27

Publications (2)

Publication Number Publication Date
WO1999055253A1 WO1999055253A1 (en) 1999-11-04
WO1999055253B1 true WO1999055253B1 (en) 1999-12-02

Family

ID=9525976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1999/000989 WO1999055253A1 (en) 1998-04-27 1999-04-27 Tubular and flexible vascular prosthesis

Country Status (3)

Country Link
AU (1) AU3428099A (en)
FR (1) FR2777771B1 (en)
WO (1) WO1999055253A1 (en)

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AU3428099A (en) 1999-11-16
FR2777771B1 (en) 2000-08-25
FR2777771A1 (en) 1999-10-29

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