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1. WO2022162219 - CEREBRAL STENT

Publication Number WO/2022/162219
Publication Date 04.08.2022
International Application No. PCT/EP2022/052209
International Filing Date 31.01.2022
IPC
A61F 2/90 2013.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
86Stents in a form characterised by wire-like elements; Stents in a form characterised by a net-like or mesh-like structure
90characterised by a net-like or mesh-like structure
A61F 2/82 2013.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
CPC
A61F 2/90
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
90characterised by a net-like or mesh-like structure
A61F 2002/823
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
823Stents, different from stent-grafts, adapted to cover an aneurysm
A61F 2210/0076
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2210Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
0076multilayered, e.g. laminated structures
Applicants
  • CARDIATIS S.A. [BE]/[BE]
Inventors
  • FRID, Noureddine
  • MARCOUX, Eric
Agents
  • AWA BENELUX
Priority Data
21154577.701.02.2021EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CEREBRAL STENT
(FR) ENDOPROTHÈSE CÉRÉBRALE
Abstract
(EN) Implantable endoluminal prosthesis (1) for use in the treatment of aneurysm involving branches having a multilayer configuration, comprising at least one self-expandable braided framework extending along an axis able to expand from a radially compressed state in a delivery configuration to a radially expanded state; the self-expandable braided framework being formed by wires; this self-expandable braided framework devoid of any impermeable cover layer, comprising a plurality of layers of wires made of biocompatible material; and forming a wall of the endoluminal prosthesis; each layer forming a mesh; the meshes forming a lattice with a plurality of wires of said layers; the meshes being interlocked, the wires being integrated in the mesh of at least one of the adjacent layers; the self-expandable braided framework comprising a lumen in a cylindrical form with a circular cross-section and a constant diameter; characterized in that, the different layers of the plurality of layers have different surface coverage ratio, the ratio of the surface coverage ratio of the outer layer to the surface coverage ratio of the inner layer being at least 1,5.
(FR) Prothèse endoluminale implantable (1) pour l’utilisation dans le traitement de l’anévrisme impliquant des ramifications ayant une configuration multicouche, comprenant au moins un réseau tressé auto-expansible s’étendant le long d’un axe pouvant s’expanser depuis un état radialement comprimé sous une configuration d’administration vers un état radialement expansé ; le réseau tressé auto-expansible étant formé de fils ; ce réseau tressé auto-expansible étant dépourvu de quelconque couche de recouvrement imperméable, comprenant une pluralité de couches de fils constitués de matériau biocompatible ; et formant une paroi de la prothèse endoluminale ; chaque couche formant un maillage ; les mailles formant un réseau avec une pluralité de fils desdites couches ; les mailles étant enchevêtrées, les fils étant intégrés dans le maillage d’au moins l’une des couches adjacentes ; le réseau tressé auto-expansible comprenant une lumière d’une forme cylindrique ayant une section transversale circulaire et un diamètre constant ; caractérisée en ce que, les différentes couches de la pluralité de couches présentent différent rapport de couverture de surface, le rapport du rapport de couverture de surface de la couche externe au rapport de couverture de surface de la couche interne étant d’au moins 1,5.
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