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1. WO2020196913 - STENT

Publication Number WO/2020/196913
Publication Date 01.10.2020
International Application No. PCT/JP2020/014488
International Filing Date 30.03.2020
IPC
A61F 2/848 2013.01
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
848having means for fixation to the vessel wall, e.g. barbs
A61F 2/90 2013.01
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
Applicants
  • 株式会社ジェイ・エム・エス JMS CO., LTD. [JP]/[JP]
Inventors
  • 井手 純一 IDE Junichi
  • 柏木 亜紀江 KASHIWAGI Akie
Agents
  • 加藤 竜太 KATO Ryuta
  • 芝 哲央 SHIBA Tetsuo
Priority Data
2019-06312528.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) STENT
(FR) ENDOPROTHÈSE
(JA) ステント
Abstract
(EN)
Provided is a stent that exhibits the ability to follow peristaltic movement, and that has an end flare part making it possible to curb positional offset, with respect to peristaltic movement, after stenting. A stent 6 is provided with an end flare part 72 arranged at an axial end, and is formed of a wire material, wherein: the end flare part 72 is formed in an annular shape if viewed in the axial direction, such annular shape the result of disposing, continuously in the circumferential direction, a plurality of peaks 721 each made of a distal end corner that protrudes outward in the axial direction; in a state where the stent 6 has been placed in the gastrointestinal tract, an angle θ formed by two sides 721a, 721a constituting each peak 721 is 80° or less; and the number of the plurality of peaks 721 is 3 to 11.
(FR)
L'invention concerne une endoprothèse qui présente la capacité de suivre un mouvement péristaltique, et dont une partie d'extrémité évasée permet de limiter le décalage de position, par rapport au mouvement péristaltique, après la pose de l'endoprothèse. Une endoprothèse (6) est pourvue d'une partie d'extrémité évasée (72) agencée à une extrémité axiale, et est formée d'un matériau métallique : la partie d'extrémité évasée (72) est de forme annulaire si elle est vue dans la direction axiale, une telle forme annulaire résultant de la disposition, continuellement dans la direction circonférentielle, d'une pluralité de pics (721) chacun constitué d'un coin d'extrémité distale qui fait saillie vers l'extérieur dans la direction axiale ; dans un état dans lequel l'endoprothèse (6) a été placée dans le tractus gastro-intestinal, un angle θ formé par deux côtés (721a, 721a) constituant chaque pic (721) est de 80° ou moins ; le nombre de la pluralité de pics (721) est de 3 à 11.
(JA)
消化管の蠕動運動に対する追従性を発揮可能であるとともに、消化管の蠕動運動に対する留置後の位置ずれを抑制できる端部フレア部を有するステントを提供すること。 ステント6は、軸方向の端部に配置された端部フレア部72を備え、線材により形成されるステントであって、端部フレア部72は、軸方向の外側に突出する先端角部からなる山部721が周方向に連続して複数配置されることで、軸方向に視た場合に環状に形成され、ステント6が消化管に留置された状態において、山部721を構成する2辺721a,721aの成す角度θは、80°以下であり、複数の山部721の数は、3~11個である。
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