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POLYMER STENT WITH RATCHET

外国特許コード F160008717
整理番号 (S2014-0991-N0)
掲載日 2016年4月14日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2015JP069060
国際公開番号 WO 2016002857
国際出願日 平成27年7月1日(2015.7.1)
国際公開日 平成28年1月7日(2016.1.7)
優先権データ
  • 特願2014-138602 (2014.7.4) JP
発明の名称 (英語) POLYMER STENT WITH RATCHET
発明の概要(英語) Facing sides of strut edges (3a) of a strut (3) that constitute a pair and that are linked to a link (2) are provided with a plurality of branching pieces (3b) protruding from one strut edge (3a) towards the other, and a plurality of ratchet teeth (3c) are formed along the sides of the branching pieces (3b). When a polymer stent (1) composed of struts (3) and links (2) forming a mesh is deformed in the diameter expansion direction of the cylindrical shape thereof, the pair of strut edges (3a) deform so as to approach one another, the branching pieces (3b) overlap one another, and the ratchet teeth (3c) interlock. Due to the interlocking action of the ratchet teeth (3c), while it is possible for the struts (3) to deform in the diameter expansion direction of the cylindrical shape of the polymer stent (1), deformation in the diameter contraction direction is inhibited. In so doing, the polymer stent (1) formed to cylindrical shape has a configuration that inhibits diameter-contracting deformation, and is adapted to indwell in blood vessels that have branches.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • YAMAGUCHI UNIVERSITY
  • 発明者(英語)
  • MINAMI KAZUYUKI
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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