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ステントおよびステントグラフト
专利权人:
日本ライフライン株式会社
发明人:
中野 英一,小林 史明
申请号:
JP2015004541
公开号:
JP6177259B2
申请日:
2015.01.13
申请国别(地区):
JP
年份:
2017
代理人:
摘要:
To provide a stent having a fine mesh with no deterioration in the diameter reducibility and the curved-part followability and in which the reconstriction caused by tumor tissues that may enter the lumen of the stent placed in a tubular organ can therefore be prevented. A stent according to the present invention includes a first woven structure (10) including peripheral-direction units (11 to 13) that are arranged next to one another in an axial direction and each have a plurality of mesh spaces provided next to one another in a peripheral direction, and a second woven structure (20) including peripheral-direction units (21 to 23) that are arranged next to one another in the axial direction in correspondence with the peripheral-direction units (11 to 13) of the first woven structure (10) and each have a plurality of mesh spaces provided next to one another in the peripheral direction. The peripheral-direction units of the second woven structure (20) are each shifted from a corresponding one of the peripheral-direction units of the first woven structure by 1/4 pitch in the peripheral direction and are woven together with the corresponding peripheral-direction units of the first woven structure. Regarding adjacent ones of the peripheral-direction units of the second woven structure (20), bent parts of one of the adjacent peripheral-direction units are connected to neither bent parts nor wire intersections of the other peripheral-direction unit.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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