公开(公告)号：US20210267778A1

公开(公告)日：2021-09-02

申请号：US17323317

申请日：2021-05-18

Applicant: OLYMPUS CORPORATION

Inventor： Ryosuke SAKAI ,  Toshihiro YAMAGATA ,  Kazuhiro NODA ,  Yuko KIRINO ,  Nozomu KOTAKE

IPC: A61F2/88 ,  A61F2/966

Abstract: A medical stent including: a tubular main body made of resin that extends along an axis; a first locking member including a first fixed end fixed to the distal end side of the main body, and a first free end positioned radially outward of the main body; a second locking member including a second fixed end fixed to the proximal end side of the main body, and a second free end positioned radially outward of the main body; and a spiral reinforcing material made of metal which is embedded between the inner and outer circumferential surfaces of the main body. The reinforcing material includes a first portion spirally wound between the first and second fixed ends, a second portion spirally wound at a pitch greater than that of the first portion, and a third portion spirally wound at a pitch greater than that of the second portion.