公开(公告)号：US10278843B2

公开(公告)日：2019-05-07

申请号：US15550448

申请日：2016-02-08

Applicant: PIOLAX MEDICAL DEVICES, INC.

Inventor： Yoshihide Toyokawa ,  Kyosuke Shirakawa

IPC: A61F2/915 ,  A61F2/07 ,  A61F2/958 ,  A61F2/82

Abstract: A stent has strut parts bent in a zigzag shape, connected at both ends thereof, and formed in a ring shape, and bridge parts for connecting the strut parts in an axial direction, peak parts of strut parts excluding a strut part at the lead toward one end are all connected by bridge parts and clustered a plurality thereof at a time by the bridge parts, and connected to valley parts of struts adjacent toward the one end of the stent, and each strut part includes valley parts which are not connected to a bridge part.

公开(公告)号：US10080640B2

公开(公告)日：2018-09-25

申请号：US14785302

申请日：2014-04-15

Applicant: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY ,  PIOLAX MEDICAL DEVICES, INC.

Inventor： Masaru Tanaka ,  Makiko Aoki ,  Chikako Sato ,  Yoshihide Toyokawa ,  Kyosuke Shirakawa

IPC: A61F2/07 ,  A61F2/04 ,  A61F2/915 ,  A61L31/10 ,  A61F2/848

CPC classification number: A61F2/04 ,  A61F2/07 ,  A61F2/848 ,  A61F2/915 ,  A61F2002/041 ,  A61F2002/072 ,  A61F2002/9155 ,  A61F2002/91575 ,  A61L31/10 ,  C08L33/14

Abstract: Provided are a stent to be placed in the bile duct and a process for producing the stent, the stent hollow being less apt to be blocked even when the stent is placed in the bile duct for a long period. The inner peripheral surface of the stent is coated with a resin layer with resistance to sludge formation that includes a polymer obtained by polymerizing 2-methoxyethyl acrylate. This stent is produced by applying a coating fluid that contains 0.1-0.5 mass % polymer obtained by polymerizing 2-methoxyethyl acrylate, to the inner peripheral surface of a stent.