Yamagata University

Toyoda Gosei Co., Ltd.

Piolax Medical Devices, Inc.

National University Corporation Yamagata University

Chikako Sato

Masaru Tanaka

Yasuhiko Ogisu

Hisashi Mizuno

Hiroyuki Nakagawa

Seitaro Taki

Atsuki Yoshimura

Yasuhiko Shinoda

Yoshihide Toyokawa

Kyosuke Shirakawa

Toshiyuki Hagiyama

Makiko Aoki

A cell culture device comprises a first inner cylinder formed in a tubular shape, a cell culture membrane placed to cover over an entire one end of the first inner cylinder and configured to be folded down toward an outer surface of the first inner cylinder along an outer circumference at the one end of the first inner cylinder, and an outer cylinder formed in a tubular shape, configured to place the first inner cylinder inside thereof such that a height direction of the outer cylinder is identical with a height direction of the first inner cylinder, and provided with a first slit in an area overlapping with at least the one end of the first inner cylinder to be extended in the height direction, wherein the cell culture membrane is held between an inner wall surface of the outer cylinder and the outer surface of the first inner cylinder.

Cell culture device

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.

Stent to be placed in bile duct

Growing community of inventors

Yonezawa, Japan

Chikako Sato