Provided is a biodegradable polymer coating stent effective in delaying the damage of physical properties (particularly radial force) of a core structure. The stent includes a core structure of a bioabsorbable material (e.g., Mg), a first coating layer of a first polymer with biodegradability, and a second coating layer of a second polymer with biodegradability, wherein the first coating layer covers the whole surface of the core structure; the second coating layer covers a part or the whole surface of the first coating layer; the first polymer has a glass transition point of lower than 37°C; and the second polymer has a glass transition point of 47°C or higher.
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Published patent application
Disclosure date: 11-25-2016
Publication date: 10-03-2018
Applicant: JAPAN MEDICAL DEVICE TECH CO LTD, JP ; NATIONAL UNIV CORPORATION KUMAMOTO UNIV, JP
Inventor: JIN ZHEN YU, JP ; NIIDOME TAKURO, JP ; SASAKI MAKOTO, JP ; YAMASHITA SHUZO, JP
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