-
Patent Agency Ranking
公开(公告)号：US20180264180A1
公开(公告)日：2018-09-20
申请号：US15988482
申请日：2018-05-24
Applicant: Japan Medical Device Technology Co., Ltd. , National University Corporation Kumamoto University
Inventor： Makoto SASAKI , Takuro NIIDOME , Zhen Yu JIN , Shuzo YAMASHITA
CPC classification number: A61L31/148 , A61F2/90 , A61F2/915 , A61F2002/91558 , A61F2210/0004 , A61F2210/0076 , A61F2240/001 , A61F2250/003 , A61F2250/0046 , A61L31/022 , A61L31/10 , A61L31/14 , A61L31/16 , A61L2300/416 , A61L2300/42 , A61L2300/608 , A61L2420/08 , C08L67/04
Abstract: 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.
-
公开(公告)号：US20220033974A1
公开(公告)日：2022-02-03
申请号：US17486372
申请日：2021-09-27
Applicant: Japan Medical Device Technology Co., Ltd.
Inventor： Shuzo YAMASHITA , Makoto SASAKI , Akira WADA
Abstract: To provide a magnesium alloy with improved corrosion resistance by surface modification, and a production method thereof. (1) The surface-modified magnesium alloy comprising: a magnesium alloy having an arbitrary shape; a magnesium fluoride layer formed by fluorination of the surface of the magnesium alloy; and a diamond-like carbon layer formed on the magnesium fluoride layer. (2) The method comprising: subjecting a surface of a magnesium alloy having an arbitrary shape to fluorination treatment to form a magnesium fluoride layer on the surface of the magnesium alloy, and then subjecting the magnesium alloy with the magnesium fluoride layer to be placed in a high-frequency plasma CVD device such that a source gas containing carbon is introduced to form a diamond-like carbon layer on the magnesium fluoride layer.
-
公开(公告)号：US20220008625A1
公开(公告)日：2022-01-13
申请号：US17486150
申请日：2021-09-27
Applicant: Japan Medical Device Technology Co., Ltd.
Inventor： Shuzo YAMASHITA , Makoto SASAKI , Akira WADA
Abstract: A bioabsorbable implant for non-luminal region comprising: a core structure including a magnesium alloy having a predetermined shape; a first corrosion-resistant layer containing a magnesium fluoride layer as a main component formed on the core structure via fluorination of a surface of the magnesium alloy; and a second corrosion-resistant layer containing a parylene formed on the magnesium fluoride layer.
-
公开(公告)号：US20210115539A1
公开(公告)日：2021-04-22
申请号：US17138492
申请日：2020-12-30
Applicant: Japan Medical Device Technology Co., LTD.
Inventor： Hironori UEDA , Masashi INOUE , Makoto SASAKI
IPC: C22C23/04
Abstract: A magnesium alloy containing, in % by mass, 0.95 to 2.00% of Zn, 0.05% or more and less than 0.30% of Zr, 0.05 to 0.20% of Mn, and the balance consisting of Mg and unavoidable impurities, wherein the magnesium alloy has a particle size distribution with an average crystal particle size from 1.0 to 3.0 μm and a standard deviation of 0.7 or smaller.
-
公开(公告)号：US20190330718A1
公开(公告)日：2019-10-31
申请号：US16506298
申请日：2019-07-09
Inventor： Hironori UEDA , Masashi INOUE , Makoto SASAKI
Abstract: Magnesium alloy containing, in % by mass, 1.0 to 2.0% of Zn, 0.05 to 0.80% by mass of Zr, 0.05 to 0.40% by mass of Mn, and the balance consisting of Mg and unavoidable impurities. The magnesium alloy may further contain, in % by mass, 0.005% or more and less than 0.20% of Ca.
-
-
-
-
Search Results
15
records
(took 0.018 seconds)
