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公开(公告)号：US20160067069A1
公开(公告)日：2016-03-10
申请号：US14785304
申请日：2014-04-15
Applicant: PIOLAX MEDICAL DEVICES, INC.
Inventor： Kiyoshi YAMAUCHI , Michihiro UEGAKI , Yoshihide TOYOKAWA
CPC classification number: A61F2/91 , A61F2/915 , A61F2210/0014 , A61F2240/001 , A61L31/022 , B23K26/146 , B23K26/38 , B23K26/40 , B23K2103/14 , C22C19/007 , C22C19/07 , C22F1/10
Abstract: This stent is a self-expandable stent constituted of an Ni—Ti base alloy or Co—Cr base alloy and formed into a cylindrical shape with mesh openings. The stent has been configured so that the Af point is 22-26° C., the stress-displacement curve has a yield point, and the crystal grains in a cross-section of the stent have an average cross-sectional area, as determined by the area fraction method, of 0.2-50 μm2.
Abstract translation: 该支架是由Ni-Ti基合金或Co-Cr基合金构成的自膨胀支架，并形成为具有网孔的圆筒形状。 支架已经被配置为使得Af点为22-26℃，应力 - 位移曲线具有屈服点，并且支架横截面中的晶粒具有如所确定的平均横截面积 按面积分数法计算为0.2〜50μm。
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公开(公告)号：US20160074149A1
公开(公告)日：2016-03-17
申请号：US14785302
申请日：2014-04-15
Inventor： Masaru TANAKA , Makiko AOKI , Chikako SATO , Yoshihide TOYOKAWA , Kyosuke SHIRAKAWA
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.
Abstract translation: 提供放置在胆管中的支架和用于制造支架的方法，即使当支架长时间放置在胆管中时，支架中空也不容易被阻挡。 支架的内周面涂覆有耐污泥形成的树脂层，其包括通过聚合丙烯酸2-甲氧基乙酯获得的聚合物。 该支架通过将包含0.1-0.5质量％聚合丙烯酸2-甲氧基乙酯得到的聚合物的涂布液施加到支架的内周面来制造。
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公开(公告)号：US20180028337A1
公开(公告)日：2018-02-01
申请号：US15550448
申请日：2016-02-08
Applicant: PIOLAX MEDICAL DEVICES, INC.
Inventor： Yoshihide TOYOKAWA , Kyosuke SHIRAKAWA
CPC classification number: A61F2/915 , A61F2/07 , A61F2/958 , A61F2002/072 , A61F2002/825 , A61F2002/91541 , A61F2002/91575
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.
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公开(公告)号：US20160270934A1
公开(公告)日：2016-09-22
申请号：US14778003
申请日：2014-01-31
Applicant: PIOLAX MEDICAL DEVICES, INC.
Inventor： Masayuki KITANO , Hajime IMAI , Yoshihide TOYOKAWA , Kyosuke SHIRAKAWA
IPC: A61F2/90
CPC classification number: A61F2/90 , A61F2/07 , A61F2/89 , A61F2/91 , A61F2/915 , A61F2002/072 , A61F2002/91575 , A61F2210/0076 , A61F2230/0069
Abstract: A stent, in which a silicone film can be formed in a small thickness and uniformly and the diameter of the stent can be reduced, includes: a tubular stent main body which is formed by processing a metal tube or a metal sheet or weaving a metal wire material and has mesh-like openings; an inside cover which is so coated around the stent main body as to cover the mesh-like openings and is composed of a polyurethane film; and an outside cover which is coated on the outer periphery of the stent main body and the inside cover and is composed of a silicone film.
Abstract translation: 能够减小硅膜的厚度均匀且能够缩小支架的直径的支架，其特征在于，包括：通过加工金属管或金属板或编织金属而形成的管状支架主体 线材，并具有网状开口; 内盖，其被覆在支架主体周围以覆盖网状开口，并由聚氨酯膜构成; 以及涂覆在支架主体和内盖的外周上并由硅酮膜构成的外盖。
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