-
公开(公告)号：KR20200139129A
公开(公告)日：2020-12-11
申请号：KR20207018846
申请日：2019-01-25
Applicant: TORAY INDUSTRIES
Inventor： KOGAWA TAISUKE , FUJITA MASAKI , KOYAMATSU YUICHI , TANAHASHI KAZUHIRO , KIDOBA KAZUYUKI
Abstract: 본발명은높은추종성과우수한분해성을구비한생분해성을갖는블록공중합체를제공하는것을목적으로하고있다. 본발명은폴리알킬렌글리콜블록과, 폴리히드록시알칸산블록으로이루어지며, 전체질량에대한폴리알킬렌글리콜블록의질량비율이 10~60%이며, 카르보닐탄소의탄소핵완화시간 T1ρ가 20ms 이하이며, 하기식 1을충족하는블록공중합체를제공한다. χ=χ1×χ2≥20 …식 1 χ1: 폴리알킬렌글리콜블록의결정화율χ2: 폴리히드록시알칸산블록에포함되는반복단위중 단일의반복단위로이루어지는호모폴리머의결정화율이가장높은반복단위를 A라고했을때의폴리 A 블록의결정화율
-
公开(公告)号：CA2947823C
公开(公告)日：2021-11-23
申请号：CA2947823
申请日：2015-05-08
Applicant: TORAY INDUSTRIES , INOUE KANJI
Inventor： INOUE KANJI , YAGI TAKAHIRO , FUJITA MASAKI , KADOWAKI KOJI , TANAHASHI KAZUHIRO
IPC: A61F2/01
Abstract: The present invention relates to an endovascular treatment aiding device. A conical filter which can be opened and closed like an umbrella is fixed to a flexible shaft to form closed-end and opening sections in the distal and proximal side respectively. The filter bottom is formed by a ring having elastic restoring force fixed to the opening section when the filter is open. A support composed of linear members enables the filter to close when an external force is applied to the proximal side. When the filter is closed, mountains and valleys are alternately formed in the ring so that the mountains are close to each other and the valleys are close to each other. Coils of radio-opaque material are wound around the ring such that the coils contain the positions fixed by the supporting member on the ring except for the peaks of the mountains and the valleys.
-
公开(公告)号：ES2778726T3
公开(公告)日：2020-08-11
申请号：ES09727576
申请日：2009-03-30
Applicant: TORAY INDUSTRIES
Inventor： UENO YOSHIYUKI , FUJITA MASAKI , SUGAYA HIROYUKI
Abstract: Una membrana de separación, que comprende una membrana que comprende un polímero, en donde la membrana tiene una capa funcional en un lado de la superficie, la capa funcional tiene una superficie que muestra un porcentaje de área de pico de éster de carbono del 0,1 (% at.) al 10 (% at.) medido mediante espectroscopía electrónica de rayos X (ESCA) de acuerdo con la descripción, la membrana tiene una superficie opuesta respecto de la capa funcional, y la superficie opuesta muestra un área de pico de éster de carbono del 10 (% at.) o menor, medido mediante espectroscopía electrónica de rayos X (ESCA) de acuerdo con la descripción, en donde la membrana de separación es una membrana de fibra hueca, en donde el éster procede de un polímero que contiene grupo éster, en donde el polímero que contiene grupo éster es acetato de polivinilo o un copolímero de acetato de vinilo y vinilpirrolidona, en donde la membrana se obtiene recubriendo la membrana de separación con un polímero de acetato de polivinilo o un copolímero de acetato de vinilo y vinilpirrolidona en una concentración del 0,001 % en peso al 0,1 % en peso, seguido de reticulación mediante radiación o tratamiento con calor, en donde se usa un polímero hidrófobo como un material de base para la membrana, en donde el polímero hidrófobo se selecciona entre polisulfona, polietersulfona y poliariletersulfona.
-
公开(公告)号：RU2675107C1
公开(公告)日：2018-12-17
申请号：RU2017135400
申请日：2016-05-27
Applicant: TORAY INDUSTRIES
Inventor： TANAHASHI KAZUHIRO , FUJITA MASAKI , NAKANISHI MEGUMI , SAITO AKIHIRO , KADOWAKI KOJI
Abstract: Группаизобретенийотноситсяк медицине. Описанантитромбогенныйматериал, включающий: покровныйматериал, содержащийкатионныйполимери анионноесоединение, содержащееатомсерыи имеющееантикоагулянтнуюактивность; ибазовыйматериал, поверхностькоторогопокрытапокровнымматериалом; вкоторомкатионныйполимерковалентносвязанс базовымматериалом; анионноесоединениеиммобилизованонаповерхностибазовогоматериалаионнойсвязьюс катионнымполимером; исредняятолщинапокровногоматериаласоставляетот 15 до 400 нм. Антитромбогенныйматериалимеетуменьшеннуютолщинуегопокровногоматериалаи сохраняетвысокуюантитромбогенностьв течениедлительногопериодавремени. 2 н. и 6 з.п. ф-лы, 3 табл., 13 пр.
-
公开(公告)号：CA2928629C
公开(公告)日：2018-04-17
申请号：CA2928629
申请日：2014-11-27
Applicant: TORAY INDUSTRIES
Inventor： KADOWAKI KOJI , FUJITA MASAKI , SAKAGUCHI YUKA , TANAHASHI KAZUHIRO
IPC: A61L33/10
Abstract: The present invention aims to provide an antithrombogenic material which is highly safe with its low hemolytic toxicity, and capable of maintaining high antithrombogenicity for a long period. The present invention provides an antithrombogenic material comprising: a coating material containing a polymer containing, as a constituent monomer, a compound selected from the group consisting of alkyleneimines, vinylamines, allylamines, lysine, protamine, and diallyldimethylammonium chloride, and an anionic compound containing a sulfur atom and having anticoagulant activity; and a base material whose surface is coated with the coating material; wherein the polymer is covalently bound to the base material, and the abundance ratio of nitrogen atoms to the abundance of total atoms as measured by X-ray photoelectron spectroscopy on the surface is 6.0 to 12.0 atomic percent.
-
Patent Agency Ranking
公开(公告)号：AU2014355414B2
公开(公告)日：2017-06-01
申请号：AU2014355414
申请日：2014-11-27
Applicant: TORAY INDUSTRIES
Inventor： KADOWAKI KOJI , FUJITA MASAKI , SAKAGUCHI YUKA , TANAHASHI KAZUHIRO
IPC: A61L33/10
Abstract: The purpose of the present invention is to provide an antithrombotic material capable of enhancing safety in terms of low hemolytic toxicity and actualizing a high antithrombotic property persistently over an extended period of time. The prtesent invention provides an antithrombotic material furnished with a covering material, including a polymer containing a compound selected from the group consisting of alkylene imine, vinyl amine, allyl amine, lysine, protamine, and diallyl dimethyl ammonium chloride as a structural monomer and a sulfur atom-containing anionic compound having anticoagulant activity, and a base material, the surface of which is covered by this covering material, wherein the polymer bonds covalently with the base material and the abundance ratio of nitrogen atoms to the abundance of all atoms measured by X-ray electron spectroscopy on the surface is 6.0-12.0 atom%.
-
公开(公告)号：CA2865083C
公开(公告)日：2016-08-16
申请号：CA2865083
申请日：2013-03-28
Applicant: TORAY INDUSTRIES
Inventor： FUJITA MASAKI , NAKANISHI MEGUMI , TANAHASHI KAZUHIRO
IPC: A61L31/00 , A61L15/16 , C08G63/06 , C08L101/16
Abstract: The present invention aims to provide a biodegradable material having an improved biodegradability, an enhanced shape recovery rate after deformation of the material and an improved flexibility. The present invention provides a biodegradable material which is a chemically cross-linked product of: a multivalent compound A having 3 or more functional groups X such as hydroxyl group; a multivalent compound B having 3 or more functional groups Y such as carboxyl group; and a compound C having a structure originated from a hydroxycarboxylic acid whose homopolymer formed by homopolymerization has a glass transition point of -40°C or lower.
-
公开(公告)号：AU2014367836A1
公开(公告)日：2016-06-16
申请号：AU2014367836
申请日：2014-12-16
Applicant: TORAY INDUSTRIES
Inventor： TSUCHIKURA HIROSHI , YAMADA SATOSHI , KUWABARA ATSUSHI , TOKUDA AKIHIRO , TANAHASHI KAZUHIRO , FUJITA MASAKI , KADOWAKI KOJI
Abstract: Provided is an artificial blood vessel made of fabric that enables the amount of blood leaking from gaps in fibers to be reduced. The artificial blood vessel comprises a cylindrical multiple woven fabric structure, and uses a microfiber multifilament yarn having a single yarn fineness of 0.5 dtex or less as a warp yarn mainly constituting an inner layer that comes into contact with blood, and a multifilament yarn having a single yarn fineness of 1.0 dtex or higher as a warp yarn mainly constituting an outer layer, wherein the apparent cover factor of the inner layer is 2,000 or higher.
-
公开(公告)号：CA2935808A1
公开(公告)日：2015-08-20
申请号：CA2935808
申请日：2015-02-12
Applicant: TORAY INDUSTRIES
Inventor： FUJITA MASAKI , KADOWAKI KOJI , SAKAGUCHI YUKA , TANAHASHI KAZUHIRO , TSUCHIKURA HIROSHI , YAMADA SATOSHI
Abstract: Provided is an artificial blood vessel comprising a cylindrical 3D woven textile structure with minimal blood leakage and which combines antithrombotic properties and cellular affinity. This artificial blood cell is a cylindrical textile structure having positioned therein a cylindrical textile, the inner surface of which comes into contact with blood, the cylindrical textile being a textile obtained by interweaving a plurality of warp yarns and a plurality of weft yarns, the warp yarns and weft yarns that constitute the cylindrical textile containing a multi-filament yarn having a single filament fineness not exceeding 0.50dtex, bonded with an antithrombotic material, the antithrombotic material forming an antithrombotic material layer having a thickness of 1-600nm on the inside of the cylindrical textile, and the water permeability when the inner surface is subjected to a pressure of 16kPa being less than 300mL/cm2/min.
-
10.发明专利
公开(公告)号：CA2831414A1
公开(公告)日：2012-10-04
申请号：CA2831414
申请日：2012-03-29
Applicant: TORAY INDUSTRIES
Inventor： FUJITA MASAKI , NAKANISHI MEGUMI , YAMAMURA YASUFUMI , TANAHASHI KAZUHIRO
IPC: A61L31/00 , C08G63/08 , C08G81/00 , C08L101/14 , C08L101/16
Abstract: The purpose of the invention is to provide a biodegradable vascular embolization material for which aggregation does not occur easily, pliability has been improved, and particle shape is restored after being passed through a catheter, etc. The invention provides biodegradable particles obtained from a block copolymer wherein: a biodegradable copolymer having structures obtained from a hydroxycarboxylic acid (a1), the glass transition point of the homopolymerized homopolymer of which is 40°C or higher, and a hydroxycarboxylic acid (a2), the glass transition point of the homopolymerized homopolymer of which is -40°C or less; a water-soluble polymer having functional groups selected from the group consisting of hydroxyl groups, amino groups and carboxylic acid groups, on both ends; and a polyvalent compound having two or more functional groups selected from the group consisting of hydroxyl groups, amino groups and carboxylic acid groups, are copolymerized, and the mass percent of structures obtained from the hydroxycarboxylic acid (a2) with respect to the mass of the biodegradable copolymer is 30 - 90 mass%.
-
-
-
-
-
-
-
-
-
Search Results
70
records
(took 0.025 seconds)
