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    BIODEGRADABLE MATERIAL AND METHOD FOR PRODUCING BIODEGRADABLE MATERIAL
    51.
    发明专利
    BIODEGRADABLE MATERIAL AND METHOD FOR PRODUCING BIODEGRADABLE MATERIAL 未知

    公开(公告)号：CA2865083A1

    公开(公告)日：2013-10-03

    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 objective of the present invention is to provide a biodegradable material having improved flexibility, an increased percentage of shape recovery after the material has been deformed, and improved biodegradability. The present invention provides a biodegradable material resulting from chemically crosslinking: a polyvalent compound (A) having at least three functional groups (X) such as hydroxyl groups; a polyvalent compound (B) having at least three functional groups such as carboxyl groups; and a compound (C) having a structure derived from a hydroxycarboxylic acid and having a glass transition point of the homopolymerized homopolymer thereof of no greater than -40°C.

    BIODEGRADABLE PARTICLES FOR MEDICAL TREATMENT AND VASCULAR EMBOLIZATION MATERIAL
    52.
    发明专利
    BIODEGRADABLE PARTICLES FOR MEDICAL TREATMENT AND VASCULAR EMBOLIZATION MATERIAL 未知

    公开(公告)号：CA2821486A1

    公开(公告)日：2012-06-28

    申请号：CA2821486

    申请日：2011-12-19

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAMURA YASUFUMI ,  TANAHASHI KAZUHIRO ,  NAKANISHI MEGUMI ,  FUJITA MASAKI

    IPC: A61L31/00 ,  C08G63/66

    Abstract: The purpose of the invention is to provide biodegradable particles for medical treatment and a vascular embolization material, the inadequate softness of which has been improved, the particles do not aggregate with each other easily, and the particle shape-restoring force after passing through a catheter, etc. has been improved. The invention provides biodegradable particles for medical treatment obtained from a tri-block copolymer of an A1-B-A2 form, wherein A1 and A2 are blocks of biodegradable copolymers configured from monomers comprising glycolic acid, lactic acid and 6-hydroxycaproic acid, and B is a block of a water-soluble polymer.

    ARTIFICIAL BLOOD VESSEL
    56.
    发明公开
    ARTIFICIAL BLOOD VESSEL 有权
    人造血血管

    公开(公告)号：EP2990010A4

    公开(公告)日：2016-11-30

    申请号：EP14788777

    申请日：2014-04-23

    Applicant: TORAY INDUSTRIES

    Inventor： YAMADA SATOSHI ,  TSUCHIKURA HIROSHI ,  TANAKA NOBUAKI ,  TANAHASHI KAZUHIRO ,  SAKAGUCHI YUKA ,  FUJITA MASAKI ,  KADOWAKI KOJI

    IPC: A61F2/06 ,  A61L27/18 ,  A61L33/06 ,  D04B21/02

    CPC classification number: A61F2/89 ,  A61F2/06 ,  A61F2210/0076 ,  A61F2250/0017 ,  A61F2250/0067 ,  A61L27/18 ,  A61L33/068 ,  D04B21/02 ,  D10B2509/06 ,  C08L79/02

    Abstract: The present invention addresses the problem of providing an artificial blood vessel which is able to retain mechanical properties required for an artificial blood vessel, rarely undergoes the formation of thrombi when grafted into a blood vessel having a small or medium diameter, and has such an excellent cell colonization property that endothelial cells can be colonized rapidly to form an endothelial tissue. Thus, the present invention provides an artificial blood vessel comprising a tubular woven fabric which is composed of at least two types of polyester fibers, i.e., a multifilament yarn A and a multifilament yarn B, and has an inner diameter of 8 mm or less and a layer thickness of 50 µm or more and 250 µm or less, wherein the multifilament yarn A has a single fiber fineness of 1.0 dtex or more and a total fineness of 33 dtex or less, the multifilament yarn B has a single fiber fineness of 0.08 dtex or less and a total fineness of 66 dtex or less, and the multifilament yarn B forms loops on the inner wall surface of the composite tubular woven fabric.

    ENDOVASCULAR TREATMENT ASSISTANCE TOOL
    59.
    发明公开
    ENDOVASCULAR TREATMENT ASSISTANCE TOOL 审中-公开

    公开(公告)号：EP3141191A4

    公开(公告)日：2018-04-04

    申请号：EP15788802

    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 ,  A61L33/00

    CPC classification number: A61F2/013 ,  A61B17/00 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/016 ,  A61F2230/0067 ,  A61F2230/0069 ,  A61F2230/0093 ,  A61L33/0035

    Abstract: An endovascular treatment aiding device whose filter is not caught by a treatment device during retrieval of the endovascular treatment aiding device is disclosed. The treatment aiding device comprises: a flexible shaft; a filter fixed to the shaft, which can be opened and closed in an umbrella-like manner; linear supporting members each of which connects the end portion in the opening-section side of the filter to a part of the shaft such that the filter can be closed by applying an external force to the proximal side; an elastomer member composed of an elastomer in which a penetrating hole (A) is formed, which elastomer member is arranged in the proximal side relative to the opening section of the filter such that the shaft penetrates the penetrating hole (A), wherein the outer diameter of the end face in which the penetrating hole (A) is formed is larger than the outer diameter of the opening-section side of the filter when the filter is closed; and an outer tube in which a penetrating hole (B) is formed, which outer tube is arranged in the proximal side relative to the opening section of the filter such that the shaft penetrates the penetrating hole (B) in a state which allows movement of the shaft in the longitudinal direction; wherein the elastomer member is fixed in the distal side of the outer tube.

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