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    Hydrophilic copolymer and medical device
    1.
    发明授权
    Hydrophilic copolymer and medical device 有权

    公开(公告)号：US11377512B2

    公开(公告)日：2022-07-05

    申请号：US16282929

    申请日：2019-02-22

    申请人： TERUMO KABUSHIKI KAISHA

    发明人： Masanori Kuramoto ,  Takao Anzai

    IPC分类号： C08F220/58 ,  A61L31/10 ,  A61L29/08 ,  C08F220/38 ,  C10M107/46 ,  C10M107/48 ,  C10N40/00

    摘要： A hydrophilic copolymer that can form a surface lubricious layer exhibiting superior lubricating property and durability (lubrication retaining property), is provided. A hydrophilic copolymer having a good solvent solubility is provided. A hydrophilic copolymer is provided containing: structural units derived from a polymerizable monomer (A) having a sulfobetaine structure; structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SO3H), a sulfuric acid group (—OSO3H), a sulfurous acid group (—OSO2H), and groups of salts thereof; and structural units derived from a polymerizable monomer (C) having a photoreactive group.

    Medical instrument
    2.
    发明授权
    Medical instrument 有权

    公开(公告)号：US11872326B2

    公开(公告)日：2024-01-16

    申请号：US16996017

    申请日：2020-08-18

    申请人： TERUMO KABUSHIKI KAISHA

    发明人： Masanori Kuramoto ,  Narumi Yokote

    IPC分类号： A61L29/14 ,  C08F220/38 ,  A61L29/04 ,  C09J133/14

    CPC分类号： A61L29/14 ,  A61L29/041 ,  A61L29/043 ,  A61L29/044 ,  C08F220/387 ,  C09J133/14 ,  A61L2400/10 ,  A61L2420/08

    摘要： Disclosed is a medical device exhibiting superior lubricating property and durability (lubrication retaining property), the medical device comprising a substrate layer, an adhesive layer formed on at least a portion of the substrate layer, comprising a hydrophilic copolymer comprising a structural unit derived from a polymerizable monomer (A) having a sulfobetaine structure, a structural unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group, sulfuric acid group, sulfurous acid group, and salts thereof, and a structural unit derived from a polymerizable monomer (C) having a photoreactive group, and a surface lubricious layer formed on at least a portion of the adhesive layer, comprising a hydrophilic polymer dissolvable in a solvent capable of dissolving or swelling the hydrophilic copolymer. Also disclosed are methods for producing medical devices exhibiting superior lubricating property and durability (lubrication retaining property).