NOVEL RADIOPAQUE MEDICAL HYDROGELS AND PRECURSORS THEREOF

    公开(公告)号:US20240189485A1

    公开(公告)日:2024-06-13

    申请号:US18516271

    申请日:2023-11-21

    CPC classification number: A61L27/50 A61L27/16 A61L2300/202

    Abstract: The disclosure pertains to radiopaque, unsaturated multi-arm polymers that comprise a plurality of hydrophilic polymer arms having end moieties comprising one or more radiopaque halogen groups and one or more unsaturated groups, the end moieties linked to the hydrophilic polymer arms though an ester or an amide linkage. In some embodiments, the disclosure pertains to systems for forming hydrogels, which systems comprise (a) a polyamino compound and (b) a radiopaque, unsaturated multi-arm polymer that comprises a plurality of hydrophilic polymer arms having end moieties comprising one or more radiopaque halogen groups and one or more unsaturated groups, the end moieties linked to the hydrophilic polymer arms though an ester or an amide linkage, wherein the one or more unsaturated groups are reactive with the amino groups of the polyamino compound. Other embodiments pertain to methods of treatment using such systems and to hydrogels formed from such systems.

    SYNTHETIC HEART VALVES COMPOSED OF ZWITTERIONIC POLYMERS
    35.
    发明申请
    SYNTHETIC HEART VALVES COMPOSED OF ZWITTERIONIC POLYMERS 审中-公开
    由ZWITTERICIC聚合物组成的合成心脏瓣膜

    公开(公告)号:US20160296322A1

    公开(公告)日:2016-10-13

    申请号:US15082293

    申请日:2016-03-28

    Abstract: A prosthetic heart valve includes a plurality of synthetic polymeric leaflets. Each leaflet has a base polymer and a polymer coating at least partially disposed over the base polymer, wherein the polymer coating includes polymerized units of a monomer comprising a zwitterionic group when the polymer coating is exposed to an aqueous environment at a pH of about 7.4

    Abstract translation: 假体心脏瓣膜包括多个合成的聚合单张。 每个小叶具有至少部分地设置在基础聚合物上的基础聚合物和聚合物涂层,其中当聚合物涂层暴露于约7.4的pH的水性环境时,聚合物涂层包括包含两性离子基团的单体的聚合单元

Patent Agency Ranking