RADIOPAQUE CROSSLINKED ACRYLAMIDE COPOLYMERS AND USES THEREOF

    公开(公告)号:US20240293583A1

    公开(公告)日:2024-09-05

    申请号:US18591471

    申请日:2024-02-29

    CPC classification number: A61K49/0438 A61K45/06 A61K49/0419 A61K49/0457

    Abstract: The present disclosure provides radiopaque crosslinked acrylamide copolymers that comprise (a) a monofunctional acrylamide monomer containing one or more radiopaque atoms and/or a multifunctional acrylamide monomer containing one or more radiopaque atoms and (b) a monofunctional acrylamide monomer that does not contain one or more radiopaque atoms and/or a multifunctional acrylamide monomer that does not contain one or more radiopaque atoms, wherein the copolymer comprises at least one multifunctional acrylamide monomer. The present disclosure also provides radiopaque particulate compositions that comprise such radiopaque crosslinked acrylamide copolymers and medical procedures that comprise administering to a subject such radiopaque particulate compositions. The present disclosure further provides methods of making such radiopaque crosslinked acrylamide copolymers.

    RADIOPAQUE POLYSACCHARIDE HYDROGELS AND METHODS OF MAKING THE SAME

    公开(公告)号:US20240335568A1

    公开(公告)日:2024-10-10

    申请号:US18627837

    申请日:2024-04-05

    CPC classification number: A61K49/0438 A61K49/0457 A61K49/0495

    Abstract: In some aspects, the present disclosure pertains to radiopaque hydrogel compositions that comprise a radiopaque polysaccharide that comprises a plurality of radiopaque moieties that are covalently linked to a carboxylic-acid-containing polysaccharide along a backbone of the carboxylic-acid-containing polysaccharide. In some aspects, the present disclosure pertains to radiopaque hydrogel compositions that comprise a carboxylate-anion-containing polysaccharide that is ionically crosslinked by multivalent cations. In other aspects, the present disclosure pertains to kits that contain such radiopaque hydrogel compositions, to methods of treatment that comprise administering such radiopaque hydrogel compositions to patients, and to methods of making such radiopaque hydrogel compositions.

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