COAXIAL ELECTROSPUN FIBERS AND STRUCTURES AND METHODS OF FORMING THE SAME
    44.
    发明申请
    COAXIAL ELECTROSPUN FIBERS AND STRUCTURES AND METHODS OF FORMING THE SAME 审中-公开
    同轴电纺纤维及其结构及其形成方法

    公开(公告)号:US20100055154A1

    公开(公告)日:2010-03-04

    申请号:US12373737

    申请日:2007-07-18

    IPC分类号: A61K9/70 B29C47/02 A61P43/00

    摘要: Nanofibers and microfibers having a core and a polymer shell surrounding the core are provided. The shell includes a plurality of channels that extend from an outer shell surface to the core, and one or more agents, such as pharmacological materials, proteins, viruses, plasmid DNA, bacterial cells, drug-loaded nanoparticles, are encapsulated within the core. The one or more agents discharge from the core through the channels at a controlled rate. The channels are formed by porogen material within the polymer shell.

    摘要翻译: 提供具有核心和包围核心的聚合物壳的纳米纤维和微纤维。 壳体包括从外壳表面延伸到核心的多个通道,并且将一种或多种试剂(例如药理学材料,蛋白质,病毒,质粒DNA,细菌细胞,载药纳米颗粒)包封在核心内。 一个或多个试剂以受控的速率通过通道从核心排出。 通道由聚合物壳内的致孔剂材料形成。

    Biodegradable triblock copolymers, synthesis methods therefore, and hydrogels and biomaterials made there from
    45.
    发明授权
    Biodegradable triblock copolymers, synthesis methods therefore, and hydrogels and biomaterials made there from 有权
    因此,可生物降解的三嵌段共聚物,合成方法,以及从中制备的水凝胶和生物材料

    公开(公告)号:US07297348B2

    公开(公告)日:2007-11-20

    申请号:US10624136

    申请日:2003-07-18

    IPC分类号: A61K9/14

    摘要: A drug delivery system that includes a hydrogel formed from cyclodextrin and an amphiphilic copolymer that includes an A polymer block comprising a poly(alkylene oxide) and a B polymer block comprising a poly(hydroxyalkanoate), and a therapeutically effective amount of at least one therapeutic agent intimately contained within the hydrogel. In one preferred embodiment of the invention, the A polymer block is poly(ethylene oxide) (PEO) and the B polymer block is poly[(R)-3-hydroxybutyrate] (PHB), and the copolymer is the triblock ABA copolymer PEO-PHB-PEO. A method of synthesizing the amphiphilic triblock copolymer is also provided.

    摘要翻译: 一种药物递送系统,其包括由环糊精形成的水凝胶和包含聚合物嵌段的两亲性共聚物,所述聚合物嵌段包含聚(环氧烷)和包含聚(羟基链烷酸酯)的B聚合物嵌段,以及治疗有效量的至少一种治疗 代谢物密切包含在水凝胶内。 在本发明的一个优选实施方案中,A聚合物嵌段是聚(环氧乙烷)(PEO),B聚合物嵌段是聚[(R)-3-羟基丁酸酯](PHB),共聚物是三嵌段ABA共聚物PEO -PHB-PEO。 还提供了合成两亲性三嵌段共聚物的方法。

    Biodegradable polymers, compositions, articles and methods for making and using the same
    48.
    发明授权
    Biodegradable polymers, compositions, articles and methods for making and using the same 失效
    可生物降解的聚合物,组合物,制品及其制备和使用方法

    公开(公告)号:US06238687B1

    公开(公告)日:2001-05-29

    申请号:US09286713

    申请日:1999-04-05

    IPC分类号: A61F202

    摘要: Biodegradable polymer compositions that degrade in vivo into non-toxic residues are described. In part, the present invention is directed to such polymers containing phosphorus and desaminotyrosyl L-tyrosine linkages in the polymer backbone. Processes for preparing such polymers, compositions containing such polymers and biologically active substances, articles useful for implantation or injection into the body fabricated from the compositions, and methods for controllably releasing biologically active substances using the polymers, are also described.

    摘要翻译: 描述了将体内降解为无毒残留物的生物可降解聚合物组合物。 部分地,本发明涉及在聚合物主链中含有磷和脱氨基酪氨酰L-酪氨酸键的这种聚合物。 还描述了制备这种聚合物的方法,含有这种聚合物和生物活性物质的组合物,用于植入或注射到由组合物制造的身体中的制品,以及使用该聚合物可控地释放生物活性物质的方法。