Poly(p-dioxanone) polymers having improved radiation resistance
    4.
    发明授权
    Poly(p-dioxanone) polymers having improved radiation resistance 失效
    具有改善的耐辐射性的聚(对 - 二恶烷酮)聚合物

    公开(公告)号:US4649921A

    公开(公告)日:1987-03-17

    申请号:US744833

    申请日:1985-06-14

    摘要: A sterile surgical suture comprising an absorbable, radiation sterilizable, normally solid polymer comprising a copolyester that comprises repeating divalent units of the formulas:(A) --O--CO--CH.sub.2 --O--CH.sub.2 CH.sub.2 --, and(B) --G--, and(C) --O--CO--CHR--O--.sub.m Ph--O--CHR--CO--O--wherein G represents the residue after removal of the hydroxyl groups of a dihydric alcohol, wherein Ph represents 1,2-, 1,3-, or 1,4-phenylene or alkyl- or alkoxy-substituted phenylene, wherein m represents a number having a value of 0 or 1, wherein R represents hydrogen or lower alkyl, and wherein the divalent units (A), (B), and (C) are bonded to each other through ester groups contained in said units.

    摘要翻译: 一种无菌外科缝合线,其包含可吸收的,可辐射灭菌的通常为固体的聚合物,其包含共聚酯,所述共聚酯包含重复下式的二价单元:(A)-O-CO-CH 2 -O-CH 2 CH 2 - 和(B)-G-,和 (C)-O-CO-CHR-O-mPh-O-CHR-CO-O-其中G表示除去二元醇的羟基后的残基,其中Ph表示1,2-, 或1,4-亚苯基或烷基或烷氧基取代的亚苯基,其中m表示数值为0或1的数,其中R表示氢或低级烷基,其中二价单元(A),(B), 和(C)通过所述单元中所含的酯基彼此键合。

    Synthetic absorbable surgical devices of poly(alkylene oxalates)
    7.
    发明授权
    Synthetic absorbable surgical devices of poly(alkylene oxalates) 失效
    聚(亚烷基草酸盐)的合成可吸收外科手术装置

    公开(公告)号:US4205399A

    公开(公告)日:1980-06-03

    申请号:US910042

    申请日:1978-05-26

    摘要: Synthetic filaments composed of homopolymers and copolymers of poly(alkylene oxalates) are absorbable in animal tissue with minimal adverse tissue reaction. Polymers prepared by reacting a dialkyl oxalate with an alkylene diol are melt spun and drawn to obtain oriented fibers having good tensile properties and a high level of flexibility and softness. The filaments are particularly useful in the preparation of surgical prosthesis comprising woven or knitted fabrics and meshes. Other absorbable surgical devices including films and molded items may also be prepared from the disclosed polymer.

    摘要翻译: 由聚(亚烷基草酸酯)的均聚物和共聚物组成的合成长丝在动物组织中是可吸收的,具有最小的不利组织反应。 通过使草酸二烷基酯与亚烷基二醇反应制备的聚合物被熔融纺丝并拉伸,得到具有良好拉伸性能和高柔性和柔软度的取向纤维。 长丝在制备包含织造或针织织物和网眼的手术假体中特别有用。 其它可吸收外科装置,包括膜和模制品也可以由所公开的聚合物制备。

    Absorbable pharmaceutical compositions based on isomorphic copolyoxalates
    8.
    发明授权
    Absorbable pharmaceutical compositions based on isomorphic copolyoxalates 失效
    基于同型共聚合物的可吸收药物组合物

    公开(公告)号:US4130639A

    公开(公告)日:1978-12-19

    申请号:US837060

    申请日:1977-09-28

    CPC分类号: A61K9/146 A61K9/204 C08G63/18

    摘要: Absorbable copolyoxalate polymers having isomorphic sequences are formulated with drugs and introduced into the body to provide a slow, sustained release of the drug over an extended period of time in accordance with the rate of absorption of the polymer. The copolyoxalate polymers are derived from mixtures of cyclic and linear diols, each having the same number of carbon atoms. The polymers are biodegradable in animal tissue and absorb with minimal adverse tissue reaction.

    摘要翻译: 具有同构序列的可吸收的共聚草酸酯聚合物与药物配制并引入体内以根据聚合物的吸收速率在延长的时间段内提供缓慢的持续释放药物。 共聚草酸酯聚合物衍生自环状和线性二醇的混合物,每个二醇具有相同数目的碳原子。 聚合物在动物组织中是可生物降解的并以最小的不利组织反应进行吸收。