Bioerodable implant composition
    2.
    发明授权
    Bioerodable implant composition 失效
    可生物侵蚀的植入物组成

    公开(公告)号:US4843112A

    公开(公告)日:1989-06-27

    申请号:US24973

    申请日:1987-03-12

    摘要: An improved bone cement is comprised of a particulate biocompatible calcium phosphate ceramic and particulate resorbable calcium salt dispersed in a cross-linked biodegradable polyester matrix. The polymer/salt-particle composite exhibits good biomechanical strength/modulus characteristics with surgically acceptable cure times. When used for sustained release of biologically active agents in a physiological environment, controlled release of biological agents that are mixed into the composite can be achieved as the cement biodegrades. When used for bone/implant fixation, or as a filler or cement for bone repair, gradual biodegradation of the cement composite permits, under suitable circumstances, eventual replacement of the cement with developing bone tissue.

    摘要翻译: 改进的骨水泥由分散在交联的可生物降解的聚酯基质中的颗粒生物相容性磷酸钙陶瓷和颗粒可再吸收的钙盐组成。 聚合物/盐 - 颗粒复合材料具有良好的生物力学强度/模量特性,具有手术可接受的固化时间。 当用于在生理环境中持续释放生物活性剂时,可以实现混合到复合材料中的生物制剂的受控释放作为水泥生物降解。 当用于骨/植入物固定时,或作为用于骨修复的填充物或水泥时,水泥复合材料的逐渐生物降解允许在合适的情况下最终用发育中的骨组织替换水泥。

    Bioerodable implant composition comprising crosslinked biodegradable
polyesters
    4.
    发明授权
    Bioerodable implant composition comprising crosslinked biodegradable polyesters 失效
    可生物侵蚀的植入物组合物包含交联的可生物降解的聚酯

    公开(公告)号:US5085861A

    公开(公告)日:1992-02-04

    申请号:US337472

    申请日:1989-05-12

    摘要: An improved bone cement is comprised of a particulate biocompatible calcium phosphate ceramic and particulate resorbable calcium salt dispersed in a cross-linked biodegradable polyester matrix. The polymer/salt-particle composite exhibits good biomechanical strength/modulus characteristics with surgically acceptable cure times. When used for sustained release of biologically active agents in a physiological environment, controlled release of biological agents that are mixed into the composite can be achieved as the cement biodegrades. When used for bone/implant fixation, or as a filler or cement for bone repair, gradual biodegradation of the cement composite permits, under suitable circumstances, evantual replacement of the cement with developing bone tissue.

    摘要翻译: 改进的骨水泥由分散在交联的可生物降解的聚酯基质中的颗粒生物相容性磷酸钙陶瓷和颗粒可再吸收的钙盐组成。 聚合物/盐 - 颗粒复合材料具有良好的生物力学强度/模量特性,具有手术可接受的固化时间。 当用于在生理环境中持续释放生物活性剂时,可以实现混合到复合材料中的生物制剂的受控释放作为水泥生物降解。 当用于骨/植入物固定时,或用作骨修复的填料或水泥时,水泥复合材料的逐渐生物降解允许在合适的情况下,用发展中的骨组织有意义地更换骨水泥。