Three-dimensional bioresorbable scaffolds for tissue engineering applications
    4.
    发明授权
    Three-dimensional bioresorbable scaffolds for tissue engineering applications 有权
    用于组织工程应用的三维生物可吸收支架

    公开(公告)号:US07968026B1

    公开(公告)日:2011-06-28

    申请号:US10828477

    申请日:2004-04-20

    摘要: The invention relates to the use of Fused Deposition Modeling to construct three-dimensional (3D) bioresorbable scaffolds from bioresorbable polymers such as polycaprolactone (PCL), or from composites of bioresorbable polymers and ceramics, such as polycaprolactone/hydroxyapatite (PCL/HA). Incorporation of a bioresorbable ceramic to produce a hybrid/composite material support provides the desired degradation and resorption kinetics. Such a composite material improves the biocompatibility and hard tissue integration and allows for increased initial flash spread of serum proteins. The basic resorption products of the composite also avoids the formation of an unfavorable environment for hard tissue cells due to a decreased pH. The scaffolds have applications in tissue engineering, e.g., in tissue engineering bone and cartilage.

    摘要翻译: 本发明涉及使用熔融沉积建模从生物可吸收聚合物如聚己内酯(PCL)或由生物可再吸收聚合物和陶瓷如聚己内酯/羟基磷灰石(PCL / HA)的复合材料构成三维(3D)生物可吸收支架。 掺入生物可吸收陶瓷以产生混合/复合材料载体提供所需的降解和再吸收动力学。 这种复合材料改善了生物相容性和硬组织整合,并且允许增加血清蛋白的初始快速扩散。 复合材料的基本吸收产物也避免了由于pH降低而对硬组织细胞形成不利环境。 支架可用于组织工程,例如在组织工程骨和软骨中。

    Methods for fabricating a filament for use in tissue engineering
    7.
    发明授权
    Methods for fabricating a filament for use in tissue engineering 有权
    制造用于组织工程的细丝的方法

    公开(公告)号:US06730252B1

    公开(公告)日:2004-05-04

    申请号:US09957407

    申请日:2001-09-20

    IPC分类号: D01D5088

    摘要: The invention relates to the use of Fused Deposition Modeling to construct three-dimensional (3D) bioresorbable scaffolds from bioresorbable polymers such as polycaprolactone (PCL), or from composites of bioresorbable polymers and ceramics, such as polycaprolactone/hydroxyapatite (PCL/HA). Incorporation of a bioresorbable ceramic to produce a hybrid/composite material support provides the desired degradation and resorption kinetics. Such a composite material improves the biocompatibility and hard tissue integration and allows for increased initial flash spread of serum proteins. The basic resorption products of the composite also avoids the formation of an unfavorable environment for hard tissue cells due to a decreased pH. The scaffolds have applications in tissue engineering, e.g., in tissue engineering bone and cartilage.

    摘要翻译: 本发明涉及使用熔融沉积建模从生物可吸收聚合物如聚己内酯(PCL)或由生物可再吸收聚合物和陶瓷如聚己内酯/羟基磷灰石(PCL / HA)的复合材料构成三维(3D)生物可吸收支架。 掺入生物可吸收陶瓷以产生混合/复合材料载体提供所需的降解和再吸收动力学。 这种复合材料改善了生物相容性和硬组织整合,并且允许增加血清蛋白的初始快速扩散。 复合材料的基本吸收产物也避免了由于pH降低而对硬组织细胞形成不利环境。 支架可用于组织工程,例如在组织工程骨和软骨中。