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    • 7. 发明申请
    • Bioactive, resorbable scaffolds for tissue engineering
    • 生物活性,可吸收的组织工程支架
    • US20050118236A1
    • 2005-06-02
    • US10721028
    • 2003-11-24
    • Qing-Qing QiuCharles CohenPaul Ducheyne
    • Qing-Qing QiuCharles CohenPaul Ducheyne
    • A61B20060101A61K9/70A61K45/00A61L27/10A61L27/34A61L27/44A61L27/56
    • A61L27/446A61L27/10A61L27/34A61L27/56Y10T442/2525C08L67/04
    • Flexible, bioactive glass meshes and scaffolds made therefrom are provided. The meshes comprise interwoven bioactive glass fibers that can be coated with resorbable polymers. Meshes can also be woven from glass fibers and resorbable polymers. Scaffolds can be constructed by a plurality of meshes, which can have varying porosities to create porosity gradients in the scaffold. Methods of making scaffolds are provided which can comprise pulling bioactive glass fibers, winding the fibers, forming the fibers into bundles, coating the fibers with a resorbable polymer, and creating a biaxial weave with the bundles. Soft tissue engineering methods are also provided for creating scaffolds for incubating cells such as fibroblasts and chondroblasts. Meshes and scaffolds are suitable for tissue engineering, such as bone tissue engineering and cartilage tissue engineering.
    • 提供由其制成的柔性,生物活性玻璃网和支架。 网格包括交织的生物活性玻璃纤维,其可以涂覆有可再吸收的聚合物。 网格也可以由玻璃纤维和可再吸收的聚合物编织。 支架可以由多个网孔构成,其可以具有不同的孔隙度以在支架中产生孔隙度梯度。 提供制备支架的方法,其可以包括拉动生物活性玻璃纤维,缠绕纤维,将纤维形成束,用可再吸收的聚合物涂覆纤维,以及用束形成双轴织造。 还提供软组织工程方法用于产生用于孵育细胞如纤维母细胞和软骨细胞的支架。 网格和支架适用于组织工程,如骨组织工程和软骨组织工程。
    • 9. 发明申请
    • BIOCOMPATIBLE POLYMER CERAMIC COMPOSITE MATRICES
    • 生物易燃聚合物陶瓷复合材料
    • US20090324695A1
    • 2009-12-31
    • US12476009
    • 2009-06-01
    • Paul DucheyneDavid I. Devore
    • Paul DucheyneDavid I. Devore
    • A61K9/00A61P17/02
    • A61K9/1641A61K9/0014
    • Biocompatible composites of flexible polymers/copolymers films and dispersed solid silica-based ceramic microparticles are provided. The composites uniquely combine material and drug delivery properties that are essential for wound dressings and drug delivery applications. The flexible copolymer films are preferably tyrosine-based polycarbonates, and the ceramic microparticles are biodegradable silica-based glass particles that are preferably processed by a sol-gel methodology. The copolymers and the ceramic microparticles independently can contain therapeutic agents, are independently capable of binding these agents, and can independently release such agents. It is sufficient that either the polymer or the ceramic contains therapeutic agents, although both may contain them.
    • 提供柔性聚合物/共聚物膜和分散的固体二氧化硅基陶瓷微粒的生物相容性复合材料。 复合材料独特地结合材料和药物递送性质,这对于伤口敷料和药物递送应用至关重要。 柔性共聚物膜优选为酪氨酸基聚碳酸酯,并且陶瓷微粒为可生物降解的二氧化硅基玻璃颗粒,其优选通过溶胶 - 凝胶法加工。 共聚物和陶瓷微粒独立地可以含有治疗剂,独立地能够结合这些试剂,并且可以独立地释放这些试剂。 聚合物或陶瓷都含有治疗剂就足够了,尽管两者都可能含有它们。