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    • 3. 发明授权
    • Photocrosslinking of diethyl fumarate/poly(propylene fumarate) biomaterials
    • 富马酸二乙酯/聚(富马酸丙烯酯)生物材料的光交联
    • US06753358B2
    • 2004-06-22
    • US10185473
    • 2002-06-28
    • John P. FisherAntonios G. Mikos
    • John P. FisherAntonios G. Mikos
    • C08F250
    • C08F22/00A61L27/18B33Y80/00C08L67/06
    • A polymer network formed by crosslinking poly(propylene fumarate) with a fumarate derivative. The fumarate derivative is one in which the PPF is soluble, is preferably an alkyl fumarate, and is more preferably selected from the group consisting of diethyl fumarate, dimethyl fumarate, methyl ethyl fumarate, diisopropyl fumarate, and dibutyl fumarate. The network can be formed by photo-crosslinking and can be porous. In some embodiments, the poly(propylene fumarate) and the fumarate derivative are each present in an amount effective to produce a polymeric network useful for in vivo applications. The network can be formed from an injectable, in situ crosslinkable composite formulation, or can be prefabricated from a crosslinkable composite formulation such as stereolithography, rapid prototyping, injection molding, and extrusion molding.
    • 通过将富马酸(富马酸)与富马酸衍生物交联而形成的聚合物网络。 富马酸盐衍生物是其中PPF是可溶的,优选富马酸烷基酯,更优选选自富马酸二乙酯,富马酸二甲酯,富马酸甲酯,富马酸二异丙酯和富马酸二丁酯。 网络可以通过光交联形成,并且可以是多孔的。 在一些实施方案中,聚(丙烯富马酸酯)和富马酸酯衍生物各自以有效产生可用于体内应用的聚合物网络的量存在。 网络可以由可注射的原位可交联的复合制剂形成,或者可以从可交联的复合制剂例如立体光刻,快速成型,注射成型和挤出成型制成。
    • 8. 发明授权
    • Biodegradable bone templates
    • 可生物降解骨模板
    • US5522895A
    • 1996-06-04
    • US96780
    • 1993-07-23
    • Antonios G. Mikos
    • Antonios G. Mikos
    • A61F2/00A61F2/02A61F2/28A61F2/30A61L27/38A61L27/48A61L27/56A61L27/58
    • A61L27/3821A61F2/28A61L27/3847A61L27/48A61L27/56A61L27/58A61F2/30965A61F2002/30062A61F2002/30199A61F2210/0004A61F2230/0063
    • A biodegradable, bioresorbable, three-dimensional template for repair and replacement of diseased or injured bone which provides mechanical strength to bone while also providing a guide for growth of bone tissue. Preferably, the template is formed of biodegradable materials, for example, poly(L-lactic acid), poly(D, L-lactic acid), poly (D, L-lactic-co-glycolic acid), poly (glycolic acid), poly (.epsilon.-caprolactone), polyortho esters, and polyanhydrides, and has the capacity of being rendered porous, either in vitro or in vivo. A pore-forming component, which may or may not be a polymeric material, is mixed within a continuous matrix formed of a biodegradable material, the pore-forming component having a rate of degradation which exceeds that of the matrix. Differential dissolution or biodegradation provides porosity to the template.
    • 一种可生物降解的生物可吸收的三维模板,用于修复和更换患骨或受伤的骨骼,为骨骼提供机械强度,同时也为骨组织生长提供指导。 优选地,模板由生物可降解材料形成,例如聚(L-乳酸),聚(D,L-乳酸),聚(D,L-乳酸 - 共 - 乙醇酸),聚(乙醇酸) ,聚(ε-己内酯),聚原酸酯和聚酐,并且具有在体外或体内被赋予多孔性的能力。 可以是或可以不是聚合物材料的成孔组分在由可生物降解材料形成的连续基质中混合,成孔组分的降解速率超过基质的成分速率。 差示溶解或生物降解为模板提供孔隙度。
    • 10. 发明授权
    • Porous biodegradable polymeric materials for cell transplantation
    • 用于细胞移植的多孔可生物降解聚合物材料
    • US07462471B2
    • 2008-12-09
    • US10775768
    • 2004-02-10
    • Antonios G. MikosJoseph P. VacantiRobert S. LangerLinda G. GriffithGeorgios Sarakinos
    • Antonios G. MikosJoseph P. VacantiRobert S. LangerLinda G. GriffithGeorgios Sarakinos
    • C12N11/08C12N11/04C12N5/00C12N5/06C12N5/08A61F2/00
    • G02B27/0031A61L27/18A61L27/56A61L2400/06G03F7/40H01L21/0273H01L21/32139C08L67/04
    • Polymeric materials are used to make a pliable, non-toxic, injectable porous template for vascular ingrowth. The pore size, usually between approximately 100 and 300 microns, allows vascular and connective tissue ingrowth throughout approximately 10 to 90% of the matrix following implantation, and the injection of cells uniformly throughout the implanted matrix without damage to the cells or patient. The introduced cells attach to the connective tissue within the matrix and are fed by the blood vessels. The preferred material for forming the matrix or support structure is a biocompatible synthetic polymer which degrades in a controlled manner by hydrolysis into harmless metabolites, for example, polyglycolic acid, polylactic acid, polyorthoester, polyanhydride, or copolymers thereof. The rate of tissue ingrowth increases as the porosity and/or the pore size of the implanted devices increases. The time required for the tissue to fill the device depends on the polymer crystallinity and is less for amorphous polymers versus semicrystalline polymers. The vascularity of the advancing tissue is consistent with time and independent of the biomaterial composition and morphology.
    • 聚合材料用于制造一种柔韧,无毒,可注射的多孔模板,用于血管向内生长。 通常在约100和300微米之间的孔径允许血管和结缔组织在植入后约10至90%的基质向内生长,并且在整个植入的基质中均匀注射细胞而不损伤细胞或患者。 引入的细胞附着到基质内的结缔组织,并由血管进食。 用于形成基质或支撑结构的优选材料是生物相容的合成聚合物,其通过水解以受控的方式降解成无害的代谢物,例如聚乙醇酸,聚乳酸,聚原酸酯,聚酐或其共聚物。 随着植入装置的孔隙率和/或孔径增加,组织向内生长的速率增加。 组织填充装置所需的时间取决于聚合物的结晶度,对于无定形聚合物与半结晶聚合物相比较少。 前进组织的血管分布与时间一致,与生物材料组成和形态无关。