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    • 8. 发明授权
    • Device coated with glycogen particles comprising nucleic acid complexes
    • 涂覆有包含核酸复合物的糖原颗粒的装置
    • US08936811B2
    • 2015-01-20
    • US12437287
    • 2009-05-07
    • Joram SlagerJoseph Schmidt McGonigle
    • Joram SlagerJoseph Schmidt McGonigle
    • A61K9/14A61K31/7052A61P43/00
    • A61K9/1641A61K9/0024A61K9/1623A61K9/1652A61K9/1658A61K47/543A61K47/58A61K47/59A61K47/593A61K47/60A61K47/61A61K47/6921A61K47/6923A61K47/6957A61K48/00C12N15/87
    • Embodiments of the invention include particles with nucleic acid complexes, medical devices including the same and related methods. In an embodiment, the invention can include a method of making a medical device. The method can include contacting nucleic acids with cationic carrier agents to form nucleic acid complexes, adsorbing the nucleic acid complexes to porous particles to form nucleic acid complex containing particles, mixing the nucleic acid complex containing particles with a polymer solution to form a coating mixture, and applying the coating mixture to a substrate. In an embodiment, the method can include contacting nucleic acids with cationic carrier agents to form nucleic acid complexes, combining the nucleic acid complexes with a material to form nucleic acid complex containing particles in situ, mixing the nucleic acid complex particles with a polymer solution to form a coating mixture, and applying the coating mixture to a substrate. In an embodiment, the invention can include an implantable medical device including a substrate, an elution control matrix disposed on the substrate; a plurality of particles disposed within the elution control matrix, and a plurality of nucleic acid complexes disposed within the particles, the nucleic acid complexes comprising a nucleic acid and a cationic carrier agent. Other embodiments are included herein.
    • 本发明的实施方案包括具有核酸复合物的颗粒,包括相同方法的医疗装置。 在一个实施例中,本发明可以包括制造医疗装置的方法。 该方法可以包括使核酸与阳离子载体接触以形成核酸复合物,将核酸复合物吸附到多孔颗粒上以形成含有核酸复合物的颗粒,将含有核酸复合物的颗粒与聚合物溶液混合以形成涂层混合物, 并将涂覆混合物施加到基底上。 在一个实施方案中,该方法可以包括使核酸与阳离子载体试剂接触以形成核酸复合物,将核酸复合物与材料组合以形成原位含有颗粒的核酸复合物,将核酸复合物颗粒与聚合物溶液混合 形成涂料混合物,并将涂料混合物施加到基材上。 在一个实施例中,本发明可以包括可植入医疗装置,其包括基底,设置在基底上的洗脱控制矩阵; 布置在洗脱控制基质内的多个颗粒,以及设置在颗粒内的多个核酸复合物,所述核酸复合物包含核酸和阳离子载体试剂。 本文还包括其它实施例。