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    • 8. 发明申请
    • DIFFERENTIAL DRUG RELEASE FROM A MEDICAL DEVICE
    • 来自医疗器械的差别药物释放
    • US20080215136A1
    • 2008-09-04
    • US11953969
    • 2007-12-11
    • Daniel J. GregorichMike Meyer
    • Daniel J. GregorichMike Meyer
    • A61F2/82A61F2/06
    • A61L31/148A61L31/10A61L31/16A61L2300/45A61L2300/602
    • The invention relates to a medical device, such as an intravascular stent, useful for delivering two or more therapeutic agents to a body tissue of a patient at different rates, and methods for making and using such medical device. The medical device includes a substrate and/or coating having a plurality of pores, dispersed in said pores are a plurality of a first and second therapeutic agents, wherein said first therapeutic agent is bonded to one or more molecule(s) of a first material and the second therapeutic agent bonded to one or more molecule(s) of a second material, such that when the medical device, is in use (e.g., implanted into a body lumen such as a blood vessel), bonded first therapeutic agent is released from the medical device at a rate that is slower than the rate at which the bonded second therapeutic agent is released from the medical device.
    • 本发明涉及可用于将两种或更多种治疗剂以不同速率递送到患者的身体组织的医疗装置,例如血管内支架,以及制造和使用该医疗装置的方法。 医疗装置包括具有多个孔的基底和/或涂层,分散在所述孔中是多个第一和第二治疗剂,其中所述第一治疗剂与第一物质的一个或多个分子结合 和第二治疗剂,其结合到第二材料的一个或多个分子,使得当使用医疗器械(例如,植入体腔诸如血管)时,释放接合的第一治疗剂 以比从粘合的第二治疗剂从医疗装置释放的速度慢的速度从医疗装置开始。