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    • 3. 发明申请
    • SLOW RELEASE MICROSPHERES
    • 缓慢释放微球
    • WO2001010414A1
    • 2001-02-15
    • PCT/US2000021038
    • 2000-08-02
    • OAKWOOD LABORATORIES L.L.C.THANOO, Bagavathikanun, ChithambaraMURTAGH, James
    • OAKWOOD LABORATORIES L.L.C.
    • A61K9/14
    • A61K9/1647A61K38/09
    • A continuous process for producing microspheres containing an active agent wherein the microspheres have an average cross sectional porosity of less than 5 % of the total cross sectional area. The microspheres are effective for releasing active agent at a constant and highly uniform rate into a surrounding physiological medium. The microspheres comprise a homopolymer of lactic acid or a copolymer of glycolic and lactic acids. An active agent is homogeneously distributed within a matrix of the homopolymer or copolymer wherein an average number and size of the active agent in a particular unit area is substantially the same as a second average number and size of the active agent in a different unit area of the microsphere.
    • 一种用于生产含有活性剂的微球的连续方法,其中微球的平均横截面孔隙率小于总横截面积的5%。 微球对于将活性剂以恒定且高度均匀的速率释放到周围的生理介质中是有效的。 微球包含乳酸的均聚物或乙醇酸和乳酸的共聚物。 活性剂均匀地分布在均聚物或共聚物的基质内,其中特定单位面积中的活性剂的平均数量和大小基本上与活性剂在不同单位面积中的第二平均数和大小相同 微球。