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    • 5. 发明授权
    • Chemo-mechanical expansion delivery system
    • 化学机械膨胀输送系统
    • US5876741A
    • 1999-03-02
    • US892920
    • 1997-07-15
    • Eyal S. Ron
    • Eyal S. Ron
    • A61K8/02A61K8/04A61K9/00A61K9/52A61L27/52A61L27/54A61L31/14A61L31/16A61Q13/00A61Q19/00C08B15/00C08B31/00A61F2/02A61K9/22
    • C08B31/006A61K9/0004C08B15/005A61K2800/88C12N2533/30C12N2533/70
    • System for delivery of a biologically active substance into an environment. The container is comprised of a single member or two mated members and defines first and second compartments. The container includes pores in at least a portion of the container defining the first compartment. The first compartment contains a polymer gel network which undergoes a volume expansion in response to an environmental condition which varies in the biological environment. The second compartment contains an effective amount of a biologically active compound and may include at least one passageway communicating with the biological environment. Drug delivery is initiated and continues only when the appropriate environmental condition or trigger is met, whereupon volume expansion of the polymer gel network causes the biologically active compound to be discharged into the biological environment.
    • 将生物活性物质输送到环境中的系统。 容器由单个构件或两个配合构件组成,并且限定第一和第二隔室。 容器包括限定第一隔室的容器的至少一部分中的孔。 第一隔室包含聚合物凝胶网络,其响应于在生物环境中变化的环境条件而经历体积膨胀。 第二隔室包含有效量的生物活性化合物,并且可以包括与生物环境连通的至少一个通道。 仅当适当的环境条件或触发条件被满足时才启动并继续给药,因此聚合物凝胶网络的体积膨胀导致生物活性化合物被排放到生物环境中。