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    • 84. 发明授权
    • 작용제의 개량된 투약기
    • 活性剂分配器
    • KR1019900007500B1
    • 1990-10-11
    • KR1019840002321
    • 1984-04-30
    • 알자 코포레이션
    • 알레잔드로자파로니패트릭에스.엘.웡
    • A61M31/00
    • A61K9/7023A61F2013/0296A61K9/2086A61M31/002
    • A dispenser comprises a matrix material containing an active agent at concentration greater than the saturation conc. of agent in the matrix, and a depleted zone of matrix containing the agent at no more than saturation concentration, the zone lying between the first matrix and a surface through which the agent is to be released. The interface between first and second matrixes is at a nonuniform distance from the releasing surface. The interface is in a plane oblique to the surface, or the first matrix is between two zones for release through two surface. The zone may be formed as a body with at least one convergent inward recess, with an agent-impermeable barrier on the dispenser exterior except for the releasing surface. The two marixes are of the same material.
    • 分配器包括含有浓度大于饱和浓度的活性剂的基质材料。 的基质中的试剂,以及含有不超过饱和浓度的试剂的基质的贫化区,该区位于第一基质和待释放试剂的表面之间。 第一和第二矩阵之间的界面与释放表面处于不均匀的距离。 界面处于与表面倾斜的平面中,或第一个矩阵位于两个区域之间,以通过两个表面释放。 该区域可以形成为具有至少一个会聚向内凹部的主体,除了脱模表面之外,在分配器外部具有不透明的阻挡层。 两个混凝土是相同的材料。