Osmotically driven delivery devices with pulsatile effect
    11.
    发明授权
    Osmotically driven delivery devices with pulsatile effect 失效
    具有脉动作用的渗透式输送装置

    公开(公告)号:US5209746A

    公开(公告)日:1993-05-11

    申请号:US837183

    申请日:1992-02-18

    IPC分类号: A61K9/00 A61K9/22 A61M5/145

    摘要: Osmotically driven delivery capsules which include a beneficial agent and a water absorptive osmotic engine in separate compartments separated by a movable partition are designed to deliver the beneficial agent in a pulsatile manner through an orifice. The pulsatile delivery is achieved by a series of stops along the inner wall of the capsule which obstruct the movement of the partition but which are overcome in succession as the osmotic pressure rises above a threshold level. The number of stops and their placement longitudinally along the length of the capsule establish the number and frequency of the pulses, and the configuration of the partition controls the pulse intensity.

    摘要翻译: 包括有益剂和吸水渗透引擎的渗透驱动输送胶囊被设计成以可动的方式通过孔传送有益剂。 通过沿着胶囊内壁的一系列止动件来实现脉动输送,其阻挡分隔件的移动,但随着渗透压上升到阈值水平以上,它们被连续克服。 沿着胶囊长度方向的停止次数及其位置纵向设置了脉冲的数量和频率,分区的配置控制了脉冲强度。