Delivery devices with pulsatile effect
    11.
    发明授权
    Delivery devices with pulsatile effect 失效
    输送器具有脉动效应

    公开(公告)号:US5456679A

    公开(公告)日:1995-10-10

    申请号:US352268

    申请日:1994-12-07

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

    摘要: Delivery devices which include a beneficial agent and an activating mechanism in separate compartments separated by a moveable partition are designed to deliver the beneficial agent in a pulsatile manner through an orifice. The pulsatile delivery is achieved by a band of resilient material which is placed over the orifice. The resilient material is sufficiently tight to substantially seal the orifice when the pressure within the device is below a threshold level while at the same time being capable of being stretched when the internal pressure exceeds the threshold.

    摘要翻译: 包括有益剂和活化机构的输送装置被设计成以可动的方式通过孔传送有益剂。 脉动输送通过放置在孔口上方的弹性材料带来实现。 当装置内的压力低于阈值水平时,同时能够在内部压力超过阈值时拉伸,弹性材料足够紧密以基本上密封孔口。