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    • 79. 发明授权
    • Intravenous system for delivering a beneficial agent
    • 用于递送有益药物的静脉内系统
    • US5045059A
    • 1991-09-03
    • US568457
    • 1990-08-15
    • Felix TheeuwesSu I. Yum
    • Felix TheeuwesSu I. Yum
    • A61M5/14
    • A61M5/1407
    • A drug formulation chamber for an intravenous administration set is provided. The intravenous administration set includes a container of an IV fluid, a drip chamber, a drug formulation chamber, and an adapter-needle assembly. The drug formulation chamber has a fluid inlet and a fluid outlet for maintaining a flow of IV fluid through the chamber. A portion of the chamber wall is comprised of a window material which allows the drug to diffuse therethrough but which prevents convective loss of the IV fluid. A flow distributor is provided within the chamber for distributing the flow of IV fluid along the interior surface of the window. A transdermal-type drug delivery device is adhered to the exterior surface of the window. Drug is delivered by the delivery device through the window and into the flowing IV fluid. The device delivers drug into the IV fluid at a rate that is independent of the flow rate of IV fluid through the formulation chamber. The rate of drug delivery from the device into the IV fluid is controlled by either the window itself or by a membrane layer in the drug delivery device. A plurality of drug delivery devices may be adhered to the window to deliver a plurality of drugs or to deliver a single drug at a higher dosage rate. A similar window may be placed in an IV bag to deliver a drug into the IV fluid therein.
    • 提供了用于静脉内给药组的药物制剂室。 静脉内给药组包括IV液体的容器,滴液室,药物制剂室和适配器 - 针组件。 药物制剂室具有流体入口和流体出口,用于维持IV流体流过腔室的流动。 室壁的一部分由允许药物扩散通过但防止IV流体的对流损失的窗口材料构成。 在室内提供流动分配器,用于沿着窗口的内表面分配IV流体流。 透皮型药物输送装置粘附在窗户的外表面上。 药物由输送装置通过窗口输送到流动的IV流体中。 该装置以与通过制剂室的IV流体的流速无关的速率将药物递送到IV流体中。 从装置向IV流体的药物递送速率由窗口本身或药物递送装置中的膜层控制。 多个药物递送装置可以粘附到窗户以递送多种药物或以更高的剂量率递送单一药物。 类似的窗口可以放置在IV袋中以将药物递送到其中的IV流体中。