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    • 8. 发明授权
    • Oral osmotic device with hydrogel driving member
    • 具有水凝胶驱动构件的口腔渗透装置
    • US5573776A
    • 1996-11-12
    • US303288
    • 1994-09-08
    • Juan M. E. HarrisonBrian L. BarclayJerry D. ChildersJeri D. WrightVirgil A. PlacePatrick S. Wong
    • Juan M. E. HarrisonBrian L. BarclayJerry D. ChildersJeri D. WrightVirgil A. PlacePatrick S. Wong
    • A61K9/00A61K31/48A61K9/24
    • A61K31/48A61K9/0004
    • An osmotic device (10) for delivering an ergot alkaloid into the mouth of a human patient is disclosed. The device (10) has a size and shape adapting it to be comfortably retained in the mouth for extended periods of time. The device (10) comprises a wall (12) surrounding a compartment (13) housing a layer of an ergot alkaloid (14) and a layer (16) of a fluid swellable, hydrophilic polymer. A passageway (17) in the wall (12) connects the ergot alkaloid (14) with the exterior of the device (10). The wall (12) is permeable to the passage of aqueous biological fluid but substantially impermeable to the passage of the hydrophilic polymer (16). In one embodiment the ergot alkaloid (14) has a different color than the hydrophilic polymer (16). The wall (12) is sufficiently translucent to permit the patient to see the amount of ergot alkaloid (14) remaining to be delivered. Marking lines (19) may be provided on the wall (12) indicating the amount of ergot alkaloid (14) which has been delivered and/or the amount remaining to be delivered.
    • 公开了一种用于将麦角生物碱输送到人类患者的口中的渗透装置(10)。 装置(10)具有适应其舒适地保持在口中长时间的尺寸和形状。 装置(10)包括围绕容纳一角麦角生物碱(14)层和流体可溶胀的亲水性聚合物层(16)的隔室(13)的壁(12)。 壁(12)中的通道(17)将麦角生物碱(14)与装置(10)的外部连接。 所述壁(12)对于水性生物流体的通道是可渗透的,但是对于亲水性聚合物(16)的通过基本上是不透水的。 在一个实施方案中,麦角生物碱(14)具有与亲水性聚合物(16)不同的颜色。 壁(12)足够半透明以允许患者看到剩余的待转运麦角生物碱(14)的量。 标记线(19)可以设置在壁(12)上,指示已经输送的麦角生物碱(14)的量和/或剩余的待传送量。