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    • 6. 发明申请
    • Volume Efficient Controlled Release Dosage Form
    • 体积有效的控制释放剂型
    • US20070184112A1
    • 2007-08-09
    • US11684821
    • 2007-03-12
    • Patrick WongFrancisco JaoDavid EdgrenRobert SkluzacekShu Li
    • Patrick WongFrancisco JaoDavid EdgrenRobert SkluzacekShu Li
    • A61K9/24
    • A61K9/0004
    • A dosage form that facilitates the controlled release of an active agent at a desired release rate or release rate profile includes a bi-layer membrane system and an osmotic core. The bi-layer membrane system includes a semipermeable membrane and an osmosensitive membrane and forms an internal compartment occupied by the osmotic core. The osmotic core includes an active agent composition and a light push layer. A passageway is formed through the bi-layer membrane system and permits expulsion of the active agent composition from the dosage form during operation. The bi-layer membrane system and the osmotic core are formulated and formed to provide controlled release of the active agent included in the active agent composition, while simultaneously facilitating increased loading of active agent within a dosage form of given dimension and increasing the delivery efficiency of such active agent relative to prior osmotic dosage forms including a push layer.
    • 有利于以期望的释放速率或释放速率曲线控制释放活性剂的剂型包括双层膜系统和渗透核。 双层膜系统包括半透膜和渗透膜,并形成由渗透芯占据的内部隔室。 渗透芯包括活性剂组合物和轻推层。 通过双层膜系统形成通道,并允许活性剂组合物在操作期间从剂型中排出。 双层膜系统和渗透芯被配制和形成以提供包含在活性剂组合物中的活性剂的受控释放,同时促进活性剂在给定维度的剂型中的负载增加,并且提高 这种活性剂相对于包括推层的先前的渗透剂型。
    • 10. 发明申请
    • Dosage Form for Time-Varying Patterns of Drug Delivery
    • 药物递送时间变化模式的剂型
    • US20070207204A1
    • 2007-09-06
    • US11744999
    • 2007-05-07
    • David EdgrenPatrick WongShu Li
    • David EdgrenPatrick WongShu Li
    • A61K9/66
    • A61K9/0004A61K31/277
    • The present invention provides a multi-release oral drug delivery system that initiates drug release following an initial drug-free release interval, after administration to a subject, and a second drug-free release period before release of another dose of drug. The system has (1) inner compartments enclosed within a semipermeable membrane, and (2) a drug coating on the exterior of the semipermeable membrane surrounded by a microporous membrane, which microporous membrane is permeable to fluid and drug. The drug coating is released after the initial drug-free release interval. An inner compartment drug is released after a second drug-free release interval provided by a drug-free inner compartment.
    • 本发明提供一种多次释放的口服药物递送系统,其在给予受试者之后,在初始无药物释放间隔之后启动药物释放,以及释放另一剂量药物之前的第二无药物释放期。 该系统具有(1)封闭在半透膜内的内隔室,(2)由微孔膜包围的半透膜外部的药物涂层,该微孔膜可渗透流体和药物。 药物涂层在初始无药物释放间隔后释放。 在由无药物的内隔室提供的第二无药物释放间隔后释放内室药物。