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    • 4. 发明申请
    • LOCAL CONCENTRATION MANAGEMENT SYSTEM
    • 本地集中管理系统
    • WO03009882A2
    • 2003-02-06
    • PCT/US0222813
    • 2002-07-16
    • DURECT CORPTHEEUWES FELIXYUM SU IL
    • THEEUWES FELIXYUM SU IL
    • A61M25/00A61M25/14A61M25/16A61M
    • A61M25/00A61M25/0043A61M2025/0057A61M2025/105A61M2025/1086
    • The invention provides a local concentration management system (LCMS) for delivery of highly concentrated therapeutic agent formulations. The LCMS comprises a device comprising an elongate body defining a lumen between its proximal and distal ends, and a diffuser element, a dilutor element, or both. The diffuser element, which is selectively permeable to the agent, is operatively associated with the elongate body so that agent flows through the elongate body, and into and through the diffuser element to exit the system. The dilutor element can be operatively associated with the system to be in fluid communication with the elongate body lumen, a diffusion space defined by a diffuser element inner wall, or both. The dilutor element is selectively water permeable, but substantially impermeable to agent, to provide for dilution of the agent during transit through the system. The LCMS system is designed to disperse and/or dilute the drug delivery stream.
    • 本发明提供了用于递送高度浓缩的治疗剂制剂的局部浓度管理系统(LCMS)。 LCMS包括装置,其包括在其近端和远端之间限定内腔的细长主体,以及扩散器元件,稀释元件或两者。 对试剂选择性渗透的扩散器元件可与细长体可操作地连接,使得试剂流过细长体并进入并通过扩散器元件以离开系统。 稀释元件可以与系统可操作地相关联以与细长体腔流体连通,由扩散器元件内壁或两者限定的扩散空间。 稀释剂元件选择性地是水可渗透的,但是对试剂基本上是不可渗透的,以便在通过系统运输期间提供试剂的稀释。 LCMS系统被设计成分散和/或稀释药物输送流。
    • 7. 发明申请
    • DELAYED ONSET TRANSDERMAL DELIVERY DEVICE
    • 延迟ONSET TRANSDERMAL交付设备
    • WO1994008572A1
    • 1994-04-28
    • PCT/US1993009637
    • 1993-10-07
    • ALZA CORPORATIONLEE, Eun, SooYUM, Su, IlTHEEUWES, Felix
    • ALZA CORPORATION
    • A61K09/70
    • A61K9/7084A61K47/585
    • The present invention is directed to a transdermal delivery device (10) for the controlled release of a drug or other therapeutic agent to skin or mucosa and adapted to delay the onset of therapeutic agent delivery at a therapeutically effective rate for a predetermined time after placement of the device onto the skin or mucosa. The device comprises a nonaqueous reservoir (104) which contains a therapeutic agent in complexation with an ion-exchange resin and also contains an activating agent, the reservoir having a surface through which the therapeutic agent is released to the skin or mucosa; and a rate-controlling membrane (106) disposed between the skin or mucosa and the releasing surface of the reservoir (104) for controlling the rate at which water is absorbed into the reservoir, the rate-controlling membrane (106) being substantially free of therapeutic agent prior to placement of the device onto the skin or mucosa. The present invention has the additional advantage of providing the therapeutic agent in a stable form prior to placement on the skin or mucosa as well as in a form suitable for absorption after such placement.
    • 本发明涉及一种用于将药物或其它治疗剂受控释放至皮肤或粘膜并适于在治疗有效率之后以预定时间延迟治疗剂递送开始的透皮递送装置(10) 该装置在皮肤或粘膜上。 该装置包括非水储存器(104),其含有与离子交换树脂络合的治疗剂并且还含有活化剂,所述储存器具有治疗剂通过其释放到皮肤或粘膜的表面; 以及设置在皮肤或粘膜与储存器(104)的释放表面之间的速率控制膜(106),用于控制水被吸收到储存器中的速率,速率控制膜(106)基本上不含 在将装置置于皮肤或粘膜上之前的治疗剂。 本发明具有额外的优点,即在放置在皮肤或粘膜之前以及在这种放置之后适合吸收的形式,以稳定的形式提供治疗剂。