Multi-layer delivery system
    52.
    发明授权
    Multi-layer delivery system 失效
    多层交付系统

    公开(公告)号:US4957494A

    公开(公告)日:1990-09-18

    申请号:US283631

    申请日:1988-12-13

    IPC分类号: A61K9/00 A61M31/00

    CPC分类号: A61M31/002 A61K9/0004

    摘要: A dispenser for use in a fluid environment which is capable of delivery of plurality of discrete drug containing layers in any desired delivery pattern or profile. The dispenser comprises a rigid housing containing a plurality of drug layers which may be separated by drug-free layers. An outlet is provided at one end of the housing and a fluid actuated driving means is provided between the other end of the housing and the drug layers. The portion of the housing in proximity to the driving means has a controlled permeability to water whereby, upon immersion in a fluid environment the drug layers are driven towards the outlet. Various delivery patterns are possible by appropriate selection of the comparison and dimensions of the drug and drug-free layers.

    摘要翻译: 一种在流体环境中使用的分配器,其能够以任何期望的输送模式或轮廓递送多个离散的含药层。 分配器包括容纳多个药物层的刚性壳体,其可由无药物层分离。 出口设在壳体的一端,并且流体驱动的驱动装置设置在壳体的另一端和药物层之间。 壳体靠近驱动装置的部分对水具有受控的渗透性,因此当浸入流体环境中时,药物层朝着出口被驱动。 可以通过适当选择药物和无药物层的比较和尺寸来实现各种递送模式。

    Osmotic device for administering certain drugs
    55.
    发明授权
    Osmotic device for administering certain drugs 失效
    用于给予某些药物的渗透装置

    公开(公告)号:US4765989A

    公开(公告)日:1988-08-23

    申请号:US902915

    申请日:1986-09-02

    IPC分类号: A61K9/00 A61K9/22

    CPC分类号: A61K9/0004

    摘要: An osmotic system is disclosed comprising a wall comprising in at least a part of a semipermeable material that surrounds a compartment. The compartment contains an osmotic composition comprising a beneficial drug selected from the group consisting of nifedipine, prazosin and doxazosin, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system.

    摘要翻译: 公开了渗透系统,其包括围绕隔室的至少一部分半渗透材料的壁。 隔室含有渗透组合物,其包含选自硝苯地平,哌唑嗪和多沙唑嗪的有益药物,以及第二和不同的渗透组合物。 墙壁上的通道将第一个组合物与系统的外部连接起来。

    Expandable osmotic composition and coating suspension
    59.
    发明授权
    Expandable osmotic composition and coating suspension 有权
    可膨胀的渗透组合物和涂层悬浮液

    公开(公告)号:US07338663B2

    公开(公告)日:2008-03-04

    申请号:US10609061

    申请日:2003-06-28

    IPC分类号: A61K9/00

    CPC分类号: A61K9/0004 A61K31/085

    摘要: The present invention includes an expandable osmotic layer and a coating suspension for providing an expandable osmotic layer, both of which are useful for the manufacture of controlled release dosage forms. The expandable osmotic layer of the present invention may be produced using the coating suspension of the present invention. Advantageously, the coating suspension of the present invention can be used to coat expandable osmotic layers under both wet and dry process conditions without sacrificing the quality of the expandable osmotic layers produced, and therefore provides a relatively robust coating suspension that facilitates commercial production of controlled release dosage forms including a coated expandable osmotic layer.

    摘要翻译: 本发明包括可膨胀渗透层和用于提供可膨胀渗透层的涂层悬浮液,两者都可用于制造控释剂型。 本发明的可膨胀渗透层可以使用本发明的涂布悬浮液来制造。 有利地,本发明的涂层悬浮液可用于在湿法和干法处理条件下涂覆可膨胀渗透层,而不会牺牲所生产的可膨胀渗透层的质量,因此提供了有利于商业生产受控释放的相对坚固的涂层悬浮液 剂型,包括涂覆的可扩张渗透层。