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    • 15. 发明授权
    • Immediate release gastrointestinal drug delivery system
    • 延迟总释放胃肠道药物输送系统
    • US06531152B1
    • 2003-03-11
    • US09694314
    • 2000-10-24
    • E. Itzhak LernerMoshe FlashnerAdel Penhasi
    • E. Itzhak LernerMoshe FlashnerAdel Penhasi
    • A61K920
    • A61K9/286A61K9/205A61K9/2866
    • A gastrointestinal delivery system is provided. The system comprises a drug in combination with a swellable core material, the core being surrounded by a water-insoluble or relatively water-insoluble coating material in which particulate water-insoluble material is embedded. When the delivery device enters the gastrointestinal tract, the particulate matter takes up liquid, thus forming channels interconnecting the drug-containing core with the outside of the delivery device. Through these channels liquid enters the core which then swells to the point at which the coating is broken. When the integrity of the coating is destroyed, the core then disintegrates immediately releasing all or most of the drug at a specific site. By controlling parameters in the device, such as the core material, carrier material in the coating, and particulate matter, the location of release of the drug can be carefully controlled. Thus, the invention is also directed to a method of using the device for the treatment of disease by the release of drugs in the gastrointestinal tract in a location- and time-dependent manner.
    • 提供胃肠输送系统。 该系统包括与可溶胀核心材料组合的药物,该核心被水不溶性或相对不溶于水的不溶性材料包围,其中嵌入有颗粒状水不溶性材料。 当输送装置进入胃肠道时,颗粒物质吸收液体,从而形成将含药物核心与输送装置的外部相互连接的通道。 通过这些通道,液体进入芯,然后膨胀到涂层破裂的点。 当涂层的完整性被破坏时,核心然后在特定部位立即分解所有或大部分药物。 通过控制装置中的参数,例如芯材料,涂层中的载体材料和颗粒物质,可以仔细地控制药物的释放位置。 因此,本发明还涉及一种使用该装置通过以位置和时间依赖的方式在胃肠道中释放药物来治疗疾病的方法。
    • 19. 发明授权
    • Polymeric stents and other surgical articles
    • 聚合物支架和其他外科用品
    • US07410498B2
    • 2008-08-12
    • US10312712
    • 2001-06-26
    • Adel Penhasi
    • Adel Penhasi
    • A61F2/06
    • A61L31/148A61F2/86A61F2/91A61L31/146
    • A biocompatible non-memory expandable polymeric article selected from stents, implantable prostheses, catheters, other surgical articles and sealants for implantable prostheses, and which is at least in part biodegradable and includes a combination where hollow cylindrical element (2) is depicted in cutaway form to reveal helical element (4), terminated schematically at (6) and where a combination of at least one thermoplastic elastomeric component and at least one thermoplastic non-elastomeric component, the article being either porous articles or having the potential to become porous by action of body fluids in situ), the thermoplastic non-elastomeric component being present in such an amount as will provide mechanical strength and rigidity to the article when in an expanded mode.
    • 选自支架,可植入假体,导管,其他手术用品和用于可植入假体的密封剂的生物相容性非记忆可扩张聚合物制品,并且其至少部分可生物降解且包括中空圆柱形元件(2)以剖面形式描绘的组合 以揭示螺旋元件(4),其在(6)处示意性地终止,并且其中至少一种热塑性弹性体组分和至少一种热塑性非弹性体组分的组合,所述制品是多孔制品或具有通过作用变得多孔的潜力 的体液),所述热塑性非弹性体组分以这样的量存在,当处于膨胀模式时将为制品提供机械强度和刚度。