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    • 3. 发明申请
    • OPHTHALMIC COMPOSITION WITH DECREASED VISCOSITY
    • 具有降低粘度的眼底组合物
    • WO1995026711A1
    • 1995-10-12
    • PCT/FI1995000166
    • 1995-03-29
    • LEIRAS OYREUNAMÄKI, TimoLEHMUSSAARI, KariVARTIAINEN, EijaOKSALA, OlliALARANTA, SakariPOHJALA, ESKO
    • LEIRAS OY
    • A61K09/00
    • A61K9/0048Y10S514/912
    • The present invention is directed to an ophthalmic composition in the form of a topical aqueous solution consisting essentially of: an ophthalmologically active agent, an ion sensitive, hydrophilic polymer in an amount of 0.004 to 1.5 % by weight, at least one salt selected from the group of inorganic salts and buffers in a total amount of from 0.01 to 2.0 % by weight, a wetting agent in an amount of 0 to 3.0 % by weight, a preservative in an amount of 0 to 0.02 % by weight, water, and optionally a pH regulating agent in an amount sufficient to give a pH of 4.0 to 8.0 to the composition, the ratio between salt and polymer components being such that the solution exhibits a viscosity of less than 1000 mPas. The composition contains a sufficient amount of polymer to provide for a controlled absorption of the drug into the eye, its viscosity having been reduced to provide for better handling characteristics.
    • 本发明涉及一种局部水溶液形式的眼用组合物,其基本上由以下组成:眼科活性剂,0.004至1.5重量%的离子敏感性亲水性聚合物,至少一种选自 组合的无机盐和缓冲剂的总量为0.01-2.0重量%,润湿剂的量为0-3.0重量%,防腐剂的量为0至0.02重量%,水和任选地 一种pH调节剂,其量足以使组合物的pH为4.0-8.0,盐和聚合物组分之间的比例使溶液的粘度小于1000mPa·s。 组合物含有足够量的聚合物以提供药物对眼睛的受控吸收,其粘度已经降低以提供更好的处理特性。
    • 8. 发明申请
    • PHARMACEUTICAL COMPOSITIONS DERIVED FROM MICROELMULSION-BASED GELS, METHOD FOR THEIR PREPARATION AND NEW MICROEMULSION-BASED GELS
    • 由基于微胶囊的凝胶衍生的药物组合物,其制备方法和新的基于微乳液的凝胶
    • WO1995031969A1
    • 1995-11-30
    • PCT/FI1995000234
    • 1995-04-28
    • LEIRAS OYBACKLUND, SuneERIKSSON, FolkeRANTALA, MariaRANTALA, PerttiVARHO, Kari
    • LEIRAS OY
    • A61K09/107
    • A61K9/06A61K9/1075Y10S514/937Y10S514/938Y10S514/944
    • The invention relates to a pharmaceutical composition comprising a microemulsion made up of a hydrophilic component, a lipophilic component, a surfactant and a drug, wherein the hydrophilic component, the lipophilic component and the surfactant form, when examined on a macroscopic scale, a one-phase solution. The hydrophilic component is dispersed as colloidal droplets in the lipophilic component, or the lipophilic component is dispersed as colloidal droplets in the hydrophilic component. According to still another alternative the hydrophilic and the lipophilic components form a microemulsion with bicontinuous structure wherein said components form elongated adjacent channels. The drug is dissolved in the dispersed component or, in case of a microemulsion with a bicontinuous structure, in the hydrophilic or the lipophilic component. The microemulsion is stabilized by means of the surfactant. It is characteristic that a gelatinizer and water are added to the microemulsion thereby bringing the microemulsion into a gel form.
    • 本发明涉及一种药物组合物,其包含由亲水组分,亲脂性组分,表面活性剂和药物组成的微乳液,其中亲水组分,亲油性组分和表面活性剂形式在宏观尺度上检查时, 相溶液。 亲水性成分作为胶体液滴分散在亲油性成分中,或者亲油性成分作为胶体液滴分散在亲水性成分中。 根据另一替代方案,亲水和亲油组分形成具有双连续结构的微乳液,其中所述组分形成细长的相邻通道。 将该药物溶解在分散组分中,或在具有双连续结构的微乳液的情况下溶解在亲水或亲油组分中。 微乳液通过表面活性剂稳定。 特征在于,将微凝胶和水加入到微乳液中,从而使微乳液成为凝胶形式。