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    • 83. 发明授权
    • Device for radiation-activated localized delivery of treatment agents
    • 用于辐射激活的局部递送治疗剂的装置
    • US09155830B2
    • 2015-10-13
    • US13739318
    • 2013-01-11
    • University of Miami
    • Mansoor M. AhmedXiaodong WuSeema GuptaAlan Pollack
    • A61M5/142A61M5/00A61K47/48A61M31/00
    • A61M5/00A61K47/6923A61M5/14276A61M31/00
    • The present invention provides for a biocompatible drug delivery device for the targeted treatment of cancer that is implantable within the tumorous mass of a patient. In one embodiment, the device comprises two polarizable elements mechanically coupled by a connecting element. The device also comprises one or more cancer treatment agents. When the polarizable elements are depolarized, such as by the application of ionizing radiation, the two polarizable elements are repelled from each other and release the cancer treatment agent. In another embodiment, one or more treatment agents are expelled from a miniaturized syringe when internal pressure of the device is increased by the production of gas bubbles in response to the application of ionizing radiation.
    • 本发明提供用于靶向治疗癌症的生物相容性药物递送装置,其可植入患者肿瘤块内。 在一个实施例中,该装置包括由连接元件机械耦合的两个可极化元件。 该装置还包含一种或多种癌症治疗剂。 当可极化元件被去极化时,例如通过施加电离辐射,两个可极化元件彼此排斥并释放癌症治疗剂。 在另一个实施方案中,响应于电离辐射的应用,通过产生气泡来增加装置的内部压力,将一种或多种处理剂从微型注射器排出。
    • 86. 发明授权
    • Magnetic iron oxide fine particles, and magnetic particle-containing water dispersion and process for producing the same
    • 磁性氧化铁微粒和含磁性颗粒的水分散体及其制造方法
    • US09127168B2
    • 2015-09-08
    • US14631353
    • 2015-02-25
    • TODA KOGYO CORPORATION
    • Toshiyuki HakataTomoko Okita
    • C09C1/24A61K47/48B82Y30/00C01G49/08A61K41/00A61K49/00B82Y5/00A61K47/04A61K49/04A61K49/18
    • C09C1/24A61K41/0052A61K47/6923A61K47/6929A61K49/0002A61K49/0428A61K49/1854B82Y5/00B82Y30/00C01G49/0036C01G49/08C01P2004/64C01P2004/80C01P2006/12C01P2006/42
    • The present invention relates to a magnetic particle-containing water dispersion wherein the magnetic particles have a primary particle diameter of 5 to 15 nm and an average secondary particle diameter of 10 to 60 nm, and the water dispersion has a zeta potential of not more than −20 mV when a pH value of the water dispersion lies within the range of 6 to 8, and further a surface of the respective magnetic particles is coated with a carboxyl group-containing polymer. The magnetic particle-containing water dispersion is produced by heating an aqueous solution in which the carboxyl group-containing polymer is dissolved, to a temperature of 90 to 100° C. in a nitrogen atmosphere; adding a solution of a ferrous (II) salt and a ferric (III) salt and an alkali solution to the aqueous solution to react with each other at the same temperature; adding ethanol to the solution to obtain a precipitate; and removing a supernatant liquid from the solution, and then dispersing the precipitate in water and subjecting the resulting dispersion to dialysis. The magnetic particle-containing water dispersion is useful as a magnetic particle-containing water dispersion capable of producing magnetic particle-containing drugs for diagnosis and therapies which can exhibit a uniform functionality, with a good reproducibility.
    • 本发明涉及一种含磁性颗粒的水分散体,其中磁性颗粒的初级粒径为5〜15nm,平均二次粒径为10〜60nm,水分散体的ζ电位不大于 当水分散体的pH值在6至8的范围内时,-20mV,并且进一步用含羧基的聚合物涂覆各个磁性颗粒的表面。 通过将含有羧基的聚合物溶解的水溶液在氮气气氛中加热至90〜100℃,制成含有磁性颗粒的水分散体; 在水溶液中加入亚铁(II)盐和三价铁(III)盐和碱溶液的溶液在相同温度下相互反应; 向溶液中加入乙醇以得到沉淀物; 从溶液中除去上清液,然后将沉淀物分散在水中,使得到的分散体透析。 含有磁性颗粒的水分散体可用作能够产生含有磁性颗粒的药物用于诊断和治疗的含磁性颗粒的水分散体,其可以显示均匀的官能度,具有良好的再现性。
    • 87. 发明授权
    • Matrix incorporated fluorescent porous and non-porous silica particles for medical imaging
    • 基质掺入荧光多孔和无孔二氧化硅颗粒进行医学成像
    • US09119875B2
    • 2015-09-01
    • US13803300
    • 2013-03-14
    • International Business Machines Corporation
    • Dylan J. BodayJason T. Wertz
    • A61K49/00A61K49/18
    • A61K49/0021A61K47/6923A61K49/0054A61K49/0093A61K49/1848A61K2300/00
    • A silica particle for medical imaging includes a bridged silane fluorescent dye incorporated throughout the particle matrix. Copolymerization of a bridged silane fluorescent dye (e.g., (R′O)3Si—R—Si(OR′)3, where R is a fluorescent organic bridging group, and where R′ is a methyl or ethyl group) and a tetralkoxysilane (e.g., Si(OR′)4, where R′ is a methyl or ethyl group) generates particles of a predetermined size and shape. This leaves the surface of each particle available for further modification to facilitate dispersion of the particle into different media. Hence, a surface modifier may be subsequently bonded onto the particle surface. In some embodiments, poly(ethylene glycol) is selected as the surface modifier to increase dispersion of the silica particle in an aqueous media. In some embodiments, the particle is porous allowing for an additional functionality (e.g., a secondary imaging material, such as magnetic nanoparticles, and/or a pharmaceutical drug) to be loaded within the pores.
    • 用于医学成像的二氧化硅颗粒包括掺入整个颗粒基质中的桥接硅烷荧光染料。 桥联硅烷荧光染料(例如(R'O)3Si-R-Si(OR')3)的共聚合,其中R是荧光有机桥连基团,其中R'是甲基或乙基)和四氮烷氧基硅烷 例如,Si(OR')4,其中R'是甲基或乙基)产生预定尺寸和形状的颗粒。 这使得每个颗粒的表面可用于进一步修饰以促进颗粒在不同介质中的分散。 因此,表面改性剂可以随后结合到颗粒表面上。 在一些实施方案中,选择聚(乙二醇)作为表面改性剂以增加二氧化硅颗粒在水性介质中的分散。 在一些实施方案中,颗粒是多孔的,允许另外的功能(例如,次级成像材料,例如磁性纳米颗粒和/或药物药物)被加载到孔内。
    • 89. 发明申请
    • MATRIX-INCORPORATED FLUORESCENT POROUS AND NON-POROUS SILICA PARTICLES FOR MEDICAL IMAGING
    • MATRIX-INCORPORATED荧光多孔和非多孔二氧化硅颗粒用于医学成像
    • US20150231280A1
    • 2015-08-20
    • US14703955
    • 2015-05-05
    • International Business Machines Corporation
    • Dylan J. BodayJason T. Wertz
    • A61K49/00
    • A61K49/0021A61K47/6923A61K49/0054A61K49/0093A61K49/1848A61K2300/00
    • A silica particle for medical imaging includes a bridged silane fluorescent dye incorporated throughout the particle matrix. Copolymerization of a bridged silane fluorescent dye (e.g., (R′O)3Si—R—Si(OR′)3, where R is a fluorescent organic bridging group, and where R′ is a methyl or ethyl group) and a tetralkoxysilane (e.g., Si(OR′)4, where R′ is a methyl or ethyl group) generates particles of a predetermined size and shape. This leaves the surface of each particle available for further modification to facilitate dispersion of the particle into different media. Hence, a surface modifier may be subsequently bonded onto the particle surface. In some embodiments, poly(ethylene glycol) is selected as the surface modifier to increase dispersion of the silica particle in an aqueous media. In some embodiments, the particle is porous allowing for an additional functionality (e.g., a secondary imaging material, such as magnetic nanoparticles, and/or a pharmaceutical drug) to be loaded within the pores.
    • 用于医学成像的二氧化硅颗粒包括掺入整个颗粒基质中的桥接硅烷荧光染料。 桥联硅烷荧光染料(例如(R'O)3Si-R-Si(OR')3)的共聚合,其中R是荧光有机桥连基团,其中R'是甲基或乙基)和四氮烷氧基硅烷 例如,Si(OR')4,其中R'是甲基或乙基)产生预定尺寸和形状的颗粒。 这使得每个颗粒的表面可用于进一步修饰以促进颗粒在不同介质中的分散。 因此,表面改性剂可以随后结合到颗粒表面上。 在一些实施方案中,选择聚(乙二醇)作为表面改性剂以增加二氧化硅颗粒在水性介质中的分散。 在一些实施方案中,颗粒是多孔的,允许另外的功能(例如,次级成像材料,例如磁性纳米颗粒和/或药物药物)被加载到孔内。