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    • 85. 发明授权
    • Magnetically modulated polymeric drug release system
    • 磁调制聚合物药物释放系统
    • US5019372A
    • 1991-05-28
    • US579050
    • 1990-09-07
    • Judah FolkmanRobert S. Langer, Jr.Dean S. T. Hsieh
    • Judah FolkmanRobert S. Langer, Jr.Dean S. T. Hsieh
    • A61K9/00A61K9/50
    • A61K9/0024A61K9/0009A61K9/5094
    • A magnetically responsive composition for the modulated, sustained administration of a biologically active substance, the composition being in the form of a body sized and shaped for placement in the environment of use, the environment including an aqueous fluid, the body comprising, in admixture, a first phase comprising a biocompatible, plastically deformable, polymeric matrix, the polymeric matrix being insoluble in the environment of use, a second phase having a biologically active substance distributed throughout the matrix to be released to the aqueous fluid outside the matrix, and a third phase comprising a magnetically responsive substance encapsulated within the matrix so that, upon exposure of the body to an oscillating magnetic field, the rate of release of the biologically active substance to the aqueous fluid is increased.
    • 一种用于调节,持续施用生物活性物质的磁响应组合物,所述组合物为身体形式,其尺寸和形状用于放置在使用环境中,所述环境包括水性流体,所述身体包含混合物, 第一阶段,其包含生物相容性,可塑性变形的聚合物基质,所述聚合物基质不溶于使用环境,第二相具有分布在整个基质中的生物活性物质以释放到基质外部的水性流体, 其包括包封在基质内的磁响应物质,使得当身体暴露于振荡磁场时,生物活性物质释放到水性流体的速率增加。
    • 86. 发明授权
    • Method of purifying endothelial cell growth factors using immobilized
heparin
    • 使用固定化肝素纯化内皮细胞生长因子的方法
    • US4882275A
    • 1989-11-21
    • US849045
    • 1986-04-07
    • Michael Klagsbrun
    • Michael Klagsbrun
    • A61K38/00C07K14/50C07K16/22
    • C07K16/22C07K14/501A61K38/00
    • Endothelial cell growth factor (ECG) from various sources possesses a strong and specific affinity for heparin. This strong affinity of ECG for heaprin enables removal of undesired impurities from a mixture comprising ECG by: (a) contacting immobilized heparin with the mixture to form a heparin-ECG complex; (b) separating uncomplexed mixture from the complex; and (c) contacting the complex with a salt solution of a salt concentration and pH effective to separate the ECG from the heparin. The resulting purified ECG (or fragment thereof) is useful in therapeutics and as an additive for cell culturing. The purified ECG is also useful to raise antibodies that are used in therapeutics and in ECG immunoassays.
    • 来自各种来源的内皮细胞生长因子(ECG)对肝素具有强烈和特异性的亲和力。 ECG对于堆积蛋白的这种强亲合力使得能够通过以下方式从含有ECG的混合物中除去不期望的杂质:(a)使固定化的肝素与混合物接触以形成肝素-ECc复合体; (b)将未络合的混合物与络合物分离; 和(c)使该配合物与盐浓度和pH有效的盐溶液接触以将ECG与肝素分离。 所得纯化的ECG(或其片段)可用于治疗学和作为细胞培养的添加剂。 纯化的ECG也可用于产生用于治疗和ECG免疫测定中的抗体。
    • 90. 发明授权
    • Brain electrical activity mapping
    • 脑电活动测绘
    • US4421122A
    • 1983-12-20
    • US263939
    • 1981-05-15
    • Frank H. Duffy
    • Frank H. Duffy
    • A61B5/0484G06F17/00A61B5/04
    • A61B5/0484A61B5/4094A61B5/7257
    • Apparatus for generating a topographic display of information on brain electrical activity based on responses of electrical-activity transducers placed on the skull. In different aspects, the brain is stimulated at pseudorandom intervals to produce EP responses; matrices corresponding to the electrical responses are processed to generate a statistical comparison matrix and the corresponding display map is grid sector analyzed; a series of tests is administered some of which put the brain in a simple resting state, others putting the brain in nonresting states of varying activity level; statistical comparison matrixes are generated representing the statistical difference between normal and abnormal groups at different skull locations with respect to different brain activities; significance probability maps are generated each representing the statistical difference between a patient and the normal population with respect to different brain activities; and an epileptic spike is caused, a sufficient number of data matrices is generated to capture onset of the spike, and the frame rate of display of the corresponding topographic maps is selectably changed for observing the onset.
    • 用于基于放置在头骨上的电活动换能器的响应产生关于脑电活动的信息的地形显示的装置。 在不同方面,以伪随机间隔刺激大脑产生EP反应; 对应于电响应的矩阵被处理以产生统计比较矩阵,并且相应的显示图是网格扇区分析的; 一些测试被管理,其中一些使大脑处于简单的静止状态,其他测试将大脑置于不同活动水平的非活动状态; 生成统计比较矩阵,代表不同头脑位置处的正常组和异常组之间相对于不同脑活动的统计学差异; 生成显着性概率图,每个都代表患者与正常人群相对于不同大脑活动的统计学差异; 并且引起癫痫尖峰,产生足够数量的数据矩阵以捕获尖峰的开始,并且可选择地改变对应的地形图的帧速率以观察发作。