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    • 9. 发明申请
    • MAGNETIC SEPARATION USING NANOPARTICLES
    • 使用纳米颗粒的磁分离
    • WO2014120794A1
    • 2014-08-07
    • PCT/US2014/013633
    • 2014-01-29
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYCHILDREN'S MEDICAL CENTER CORPORATION
    • LEE, Jung-JaeJEONG, Kyung JaeKOHANE, Daniel, S.
    • B01D35/06
    • A61L9/00A61L2/00
    • Nanoparticles as described herein are configured to bind to bacterial contaminants, such as Gram positive bacteria, Gram negative bacteria, and endotoxins. The nanoparticles include a core comprising a magnetic material; and a plurality of ligands attached to the core. The ligands include, for example, bis(dipicolylamine) ("DPA") coordinated with a metal ion, e.g., Zn 2+ or Cu 2+ , to form, e.g., bis-Zn-DPA or bis-Cu-DPA, which can bind to the bacterial contaminants. The nanoparticles can be included in compositions for use in methods and systems to separate bacterial contaminants from liquids, such as liquids, such as blood, e.g., whole or diluted blood, buffer solutions, albumin solutions, beverages for human and/or animal consumption, e.g., drinking water, liquid medications for humans and/or animals, or other liquids.
    • 如本文所述的纳米颗粒被配置为结合细菌污染物,例如革兰氏阳性细菌,革兰氏阴性细菌和内毒素。 纳米颗粒包括包含磁性材料的芯; 和连接到芯的多个配体。 配体包括例如与金属离子(例如Zn 2+或Cu 2+)配位的双(二吲哚胺)(“DPA”),以形成例如双-Zn-DPA或双-Cu-DPA,其可以结合到 细菌污染物。 纳米颗粒可以包括在方法和系统中用于将细菌污染物与液体例如液体如血液(例如全血或稀释的血液,缓冲溶液,白蛋白溶液,用于人类和/或动物消耗的饮料)分离的方法和系统中, 例如饮用水,人类和/或动物的液体药物或其他液体。
    • 10. 发明申请
    • MULTI-MODAL IMAGING OF BLOOD FLOW
    • 血液流动多模态成像
    • WO2011153521A2
    • 2011-12-08
    • PCT/US2011/039230
    • 2011-06-06
    • MCLEAN HOSPITAL CORPORATIONFREDERICK, BlaiseTONG, Yunjie
    • FREDERICK, BlaiseTONG, Yunjie
    • A61B5/055A61B5/026A61B5/1455
    • A61B5/0035A61B5/0042A61B5/0075A61B5/02014A61B5/02042A61B5/0261A61B5/0263A61B5/0295A61B5/055A61B5/14551A61B5/4064A61B5/4088A61B5/4244A61B5/4312A61B5/4842A61B5/4848A61B5/7203A61B5/7225A61B5/7278A61B5/742
    • The application features methods, devices, and systems for measuring blood flow in a subject. The computer-implemented methods include receiving functional magnetic resonance imaging (fMRI) data that provides information on at least one of volume or oxygenation of blood at one or more locations in a body over a first predetermined length of time. The methods also include receiving near-infrared spectroscopic (NIRS) imaging or measurement data representing at least one of blood concentration or oxygenation at a first portion of the body over a second predetermined length of time. The methods further include deriving, from the fMRI data corresponding to a second portion of the body, a time varying data set representing changes in blood oxygenation or volume or both blood oxygenation and volume at the second portion over the first predetermined length of time and determining, by a computing device, a time delay and a value of a similarity metric corresponding to a part of the spectroscopic imaging data that most closely matches the time varying data set. The time delay represents a difference between a first time in which blood flows from a third portion in the body to the first portion and a second time in which blood flows to the second portion from the third portion. The value of the similarity metric represents an amount of blood at the second portion. An estimate of a characteristic of at least one of blood flow or blood volume in the second portion at a given time is determined based on the time delay and the value of the similarity metric.
    • 该应用的特征在于测量受试者血液流动的方法,装置和系统。 计算机实现的方法包括接收功能性磁共振成像(fMRI)数据,该功能磁共振成像(fMRI)数据在第一预定时间长度上提供关于身体中的一个或多个位置的血液的体积或氧合中的至少一种的信息。 所述方法还包括在第二预定时间长度上接收表示身体第一部分的血液浓度或氧合中的至少一种的近红外光谱(NIRS)成像或测量数据。 所述方法还包括从对应于身体的第二部分的fMRI数据导出表示在第一预定时间长度上的血氧饱和度或体积变化或第二部分的血氧值和体积变化的时变数据集,并确定 通过计算设备,时间延迟和与最接近地匹配时变数据集的分光成像数据的一部分相对应的相似性度量的值。 时间延迟表示血液从身体的第三部分流向第一部位的第一次与血液从第三部分流向第二部分的第二次的差。 相似性度量的值表示第二部分处的血液量。 基于时间延迟和相似性度量的值来确定在给定时间的第二部分中的血流或血液体积中的至少一个的特性的估计。