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    • 5. 发明授权
    • Systems and methods for spectroscopy of biological tissue
    • 生物组织光谱系统和方法
    • US07647092B2
    • 2010-01-12
    • US10178062
    • 2002-06-21
    • Jason T. MotzLuis H. GalindoMartin HunterRamachandra DasariMichael S. Feld
    • Jason T. MotzLuis H. GalindoMartin HunterRamachandra DasariMichael S. Feld
    • A61B6/06
    • A61B5/02007A61B5/0071A61B5/0075A61B5/0084A61B5/0086A61B5/0091A61B5/415A61B5/4312A61B5/4519A61B5/7232G01N21/474G01N21/65G01N2021/4745G01N2021/4759G01N2021/656
    • The system and method of the present invention relates to using spectroscopy, for example, Raman spectroscopic methods for diagnosis of tissue conditions such as vascular disease or cancer. In accordance with a preferred embodiment of the present invention, a system for measuring tissue includes a fiber optic probe having a proximal end, a distal end, and a diameter of 2 mm or less. This small diameter allows the system to be used for the diagnosis of coronary artery disease or other small lumens or soft tissue with minimal trauma. A delivery optical fiber is included in the probe coupled at the proximal end to a light source. A filter for the delivery fibers is included at the distal end. The system includes a collection optical fiber (or fibers) in the probe that collects Raman scattered radiation from tissue, the collection optical fiber is coupled at the proximal end to a detector. A second filter is disposed at the distal end of the collection fibers. An optical lens system is disposed at the distal end of the probe including a delivery waveguide coupled to the delivery fiber, a collection waveguide coupled to the collection fiber and a lens.
    • 本发明的系统和方法涉及使用光谱学,例如用于诊断诸如血管疾病或癌症的组织条件的拉曼光谱方法。 根据本发明的优选实施例,用于测量组织的系统包括具有近端,远端和2mm或更小直径的光纤探针。 这种小直径允许系统用于诊断冠状动脉疾病或其他小腔或软组织,具有最小的创伤。 输送光纤包括在近端耦合到光源的探针中。 用于输送纤维的过滤器包括在远端。 该系统包括在探针中收集来自组织的拉曼散射辐射的收集光纤(或纤维),收集光纤在近端耦合到检测器。 第二过滤器设置在收集纤维的远端。 光学透镜系统设置在探头的远端,包括耦合到输送纤维的输送波导,耦合到收集光纤的收集波导和透镜。
    • 7. 发明申请
    • METHODS AND SYSTEM FOR CONFOCAL LIGHT SCATTERING SPECTROSCOPIC IMAGING
    • 用于共焦光散射光谱成像的方法和系统
    • US20110310384A1
    • 2011-12-22
    • US13139953
    • 2009-12-22
    • Irene GeorgakoudiPong-Yu HuangMartin Hunter
    • Irene GeorgakoudiPong-Yu HuangMartin Hunter
    • G01J3/28
    • G01B11/24A61B5/0059A61B5/0068G01J3/4412G01N21/31G01N21/474G02B21/0064G02B21/0092
    • The present invention is generally directed to imaging methods and apparatus that employ angular and/or wavelength distribution of light backscattered from multiple portions of a sample in response to illumination by electromagnetic radiation to generate one, two or three dimensional images of the sample. In many embodiments, confocal imaging can be employed to detect the backscattered radiation, e.g., to measure spectral signals of layered samples (such as biological samples) through optical sectioning. The methods of the invention can be applied to a variety of samples including, without limitation, biological and non-biological samples, organic and inorganic samples, to obtain information, e.g., regarding morphological, compositional, and/or structural variations among different portions of the sample. By way of example, in some applications the methods of invention can be employed to obtain light scattering signals from cells or tissues buried under the skin.
    • 本发明一般涉及成像方法和装置,其采用来自样品的多个部分的反向散射的光的角度和/或波长分布,以响应于电磁辐射的照射而产生样品的一维,二维或三维图像。 在许多实施例中,可以采用共焦成像来检测反向散射辐射,例如通过光学切片测量分层样品(例如生物样品)的光谱信号。 本发明的方法可以应用于各种样品,包括但不限于生物和非生物样品,有机和无机样品,以获得关于例如关于不同部分之间的形态,组成和/或结构变化的信息 例子。 作为示例,在一些应用中,可以采用本发明的方法来从掩埋在皮肤下的细胞或组织获得光散射信号。
    • 8. 发明申请
    • NON-INVASIVE OPTICAL CHARACTERIZATION OF BIOMATERIAL MINERALIZATION
    • 生物矿物矿物非侵入性光学特征
    • US20110109910A1
    • 2011-05-12
    • US12867383
    • 2009-02-19
    • Irene GeorgakoudiSharad GuptaMartin HunterDavid L. Kaplan
    • Irene GeorgakoudiSharad GuptaMartin HunterDavid L. Kaplan
    • G01N21/47
    • G01N21/47G01N21/21G01N2021/4792
    • In one aspect, the present invention generally provides methods for characterizing mineralization of a material, e.g., a biomaterial, by illuminating the material with radiation and analyzing radiation scattered from the material in response to the illumination. For example, in some embodiments, a material can be illuminated with polarized radiation at a plurality of wavelengths and the elastically scattered radiation corresponding to two or more of those wavelengths can be collected at two polarizations: one parallel and the other perpendicular to the illumination polarization. A differential intensity of the scattered radiation at the two polarizations can be analyzed as a function of wavelength to obtain information regarding the morphology of mineral deposits in the sample. Further, the total scattered radiation can be analyzed to derive information regarding the level of mineralization.
    • 在一个方面,本发明通常提供用于通过用辐射照射材料来表征材料(例如生物材料)的矿化的方法,并且响应于照明分析从材料散射的辐射。 例如,在一些实施例中,可以以多个波长的偏振辐射照射材料,并且对应于这些波长中的两个或更多个的弹性散射辐射可以以两个极化收集:一个平行且另一个垂直于照明偏振 。 可以分析两个极化处的散射辐射的差分强度作为波长的函数,以获得关于样品中矿物沉积物形态的信息。 此外,可以分析总散射辐射以得到关于矿化水平的信息。