Method and apparatus for imaging of vessel segments
    85.
    发明授权
    Method and apparatus for imaging of vessel segments 有权
    用于血管段成像的方法和装置

    公开(公告)号:US08208995B2

    公开(公告)日:2012-06-26

    申请号:US11211483

    申请日:2005-08-24

    IPC分类号: A61B6/00

    摘要: An apparatus, method and software arrangement for imaging a surface of a structure that is in contact with an opaque fluid is provided. The apparatus includes an article of manufacture (e.g., a housing), a fluid delivery arrangement and an imaging arrangement. The housing includes an aperture formed in the article of manufacture. The fluid delivery arrangement is configured to deliver a volume of substantially transparent fluid to the aperture formed in the housing. The imaging arrangement is configured to image the surface of the structure using an imaging modality after the volume of the transparent fluid is delivered to the aperture, wherein the imaging arrangement and/or the article of manufacture is translated along the surface of the structure while imaging the surface of the structure.

    摘要翻译: 提供了一种用于对与不透明流体接触的结构的表面进行成像的装置,方法和软件装置。 该装置包括制品(例如,壳体),流体输送装置和成像装置。 壳体包括形成在制品中的孔。 流体输送装置构造成将一定体积的基本上透明的流体输送到形成在壳体中的孔。 成像装置被配置为在将透明流体的体积传送到孔之后使用成像模态来对结构的表面进行成像,其中成像装置和/或制品在结构的表面上被平移,而成像 结构的表面。

    SPECTRALLY ENCODED MINIATURE ENDOSCOPIC IMAGING PROBE
    86.
    发明申请
    SPECTRALLY ENCODED MINIATURE ENDOSCOPIC IMAGING PROBE 审中-公开
    光谱编码微型内窥镜成像探头

    公开(公告)号:US20110275899A1

    公开(公告)日:2011-11-10

    申请号:US13187106

    申请日:2011-07-20

    IPC分类号: A61B1/06

    摘要: A spectrally encoded endoscopic probe having high resolution and small diameter comprising at least one flexible optical fiber; an energy source; a grating through which said energy is transmitted such that the energy spectrum is dispersed; a lens for focusing the dispersed energy spectrum onto a sample such that the impingement spot for each wavelength is a separate position on the sample, the wavelength spectrum defining a wavelength encoded axis; means for mechanically scanning the sample with focused energy in a direction perpendicular to the wavelength encoded axis; a means for receiving energy reflected from the sample; and, a means for detecting the received reflected energy. The probe grating and lens delivers a beam of multi-spectral light having spectral components extending in one dimension across a target region and which is moved to scan in another direction. The reflected spectrum is measured to provide two dimensional imaging of the region.

    摘要翻译: 一种具有高分辨率和小直径的光谱编码内窥镜探针,包括至少一个柔性光纤; 能源; 所述能量通过所述光栅传播,使得能谱被分散; 用于将分散的能谱聚焦到样品上的透镜,使得每个波长的冲击点是样品上的分离位置,所述波长谱定义波长编码轴; 用于在垂直于波长编码轴的方向上以聚焦能量机械扫描样品的装置; 用于接收样品反射的能量的方法; 以及用于检测所接收的反射能量的装置。 探测光栅和透镜提供具有在一个维度上延伸穿过目标区域并且被移动以沿另一个方向扫描的光谱分量的多光谱光束。 测量反射光谱以提供该区域的二维成像。

    Devices and arrangements for performing coherence range imaging using a common path interferometer
    87.
    发明授权
    Devices and arrangements for performing coherence range imaging using a common path interferometer 有权
    使用公共路径干涉仪进行相干距离成像的装置和装置

    公开(公告)号:US07995210B2

    公开(公告)日:2011-08-09

    申请号:US11285301

    申请日:2005-11-21

    IPC分类号: G01B9/02 G01B11/02

    摘要: Devices, arrangements and apparatus adapted to propagate at least one electro-magnetic radiation are provided. In particular, a probe housing, a sample arm section and a reference arm section can be included. For example, the sample arm section can be at least partially situated within the probe housing, and configured to propagate a first portion of the electro-magnetic radiation that is intended to be forwarded to a sample. The reference arm section can be at least partially situated within the probe housing, and configured to propagate a second portion of the electro-magnetic radiation that is intended to be forwarded to a reference. In addition or as an alternative, an interferometer may be situated within the probe housing. The first and second portions may travel along substantially the same paths, and the electro-magnetic radiation can be generated by a narrowband light source that has a tunable center wavelength. Further, the first and second portions may be at least partially transmitted via at least one optical fiber. A splitting arrangement may be provided which splits the electro-magnetic radiation into the first and second portions, and positioned closer to the sample than to the source of the electro-magnetic radiation, and the first and second portions may be adapted to propagate in different directions. An apparatus may be provided that is configured to control an optical path length of the second portion.

    摘要翻译: 提供适于传播至少一个电磁辐射的装置,装置和装置。 特别地,可以包括探针壳体,样品臂部分和参考臂部分。 例如,样品臂部分可以至少部分地位于探针壳体内,并且被配置为传播旨在被转发到样品的电磁辐射的第一部分。 参考臂部分可以至少部分地位于探针壳体内,并且被配置为传播旨在被转发到参考的电磁辐射的第二部分。 另外或作为替代,干涉仪可以位于探针外壳内。 第一和第二部分可以沿着基本上相同的路径行进,并且电磁辐射可以由具有可调谐中心波长的窄带光源产生。 此外,第一和第二部分可以经由至少一根光纤至少部分地传输。 可以提供分裂装置,其将电磁辐射分裂成第一和第二部分,并且比电磁辐射源更靠近样品定位,并且第一和第二部分可适于以不同的方式传播 方向。 可以提供被配置为控制第二部分的光路长度的装置。

    System, method and arrangement which can use spectral encoding heterodyne interferometry techniques for imaging
    88.
    发明授权
    System, method and arrangement which can use spectral encoding heterodyne interferometry techniques for imaging 有权
    可以使用频谱编码外差干涉测量技术进行成像的系统,方法和布置

    公开(公告)号:US07859679B2

    公开(公告)日:2010-12-28

    申请号:US11445131

    申请日:2006-05-31

    IPC分类号: G01B9/02 G01B11/02

    摘要: Systems, arrangements and methods for obtaining three-dimensional imaging data are provided. For example, a broadband light source can provide a particular radiation. A first electro-magnetic radiation can be focused and diffracted, and then provided to at least one sample to generate a spectrally-encoded line. A second electro-magnetic radiation may be provided to a reference, which may include a double-pass rapidly-scanning optical delay, where the first and second electro-magnetic radiations can be based on the particular radiation. An interference between a third electro-magnetic radiation (associated with the first electro-magnetic radiation) and a fourth electro-magnetic radiation (associated with the second electro-magnetic radiation) can be detected. The spectrally-encoded line may be scanned over the sample in a direction approximately perpendicular to the line. Image data containing three-dimensional information can then be obtained based on the interference. The exemplary imaging methods and systems can be used in a small fiber optic or endoscopic probe.

    摘要翻译: 提供了用于获得三维成像数据的系统,布置和方法。 例如,宽带光源可以提供特定的辐射。 可以将第一电磁辐射聚焦和衍射,然后提供给至少一个样品以产生光谱编码的线。 可以将第二电磁辐射提供给参考,其可以包括双遍快速扫描光学延迟,其中第一和第二电磁辐射可以基于特定辐射。 可以检测第三电磁辐射(与第一电磁辐射相关联)和第四电磁辐射(与第二电磁辐射相关联)之间的干扰。 光谱编码的线可以在大致垂直于线的方向上扫描样品。 然后可以基于干扰获得包含三维信息的图像数据。 示例性的成像方法和系统可以用于小型光纤或内窥镜探针。

    Methods, arrangements and systems for polarization-sensitive optical frequency domain imaging of a sample
    89.
    发明授权
    Methods, arrangements and systems for polarization-sensitive optical frequency domain imaging of a sample 有权
    样品的偏振敏感光学频域成像的方法,布置和系统

    公开(公告)号:US07742173B2

    公开(公告)日:2010-06-22

    申请号:US11697012

    申请日:2007-04-05

    IPC分类号: G01B9/02

    摘要: Arrangements and methods are provided for obtaining data associated with a sample. For example, at least one first electro-magnetic radiation can be provided to a sample and at least one second electro-magnetic radiation can be provided to a reference (e.g., a non-reflective reference). A frequency of such radiation(s) can repetitively vary over time with a first characteristic period. In addition, a polarization state of the first electro-magnetic radiation, the second electro-magnetic radiation, a third electro-magnetic radiation (associated with the first radiation) or a fourth electro-magnetic radiation (associated with the second radiation) can repetitively vary over time with a second characteristic period which is shorter than the first period. The data for imaging at least one portion of the sample can be provided as a function of the polarization state. In addition or alternatively, the third and fourth electro-magnetic radiations can be combined so as to determine an axial reflectance profile of at least one portion of the sample.

    摘要翻译: 提供了用于获取与样本相关的数据的安排和方法。 例如,可以向样品提供至少一个第一电磁辐射,并且可以向参考(例如,非反射参考)提供至少一个第二电磁辐射。 这种辐射的频率可以在第一特征周期内随时间重复地变化。 此外,第一电磁辐射,第二电磁辐射,第三电磁辐射(与第一辐射相关联)或第四电磁辐射(与第二辐射相关联)的极化状态可以重复地 随着时间而变化,其具有比第一周期短的第二特征周期。 用于成像至少一部分样品的数据可以作为偏振态的函数提供。 另外或替代地,可以组合第三和第四电磁辐射,以便确定样品的至少一部分的轴向反射率分布。

    APPARATUS AND METHOD FOR RANGING AND NOISE REDUCTION OF LOW COHERENCE INTERFEROMETRY LCI AND OPTICAL COHERENCE TOMOGRAPHY OCT SIGNALS BY PARALLEL DETECTION OF SPECTRAL BANDS
    90.
    发明申请
    APPARATUS AND METHOD FOR RANGING AND NOISE REDUCTION OF LOW COHERENCE INTERFEROMETRY LCI AND OPTICAL COHERENCE TOMOGRAPHY OCT SIGNALS BY PARALLEL DETECTION OF SPECTRAL BANDS 有权
    通过平行检测光谱仪的低相干干涉LCI和光学相干TOMOGRAPHY OCT信号的范围和噪声降低的装置和方法

    公开(公告)号:US20100094576A1

    公开(公告)日:2010-04-15

    申请号:US12570443

    申请日:2009-09-30

    IPC分类号: G01B9/02 G06F19/00

    摘要: Apparatus and method for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source is split into N spectral bands. The N spectral bands are individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band is detected by a separate photo detector and amplified. For each spectral band the signal is band pass filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is reduced by a factor equal to the number of spectral bands. The signal remains the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.

    摘要翻译: 通过检测并行的一组光谱带来增加光学相干断层扫描和低相干干涉测量(“LCI”)信号的灵敏度的装置和方法,每个频带是光频率的唯一组合。 LCI宽带宽源分为N个频谱带。 N个光谱带被单独检测和处理,以使信噪比增加N倍。每个光谱带由单独的光检测器检测并被放大。 对于每个光谱带,信号通过模拟电子装置在信号带周围进行带通滤波,并且被数字化,或者,信号可以被数字化并且在软件中进行带通滤波。 结果,对信号的散粒噪声贡献减小了等于光谱带数的因子。 信号保持不变。 喷射噪声的降低增加了系统的动态范围和灵敏度。