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    Fiber optic rotary joints and methods of using and manufacturing same
    1.
    发明授权
    Fiber optic rotary joints and methods of using and manufacturing same 有权

    公开(公告)号：US10895692B2

    公开(公告)日：2021-01-19

    申请号：US15965035

    申请日：2018-04-27

    申请人： Canon USA, Inc.

    发明人： Daisuke Yamada

    IPC分类号： G01B9/02 ,  G02B6/36 ,  A61B5/00 ,  G02B6/293 ,  G02B6/32

    摘要： One or more fiber optic rotary joints (FORJ), free space beam combiners, OCT, SEE and/or fluorescence devices and systems for use therewith, methods of manufacturing same and storage mediums are provided. One or more embodiments of FORJs may be used with numerous applications in the optical field, including, but not limited to, OCT and fluorescence applications. Examples of such applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments.

    ISOSURFACE GENERATION METHOD AND VISUALIZATION SYSTEM
    2.
    发明申请
    ISOSURFACE GENERATION METHOD AND VISUALIZATION SYSTEM 审中-公开

    公开(公告)号：US20200082618A1

    公开(公告)日：2020-03-12

    申请号：US16125232

    申请日：2018-09-07

    申请人： Canon USA Inc.

    发明人： Zhimin Lu ,  Hitoshi Nakamura

    IPC分类号： G06T17/20 ,  G06T5/00

    摘要： The present invention relates to a method and system for constructing isosurfaces from 3D data sets, such as 3D image data that are based on a cubic grid (voxel image data). Specifically, 3D image is rendered from a voxel image that can be generated by a variety of medical modalities. The present invention is a modification of the MCA that allows for constructing an isosurface without holes resulting from some cubes having ambiguous isosurface topology. Specifically, to avoid holes resulting from ambiguities, multiple isosurfaces having different resolution levels are generated for ambiguous cubes to resolve the ambiguity.

    DEVICES, SYSTEMS, AND METHODS TO EMPHASIZE REGIONS OF INTEREST ACROSS MULTIPLE IMAGING MODALITIES
    3.
    发明申请
    DEVICES, SYSTEMS, AND METHODS TO EMPHASIZE REGIONS OF INTEREST ACROSS MULTIPLE IMAGING MODALITIES 审中-公开

    公开(公告)号：US20190339850A1

    公开(公告)日：2019-11-07

    申请号：US16401390

    申请日：2019-05-02

    申请人： Canon USA, Inc.

    发明人： Christina Ho

    IPC分类号： G06F3/0484 ,  A61B5/00 ,  G06F3/0488 ,  G06F3/0485

    摘要： One or more devices, systems, methods and storage mediums for optical imaging medical devices, such as, but not limited to, Optical Coherence Tomography (OCT), single mode OCT, and/or multi-modal OCT apparatuses and systems, and methods and storage mediums for use with same, for viewing, controlling, updating, and emphasizing multiple imaging modalities are provided herein. One or more embodiments provide at least one intuitive Graphical User Interface (GUI), method, device, apparatus, system, or storage medium to comprehend information, including, but not limited to, molecular structure of a vessel, and to provide an ability to manipulate the vessel information. In addition to controlling multiple imaging modalities, the GUI may operate for one or more applications, including, but not limited to, expansion/underexpansion (e.g., for a stent) and/or apposition/malapposition (e.g., for a stent), co-registration and imaging.

    Radial-line scanning spectrometer with two-dimensional sensor
    4.
    发明授权
    Radial-line scanning spectrometer with two-dimensional sensor 有权

    公开(公告)号：US10337987B2

    公开(公告)日：2019-07-02

    申请号：US15625899

    申请日：2017-06-16

    申请人： CANON USA INC. ,  THE GENERAL HOSPITAL CORPORATION

    发明人： Tzu-Yu Wu ,  Mitsuhiro Ikuta ,  Dongkyun Kang ,  Guillermo J. Tearney

    IPC分类号： G01J3/00 ,  G01N21/31 ,  G02B23/24 ,  G02B23/26 ,  A61B1/00

    摘要： An apparatus for spectrally encoded endoscopy (SEE) comprising an illumination element, a detection light guiding element, a rotary element, and a two-dimensional sensor. The illumination element is configured to direct an illumination light beam towards a sample. The detection light guiding element is configured to collect a reflected light beam from the sample. At least one of the illumination element and the detection light guiding element is configured to spectrally dispersed the illumination light beam or the reflected light beam, respectively. The rotary element is configured to rotate or oscillate the reflected light beam. The reflected light beam is guided from the rotary element to the two-dimensional sensor.

    THREE-DIMENSIONAL ENDOSCOPE
    6.
    发明申请
    THREE-DIMENSIONAL ENDOSCOPE 审中-公开

    公开(公告)号：US20180164574A1

    公开(公告)日：2018-06-14

    申请号：US15379109

    申请日：2016-12-14

    申请人： Canon USA Inc.

    发明人： Zhuo Wang

    IPC分类号： G02B23/24 ,  H04N13/02 ,  H04N5/225 ,  G02B5/18

    CPC分类号： G02B23/2415 ,  A61B1/00 ,  G02B23/2423 ,  G02B23/2469 ,  G02B23/2484 ,  H04N5/2256 ,  H04N13/254 ,  H04N13/257 ,  H04N13/271 ,  H04N2005/2255

    摘要： A three-dimensional (3D) endoscope is provided. The 3D endoscope comprises a probe; a positioning device to locate a tip of the probe at a first position O and a second position O′; a light guide extending through the probe and configured to guide a light propagating through the probe configured to project on a surface a first light beam from the tip at the first position and a second light beam from the tip at the second position; a detector configured to detect the first light beam reflected from the surface and the second light beam reflected from the surface; and an image processor configured to determine a first distance R between the first position and the surface based on a position difference between the first and second positions, a first deflection angle θ of the first light beam deflected from the probe at the first position and a second deflection angle θ′ of the second light beam deflected from the probe; obtain image data carried by the first and second light beams detected by the detector; and obtain a 3D image based, the first distance R, the first deflection angle θ, and the first rotation angle φ associated with each pixel on the image.

    ULTRAMINIATURE ENDOSCOPY
    10.
    发明申请
    ULTRAMINIATURE ENDOSCOPY 审中-公开

    公开(公告)号：US20200240839A1

    公开(公告)日：2020-07-30

    申请号：US16751082

    申请日：2020-01-23

    申请人： Canon USA, Inc.

    发明人： Mitsuhiro Ikuta ,  Tzu-Yu Wu

    IPC分类号： G01J3/02 ,  G01J3/28

    摘要： A spectrally encoded endoscopy optical device includes a bundle of multi-mode optical fibers that transmits light received from an imaging target to a spectrometer. A far field pattern of light transmitted through a fundamental mode of at least one of the multi-mode optical fibers is nonparallel to an optical axis of the spectrometer for reducing nonuniformity of the far field pattern at an input sensor of the spectrometer. For still further reduction of such nonuniformity, a far field pattern of light transmitted through a fundamental mode of the bundle of multi-mode optical fibers is nonparallel to an optical axis of the spectrometer.