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    • 1. 发明申请
    • OCT OPTICAL PROBE AND OPTICAL TOMOGRAPHY IMAGING APPARATUS
    • OCT光学探头和光学成像装置
    • US20090198125A1
    • 2009-08-06
    • US12363021
    • 2009-01-30
    • Koki NAKABAYASHIMasahiro TOIDAKiichi KATOYutaka KOROGITadashi MASUDA
    • Koki NAKABAYASHIMasahiro TOIDAKiichi KATOYutaka KOROGITadashi MASUDA
    • A61B6/02A61B1/06A61B6/00
    • A61B5/6852A61B5/0066
    • An OCT optical probe to be inserted into a subject includes: a cylindrical sheath to be inserted into a subject; an optical fiber disposed in the internal space of the sheath; a rotatably-supporting portion fixed to the optical fiber in the vicinity of a distal end of the optical fiber; a distal optical system to deflect light emitted from the distal end of the optical fiber toward the subject; a holding portion to hold the distal optical system such that the optical system is rotatably supported by the rotatably-supporting portion; and a flexible shaft covering the optical fiber in the internal space, wherein the holding portion is fixed to a distal end of the flexible shaft. Using the OCT optical probe of the invention, the problem of degradation of measurement accuracy due to optical insertion loss and optical reflection loss at a rotary joint can be eliminated inexpensively and safely.
    • 要插入到受试者中的OCT光学探针包括:插入到受试者中的圆柱形护套; 设置在护套的内部空间中的光纤; 在光纤的远端附近固定在光纤上的可转动支撑部; 远端光学系统,用于将从光纤的远端发射的光朝向被摄体偏转; 保持部,其保持所述远端光学系统,使得所述光学系统由所述可旋转支撑部可旋转地支撑; 以及在所述内部空间中覆盖所述光纤的柔性轴,其中所述保持部固定到所述柔性轴的远端。 使用本发明的OCT光学探针,可以廉价且安全地消除由于旋转接头处的光插入损耗和光反射损失引起的测量精度降低的问题。
    • 3. 发明申请
    • OPTICAL TOMOGRAPHIC IMAGING SYSTEM
    • 光学成像系统
    • US20090086213A1
    • 2009-04-02
    • US12239782
    • 2008-09-28
    • Tadashi MASUDA
    • Tadashi MASUDA
    • G01B9/02
    • A61B5/6852A61B5/0066A61B5/0073G01B9/02004G01B9/0205G01B9/02061G01B9/02083G01B9/02091G02B6/32
    • The optical tomographic imaging system includes a main body for acquiring an optical tomographic image, an optical probe having a rotary optical fiber for guiding the measuring and returning light, a measuring unit, and a sheath rotatably holding the rotary optical fiber and the measuring unit, a rotary drive unit for rotatably coupling the rotary optical fiber to a stationary optical fiber connected with the main body, an extra length handling mechanism for winding the optical probe into a loop having at least a minimum diameter and an attaching unit removably attaching the optical probe. The extra length handling mechanism winds an extra length of the optical probe by a length depending upon a length up to the location to be examined. The system eliminates the need to change the optical probe depending upon the location to be examined and the need to adjust the optical path length of reference light.
    • 光学层析成像系统包括用于获取光学断层图像的主体,具有用于引导测量和返回光的旋转光纤的光学探针,测量单元和可旋转地保持旋转光纤和测量单元的护套, 用于将旋转光纤可旋转地连接到与主体连接的固定光纤的旋转驱动单元,用于将光学探针卷绕到具有至少最小直径的环路中的额外长度的处理机构,以及可移除地附接光学探头的附接单元 。 额外的长度处理机构根据长度直到被检查位置,将光学探针的额外长度卷绕长度。 该系统不需要根据被检查的位置改变光学探针,并且需要调整参考光的光程长度。
    • 4. 发明申请
    • OPTICAL ROTARY ADAPTER AND OPTICAL TOMOGRAPHIC IMAGING SYSTEM USING THE SAME
    • 光学旋转适配器和使用该光学旋转成像系统的光学成像系统
    • US20090251704A1
    • 2009-10-08
    • US12239784
    • 2008-09-28
    • Tadashi MASUDA
    • Tadashi MASUDA
    • G01B9/02G02B6/26
    • A61B5/0073A61B5/0066G01B9/02004G01B9/0205G01B9/02061G01B9/02083G01B9/02091G01B2290/70G01N21/4795G01N2021/1787G02B6/327G02B6/3604H04B10/25
    • The optical rotary adapter is used with an optical tomographic imaging system for acquiring an optical tomographic image of an object under measurement. The adapter includes a fixed sleeve, a stationary optical fiber supported by the fixed sleeve and having an inclined end face, a stationary collimating lens spaced a given distance from the inclined end face, a mounting cylinder carried rotatably with respect to the fixed sleeve, a rotary optical fiber mounted to the mounting cylinder and having an inclined end face, a rotary collimating lens mounted to the mounting cylinder and disposed with a given distance from the inclined end face, and a rotation actuating device for rotating said mounting cylinder. The central axes of the stationary and rotary optical fibers are offset from or inclined with respect to a central axis of rotation of the mounting cylinder to reduce attenuation of returning light from the object.
    • 光学旋转适配器与用于获取测量对象的光学断层图像的光学层析成像系统一起使用。 适配器包括固定套筒,由固定套筒支撑并具有倾斜端面的固定光纤,与倾斜端面间隔给定距离的固定准直透镜,相对于固定套筒可转动地安装的安装筒, 安装在安装筒上的旋转光纤,具有倾斜端面,安装在安装筒上并与倾斜端面一定距离设置的旋转准直透镜,以及用于旋转安装筒的旋转致动装置。 固定和旋转光纤的中心轴相对于安装圆筒的中心旋转轴线偏移或倾斜,以减少来自物体的返回光的衰减。
    • 5. 发明申请
    • OPTICAL CONNECTOR AND AN OPTICAL TOMOGRAPHIC IMAGING SYSTEM USING THE SAME
    • 光学连接器和使用该光学连接器的光学图像成像系统
    • US20090135429A1
    • 2009-05-28
    • US12324341
    • 2008-11-26
    • Tadashi MASUDA
    • Tadashi MASUDA
    • G01B9/02G02B6/28
    • G02B6/327G01N21/4795G02B6/3818G02B6/3826G02B6/3831G02B6/3851G02B6/3853
    • The optical connector includes a holder unit, a first optical fiber fixedly supported by the holder unit and having an inclined end face, a first collimating lens spaced from the inclined end face, a mounting unit supported relative to the holder unit, a second optical fiber disposed opposite the first collimating lens and having an inclined end face, a second collimating lens disposed between the first collimating lens and the second optical fiber and spaced from the inclined end face of the second optical fiber, wherein an optical transmission system comprising the first optical fiber and the first collimating lens is symmetric to an optical transmission system comprising the second optical fiber and the second collimating lens with respect to a plane perpendicular to the optical axis.
    • 光连接器包括保持器单元,由保持器单元固定地具有倾斜端面的第一光纤,与倾斜端面间隔开的第一准直透镜,相对于保持器单元支撑的安装单元,第二光纤 与第一准直透镜相对设置并且具有倾斜端面,设置在第一准直透镜和第二光纤之间并与第二光纤的倾斜端面间隔开的第二准直透镜,其中包括第一光学透镜 光纤和第一准直透镜相对于垂直于光轴的平面与包括第二光纤和第二准直透镜的光传输系统对称。