中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.013 seconds)

    Blood-vessel recognizing method and blood-vessel recognizing device
    1.
    发明授权
    Blood-vessel recognizing method and blood-vessel recognizing device 有权

    公开(公告)号：US11553878B2

    公开(公告)日：2023-01-17

    申请号：US16775534

    申请日：2020-01-29

    Applicant: OLYMPUS CORPORATION

    Inventor： Takeshi Watanabe

    IPC: A61B5/00 ,  A61B5/026 ,  A61B5/107 ,  A61B90/30

    Abstract: A blood-vessel recognizing method for recognizing blood vessels present in biological tissue, the method including: obtaining real-time Doppler spectra on the basis of time waveforms data of intensities of scattered light generated in the biological tissue due to irradiation with laser light; calculating average frequencies of the real-time Doppler spectra; correcting the calculated average frequencies on the basis of peak intensities of the real-time Doppler spectra; and determining whether or not blood vessels are present in regions of the biological tissue irradiated with the laser light on the basis of the corrected average frequencies.

    Objective optical system
    2.
    发明授权
    Objective optical system 有权

    公开(公告)号：US10016119B2

    公开(公告)日：2018-07-10

    申请号：US15421754

    申请日：2017-02-01

    Applicant: OLYMPUS CORPORATION

    Inventor： Takeshi Watanabe ,  Tadashi Hirata

    IPC: G02B9/64 ,  A61B1/00 ,  G02B21/02 ,  G02B23/24 ,  A61B90/20

    CPC classification number: A61B1/00188 ,  A61B1/00096 ,  A61B90/20 ,  G02B9/64 ,  G02B21/02 ,  G02B23/2407

    Abstract: Provided is an objective optical system composed of, in order from an object side, a first and a second groups, the first group including: a positive and single lens having a flat surface on an object side and a convex surface directed toward an image plane; a positive and single lens having a convex surface directed toward an object; a positive lens in which a convex lens having a flat surface directed toward the object and a negative lens are cemented, and the second group including: a lens in which a negative lens and a double-convex lens are cemented; a lens in which a lens having a concave surface directed toward the object and a lens having a convex surface directed toward the object are cemented; a negative lens in which a negative lens, a positive lens, and a negative lens are cemented; and a positive and compound lens.

    Blood-vessel recognition blood-flow measurement method
    3.
    发明授权
    Blood-vessel recognition blood-flow measurement method 有权

    公开(公告)号：US10856751B2

    公开(公告)日：2020-12-08

    申请号：US15709652

    申请日：2017-09-20

    Applicant: OLYMPUS CORPORATION

    Inventor： Takeshi Watanabe ,  Shintaro Takahashi

    IPC: A61B5/026 ,  A61B5/0285 ,  A61B10/00 ,  A61B8/06 ,  G01S15/89

    Abstract: A blood-vessel recognition blood-flow measurement method including: obtaining a real-time Doppler spectrum by performing a Fourier transform on a temporal waveform of the intensity of scattered light of laser light in a living body; calculating a normalized real-time Doppler spectrum and a normalized zero spectrum; calculating a region spectrum from a subtracted spectrum that is calculated through subtraction of these calculated spectra; calculating a PS reference spectrum by subtracting, from the region spectrum, the maximum value of the region spectrum in a predetermined PS reference region; calculating an average frequency on the basis of a computational spectrum that is obtained by replacing an element of which the PS reference spectrum is negative with zero; and determining a blood flow velocity by comparing the calculated average frequency with a predetermined threshold.

Patent Agency Ranking