公开(公告)号：US20200170569A1

公开(公告)日：2020-06-04

申请号：US16775534

申请日：2020-01-29

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE

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

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.

公开(公告)号：US20170311877A1

公开(公告)日：2017-11-02

申请号：US15650144

申请日：2017-07-14

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Shintaro TAKAHASHI ,  Makoto IGARASHI

IPC: A61B5/00 ,  A61B1/00

CPC classification number: A61B5/489 ,  A61B1/00 ,  A61B5/0075 ,  A61B18/00

Abstract: A surgical treatment device is provided with: an action portion; a light emitting part that radiates laser light onto living tissue; a light receiving part that receives scattered light of the laser light scattered by the living tissue; a light detection unit that detects the intensity of the scattered light received by the light receiving part; a frequency analysis unit that obtains time-series data indicating a temporal change in the intensity of the scattered light detected by the light detection unit, to extract an amount of frequency spectrum shift of the scattered light, included in the time-series data; and a determination unit that determines a feature of a blood vessel in the living tissue on the basis of the amount of frequency spectrum shift.

公开(公告)号：US20220302667A1

公开(公告)日：2022-09-22

申请号：US17735211

申请日：2022-05-03

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Takumi HAYASHI

IPC: H01S3/11 ,  H01S3/067 ,  H01S3/16 ,  A61B18/26

Abstract: Provided is a waveform control device for a laser lithotripsy apparatus including: a processor including hardware, the processor being configured to: pulse a laser beam; change an output of the pulsed laser beam; continuously emit the laser beam until a bubble generated from a laser emission end by an irradiation of the laser beam reaches a crushing target; and after the bubble generated from the laser emission end reaches the crushing target, reduce the output of the laser beam or turn off the irradiation of the laser beam during a period in which there is the bubble between the laser emission end and the crushing target, and the bubble does not couple the laser emission end and the crushing target.

公开(公告)号：US20170231689A1

公开(公告)日：2017-08-17

申请号：US15585515

申请日：2017-05-03

Applicant: OLYMPUS CORPORATION

Inventor： Makoto IGARASHI ,  Takeshi WATANABE ,  Yuji HIRAI ,  Kenichi KIMURA ,  Satoshi HOMMA ,  Hiroshi MIYAJIMA ,  Hiroyoshi YAJIMA

IPC: A61B18/14 ,  A61B90/70 ,  A61B90/30 ,  A61B5/00 ,  A61B17/00

CPC classification number: A61B18/1445 ,  A61B1/00 ,  A61B1/126 ,  A61B5/0084 ,  A61B5/4836 ,  A61B5/489 ,  A61B17/00234 ,  A61B18/22 ,  A61B90/30 ,  A61B90/70 ,  A61B2017/00296 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/0066 ,  A61B2018/00708 ,  A61B2018/00904 ,  A61B2018/00982 ,  A61B2090/306 ,  A61B2218/005 ,  A61B2218/008 ,  A61B2505/05 ,  A61B2562/0238 ,  A61B2562/18 ,  A61F9/00821 ,  G01N21/9009

Abstract: A medical apparatus includes a treatment device configured to be capable of treating a subject by applying energy to the subject, an optical fiber including a light emitting face for emitting light into the subject, the optical fiber being connected to the treatment device, and a shield portion that is disposed in front of the light emitting face of the optical fiber, the shield portion being configured to expose the light emitting face when the treatment device does not perform a treatment operation and to shield the light emitting face when the treatment device performs the treatment operation.

公开(公告)号：US20180055372A1

公开(公告)日：2018-03-01

申请号：US15789004

申请日：2017-10-20

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Makoto IGARASHI ,  Mitsuru NAMIKI ,  Hiroyoshi YAJIMA ,  Yuji HIRAI ,  Satoshi HONDA ,  Kazuhiro TANAKA ,  Yusuke TAKEI

IPC: A61B5/02 ,  A61B1/04 ,  A61B1/00 ,  A61B5/00 ,  G06T7/00 ,  G06T7/70 ,  H04N5/225

CPC classification number: A61B5/02 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/0005 ,  A61B1/04 ,  A61B1/043 ,  A61B5/0084 ,  A61B5/489 ,  A61B5/7278 ,  A61B18/1492 ,  A61N7/00 ,  A61N7/022 ,  G06K2209/051 ,  G06T7/0012 ,  G06T7/70 ,  G06T2207/30101 ,  G06T2207/30204 ,  H04N5/2256 ,  H04N2005/2255

Abstract: An image processing apparatus including: an image acquisition device for observing a living body; a blood vessel recognition device that irradiates the living body with an exploration laser beam and that recognizes a blood vessel; an arithmetic operation unit that calculates a first laser spot position on a first frame acquired by the image acquisition device when the blood vessel is recognized and that adds a mark corresponding to the first laser spot to a position on a second frame corresponding to the first frame, the second frame being acquired at a time different from the time of the first frame; and a display unit for displaying, on an image acquired by the image acquisition device, a plurality of the marks added by the arithmetic operation unit as a result of the blood vessel being recognized at a plurality of different times.

公开(公告)号：US20180008152A1

公开(公告)日：2018-01-11

申请号：US15709652

申请日：2017-09-20

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Shintaro TAKAHASHI

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

CPC classification number: A61B5/026 ,  A61B5/0261 ,  A61B5/0285 ,  A61B8/06 ,  A61B10/00 ,  G01S15/8979

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.

公开(公告)号：US20170231553A1

公开(公告)日：2017-08-17

申请号：US15586337

申请日：2017-05-04

Applicant: OLYMPUS CORPORATION

Inventor： Makoto IGARASHI ,  Takeshi WATANABE ,  Yuji HIRAI ,  Kenichi KIMURA ,  Satoshi HOMMA ,  Hiroshi MIYAJIMA

IPC: A61B5/00 ,  A61B5/0285 ,  A61B1/313 ,  A61B1/00 ,  A61B18/00 ,  A61B5/02 ,  A61B5/026

CPC classification number: A61B5/489 ,  A61B1/00009 ,  A61B1/3132 ,  A61B5/02007 ,  A61B5/02042 ,  A61B5/0261 ,  A61B5/0285 ,  A61B18/00 ,  A61B2017/00066 ,  A61B2017/00119 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00958 ,  A61B2090/306

Abstract: A medical apparatus includes a laser light source for blood vessel sensing configured to irradiate illumination light for detecting a blood vessel, a photodetector configured to detect return light of the illumination light, an optical-characteristic processing circuit configured to calculate, based on a detection result of the return light, at least one of information concerning scattering of blood cells in the blood vessel and information concerning absorption by blood, a blood-vessel-characteristic determination circuit configured to determine a characteristic of the blood vessel based on an optical characteristic calculation result, and a laser light source for guide configured to irradiate, based on the determined characteristic of the blood vessel, notification light on an irradiation near region including an irradiation region.

公开(公告)号：US20170188800A1

公开(公告)日：2017-07-06

申请号：US15466173

申请日：2017-03-22

Applicant: OLYMPUS CORPORATION

Inventor： Yuchun FU ,  Makoto IGARASHI ,  Hiroyoshi YAJIMA ,  Mitsuru NAMIKI ,  Takeshi WATANABE

IPC: A61B1/018 ,  A61B1/00 ,  A61B1/06 ,  A61B1/07

CPC classification number: A61B1/018 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00075 ,  A61B1/00096 ,  A61B1/00154 ,  A61B1/00165 ,  A61B1/0607 ,  A61B1/0661 ,  A61B1/07 ,  A61B90/30

Abstract: A medical sheath is a medical sheath to be used in combination with a medical device including an insertion portion that can be inserted into a body cavity of a subject via a trocar, the medical sheath including: a sheath body formed in a shape that can be inserted to and removed from a through hole through in the trocar; a channel provided in the sheath body, the channel having a shape that enables insertion and removal of the insertion portion; a first optical transmission section provided in the sheath body, the first optical transmission section being provided for guiding illuminating light; and a second optical transmission section that is provided in the sheath body and is separate from the first optical transmission section, the second optical transmission section being provided for guiding return light generated upon application of the illuminating light from the first optical transmission section.

公开(公告)号：US20170135564A1

公开(公告)日：2017-05-18

申请号：US15421754

申请日：2017-02-01

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Tadashi HIRATA

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

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.

公开(公告)号：US20180140174A1

公开(公告)日：2018-05-24

申请号：US15860740

申请日：2018-01-03

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi WATANABE ,  Mitsuru NAMIKI ,  Kenichi KIMURA

IPC: A61B1/06 ,  A61B1/00 ,  A61B1/07 ,  A61B5/00 ,  A61B1/04

CPC classification number: A61B1/063 ,  A61B1/00006 ,  A61B1/00045 ,  A61B1/00165 ,  A61B1/04 ,  A61B1/0669 ,  A61B1/07 ,  A61B1/3137 ,  A61B5/0059 ,  A61B5/02007 ,  A61B5/107 ,  A61B5/489 ,  A61B2505/05

Abstract: Unnecessary emission of strong laser light is automatically prevented. Provided is a blood-vessel recognition system including: a laser-light source; a blood-vessel recognition probe that has a probe body that is inserted into a body and a laser-light emitting unit that is provided on the probe body and that emits laser light supplied from the laser-light source; an in-use-state determining unit that determines whether the blood-vessel recognition probe is in an in-use state in which the laser light emitted from the laser-light emitting unit is radiated onto living tissue in the body; and a control unit that controls the laser-light source on the basis of a determination result obtained by the in-use-state determining unit, such that the intensity of the laser light is reduced when the blood-vessel recognition probe is not in the in-use state, compared with when the blood-vessel recognition probe is in the in-use state.