公开(公告)号：US20190258050A1

公开(公告)日：2019-08-22

申请号：US16403830

申请日：2019-05-06

申请人： OLYMPUS CORPORATION

发明人： Ken FUJINUMA ,  Yuhei TAKATA

IPC分类号： G02B26/10 ,  G02B23/24 ,  A61B1/00 ,  A61B1/07 ,  H04N5/235

摘要： A scanning-type image acquisition device includes: drivers that respectively vibrate in an x direction and a y direction that are perpendicular to a longitudinal axis of an optical fiber that guides illumination light from a light source and cause a tip of the optical fiber to be spirally scanned on a subject; a drive-signal generating circuit that generates drive signals for driving the drive units; an adjustment section that adjusts the drive signals generated by the drive-signal generating circuit and generates position reference data; a photodetector that detects scattered light of the illumination light at each scanning position of an illumination light spot on the subject due to the drivers; and an image generating circuit that generates an image by arranging intensity values of the scattered light detected by the photodetector in pixels in accordance with the position reference data output from the adjustment section.

公开(公告)号：US20230404669A1

公开(公告)日：2023-12-21

申请号：US18242112

申请日：2023-09-05

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA ,  Takumi HAYASHI

IPC分类号： A61B18/26 ,  G02B26/10

CPC分类号： A61B18/26 ,  G02B26/103 ,  A61B2018/263 ,  A61B2018/00773

摘要： A laser scanning method that is a method for scanning a laser beam emitted from a distal end of an optical fiber in a liquid medium. The laser scanning method includes emission of a pulsed laser beam from the distal end in the medium, wherein the emission of the pulsed laser beam includes: generating a bubble that is to come into contact with the distal end and an operation member by means of the laser beam emitted from the distal end, the operation member being disposed only at one side of the distal end in a radial direction of the optical fiber; and contracting the bubble by stopping the emission of the laser beam from the distal end.

公开(公告)号：US20190261837A1

公开(公告)日：2019-08-29

申请号：US16406149

申请日：2019-05-08

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： A61B1/00 ,  A61B1/06 ,  A61B1/045 ,  G02B23/24 ,  G02B23/26

摘要： An optical scanning endoscope device includes: a laser element; an optical fiber that guides laser light from the laser element; a first detector that detects a guided light amount of the laser light in the optical fiber; a second detector that detects light from a subject and outputs a detection signal; a first calculator that calculates an optical coupling ratio between the laser element and the optical fiber on the basis of the guided light amount; a second calculator that calculates a degradation ratio of the laser element on the basis of the guided light amount; a first adjuster that adjusts the magnitude of the detection signal on the basis of the optical coupling ratio; and a second adjuster that adjusts the output light amount of the laser light from the laser element on the basis of the degradation ratio.

公开(公告)号：US20230284356A1

公开(公告)日：2023-09-07

申请号：US18115532

申请日：2023-02-28

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： H05B47/105 ,  A61B18/24

CPC分类号： H05B47/105 ,  A61B18/245 ,  A61B2018/2025

摘要： A control device, comprising: a processor including hardware, the processor being configured to: control a laser light source to emit a first instance of a laser light, calculate an overlap information related to an overlap area of an irradiation area of an irradiation target that is irradiated with the first instance of the laser light, and control the laser light source to emit a second instance of the laser light based on the overlap information.

公开(公告)号：US20230083127A1

公开(公告)日：2023-03-16

申请号：US17988035

申请日：2022-11-16

申请人： OLYMPUS CORPORATION

发明人： Takumi HAYASHI ,  Yuhei TAKATA

IPC分类号： A61B18/26

摘要： A laser light irradiation system that irradiates a stone in a body with laser light to cause the stone to be dust, the laser light irradiation system including a laser fiber that emits the laser light, and a processor configured to control a frequency of the laser light emitted from the laser fiber, wherein the processor is configured to switch between first laser light of a first frequency and second laser light of a second frequency such that the second laser light is emitted at least before or after an emission timing of the first laser light, the first laser light generating a water flow that pulls the stone toward the laser fiber, the second laser light generating a water flow that stirs the stone.

公开(公告)号：US20180309915A1

公开(公告)日：2018-10-25

申请号：US16010655

申请日：2018-06-18

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： H04N5/225

CPC分类号： H04N5/2256 ,  A61B1/00 ,  A61B1/06 ,  H04N2005/2255

摘要： An optical scanning observation apparatus includes a laser light source driver configured to emit pulsed laser light of different wavelengths sequentially from a plurality of laser light sources, a scanning unit, a laser light detector, an image processor, and a controller configured to control the laser light source driver so that a detection signal obtained by irradiation of the pulsed laser light of one wavelength and outputted from the laser light detector does not have a detection signal generated by irradiation of the pulsed laser light of a different wavelength substantially mixed therein.

公开(公告)号：US20180303321A1

公开(公告)日：2018-10-25

申请号：US16010608

申请日：2018-06-18

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： A61B1/00 ,  A61B1/06 ,  A61B1/07 ,  A61B1/04

CPC分类号： A61B1/00172 ,  A61B1/00 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00165 ,  A61B1/042 ,  A61B1/063 ,  A61B1/0669 ,  A61B1/07

摘要： A light-scanning endoscope is provided with: a light-scanner that causes an optical fiber to be vibrated; a controller that causes light to be emitted from the optical fiber with the same phase as the vibrations; an adjusting unit that adjusts a distortion correction amount on the basis of a shape of a row of irradiation positions of the light on an imaging subject; and a phase correcting unit that corrects the phase in which the light is emitted on the basis of the adjusted distortion correction amount.

公开(公告)号：US20230404383A1

公开(公告)日：2023-12-21

申请号：US18242115

申请日：2023-09-05

申请人： OLYMPUS CORPORATION

发明人： Takumi HAYASHI ,  Yuhei TAKATA

IPC分类号： A61B1/07 ,  A61B1/06

CPC分类号： A61B1/07 ,  A61B1/0655

摘要： A laser scanning method including emitting a pulsed laser beam from a distal end of an optical fiber in a liquid medium during a first period, the pulsed laser beam being emitted for generating a bubble at the distal end, stopping emission of the pulsed laser beam from the distal end during a second period, wherein the first period is a period for moving the optical fiber closer toward an operation member disposed parallel to the optical fiber by utilizing contraction of the bubble that comes into contact with or close to the operation member, and wherein the second period is a period for moving the optical fiber away from the operation member.

公开(公告)号：US20220296300A1

公开(公告)日：2022-09-22

申请号：US17735381

申请日：2022-05-03

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： A61B18/26 ,  B23K26/40 ,  B23K26/08 ,  B23K26/0622 ,  A61P13/12

摘要： Provided is an output adjustment device for a laser lithotripsy apparatus including: a processor including hardware, the processor being configured to: pulse a laser beam; adjust an output of the pulsed laser beam; monotonically increase the output of the laser beam as a first period to generate a bubble binding body containing a plurality of bubbles from a laser emission end; monotonically decrease the output of the laser beam with a gradient larger than a predetermined gradient as a second period following the first period to cause the bubble binding body to disappear so that a crushing target is attracted to the laser emission end; and before the bubble binding body is generated, raise a liquid temperature in a region where the bubble binding body is generated by generating the bubbles and causing the bubbles to disappear.

公开(公告)号：US20180129033A1

公开(公告)日：2018-05-10

申请号：US15862835

申请日：2018-01-05

申请人： OLYMPUS CORPORATION

发明人： Yuhei TAKATA

IPC分类号： G02B23/26 ,  A61B1/00 ,  G02B23/24 ,  G02B26/10 ,  A61B1/07

CPC分类号： G02B23/26 ,  A61B1/00006 ,  A61B1/00057 ,  A61B1/00165 ,  A61B1/00172 ,  A61B1/045 ,  A61B1/07 ,  G01N2201/0697 ,  G02B23/2469 ,  G02B23/2476 ,  G02B26/103 ,  H04N3/04 ,  H04N9/04521 ,  H04N2005/2255

摘要： An optical-scanning observation device including: a laser output unit that outputs a laser beam; a light scanner that radiates the laser beam on an object while scanning; a light detector that detects reflected light of the laser beam; and a controller that sets a detection delay time on the basis of a propagation delay time from when the laser beam is output from the laser output unit to when the reflected light is detected by the light detector and that controls the laser output unit and the light detector such that the light detector detects the reflected light after the detection delay time has elapsed since the laser beam is output from the laser output unit.