公开(公告)号：US20230083127A1

公开(公告)日：2023-03-16

申请号：US17988035

申请日：2022-11-16

Applicant: OLYMPUS CORPORATION

Inventor： Takumi HAYASHI ,  Yuhei TAKATA

IPC: A61B18/26

Abstract: 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：US20230404383A1

公开(公告)日：2023-12-21

申请号：US18242115

申请日：2023-09-05

Applicant: OLYMPUS CORPORATION

Inventor： Takumi HAYASHI ,  Yuhei TAKATA

IPC: A61B1/07 ,  A61B1/06

CPC classification number: A61B1/07 ,  A61B1/0655

Abstract: 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：US20230404669A1

公开(公告)日：2023-12-21

申请号：US18242112

申请日：2023-09-05

Applicant: OLYMPUS CORPORATION

Inventor： Yuhei TAKATA ,  Takumi HAYASHI

IPC: A61B18/26 ,  G02B26/10

CPC classification number: A61B18/26 ,  G02B26/103 ,  A61B2018/263 ,  A61B2018/00773

Abstract: 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：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.