Apparatus for stabilizing second harmonic pulse output in a laser system operating by pulses
    41.
    发明授权
    Apparatus for stabilizing second harmonic pulse output in a laser system operating by pulses 有权
    用于在通过脉冲操作的激光系统中稳定二次谐波脉冲输出的装置

    公开(公告)号:US08761214B2

    公开(公告)日:2014-06-24

    申请号:US13266706

    申请日:2010-04-28

    IPC分类号: H01S3/10

    摘要: The present invention relates to an apparatus for stabilizing second harmonic wave pulse output in a laser system operating by pulses. The apparatus of the present invention comprises: a pulse laser oscillating unit (110) which outputs a laser pulse; a nonlinear crystal (120) which converts the laser pulse of a first wavelength output by the pulse laser oscillation unit (110) into a second harmonic wave with a value that is half of the first wavelength, and outputs the converted second harmonic wave; and an optical absorption filter (130) which absorbs a portion of the energy of the converted second harmonic laser pulse from the nonlinear crystal (120) to output the second harmonic wave with a lower energy. The thus-configured apparatus of the present invention supplies a fundamental wave in a stable state and having a small PTP value and high level energy to the nonlinear crystal, in order to obtain the second harmonic wave which is in a more stable state and has a small PTP value and a variety of energies.

    摘要翻译: 本发明涉及一种用于在通过脉冲操作的激光系统中稳定二次谐波脉冲输出的装置。 本发明的装置包括:输出激光脉冲的脉冲激光振荡单元(110); 将由脉冲激光振荡单元(110)输出的第一波长的激光脉冲转换成具有第一波长的一半的二次谐波的非线性晶体(120),并输出转换的二次谐波; 以及从非线性晶体(120)吸收转换的二次谐波激光脉冲的能量的一部分的光吸收滤光器(130),以输出具有较低能量的二次谐波。 本发明的这样构成的设备向非线性晶体提供稳定状态的基波并具有小的PTP值和高能量的能量,以便获得处于更稳定状态的二次谐波 小PTP值和各种能量。

    LASER DEVICE
    43.
    发明公开
    LASER DEVICE 审中-公开

    公开(公告)号:US20240210713A1

    公开(公告)日:2024-06-27

    申请号:US18392955

    申请日:2023-12-21

    IPC分类号: G02B27/09 H01S3/094 H01S3/23

    摘要: Disclosed is a laser device including: a laser generator configured to generate a laser beam; a first amplifier configured to amplify energy of the laser beam; and a first laser beam width adjuster comprising an aperture disposed between the laser generator and the first amplifier to limit a width of the laser beam. The aperture includes: a light transmissive portion formed to be smaller than the width of the laser beam so as to allow a central part of the laser beam to pass through; a light shielding portion formed to encompass the light transmissive portion to block a periphery of the laser beam; and a soft edge portion formed between the light transmissive portion and the light shielding portion, so that a light transmittance of the light transmissive portion gradually decreases to a light transmittance of the light shielding portion.

    LASER APPARATUS
    44.
    发明公开
    LASER APPARATUS 审中-公开

    公开(公告)号:US20240072509A1

    公开(公告)日:2024-02-29

    申请号:US17908743

    申请日:2020-12-10

    摘要: Disclosed is a laser apparatus including a laser generator comprising a laser medium, a pumping light source providing light to the laser medium, a first mirror and a second mirror arranged with the laser medium therebetween, and configured to generate a laser beam of a first wavelength, a secondary harmonic wave generator configured to generate a laser beam of a second wavelength from the laser beam of a first wavelength, a light modulator arranged between the laser medium and the secondary harmonic wave generator and configured to adjust a pulse width of the laser beam of a first wavelength, and an output adjustor configured to adjust an output of the laser beam of a second wavelength generated in the secondary harmonic wave generator.

    DEVICE FOR ACQUIRING FUNCTIONAL IMAGE OF TISSUE AND METHOD FOR GENERATING SAME

    公开(公告)号:US20230066464A1

    公开(公告)日:2023-03-02

    申请号:US17797861

    申请日:2021-01-29

    发明人: Bong Kyun KIM

    IPC分类号: A61B5/00

    摘要: The present invention discloses a device for acquiring a functional image of tissue and a method for acquiring a functional image by using same, the device comprising: a light source for irradiating a tissue to be imaged with coherent light; an image acquisition unit for acquiring an image of a speckle pattern which is formed by scattering the light emitted from the light source over the tissue, and acquiring multiple images having different exposure times; an image processing unit for generating a functional image of the tissue on the basis of the multiple images acquired by the image acquisition unit; and a control unit for adjusting the light quantity of the light emitted to the tissue such that the multiple images having different exposure times have brightness values in a common range, and controlling the operation of the image acquisition unit.

    MEDICAL RF APPARATUS AND A METHOD FOR CONTROLLING THE SAME

    公开(公告)号:US20230054321A1

    公开(公告)日:2023-02-23

    申请号:US18047594

    申请日:2022-10-18

    IPC分类号: A61B18/14 A61B18/12

    摘要: A medical RF apparatus using an RF pulse and a method of controlling the medical RF apparatus are provided. The medical RF apparatus includes an RF generator, which generates a test pulse for detecting characteristics of tissue, a monitoring unit, which monitors the change in the information on the tissue state while the test pulse is transmitted to the tissue, and a measurement unit, which determines the tissue characteristics of a patient by comparing the values monitored in the monitoring unit with the reference data.

    Medical RF apparatus and a method for controlling the same

    公开(公告)号:US11523863B2

    公开(公告)日:2022-12-13

    申请号:US16041593

    申请日:2018-07-20

    IPC分类号: A61B18/14 A61B18/12 A61B18/00

    摘要: Disclosed herein is a medical RF apparatus using an RF pulse, comprising an RF generator, which generates a test pulse for detecting characteristics of tissue; a monitoring unit, which monitors the change in the information on the tissue state while the test pulse is transmitted to the tissue; and a measurement unit, which determines the tissue characteristics of a patient by comparing the values monitored in the monitoring unit with the reference data; and a method for controlling the same.

    OPTICAL OUTPUT CONTROL DEVICE AND LASER DEVICE HAVING SAME

    公开(公告)号:US20220280234A1

    公开(公告)日:2022-09-08

    申请号:US17597848

    申请日:2020-08-28

    发明人: Hee Chul Lee

    IPC分类号: A61B18/20

    摘要: According to an embodiment of the present disclosure, an optical output control device includes: a wavelength-selective reflector configured to reflect light in a predetermined wavelength band and incident at a reference angle θc; and a driving unit configured to rotate the wavelength-selective reflector to adjust an angle of incidence of light incident on the wavelength-selective reflector.

    RF THERAPEUTIC DEVICE AND METHOD FOR CONTROLLING SAME

    公开(公告)号:US20220080215A1

    公开(公告)日:2022-03-17

    申请号:US17419688

    申请日:2019-12-09

    发明人: Kwang Chon KO

    IPC分类号: A61N1/40 A61N1/05 A61N1/06

    摘要: The present invention relates to an RF therapeutic device and a method for controlling same, the RF therapeutic device comprising: an RF generation unit for generating RF energy; a plurality of RF electrodes connected to the RF generation unit through an RF circuit and selectively inserted into body tissue to transfer the RF energy to the body tissue; and a sensing unit for detecting a loss of the RF energy transferred to the body tissue, the loss resulting from the impedance characteristic of the body tissue.

    HANDPIECE, RF TREATMENT DEVICE, AND RF TREATMENT DEVICE CONTROL METHOD

    公开(公告)号:US20220072325A1

    公开(公告)日:2022-03-10

    申请号:US17416316

    申请日:2019-12-06

    发明人: Kwang Chon KO

    IPC分类号: A61N1/40 A61H15/02 A61H15/00

    摘要: An RF treatment device according to an embodiment of the present invention comprises a body having an RF generator, and a handpiece connected to the body, wherein the handpiece: includes a rolling member having a plurality of needles formed to protrude, and a body part, which rotatably supports the rolling member while at least some of the plurality of needles are exposed, which transmits, to the rolling member, RF energy transmitted from the RF generator, and which is formed so that the RF energy is transmitted to the rolling member even while the rolling member is rotating; and further includes a speed measurement unit for detecting information related to the speed of the rolling member, and an RF control unit for controlling the output of the RF energy on the basis of information detected by the speed measurement unit.