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    SIDE-FIRE LASER FIBER HAVING A MOLDED REFLECTIVE SURFACE
    11.
    发明申请
    SIDE-FIRE LASER FIBER HAVING A MOLDED REFLECTIVE SURFACE 有权

    公开(公告)号：US20220323153A1

    公开(公告)日：2022-10-13

    申请号：US17809766

    申请日：2022-06-29

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Honggang YU ,  Rongwei Jason XUAN ,  Jian James ZHANG

    IPC: A61B18/22

    Abstract: A side-fire laser fiber (102) includes an optical fiber (112) having a distal end (116) and a fiber cap (114). The fiber cap is coupled to the distal end of the optical fiber and includes a molded reflective surface (130) and a sealed cavity (132A or 132B). The molded reflective surface defines a wall of the cavity. Laser energy discharged from the distal end along a central axis (124) of the optical fiber is reflected off the molded reflective surface in a direction that is transverse to the central axis.

    SURGICAL LASER SYSTEMS AND LASER LITHOTRIPSY TECHNIQUES
    12.
    发明申请
    SURGICAL LASER SYSTEMS AND LASER LITHOTRIPSY TECHNIQUES 有权

    公开(公告)号：US20220079674A1

    公开(公告)日：2022-03-17

    申请号：US17533653

    申请日：2021-11-23

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Wen-Jui Ray CHIA ,  Rongwei Jason XUAN ,  Thomas C. HASENBERG ,  Jian James ZHANG ,  Steven Yihlih PENG ,  Danop RAJABHANDHARAKS

    IPC: A61B18/26 ,  A61B5/00 ,  A61B1/307 ,  A61B5/20 ,  A61B1/00

    Abstract: A surgical laser system (100) includes a first laser source (140A), a second laser source (140B), a beam combiner (142) and a laser probe (108). The first laser source is configured to output a first laser pulse train (144, 104A) comprising first laser pulses (146). The second laser source is configured to output a second laser pulse train (148, 104B) comprising second laser pulses (150). The beam combiner is configured to combine the first and second laser pulse trains and output a combined laser pulse train (152, 104) comprising the first and second laser pulses. The laser probe is optically coupled to an output of the beam combiner and is configured to discharge the combined laser pulse train.
    In some embodiments, a surgical laser system includes a laser generator (102), a laser probe (108), a stone analyzer (170), and a controller (122). The laser generator is configured to generate laser energy (104) based on laser energy settings (126). The laser probe is configured to discharge the laser energy. The stone analyzer has an output relating to a characteristic of a targeted stone (120). The controller comprises at least one processor configured to determine the laser energy settings based on the output.
    In some embodiments of a method of fragmenting a targeted kidney or bladder stone, a first laser pulse train (144) comprising first laser pulses (146) is generated using a first laser source (140A). A second laser pulse train (148) comprising second laser pulses (150) is generated using a second laser source (140B). The first and second laser pulse trains are combined into a combined laser pulse train (152) comprising the first and second laser pulses. The stone is exposed to the combined laser pulse train using a laser probe (108). The stone is fragmented in response to exposing the stone to the combined laser pulse train.
    In some embodiments of a method of fragmenting a targeted kidney or bladder stone, an output relating to a characteristic of the targeted stone (120) is generated using a stone analyzer (170). Embodiments of the characteristic include an estimated size of the stone, an estimated length of the stone, an estimated composition of the stone, and a vibration frequency measurement of the stone. Laser energy settings (126) are generated based on the output. Laser energy (104) is generated using a laser generator in accordance with the laser energy settings. The stone is exposed to the laser energy using a laser probe (108). The stone is fragmented in response to exposing the stone to the laser energy.
    In some embodiments of a method of fragmenting a targeted kidney or bladder stone (120), the stone is exposed to first laser energy (130) having a first power level using a laser probe (108). The stone is exposed to second laser energy (164) having a second power level using the laser probe, wherein the second power level is higher than the first power level. The stone is fragmented in response to exposing the stone to the second laser energy.

    SURGICAL LASER SYSTEMS AND LASER DEVICES
    13.
    发明申请
    SURGICAL LASER SYSTEMS AND LASER DEVICES 有权

    公开(公告)号：US20220079673A1

    公开(公告)日：2022-03-17

    申请号：US17534964

    申请日：2021-11-24

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Honggang YU ,  Rongwei Jason XUAN ,  Jian James ZHANG ,  David N. HORN ,  Xirong YANG ,  Thomas HASENBERG

    IPC: A61B18/24 ,  A61B18/20 ,  A61B1/06 ,  A61B18/22

    Abstract: A surgical laser system includes an array of laser diodes that are configured to output laser energy, a fiber bundle, a delivery fiber, and a tubular sheath. The fiber bundle includes a plurality of optical fibers and has a proximal end that is configured to receive laser energy from the array of laser diodes. The delivery fiber includes a proximal end that is configured to receive laser energy from a distal end of the fiber bundle. The tubular sheath defines a lumen, in which at least a portion of the delivery fiber is disposed. The tubular sheath is insertable into a working channel of an endoscope or a cystoscope. A distal end of the tubular sheath is configured to deliver laser energy discharged from the delivery fiber into a body of a patient.

    SYSTEMS AND METHODS FOR GENERATING A MODULATED LASER PULSE
    17.
    发明申请
    SYSTEMS AND METHODS FOR GENERATING A MODULATED LASER PULSE 有权

    公开(公告)号：US20220370129A1

    公开(公告)日：2022-11-24

    申请号：US17664300

    申请日：2022-05-20

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Baocheng YANG ,  Xirong YANG ,  Brian CHENG ,  Peter BULL ,  Rongwei Jason XUAN ,  Jian James ZHANG ,  Thomas Charles HASENBERG ,  David PIH

    IPC: A61B18/24 ,  A61B18/26 ,  A61B17/22

    Abstract: A medical laser system for outputting laser pulses includes at least one laser cavity, a rotating mirror, a user interface, and a controller. The controller is configured to receive at least one laser parameter associated with a laser pulse output by the system. The controller is configured to determine an average power level of the laser pulse based on the at least one laser parameter associated with the laser pulse. The controller is configured to determine a pulse width modulation (PWM) control signal based on at least one laser parameter. The controller is configured to generate the laser pulse based on the average power level and the PWM control signal, the laser pulse comprising at least one of a first shape, a second shape, or a third shape. Each of the first shape, the second shape, and the third shape of the laser pulse includes different pulse widths.

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