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    Single fiber illuminated laser probe with high-angle illumination output
    1.
    发明授权
    Single fiber illuminated laser probe with high-angle illumination output 有权

    公开(公告)号：US12135452B2

    公开(公告)日：2024-11-05

    申请号：US17651447

    申请日：2022-02-17

    Applicant: Alcon Inc.

    Inventor： Chenguang Diao ,  Ronald T. Smith ,  Alireza Mirsepassi

    IPC: A61F9/008 ,  G02B6/02

    Abstract: The present disclosure relates to a fiber and a laser probe assembly with a probe tip that houses the fiber. In certain aspects, the fiber includes a core, an outer cladding surrounding the core, and an end face at a proximal and/or distal end of the fiber. The core is configured to transmit a laser light beam while the core and the outer cladding are both configured to transmit an illumination light. In certain aspects, a surface area of the end face corresponding to a cross-section of at least the outer cladding is treated with a roughening or polishing process to modulate an illumination light output angle of the fiber. Using a fiber that is configured to transmit a laser light beam as well as a wide-angle illumination light allows for a more compact fiber and probe tip, allowing for medical procedures that require a narrower probe.

    SINGLE-FIBER ILLUMINATED LASER PROBE WITH ADJUSTABLE COLOR
    2.
    发明公开
    SINGLE-FIBER ILLUMINATED LASER PROBE WITH ADJUSTABLE COLOR 审中-公开

    公开(公告)号：US20230346599A1

    公开(公告)日：2023-11-02

    申请号：US18303058

    申请日：2023-04-19

    Applicant: Alcon Inc.

    Inventor： Chenguang Diao ,  Alireza Mirsepassi ,  Ronald T. Smith

    IPC: A61F9/008

    CPC classification number: A61F9/008

    Abstract: Embodiments of the present disclosure relate to improved surgical laser systems with single-core single-optical fiber-illuminated laser probes, which are configured to propagate both treatment laser beams and illumination light beams. More particularly, embodiments of the present disclosure provide surgical laser systems with color adjustability of illumination light, as well as improved laser probe stiffness.

    Multi-spot laser probe with multiple single-core fibers
    5.
    发明授权
    Multi-spot laser probe with multiple single-core fibers 有权

    公开(公告)号：US11493692B2

    公开(公告)日：2022-11-08

    申请号：US17172342

    申请日：2021-02-10

    Applicant: Alcon Inc.

    Inventor： Chenguang Diao ,  Mark Harrison Farley ,  Alireza Mirsepassi ,  Ronald T. Smith ,  Timothy C. Ryan

    IPC: A61B18/22 ,  A61B18/00 ,  G02B6/26

    Abstract: The present disclosure relates to a laser probe assembly coupled to a laser system through an optical fiber cable. In one example, the laser probe assembly comprises a probe tip coupled to the probe body, the probe tip housing multiple fibers. Each of the multiple fibers comprises a proximal end that couples to the laser system and a distal end that terminates in the probe tip, a single core for transporting a laser beam provided by the laser system, and a cladding surrounding the core. The laser probe assembly also comprises a lens for projecting multiple laser beams provided by the multiple fibers on to a surgical site. Within the probe tip, parts of outer surfaces of portions of any two adjacent fibers of the multiple fibers touch. Also, the multiple fibers are at least substantially centered with respect to the lens.

    Systems and Methods for Illumination Light Source Control
    6.
    发明申请
    Systems and Methods for Illumination Light Source Control 有权

    公开(公告)号：US20240407640A1

    公开(公告)日：2024-12-12

    申请号：US18671091

    申请日：2024-05-22

    Applicant: Alcon Inc.

    Inventor： Ronald T. Smith

    IPC: A61B3/00 ,  A61B90/30

    Abstract: Systems and methods for illumination light source control are provided. One method includes receiving a request to change an illumination output for one or more light sources, determining a total aphakic irradiance, determining a total aphakic irradiance normalized standard deviation, and determining a peak total aphakic irradiance based on the total aphakic irradiance and the total aphakic irradiance normalized standard deviation. The request includes a requested light level. When the peak total aphakic irradiance is less than or equal to an aphakic irradiance limit, the illumination output is changed based on the requested light level. When the peak total aphakic irradiance is greater than the aphakic irradiance limit, the requested light level is reduced until the peak total aphakic irradiance is less than or equal to the aphakic irradiance limit, and the illumination output is changed based on the reduced requested light level.

    OPTICAL FIBER CONNECTOR AND ADAPTER
    7.
    发明公开
    OPTICAL FIBER CONNECTOR AND ADAPTER 审中-公开

    公开(公告)号：US20230181367A1

    公开(公告)日：2023-06-15

    申请号：US18062663

    申请日：2022-12-07

    Applicant: Alcon Inc.

    Inventor： Mark Harrison Farley ,  Chenguang Diao ,  Mark Alan Hopkins ,  Alireza Mirsepassi ,  Timothy C. Ryan ,  Ronald T. Smith ,  Dennis Martin Terenzio

    IPC: A61F9/008 ,  A61B18/22

    CPC classification number: A61F9/00823 ,  A61B18/22 ,  A61B2018/00589

    Abstract: Certain embodiments disclosed herein provide systems and devices for coupling optical fibers with laser surgical systems. In particular, certain aspects provide a push-pull connector and adapter for releasably coupling an optical fiber with a port of a laser surgical system. The connector and adapter facilitate mechanical lateral and rotational guidance of the optical fiber during insertion into the port to ensure proper alignment (e.g., clocking) of the optical fiber’s cores with a laser beam pattern propagated by the laser surgical system. Accordingly, the connector and adaptor enable improved coupling efficiency between the laser beam pattern and one or more cores of the optical fiber, and therefore improved power uniformity between multiple laser beams transmitted through the cores.

    Multi-fiber multi-spot laser probe with simplified tip construction
    8.
    发明授权
    Multi-fiber multi-spot laser probe with simplified tip construction 有权

    公开(公告)号：US11628091B2

    公开(公告)日：2023-04-18

    申请号：US17007066

    申请日：2020-08-31

    Applicant: Alcon Inc.

    Inventor： Chenguang Diao ,  Mark Harrison Farley ,  Alireza Mirsepassi ,  Kambiz Parto ,  Ronald T. Smith

    IPC: A61B18/22 ,  A61F9/008 ,  G02B6/06 ,  G02B6/26 ,  A61B18/20

    Abstract: An example multi-fiber, multi-spot laser probe comprises a plurality of fibers extending from a proximal end of the laser probe to at least near a distal end of the laser probe, where the proximal end of the laser probe is configured to be coupled to a laser source via an adapter interface, and a cannula having a distal end and surrounding the plurality of fibers along at least a portion of the laser probe at or near the distal end of the laser probe, where a distal end of each of the plurality of fibers is angle-polished so that the distal end of each fiber is angled relative to a longitudinal axis of the cannula and relative to a plane perpendicular to the longitudinal axis of the cannula. Additional embodiments employ lensed fibers, a distal window, ball lens, lens array, or faceted wedge.

    OCCLUSION SENSING IN OPHTHALMIC LASER PROBES
    10.
    发明申请
    OCCLUSION SENSING IN OPHTHALMIC LASER PROBES 有权

    公开(公告)号：US20220125640A1

    公开(公告)日：2022-04-28

    申请号：US17647660

    申请日：2022-01-11

    Applicant: Alcon Inc.

    Inventor： Gerald David Bacher ,  Nikki Koe ,  Bruno Lassalas ,  Alireza Mirsepassi ,  Dean Richardson ,  Ronald T. Smith

    IPC: A61F9/008 ,  A61B18/22 ,  G02B27/10

    Abstract: In certain embodiments, a system for sensing occlusions in an optical system includes a first laser source configured to generate optical signals and a set of optical elements arranged to receive the optical signals from the first laser source and to direct the optical signals along a beam path. The system also includes a detector arranged to receive reflections of the optical signals traveling along at least a portion of the beam path and a control system communicably coupled to the detector. The control system is configured to detect, based on signals generated by the detector, reflection signals associated with the reflections of the optical signals, and disable a second laser source based on detection of the reflection signals.

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