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    Vacuum loss detection during laser eye surgery
    11.
    发明授权
    Vacuum loss detection during laser eye surgery 有权

    公开(公告)号：US10195085B2

    公开(公告)日：2019-02-05

    申请号：US14885907

    申请日：2015-10-16

    Applicant: OptiMedica Corporation

    Inventor： Michael A. Campos ,  Javier G. Gonzalez ,  Teresa G. Miller-Gadda

    IPC: A61B18/20 ,  A61F9/009 ,  A61F9/00 ,  A61F9/008

    Abstract: A laser eye surgery system that has a patient interface between the eye and the laser system relying on suction to hold the interface to the eye. The patient interface may be a liquid-filled interface, with liquid used as a transmission medium for the laser. During a laser procedure various inputs are monitored to detect a leak. The inputs may include a video feed of the eye looking for air bubbles in the liquid medium, the force sensors on the patient interface that detect patient movement, and vacuum sensors directly sensing the level of suction between the patient interface and the eye. The method may include combining three monitoring activities with a Bayesian algorithm that computes the probabilities of an imminent vacuum loss event.

    METHODS AND SYSTEMS FOR CORNEAL TOPOGRAPHY, BLINK DETECTION AND LASER EYE SURGERY
    12.
    发明申请
    METHODS AND SYSTEMS FOR CORNEAL TOPOGRAPHY, BLINK DETECTION AND LASER EYE SURGERY 审中-公开

    公开(公告)号：US20180357771A1

    公开(公告)日：2018-12-13

    申请号：US16004292

    申请日：2018-06-08

    Applicant: OPTIMEDICA CORPORATION

    Inventor： Javier G. Gonzalez

    IPC: G06T7/20 ,  G06T7/70 ,  A61B3/107 ,  A61B3/103 ,  G06T7/00 ,  A61F9/008 ,  A61B3/14 ,  G06K9/46

    Abstract: A method of blink detection in a laser eye surgical system includes providing a topography measurement structure having a geometric marker. The method includes bringing the topography measurement structure into a position proximal to an eye such that light traveling from the geometric marker is capable of reflecting off a refractive structure of the eye of the patient, and also detecting the light reflected from the structure of the eye for a predetermined time period while the topography measurement structure is at the proximal position. The method further includes converting the light reflected from the surface of the eye into image data and analyzing the image data to determine whether light reflected from the geometric marker is present is in the reflected light, wherein if the geometric marker is determined not to be present, the patient is identified as having blinked during the predetermined time.

    OPHTHALMIC LASER SURGICAL SYSTEM AND METHOD IMPLEMENTING SIMULTANEOUS LASER TREATMENT AND OCT MEASUREMENT
    16.
    发明申请
    OPHTHALMIC LASER SURGICAL SYSTEM AND METHOD IMPLEMENTING SIMULTANEOUS LASER TREATMENT AND OCT MEASUREMENT 审中-公开

    公开(公告)号：US20200261267A1

    公开(公告)日：2020-08-20

    申请号：US16278029

    申请日：2019-02-15

    Applicant: OPTIMEDICA CORPORATION

    Inventor： Michael J. Simoneau ,  David A. Dewey ,  Javier G. Gonzalez

    IPC: A61F9/008 ,  A61B3/10

    Abstract: In an ophthalmic laser surgical system, a real-time optical coherence tomography (OCT) measurement method acquires OCT data during laser treatment. The treatment laser beam and OCT sample beam are generated simultaneously, and the optical delivery system scans them simultaneously in the eye tissue, where the focus of the treatment laser beam and the focus of the OCT beam coincide with each other in space. While both beams simultaneously scanned in the eye tissue, the OCT device detects returned OCT light from the sample during a data acquisition period, and generates an OCT A-scan based on the detected OCT light. Based on the A-scan, a controller determines a structure of the eye in a depth direction relative to the focus of the OCT beam, and controls the operations ophthalmic laser surgical system accordingly. One exemplary application is the formation of an arcuate corneal incision in cataract surgery.

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