OPTICAL SURFACE IDENTIFICATION FOR LASER EYE SURGERY

    公开(公告)号:US20170087019A1

    公开(公告)日:2017-03-30

    申请号:US15376491

    申请日:2016-12-12

    Abstract: Systems and methods automatically locate optical surfaces of an eye and automatically generate surface models of the optical surfaces. A method includes OCT scanning of an eye. Returning portions of a sample beam are processed to locate a point on the optical surface and first locations on the optical surface within a first radial distance of the point. A first surface model of the optical surface is generated based on the location of the point and the first locations. Returning portions of the sample beam are processed so as to detect second locations on the optical surface beyond the first radial distance and within a second radial distance from the point. A second surface model of the optical surface is generated based on the location of the point on the optical surface and the first and second locations on the optical surface.

    VACUUM LOSS DETECTION DURING LASER EYE SURGERY
    22.
    发明申请
    VACUUM LOSS DETECTION DURING LASER EYE SURGERY 审中-公开
    激光眼手术时真皮缺损检测

    公开(公告)号:US20160106582A1

    公开(公告)日:2016-04-21

    申请号:US14885907

    申请日:2015-10-16

    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.

    Abstract translation: 激光眼睛手术系统,其眼睛和激光系统之间的患者界面依赖于吸力以将界面保持在眼睛上。 患者界面可以是液体填充的界面,液体用作激光的传输介质。 在激光程序期间,监控各种输入以检测泄漏。 输入可以包括眼睛在液体介质中寻找气泡的视频馈送,在病人界面上的用于检测患者运动的力传感器,以及直接感测患者接口和眼睛之间的吸力水平的真空传感器。 该方法可以包括组合三个监测活动与计算即将来临的真空损失事件的概率的贝叶斯算法。

    Corneal topography measurements and fiducial mark incisions in laser surgical procedures

    公开(公告)号:US10369053B2

    公开(公告)日:2019-08-06

    申请号:US14885213

    申请日:2015-10-16

    Abstract: A method of cataract surgery in an eye of a patient includes identifying a feature selected from the group consisting of an axis, a meridian, and a structure of an eye by corneal topography and forming fiducial mark incisions with a laser beam along the axis, meridian or structure in the cornea outside the optical zone of the eye. A laser cataract surgery system a laser source, a topography measurement system, an integrated optical subsystem, and a processor in operable communication with the laser source, corneal topography subsystem and the integrated optical system. The processor includes a tangible non-volatile computer readable medium comprising instructions to determine one of an axis, meridian and structure of an eye of the patient based on the measurements received from topography measurement system, and direct the treatment beam so as to incise radial fiducial mark incisions.

    VACUUM LOSS DETECTION DURING LASER EYE SURGERY

    公开(公告)号:US20190151145A1

    公开(公告)日:2019-05-23

    申请号:US16253161

    申请日:2019-01-21

    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.

    OPHTHALMIC LASER DELIVERY APPARATUS USING MEMS MICROMIRROR ARRAYS FOR SCANNING AND FOCUSING LASER BEAM

    公开(公告)号:US20180110651A1

    公开(公告)日:2018-04-26

    申请号:US15793851

    申请日:2017-10-25

    Abstract: In a laser delivery system for an ophthalmic laser surgery system, a laser beam scanner employs a single or two MEMS micromirror arrays. Each micromirror in the array is capable of being independently actuated to rotate to desired angles. In one embodiment, one or two micromirror arrays are controlled to scan a laser beam in two directions. In another embodiment, a micromirror array is controlled to both correct optical aberrations in the laser beam and scan the laser beam in two directions. In yet another embodiment, a micromirror array is controlled to cause the laser beam to be focused to multiple focal spots simultaneously and to scan the multiple focal spot simultaneously. The ophthalmic laser surgery system also includes an ultrashort pulse laser, a laser energy control module, focusing optics and other optics, and a controller for controlling the laser beam scanner and other components of the system.

    LASER EYE SURGERY LENS FRAGMENTATION
    28.
    发明申请
    LASER EYE SURGERY LENS FRAGMENTATION 审中-公开
    激光眼手术镜片分割

    公开(公告)号:US20160106588A1

    公开(公告)日:2016-04-21

    申请号:US14885596

    申请日:2015-10-16

    Abstract: A laser eye surgery system includes a laser to generate a laser beam. A spatial measurement system generates a measurement beam and measure a spatial disposition of an eye. A processor is coupled to the laser and the spatial measurement system, the processor comprising a tangible medium embodying instructions to determine a spatial model of the eye in an eye coordinate reference system based on the measurement beam. The spatial model is mapped from the eye coordinate reference system to a machine coordinate reference system. A laser fragmentation pattern is determined based on a plurality of laser fragmentation parameters. The laser fragmentation pattern and the spatial model is rotated by a first rotation angle such that the spatial model is aligned with the reference axis of the machine coordinate reference system and the rotated laser fragmentation pattern is aligned with the corneal incision.

    Abstract translation: 激光眼手术系统包括用于产生激光束的激光。 空间测量系统产生测量光束并测量眼睛的空间布置。 处理器耦合到激光器和空间测量系统,处理器包括实体介质,该有形介质体现了基于测量光束在眼坐标参考系中确定眼睛的空间模型的指令。 空间模型从眼坐标参考系映射到机器坐标参考系。 基于多个激光碎片参数来确定激光碎片图案。 激光碎片图案和空间模型旋转第一旋转角度,使得空间模型与机器坐标参考系统的参考轴对齐,并且旋转的激光碎片图案与角膜切口对准。

    CORNEAL TOPOGRAPHY MEASUREMENTS AND FIDUCIAL MARK INCISIONS IN LASER SURGICAL PROCEDURES
    29.
    发明申请
    CORNEAL TOPOGRAPHY MEASUREMENTS AND FIDUCIAL MARK INCISIONS IN LASER SURGICAL PROCEDURES 审中-公开
    激光手术过程中的角膜测量和FIDUCAL MARK INCISIONS

    公开(公告)号:US20160095752A1

    公开(公告)日:2016-04-07

    申请号:US14885213

    申请日:2015-10-16

    Abstract: A method of cataract surgery in an eye of a patient includes identifying a feature selected from the group consisting of an axis, a meridian, and a structure of an eye by corneal topography and forming fiducial mark incisions with a laser beam along the axis, meridian or structure in the cornea outside the optical zone of the eye. A laser cataract surgery system a laser source, a topography measurement system, an integrated optical subsystem, and a processor in operable communication with the laser source, corneal topography subsystem and the integrated optical system. The processor includes a tangible non-volatile computer readable medium comprising instructions to determine one of an axis, meridian and structure of an eye of the patient based on the measurements received from topography measurement system, and direct the treatment beam so as to incise radial fiducial mark incisions.

    Abstract translation: 在患者眼睛中的白内障手术的方法包括通过角膜形貌识别选自由轴,子午线和眼睛结构组成的组的特征,并且沿着轴线形成具有激光束的基准标记切口,子午线 或在眼睛的光学区域外的角膜中的结构。 激光白内障手术系统,激光源,地形测量系统,集成光学子系统和与激光源,角膜地形子系统和集成光学系统可操作地通信的处理器。 处理器包括有形的非易失性计算机可读介质,其包括用于基于从地形测量系统接收的测量结果来确定患者的眼睛的轴线,子午线和结构之一的指令,以及指导治疗束以便切割径向基准 标记切口。

    CORNEAL TOPOGRAPHY MEASUREMENTS AND FIDUCIAL MARK INCISIONS IN LASER SURGICAL PROCEDURES

    公开(公告)号:US20190350760A1

    公开(公告)日:2019-11-21

    申请号:US16530912

    申请日:2019-08-02

    Abstract: A method of cataract surgery in an eye of a patient includes identifying a feature selected from the group consisting of an axis, a meridian, and a structure of an eye by corneal topography and forming fiducial mark incisions with a laser beam along the axis, meridian or structure in the cornea outside the optical zone of the eye. A laser cataract surgery system a laser source, a topography measurement system, an integrated optical subsystem, and a processor in operable communication with the laser source, corneal topography subsystem and the integrated optical system. The processor includes a tangible non-volatile computer readable medium comprising instructions to determine one of an axis, meridian and structure of an eye of the patient based on the measurements received from topography measurement system, and direct the treatment beam so as to incise radial fiducial mark incisions.

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