Laser eye surgery lens fragmentation

    公开(公告)号:US10327953B2

    公开(公告)日:2019-06-25

    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.

    CLOSED-LOOP LASER EYE SURGERY TREATMENT
    33.
    发明申请
    CLOSED-LOOP LASER EYE SURGERY TREATMENT 审中-公开
    闭环激光眼部手术治疗

    公开(公告)号:US20160228296A1

    公开(公告)日:2016-08-11

    申请号:US14968783

    申请日:2015-12-14

    Abstract: A laser eye surgery system includes a laser to generate a laser beam. A topography measurement system measures corneal topography. A processor is coupled to the laser and the topography measurement system, the processor embodying instructions to measure a first corneal topography of the eye. A first curvature of the cornea is determined. A target curvature of the cornea that treats the eye is determined. A first set of incisions and a set of partial incisions in the cornea smaller than the first set of incisions are determined. The set of partial incisions is incised on the cornea by the laser beam. A second corneal topography is measured. A second curvature of the cornea is determined. The second curvature is determined to differ from the target curvature and a second set of incisions are determined. The second set of incisions is incised on the cornea.

    Abstract translation: 激光眼手术系统包括用于产生激光束的激光。 地形测量系统测量角膜地形。 处理器耦合到激光器和地形测量系统,该处理器体现了用于测量眼睛的第一角膜形貌的指令。 确定角膜的第一曲率。 确定治疗眼睛的角膜的目标曲率。 确定第一组切口和一组小于第一组切口的角膜部分切口。 通过激光束在角膜上切割部分切口。 测量第二个角膜地形。 确定角膜的第二曲率。 第二曲率被确定为不同于目标曲率,并且确定第二组切口。 第二组切口切开角膜。

    AUTOMATIC PATIENT POSITIONING WITHIN A LASER EYE SURGERY SYSTEM
    34.
    发明申请
    AUTOMATIC PATIENT POSITIONING WITHIN A LASER EYE SURGERY SYSTEM 审中-公开
    自动患者在激光眼手术系统中的定位

    公开(公告)号:US20160106581A1

    公开(公告)日:2016-04-21

    申请号:US14885824

    申请日:2015-10-16

    Abstract: A laser eye surgery system produces a treatment beam that includes a plurality of laser pulses. An optical coherence tomography (OCT) subsystem produces a source beam used to locate one or more structures of an eye. The OCT subsystem is used to sense the distance between a camera objective on the underside of the laser eye surgery system and the patient's eye. Control electronics compare the sensed distance with a pre-determined target distance, and reposition a movable patient support toward or away the camera objective until the sensed distance is at the pre-determined target distance. A subsequent measurement dependent upon the spacing between the camera objective and the patient's eye is performed, such as determining the astigmatic axis by observing the reflection of a plurality of point source LEDs arranged in concentric rings off the eye.

    Abstract translation: 激光眼手术系统产生包括多个激光脉冲的治疗束。 光学相干断层扫描(OCT)子系统产生用于定位眼睛的一个或多个结构的源束。 OCT子系统用于感测激光眼手术系统下侧的相机物镜与患者眼睛之间的距离。 控制电子装置将感测到的距离与预定的目标距离进行比较,并将可移动的患者支架重新定位到或离开相机物镜,直到感测到的距离处于预定的目标距离。 执行取决于相机物镜和患者眼睛之间的间隔的随后测量,例如通过观察以眼睛中同心环排列的多个点光源LED的反射来确定散光轴。

    CONFOCAL LASER EYE SURGERY SYSTEM
    35.
    发明申请
    CONFOCAL LASER EYE SURGERY SYSTEM 审中-公开
    眼科激光眼部手术系统

    公开(公告)号:US20150272782A1

    公开(公告)日:2015-10-01

    申请号:US14576593

    申请日:2014-12-19

    Abstract: A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.

    Abstract translation: 激光手术系统包括光源,眼睛接口装置,扫描组件,共焦检测组件和优选共焦旁路组件。 光源产生电磁波束。 扫描组件将电磁波束的焦点扫描到眼睛内的不同位置。 光路将电磁波从光源传播到焦点,并且还沿着光路的至少一部分将从焦点位置反射的电磁波束的一部分传播回传播。 光路包括与共焦检测组件相关联的光学元件,其将一部分反射的电磁辐射转移到传感器。 传感器产生表示从焦点位置反射的电磁波的强度的强度信号。 共焦旁路组件沿着光学元件周围的转向光路可逆地转移电磁束。

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