Laser eye surgery systems and methods of treating vitreous and ocular floaters

    公开(公告)号:US10555835B2

    公开(公告)日:2020-02-11

    申请号:US15151356

    申请日:2016-05-10

    Abstract: A laser eye surgery system used to treat vitreous bodies includes a laser source, a ranging subsystem, an integrated optical subsystem, and a patient interface assembly. The laser source produces a treatment beam that includes a plurality of laser pulses. The ranging subsystem produces a source beam used to locate one or more structures of an eye. In some embodiments, the ranging subsystem includes an optical coherence tomography (OCT) pickoff assembly that includes a first optical wedge and a second optical wedge separated from the first optical wedge. The OCT pickoff assembly is configured to divide an OCT source beam into a sample beam and a reference beam. The integrated optical subsystem is used to scan the treatment beam and the sample beam. In other embodiments, Purkinje imaging, Scheimpflug imaging, confocal or nonlinear optical microscopy, ultrasound, stereo imaging, fluorescence imaging, or other medical imaging technique may be used.

    SUB-NANOSECOND LASER CATARACT SURGERY SYSTEM
    2.
    发明申请
    SUB-NANOSECOND LASER CATARACT SURGERY SYSTEM 审中-公开
    亚纳米星激光雷达手术系统

    公开(公告)号:US20170000649A1

    公开(公告)日:2017-01-05

    申请号:US14973508

    申请日:2015-12-17

    Inventor: Alexander Vankov

    Abstract: Systems and methods for fragmenting a lens by a laser cataract surgery system includes a sub-nanosecond laser source generating a treatment beam that includes a plurality of laser beam pulses. An optical delivery system is coupled to the sub-nanosecond laser source to receive and direct the treatment beam. A processor is coupled to the sub-nanosecond laser source and the optical delivery system. The processor includes a tangible non-volatile computer readable medium comprising instructions to determine a lens cut pattern for lens fragmentation and determine a plurality of energies of the treatment beam as a linear function of a depth of the lens cut pattern. The treatment beam is output according to the lens cut pattern and the determined energies.

    Abstract translation: 用于通过激光白内障手术系统分割镜片的系统和方法包括产生包括多个激光束脉冲的治疗束的亚纳秒激光源。 光学传输系统耦合到亚纳秒激光源以接收和引导处理光束。 处理器耦合到亚纳秒激光源和光学传递系统。 处理器包括有形的非易失性计算机可读介质,其包括用于确定用于透镜分段的透镜切割图案的指令,并且将治疗光束的多个能量确定为透镜切割图案的深度的线性函数。 根据透镜切割图案和确定的能量输出处理光束。

    SUB-NANOSECOND LASER SURGERY SYSTEM UTILIZING MULTIPLE PULSED LASER BEAMS
    3.
    发明申请
    SUB-NANOSECOND LASER SURGERY SYSTEM UTILIZING MULTIPLE PULSED LASER BEAMS 审中-公开
    亚纳米激光手术系统利用多个激光激光束

    公开(公告)号:US20170000647A1

    公开(公告)日:2017-01-05

    申请号:US15183658

    申请日:2016-06-15

    Abstract: A system for laser ophthalmic surgery includes: a single laser source, under the operative control of a controller, configured to alternatively deliver a first treatment laser beam and a second treatment laser beam. The first treatment laser beam has a pulse energy of 10 to 500 μJ. The second pulsed laser beam has a second pulse energy of about 0.1 to 10 μJ, lower than the first treatment laser beam. An optical system focuses the first treatment laser beam to a first focal spot and directs the first focal spot in a first treatment pattern into a first intraocular target. The optical system also focuses the second treatment laser beam to a second focal spot and direct the second focal spot in a second treatment pattern into a second intraocular target. The first intraocular target and second intraocular target are different.

    Abstract translation: 一种用于激光眼科手术的系统包括:在控制器的操作控制下的单个激光源,被配置为交替地递送第一处理激光束和第二处理激光束。 第一种处理激光束的脉冲能量为10〜500μJ。 第二脉冲激光束具有比第一处理激光束低的约0.1至10μJ的第二脉冲能量。 光学系统将第一处理激光束聚焦到第一焦点,并将第一处理图案中的第一焦斑引导到第一眼内靶中。 光学系统还将第二处理激光束聚焦到第二焦斑并将第二处理图案中的第二焦斑引导到第二眼内靶中。 第一眼内靶和第二眼内靶不同。

    FULL DEPTH LASER OPHTHALMIC SURGICAL SYSTEM, METHODS OF CALIBRATING THE SURGICAL SYSTEM AND TREATMENT METHODS USING THE SAME

    公开(公告)号:US20200038241A1

    公开(公告)日:2020-02-06

    申请号:US16053724

    申请日:2018-08-02

    Abstract: A full depth ophthalmic surgical system includes a femtosecond laser source and an optical coherence tomographer. The system is capable of performing surgical procedures along the entire length of the eye from the cornea to the retina. In one embodiment, the system uses a removeable focal point extension assembly to extend the reach of the focal point location of the laser beam to the vitreous humor of the eye. In another embodiment, the optical system of the ophthalmic surgical system is optimized to focus the laser beam and imaging light in the vitreous humor of the eye. For procedures performed posterior to the lens, a method for calibrating the full depth ophthalmic surgical system uses the focal zone of the optical coherence tomographer beam as a proxy for the focal zone of the femtosecond laser source to. The system can be used to perform treatment in the vitreous humor, including treating floaters and liquification of the vitreous humor.

    METHODS AND SYSTEMS FOR CHANGING A REFRACTIVE PROPERTY OF AN IMPLANTABLE INTRAOCULAR LENS

    公开(公告)号:US20190307554A1

    公开(公告)日:2019-10-10

    申请号:US16375784

    申请日:2019-04-04

    Abstract: A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

    Sub-nanosecond laser surgery system utilizing multiple pulsed laser beams

    公开(公告)号:US11083625B2

    公开(公告)日:2021-08-10

    申请号:US15183658

    申请日:2016-06-15

    Abstract: A system for laser ophthalmic surgery includes: a single laser source, under the operative control of a controller, configured to alternatively deliver a first treatment laser beam and a second treatment laser beam. The first treatment laser beam has a pulse energy of 10 to 500 μJ. The second pulsed laser beam has a second pulse energy of about 0.1 to 10 μJ, lower than the first treatment laser beam. An optical system focuses the first treatment laser beam to a first focal spot and directs the first focal spot in a first treatment pattern into a first intraocular target. The optical system also focuses the second treatment laser beam to a second focal spot and direct the second focal spot in a second treatment pattern into a second intraocular target. The first intraocular target and second intraocular target are different.

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