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    In situ determination of refractive index of materials
    91.
    发明授权
    In situ determination of refractive index of materials 有权

    公开(公告)号：US10646116B2

    公开(公告)日：2020-05-12

    申请号：US14327839

    申请日：2014-07-10

    Applicant: OptiMedica Corporation

    Inventor： Javier Gonzalez

    IPC: A61B3/103 ,  A61B3/10 ,  A61F9/008 ,  G01M11/02 ,  G01N21/45

    Abstract: A laser eye surgery system focuses light along a beam path to a focal point having a location within a lens of the eye. The refractive index of the lens is determined in response to the location. The lens comprises a surface adjacent a second material having a second refractive index. The beam path extends a distance from the surface to the focal point. The index is determined in response to the distances from the surface to the targeted focal point and from the surface to the actual focal point, which corresponds to a location of a peak intensity of an optical interference signal of the focused light within the lens. The determined refractive index is mapped to a region in the lens, and may be used to generate a gradient index profile of the lens to more accurately place laser beam pulses for incisions.

    FULL DEPTH LASER OPHTHALMIC SURGICAL SYSTEM, METHODS OF CALIBRATING THE SURGICAL SYSTEM AND TREATMENT METHODS USING THE SAME
    92.
    发明申请
    FULL DEPTH LASER OPHTHALMIC SURGICAL SYSTEM, METHODS OF CALIBRATING THE SURGICAL SYSTEM AND TREATMENT METHODS USING THE SAME 审中-公开

    公开(公告)号：US20200038241A1

    公开(公告)日：2020-02-06

    申请号：US16053724

    申请日：2018-08-02

    Applicant: OPTIMEDICA CORPORATION

    Inventor： Jenny Wang ,  Tianheng Wang ,  David Dewey ,  Michael Wiltberger ,  Alexander Vankov ,  Phillip Gooding ,  Georg Schuele

    IPC: A61F9/008

    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.

    Liquid optical interface for laser eye surgery system
    93.
    发明授权
    Liquid optical interface for laser eye surgery system 有权

    公开(公告)号：US10463539B2

    公开(公告)日：2019-11-05

    申请号：US15995013

    申请日：2018-05-31

    Applicant: OPTIMEDICA CORPORATION

    Inventor： Phillip Gooding ,  Christine Beltran ,  Jonathan H. Talamo

    IPC: A61F9/008 ,  A61F9/009 ,  A61M1/00

    Abstract: Apparatus to treat an eye comprises an annular retention structure to couple to an anterior surface of the eye. The retention structure is coupled to a suction line to couple the retention structure to the eye with suction. A coupling sensor is coupled to the retention structure or the suction line to determine coupling of the retention structure to the eye. A fluid collecting container can be coupled to the retention structure to receive and collect liquid or viscous material from the retention structure. A fluid stop comprising a porous structure can be coupled to an outlet of the fluid collecting container to inhibit passage of the liquid or viscous material when the container has received an amount of the liquid or viscous material. The coupling sensor can be coupled upstream of the porous structure to provide a rapid measurement of the coupling of the retention structure to the eye.

    METHODS AND SYSTEMS FOR CHANGING A REFRACTIVE PROPERTY OF AN IMPLANTABLE INTRAOCULAR LENS
    94.
    发明申请
    METHODS AND SYSTEMS FOR CHANGING A REFRACTIVE PROPERTY OF AN IMPLANTABLE INTRAOCULAR LENS 审中-公开

    公开(公告)号：US20190307554A1

    公开(公告)日：2019-10-10

    申请号：US16375784

    申请日：2019-04-04

    Applicant: OPTIMEDICA CORPORATION

    Inventor： Georg Schuele ,  Alexander Vankov ,  Jenny Wang ,  David A. Dewey ,  Tianheng Wang ,  Michael Wiltberger ,  Mihai State ,  Phillip Gooding

    IPC: A61F2/16 ,  B29D11/02

    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.

    Laser Eye Surgery System
    95.
    发明申请
    Laser Eye Surgery System 审中-公开

    公开(公告)号：US20190282084A1

    公开(公告)日：2019-09-19

    申请号：US16432821

    申请日：2019-06-05

    Applicant: OPTIMEDICA CORPORATION

    Inventor： David Angeley ,  Zhao Wang

    IPC: A61B3/10 ,  A61F9/008

    Abstract: A laser eye surgery system 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. 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. The patient interface assembly couples the eye with the integrated optical subsystem so as to constrain the eye relative to the integrated optical subsystem.

    Corneal topography measurements and fiducial mark incisions in laser surgical procedures
    99.
    发明授权
    Corneal topography measurements and fiducial mark incisions in laser surgical procedures 有权

    公开(公告)号：US10369053B2

    公开(公告)日：2019-08-06

    申请号：US14885213

    申请日：2015-10-16

    Applicant: OptiMedica Corporation

    Inventor： Rajeshwari Srinivasan ,  Jeffrey A. Golda ,  Javier G. Gonzalez ,  David D. Scott ,  David A. Dewey ,  Noah Bareket ,  Georg Schuele

    IPC: A61F9/08 ,  A61F9/008 ,  A61B3/107

    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
    100.
    发明申请
    VACUUM LOSS DETECTION DURING LASER EYE SURGERY 审中-公开

    公开(公告)号：US20190151145A1

    公开(公告)日：2019-05-23

    申请号：US16253161

    申请日：2019-01-21

    Applicant: OPTIMEDICA CORPORATION

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

    IPC: A61F9/009

    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.

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