VARYING A NUMERICAL APERTURE OF A LASER DURING LENS FRAGMENTATION IN CATARACT SURGERY
    61.
    发明申请
    VARYING A NUMERICAL APERTURE OF A LASER DURING LENS FRAGMENTATION IN CATARACT SURGERY 审中-公开
    变化在激光手术中的镜片分割中的激光的数值孔径

    公开(公告)号:US20160310321A1

    公开(公告)日:2016-10-27

    申请号:US15200825

    申请日:2016-07-01

    Abstract: Some embodiments disclosed here provide for a method fragmenting a cataractous lens of a patient's eye using an ultra-short pulsed laser. The method can include determining, within a lens of a patient's eye, a high NA zone where a cone angle of a laser beam with a high numerical aperture is not shadowed by the iris, and a low NA zone radially closer to the iris where the cone angle of the laser beam with a low numerical aperture is not shadowed by the iris. Laser lens fragmentation is accomplished by delivering the laser beam with the high numerical aperture to the high NA zone, and the laser beam with the low numerical aperture to the low NA zone. This can result in a more effective fragmentation of a nucleus of the lens without exposing the retina to radiation above safety standards.

    Abstract translation: 这里公开的一些实施例提供了使用超短脉冲激光来分割病人眼睛的白内障透镜的方法。 该方法可以包括在患者眼睛的镜片内确定高NA区域,其中具有高数值孔径的激光束的锥角不被虹膜遮蔽,以及径向更靠近虹膜的低NA区域,其中 具有低数值孔径的激光束的锥角不被虹膜遮蔽。 激光透镜碎片通过将具有高数值孔径的激光束传递到高NA区域,并将具有低数值孔径的激光束传递到低NA区域来实现。 这可能导致镜片细胞核的更有效的分裂,而不会将视网膜暴露于高于安全标准的辐射。

    SYSTEMS AND METHODS FOR FEMTOSECOND LASER PHOTOREFRACTIVE KERATECTOMY
    63.
    发明申请
    SYSTEMS AND METHODS FOR FEMTOSECOND LASER PHOTOREFRACTIVE KERATECTOMY 审中-公开
    FEMTOSECOND激光光刻机的系统和方法

    公开(公告)号:US20160250074A1

    公开(公告)日:2016-09-01

    申请号:US14968618

    申请日:2015-12-14

    Inventor: Hong Fu

    Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for photorefractive keratectomy. In an embodiment, an ophthalmic surgical laser system comprises a laser source generating a pulsed laser beam and a laser delivery system delivering the pulsed laser beam to a cornea of an eye. A patient interface couples to and constrains the eye relative to the laser delivery system. A controller controls the laser delivery system to perform an anterior surface volume dissection on the cornea.

    Abstract translation: 本发明的实施方案一般涉及眼科激光程序,更具体地涉及光折射角膜切除术的系统和方法。 在一个实施例中,眼科外科激光系统包括产生脉冲激光束的激光源和将脉冲激光束传送到眼睛的角膜的激光传送系统。 患者界面相对于激光输送系统耦合并约束眼睛。 控制器控制激光输送系统在角膜上执行前表面体积解剖。

    Varying a numerical aperture of a laser during lens fragmentation in cataract surgery
    64.
    发明授权
    Varying a numerical aperture of a laser during lens fragmentation in cataract surgery 有权
    在白内障手术期间,在晶状体碎裂期间改变激光的数值孔径

    公开(公告)号:US09393156B2

    公开(公告)日:2016-07-19

    申请号:US14193740

    申请日:2014-02-28

    Abstract: Some embodiments disclosed here provide for a method fragmenting a cataractous lens of a patient's eye using an ultra-short pulsed laser. The method can include determining, within a lens of a patient's eye, a high NA zone where a cone angle of a laser beam with a high numerical aperture is not shadowed by the iris, and a low NA zone radially closer to the iris where the cone angle of the laser beam with a low numerical aperture is not shadowed by the iris. Laser lens fragmentation is accomplished by delivering the laser beam with the high numerical aperture to the high NA zone, and the laser beam with the low numerical aperture to the low NA zone. This can result in a more effective fragmentation of a nucleus of the lens without exposing the retina to radiation above safety standards.

    Abstract translation: 这里公开的一些实施例提供了使用超短脉冲激光来分割病人眼睛的白内障透镜的方法。 该方法可以包括在患者眼睛的镜片内确定高NA区域,其中具有高数值孔径的激光束的锥角不被虹膜遮蔽,以及径向更靠近虹膜的低NA区域,其中 具有低数值孔径的激光束的锥角不被虹膜遮蔽。 激光透镜碎片通过将具有高数值孔径的激光束传递到高NA区域,并将具有低数值孔径的激光束传递到低NA区域来实现。 这可能导致镜片细胞核的更有效的分裂,而不会将视网膜暴露于高于安全标准的辐射。

    Systems and methods for dynamic patient fixation system
    65.
    发明授权
    Systems and methods for dynamic patient fixation system 有权
    动态患者固定系统的系统和方法

    公开(公告)号:US09155658B2

    公开(公告)日:2015-10-13

    申请号:US14146090

    申请日:2014-01-02

    CPC classification number: A61F9/008 A61F2009/00846

    Abstract: The field of the invention relates to systems and methods for ophthalmic laser procedure and, more particularly, to systems and methods for dynamic fixation used in the fixation of the eye(s) of a patient during laser-assisted ophthalmic surgery and/or ophthalmic diagnostic and measurement systems where visualization and concentration on a target are desired. The invention generally enhances the alignment between the eye and a laser beam of a laser eye surgery system using visual fixation system and laser delivery optics. The visual fixation system allows a patient's eye(s) to be accurately focused at one or more fixation targets.

    Abstract translation: 本发明的领域涉及用于眼科激光程序的系统和方法,更具体地,涉及用于在激光辅助眼科手术和/或眼科诊断期间固定患者眼睛的动态固定的系统和方法 以及需要对目标进行可视化和集中的测量系统。 本发明通常使用视觉固定系统和激光输送光学器件来增强眼睛与激光眼睛手术系统的激光束之间的对准。 视觉固定系统允许患者的眼睛精确地聚焦在一个或多个固定目标上。

    SINGLE-PIECE PATIENT INTERFACE DEVICE FOR OPHTHALMIC LASER SURGERY

    公开(公告)号:US20250090379A1

    公开(公告)日:2025-03-20

    申请号:US18888079

    申请日:2024-09-17

    Abstract: A single-piece patient interface device for coupling a patient's eye to an ophthalmic surgical laser system includes a cone substrate with a rigid frustoconical shaped shell for coupling to the laser system, and a flexible suction ring integrally joined to the lower end of the rigid shell for coupling to the patient's eye. The suction ring has a circular skirt extending downwardly from a base portion, a diaphragm extending from the base portion and disposed inside of the skirt, and a contact lens held by the diaphragm to cover a center opening. When the skirt contacts the eye's surface, the skirt, the diaphragm, the contact lens and the eye surface form a vacuum chamber, where a vacuum may be applied to secure the patient interface device to the eye. The parameters of the suction ring are optimized to fit a large range of eye sizes, including smaller eyes.

    LASER EYE SURGERY SYSTEM EMPLOYING DUAL-CHANNEL VIDEO IMAGING SYSTEM FOR REAL-TIME PROCEDURE VISUALIZATION AND RELATED IMAGING METHODS

    公开(公告)号:US20250073081A1

    公开(公告)日:2025-03-06

    申请号:US18817116

    申请日:2024-08-27

    Abstract: In a femtosecond laser eye surgery system where beam delivery is accomplished with a moving objective, a dual-channel imaging system allows real-time procedure visualization before and during incision. The first (docking) imaging channel covers a full field of view (FoV) of the eye, e.g., 13 mm; the second (cutting) imaging channel is through the objective and moves with it, and covers a smaller FoV, e.g., 2 mm. During eye docking and undocking, the objective is moved to a parking position out of the visual field of the docking imaging channel, and the latter operates to provide process visualization. During incision, a composite eye image is displayed, composed of a stationary image captured by the docking imaging channel before treatment began overlayed with live cutting images captured by the cutting imaging channel. The live cutting images are compared to the stationary image in real time to detect eye movement.

    Laser focal spot size measurement using a built-in camera for an ophthalmic laser system

    公开(公告)号:US12128497B2

    公开(公告)日:2024-10-29

    申请号:US17450452

    申请日:2021-10-08

    Abstract: An ophthalmic laser surgical system has a built-in imaging sensor for measuring laser focal spot size. An objective lens focuses the laser beam to a focal spot near a reflective surface, scans the focal spot in the depth direction, and focuses light reflected by the reflective surface to form a back-reflected light. A two-dimensional imaging sensor receives a sample of the back-reflected light to generate images of the back-reflected light. During the depth scan, the image contains a well-focused light spot when the laser focal spot is located at a fixed offset distance before the reflective surface, but the light spot in the images is otherwise defocused. The images generated during the scan are analyzed to find the smallest light spot size among the images. The laser focal spot size is then calculated from the smallest light spot size using a magnification factor which is a system constant.

    CORNEAL LENTICULAR INCISIONS WITH TRANSITION ZONES IN LASER-ASSISTED OPHTHALMIC PROCEDURES

    公开(公告)号:US20240335323A1

    公开(公告)日:2024-10-10

    申请号:US18737900

    申请日:2024-06-07

    CPC classification number: A61F9/00827 A61F2009/00872 A61F2009/00897

    Abstract: In laser-assisted corneal lenticule extraction procedures, the lenticule incision profile includes anterior and posterior lenticule incisions, with one or more of the following features: plano transition zone outside the optical zone, to improve mating of anterior and posterior incision surfaces after lenticule extraction; shallow arcuate incisions above the anterior incision and near the lenticule edge, to improve surface mating; separate ring cut intersecting the anterior and posterior incisions in the transition zone, to reduce tissue bridges and minimize tear at the lenticule edges and facilitate easy lenticule extraction; larger posterior incision, which includes a pocket zone outside the lenticule edge, for better surface mating and bubble management during cutting; and a separate ring shaped pocket cut intersecting the pocket zone of the posterior incision, for bubble management. An entry cut can intersect either the pocket zone of the posterior incision or an entry extension zone of the anterior incision.

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