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1.发明授权公开(公告)号：US11540947B2
公开(公告)日：2023-01-03
申请号：US17062452
申请日：2020-10-02
Applicant: AMO DEVELOPMENT, LLC
Inventor： Alireza Malek Tabrizi , Hong Fu , James E. Hill , Zenon Witowski
IPC: A61F9/008
Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.
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公开(公告)号：US20210205129A1
公开(公告)日：2021-07-08
申请号：US17210418
申请日：2021-03-23
Applicant: AMO Development, LLC
Inventor： Jose L. Garcia , Roger W. Accurso , Daryl Wong , Zenon Witowski
IPC: A61F9/009
Abstract: Apparatus and method for interfacing an ophthalmic surgical laser system with a patient's eye using a single-piece patient interface (PI). The PI includes a hollow shell, with an applanation lens and a flexible skirt at its lower end. Through channels are formed around the applanation lens to connect the spaces above and below the lens. When the PI is coupled to the laser system and the eye, the upper rim of the shell forms a seal with the laser system and the flexible skirt forms a seal with the eye. A vacuum is applied to the interior of the shell via a vacuum port on the laser system, and the vacuum is communicated to the space enclosed by the applanation lens, the skirt and the eye through the channels around the lens. A magnetic mechanism is also provided to hold the PI shell to the laser system.
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公开(公告)号：US20180116870A1
公开(公告)日：2018-05-03
申请号：US15796610
申请日：2017-10-27
Applicant: AMO Development, LLC
Inventor： Jose L. Garcia , Roger W. Accurso , Daryl Wong , Zenon Witowski
IPC: A61F9/009
CPC classification number: A61F9/009 , A61F2210/009
Abstract: Apparatus and method for interfacing an ophthalmic surgical laser system with a patient's eye using a single-piece patient interface (PI). The PI includes a hollow shell, with an applanation lens and a flexible skirt at its lower end. Through channels are formed around the applanation lens to connect the spaces above and below the lens. When the PI is coupled to the laser system and the eye, the upper rim of the shell forms a seal with the laser system and the flexible skirt forms a seal with the eye. A vacuum is applied to the interior of the shell via a vacuum port on the laser system, and the vacuum is communicated to the space enclosed by the applanation lens, the skirt and the eye through the channels around the lens. A magnetic mechanism is also provided to hold the PI shell to the laser system.
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公开(公告)号：US12138201B2
公开(公告)日：2024-11-12
申请号：US17651242
申请日：2022-02-15
Applicant: AMO Development, LLC
Inventor： Alireza Malek Tabrizi , Hong Fu , James E. Hill , Mohammad Saidur Rahaman , Zenon Witowski
Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in a corneal stroma.
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公开(公告)号：US20230175838A1
公开(公告)日：2023-06-08
申请号：US18157729
申请日：2023-01-20
Applicant: AMO DEVELOPMENT, LLC
Inventor： Zheng Sun , Daniel Bray , Zenon Witowski , Timothy Slotterback , Hong Fu
IPC: G01B11/24
CPC classification number: G01B11/2408
Abstract: A measurement apparatus for measuring a laser focus spot size, which includes a two-dimensional image detector and an imaging system which forms a magnified image of a focus spot located an object plane onto the image detector. The imaging system includes at least an objective lens. A sealed liquid container is secured over a part of the objective lens such as the optical surface of the objective lens is immersed in the liquid (e.g. water) within the container. The liquid container has a window through which the laser beam enters. An image processing method is also disclosed which processes the image obtained by the image detector to obtain the focus spot size while implementing an algorithm that corrects for the effect of ambient vibration.
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Patent Agency Ranking
公开(公告)号：US10690486B2
公开(公告)日：2020-06-23
申请号：US16027137
申请日：2018-07-03
Applicant: AMO DEVELOPMENT, LLC
Inventor： Zheng Sun , Daniel Bray , Zenon Witowski , Timothy Slotterback , Hong Fu
IPC: G01B11/24
Abstract: A measurement apparatus for measuring a laser focus spot size, which includes a two-dimensional image detector and an imaging system which forms a magnified image of a focus spot located an object plane onto the image detector. The imaging system includes at least an objective lens. A sealed liquid container is secured over a part of the objective lens such as the optical surface of the objective lens is immersed in the liquid (e.g. water) within the container. The liquid container has a window through which the laser beam enters. An image processing method is also disclosed which processes the image obtained by the image detector to obtain the focus spot size while implementing an algorithm that corrects for the effect of ambient vibration.
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公开(公告)号：US20200011659A1
公开(公告)日：2020-01-09
申请号：US16027137
申请日：2018-07-03
Applicant: AMO DEVELOPMENT, LLC
Inventor： Zheng Sun , Daniel Bray , Zenon Witowski , Timothy Slotterback , Hong Fu
IPC: G01B11/24
Abstract: A measurement apparatus for measuring a laser focus spot size, which includes a two-dimensional image detector and an imaging system which forms a magnified image of a focus spot located an object plane onto the image detector. The imaging system includes at least an objective lens. A sealed liquid container is secured over a part of the objective lens such as the optical surface of the objective lens is immersed in the liquid (e.g. water) within the container. The liquid container has a window through which the laser beam enters. An image processing method is also disclosed which processes the image obtained by the image detector to obtain the focus spot size while implementing an algorithm that corrects for the effect of ambient vibration.
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公开(公告)号：US20140276672A1
公开(公告)日：2014-09-18
申请号：US14198319
申请日：2014-03-05
Applicant: AMO Development LLC.
Inventor： John WY Lee , Jian He , Jiandong Xu , Donald Simpson , Gennady Imeshev , Oleg J. Korovyanko , Zenon Witowski
IPC: A61F9/008
CPC classification number: A61F9/0084 , A61F9/00825 , A61F2009/0087 , A61F2009/00872 , A61F2009/00887 , A61F2009/00889
Abstract: Embodiments of this invention are directed to a laser system configured to deliver a pulsed laser beam to a patient's eye. The system includes a laser engine comprising an optically-pumped laser oscillator configured with an extracavity waveplate, and an optional intracavity waveplate, that can be tilted and rotated to provide a limited range of wavelengths for laser mode excitation and to maintain stable mode-locked laser operation. In an embodiment, the present design includes an oscillator and a photosensor, such as a fast photodetector or an autocorrelator, positioned to receive a beam of laser light associated with the oscillator or laser engine, and a controller configured to receive readings from the photosensor and alter the laser gain provided within the oscillator to a level outside the bistable performance zone avoiding mode and gain competitions.
Abstract translation: 本发明的实施例涉及一种被配置为将脉冲激光束传送到患者眼睛的激光系统。 该系统包括激光引擎，其包括配置有外腔波片的光泵浦激光振荡器和可选的腔内波片，其可以被倾斜和旋转以提供用于激光模式激发的有限范围的波长并且保持稳定的锁模激光器 操作。 在一个实施例中，本设计包括振荡器和诸如快速光电检测器或自相关器的光电传感器，其被定位成接收与振荡器或激光引擎相关联的激光束，以及控制器，被配置为从光电传感器接收读数， 将振荡器内提供的激光增益改变为双稳态性能区域之外的水平，避免模式和增益竞争。
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公开(公告)号：US12216272B2
公开(公告)日：2025-02-04
申请号：US18487027
申请日：2023-10-13
Applicant: AMO Development, LLC
Inventor： Mohammad Saidur Rahaman , Hong Fu , Roger W. Accurso , Zenon Witowski
Abstract: An ophthalmic laser system uses a non-confocal configuration to determine a laser beam focus position relative to the patient interface (PI) surface. The system includes a light intensity detector with no confocal lens or pinhole between the detector and the objective lens. When the objective focuses the light to a target focus point inside the PI lens at a particular offset from its distal surface, the light signal at the detector peaks. The offset value is determined by fixed system parameters, and can also be empirically determined by directly measuring the PI lens surface by observing the effect of plasma formation at the glass surface. During ophthalmic procedures, the laser focus is first scanned insider the PI lens, and the target focus point location is determined from the peak of the detector signal. The known offset value is then added to obtain the location of the PI lens surface.
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公开(公告)号：US11957412B2
公开(公告)日：2024-04-16
申请号：US17057105
申请日：2019-11-11
Applicant: AMO Development, LLC
Inventor： Zenon Witowski , Mohammad Saidur Rahaman , Daryl Wong
CPC classification number: A61B3/145 , A61B3/0008 , A61F9/008 , A61F2009/00897
Abstract: An imaging system for an ophthalmic laser system includes a prism cone made of a transparent optical material and disposed downstream of the focusing objective lens of the ophthalmic laser system, the prism cone having an upper surface, a lower surface parallel to the upper surface, a tapered side surface between the upper and lower surfaces, and a beveled surface formed at an upper edge of the prism cone and intersecting the upper surface and the side surface, and a camera disposed adjacent to the prism cone and facing the beveled surface. The camera is disposed to directly receive light that enters the lower surface of the prism cone and exits the beveled surface without having been reflected by any surface.
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