公开(公告)号：US20210298958A1

公开(公告)日：2021-09-30

申请号：US17303960

申请日：2021-06-11

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Patrick De Guzman ,  Robert Heitel ,  Alireza Malek Tabrizi

IPC: A61F9/008

Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for creating synchronized three-dimensional laser incisions. 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 synchronize an oscillation of the XY-scan device and an oscillation of the Z-device to form an angled three-dimensional laser tissue dissection.

公开(公告)号：US11065156B2

公开(公告)日：2021-07-20

申请号：US15638169

申请日：2017-06-29

Applicant: AMO Development, LLC

Inventor： Alireza Malek Tabrizi ,  Hong Fu ,  James E. Hill

IPC: A61F9/008 ,  A61B3/00

Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions.

公开(公告)号：US20210196518A1

公开(公告)日：2021-07-01

申请号：US17102431

申请日：2020-11-23

Applicant: AMO Development, LLC

Inventor： Paul Gray ,  Guangming Dai ,  Alireza Malek Tabrizi ,  Hong Fu

IPC: A61F9/008 ,  A61F9/007 ,  G06F30/23

Abstract: An ophthalmic surgical laser system includes a laser beam delivery system having multiple moving components for scanning a laser focal spot in a target eye tissue, where the motors that actuate some of the moving components are equipped with respective digital encoders that measure actual motor positions. A controller controls the laser beam delivery system to perform a treatment scan, while recording the actual motor positions from the encoders. Using the actual motor positions and a calibration relationship between actual motor positions and delivered laser focal spot positions in a target tissue, a laser cutting pattern is digitally reconstructed, which represents the incisions actually achieved by the treatment scan. The reconstructed laser cutting pattern may be visually inspected and further analyzed, e.g. to compare it to the intended laser cutting pattern used to execute the treatment scan, to calculate the achieved refractive correction, or to simulate tissue resetting.

公开(公告)号：US11033431B2

公开(公告)日：2021-06-15

申请号：US16666205

申请日：2019-10-28

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Patrick De Guzman ,  Robert Heitel ,  Alireza Malek Tabrizi

IPC: A61F9/008

Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for creating synchronized three-dimensional laser incisions. 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 synchronize an oscillation of the XY-scan device and an oscillation of the Z-device to form an angled three-dimensional laser tissue dissection.

公开(公告)号：US20200289318A1

公开(公告)日：2020-09-17

申请号：US16355662

申请日：2019-03-15

Applicant: AMO Development, LLC

Inventor： Harvey I. Liu ,  Mohammad Saidur Rahaman ,  Hong Fu ,  Griffith E. Altmann

IPC: A61F9/009 ,  A61F9/008

Abstract: An ophthalmic laser surgical system uses a confocal detector assembly to continuously detect a confocal signal during laser treatment, and based on the confocal signal, detects in real time a loss of tissue contact with the patient interface (PI) output surface. The detection is partly based on the change of reflectivity at the PI output surface when the optical interface changes from a lens-tissue interface to a lens-air interface. The behavior of the confocal signal upon loss of tissue contact is dependent on the treatment laser scan pattern being performed at the time of tissue contact loss. Thus, different confocal signal analysis algorithms are applied to detect tissue contact loss during different scans, such as the bed cut and side cut for a corneal flap. The real time confocal signal may also be used during eye docking to detect the establishment of tissue contact with the PI output surface.

公开(公告)号：US20190388270A1

公开(公告)日：2019-12-26

申请号：US16457566

申请日：2019-06-28

Applicant: AMO DEVELOPMENT, LLC

Inventor： Alireza Malek Tabrizi ,  Harvey I. Liu ,  Hong Fu

IPC: A61F9/008 ,  A61B3/107 ,  A61B3/10

Abstract: A compact system for performing laser ophthalmic surgery is disclosed. The systems and methods may be used to measure corneal thickness or other anatomy to prepare a treatment plan for any of numerous treatments, such as LASIK, PRK, intra stromal lenticular lens incisions, cornea replacement, or any other treatment. By using a reduced power femtosecond laser backscatter may be measured to calculate distances such as distances between an interior boundary and an exterior boundary of a cornea or other tissue.

公开(公告)号：US10369054B2

公开(公告)日：2019-08-06

申请号：US15200768

申请日：2016-07-01

Applicant: AMO Development, LLC

Inventor： Anthony W. Dennison ,  Michael A. Campos ,  Hong Fu

IPC: A61F9/008

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.

公开(公告)号：US10327954B2

公开(公告)日：2019-06-25

申请号：US15200825

申请日：2016-07-01

Applicant: AMO Development, LLC

Inventor： Anthony W. Dennison ,  Michael A. Campos ,  Hong Fu

IPC: A61F9/008

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.

公开(公告)号：US20190060122A1

公开(公告)日：2019-02-28

申请号：US16109654

申请日：2018-08-22

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi

IPC: A61F9/008 ,  A61B3/107 ,  A61B3/00

CPC classification number: A61F9/00827 ,  A61B3/0008 ,  A61B3/107 ,  A61F9/00834 ,  A61F2009/00848 ,  A61F2009/00872 ,  A61F2009/0088 ,  A61F2009/00887 ,  A61F2009/00897

Abstract: Embodiments of this invention 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 the subject's eye, where each of the top and bottom lenticular incision includes a center spherical portion and an edge transition portion that is not located on the same spherical surface as the spherical portion but has a steeper shape.

公开(公告)号：US20180303664A1

公开(公告)日：2018-10-25

申请号：US15956676

申请日：2018-04-18

Applicant: AMO DEVELOPMENT, LLC

Inventor： Roger W. Accurso ,  Jose L. Garcia ,  Daryl Wong ,  Hong Fu ,  Harvey Liu ,  Leonard R. Borrmann

IPC: A61F9/009

CPC classification number: A61F9/009 ,  A61F2009/00872 ,  A61F2009/00887

Abstract: A single-piece patient interface device (PI) for coupling an patient's eye to an ophthalmic surgical laser system, which includes a rigid shell, a flexible suction ring joined to a lower edge of the shell, an applanation lens, and a flexible annular diaphragm which joins the applanation lens to the shell near the lower edge of the shell. The flexible diaphragm allows the applanation lens to move relative to the shell, including to shift in longitudinal and lateral directions of the shell and to tilt. In operation, the surgeon first secures the PI to the patient's eye by hand, and then couples the laser system to the PI by lowering the laser delivery head into the PI shell. During the lowering process, the laser delivery head presses the applanation lens down relative to the PI to applanate the cornea of the eye.