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：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：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：US20240374428A1

公开(公告)日：2024-11-14

申请号：US18661507

申请日：2024-05-10

Applicant: AMO Development, LLC

Inventor： Alireza Malek Tabrizi ,  Griffith Altmann ,  Harvey Liu ,  Zenon Witowski ,  Mohammad Saidur Rahaman ,  Hong Fu

IPC: A61F9/008

Abstract: During laser ophthalmic procedures, back-reflected treatment laser light is detected by an auto-Z module and analyzed in real-time to determine various aspects of laser-tissue interaction during the procedure. This method can detect the presence of “black spots” (locations where no laser-tissue interaction occurred), sub-optimal incision quality, etc. in real time, and allows for dynamical adjustment of the laser treatment parameters such as pulse energy, laser spot separation, etc. to correct the detected problems. The auto-Z signal analysis may also depend on which incision segment or region is currently being cut, to optimally control different cutting segments. This method improves corneal incision quality and helps to achieves consistent laser-tissue interaction from patient to patient.

公开(公告)号：US20240325202A1

公开(公告)日：2024-10-03

申请号：US18739163

申请日：2024-06-10

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi

IPC: A61F9/008

CPC classification number: A61F9/00829 ,  A61F2009/00872

Abstract: A corneal lenticule extraction procedure provides convenient re-treatment options when treatment interruptions occur. The procedure is executed by an ophthalmic laser system according to a programmed treatment plan, which defines an entry cut, an optional ring cut, a bottom lenticule incision having an optical zone, and a flat top bed incision. If an interruption occurs during the entry cut, the treatment plan is re-aligned with the partially formed entry cut and continued, or with a new entry cut placed at a different angular position. If an interruption occurs during the ring cut, the treatment plan is revised to define a larger ring cut concentric with the partially formed ring cut. If an interruption occurs during the bottom or top incision, the depth of the partially formed bottom or top incision is measured, and the treatment plan is revised to form a deeper bottom incision or a shallower top incision, respectively.

公开(公告)号：US20240180746A1

公开(公告)日：2024-06-06

申请号：US18439724

申请日：2024-02-12

Applicant: AMO Development, LLC

Inventor： Andrew Voorhees ,  Harvey Liu ,  Hong Fu ,  Alireza Malek Tabrizi ,  Nima Khatibzadeh ,  Deepali Mehta-Hurt ,  Cynthia Villanueva ,  James Hill ,  Alisyn Facemire

IPC: A61F9/008 ,  A61B18/00 ,  A61B18/20

CPC classification number: A61F9/00836 ,  A61B2018/00779 ,  A61B2018/20353 ,  A61B2018/20355 ,  A61F2009/00872 ,  A61F2009/00897

Abstract: A method implemented in an ophthalmic surgical laser system that employs a resonant scanner, scan line rotator, and XY- and Z-scanners, for forming a corneal flap in a patient's eye with improved bubble management during each step of the flap creation process. A pocket cut is formed first below bed level, followed by the bed connected to the pocket cut, then by a side cut extending from the bed to the anterior corneal surface. The pocket cut includes a pocket region located below the bed level and a ramp region connecting the pocket region to the bed. The bed is formed by a hinge cut and a first ring cut at lower laser energies, followed by a bed cut and then a second ring cut, which ensures that any location in the flap bed is cut twice to minimize tissue adhesion. The side cut is formed by multiple side-cut layers at different depths which are joined together. All cuts are formed by scanning a laser scan line generated by the resonant scanner.

公开(公告)号：US20210346202A1

公开(公告)日：2021-11-11

申请号：US17379976

申请日：2021-07-19

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：US11039959B2

公开(公告)日：2021-06-22

申请号：US16121482

申请日：2018-09-04

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi ,  Nima Khatibzadeh ,  James Hill

IPC: A61F9/008

Abstract: An ophthalmic laser procedure for forming a lenticule in a cornea and extracting the lenticule from the cornea to accomplish vision correction. An ophthalmic laser system is used to form top and bottom lenticule incisions defining a lenticule in between, and further to form top and/or bottom entry cuts that respectively end unambiguously near the top or bottom lenticule surface. The bottom entry cut intersects both the top and bottom lenticule incisions but ends near the bottom lenticule incision. The entry cuts allow the surgeon to insert a surgical tool which reaches the intended top or bottom lenticule surface without ambiguity. The lenticule has an optical zone in the center that defines the optical power of the lenticule, and a transition zone in the periphery, where the end points of the entry cuts are located in the transition zone.