公开(公告)号：US20210015668A1

公开(公告)日：2021-01-21

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.

公开(公告)号：US20200337903A1

公开(公告)日：2020-10-29

申请号：US16923496

申请日：2020-07-08

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi

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

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 concave portion and an edge transition portion that has a smooth convex shape and is smoothly joined to the center concave portion.

公开(公告)号：US20200046558A1

公开(公告)日：2020-02-13

申请号：US16057740

申请日：2018-08-07

Applicant: AMO DEVELOPMENT, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi ,  Nima Khatibzadeh

IPC: A61F9/008

Abstract: An ophthalmic surgical laser system and method for forming a lenticule in a subject's eye using “fast-scan-slow-sweep” scanning scheme. A high frequency scanner forms a fast scan line, which is placed by the XY and Z scanners at a location tangential to a parallel of latitude of the surface of the lenticule. The XY and Z scanners then move the scan line in a slow sweep trajectory along a meridian of longitude of the surface of the lenticule in one sweep. Multiple sweeps are performed along different meridians to form the entire lenticule surface, and a prism is used to change the orientation of the scan line of the high frequency scanner between successive sweeps. In each sweep, the sweeping speed along the meridian is variable, being the slowest at the edge of the lenticule and the fastest near the apex.

公开(公告)号：US10456297B2

公开(公告)日：2019-10-29

申请号：US14848733

申请日：2015-09-09

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：US20190110926A1

公开(公告)日：2019-04-18

申请号：US15782791

申请日：2017-10-12

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.

公开(公告)号：US20180064577A1

公开(公告)日：2018-03-08

申请号：US15699963

申请日：2017-09-08

Applicant: AMO DEVELOPMENT, LLC

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

IPC: A61F9/008 ,  A61B3/10

CPC classification number: A61F9/0084 ,  A61B3/1005 ,  A61B3/1025 ,  A61B3/107 ,  A61F9/008 ,  A61F9/0081 ,  A61F9/00814 ,  A61F9/00836 ,  A61F2009/00844 ,  A61F2009/00872 ,  A61F2009/00878 ,  A61F2009/00897

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：US20170367883A1

公开(公告)日：2017-12-28

申请号：US15630629

申请日：2017-06-22

Applicant: AMO Development, LLC

Inventor： Alireza Malek Tabrizi ,  Hong Fu ,  James E. Hill ,  Mohammad Saidur Rahaman ,  Zenon Witowski

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

CPC classification number: A61F9/0084 ,  A61B18/20 ,  A61B2018/00601 ,  A61F9/00827 ,  A61F2009/00872 ,  A61F2009/00897

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.