公开(公告)号：US20220096274A1

公开(公告)日：2022-03-31

申请号：US17449249

申请日：2021-09-28

Applicant: AMO Development, LLC

Inventor： Hong Fu ,  Alireza Malek Tabrizi

IPC: A61F9/008

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：US20220062049A1

公开(公告)日：2022-03-03

申请号：US17446018

申请日：2021-08-26

Applicant: AMO Development, LLC

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

IPC: A61F9/008

Abstract: A method for forming deep corneal lamellar incision parallel to the posterior corneal surface when the eye is docked to the patient interface. A lower-energy detecting beam generated by the same pulsed laser that generates the higher-energy treatment laser beam is utilized to measure the posterior corneal surface profile. The detecting beam is scanned in the eye according to a first 3-dimensional scan pattern, while intensity of the back-reflected light is measured by a light intensity detector. The first scan pattern may be a spiral pattern in the X-Y plane coupled with a Z direction oscillation function. Peaks of the light intensity signal are detected, and corresponding spatial positions of the focus point are obtained; a known offset distance is added to the depth value to obtain the posterior corneal surface profile. Based thereon, the treatment laser beam is scanned in the eye to form the deep corneal lamellar incision.

公开(公告)号：US20220054316A1

公开(公告)日：2022-02-24

申请号：US17445308

申请日：2021-08-17

Applicant: AMO Development, LLC

Inventor： Andrew Voorhees ,  Alireza Malek Tabrizi ,  Hong Fu ,  Cynthia Villanueva ,  Nima Khatibzadeh ,  Deepali Mehta-Hurt ,  James Hill ,  Li Chen ,  Li Bing

IPC: A61F9/008

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.

公开(公告)号：US11123224B2

公开(公告)日：2021-09-21

申请号：US16457566

申请日：2019-06-28

Applicant: AMO DEVELOPMENT, LLC

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

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

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：US10898382B2

公开(公告)日：2021-01-26

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 ,  A61F9/008

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.

公开(公告)号：US10792188B2

公开(公告)日：2020-10-06

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：US20200069470A1

公开(公告)日：2020-03-05

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.

公开(公告)号：US10376415B2

公开(公告)日：2019-08-13

申请号：US15851356

申请日：2017-12-21

Applicant: AMO DEVELOPMENT, LLC

Inventor： Hong Fu ,  John M. Tamkin

IPC: A61F9/008

Abstract: A method and apparatus for performing ophthalmic laser surgery using a pulsed laser beam is provided. The method includes establishing an initial cutting pattern comprising a plurality of original photodisruption points, establishing an enhanced cutting pattern comprising a plurality of enhanced photodisruption points selected to decrease potential adverse effects due to patient movement and having increased density over a fixed area as compared with the plurality of original photodisruption points, and performing an ocular surgical procedure according to the enhanced cutting pattern. Enhanced cutting patterns may include circular cuts around the periphery of a capsule, vertical side cuts for lens fragmentation, raster lamellar cuts, and grid lamellar cuts. Each photodisruption point in the initial cutting pattern and the enhanced cutting pattern comprises a laser target point.

公开(公告)号：US10369052B2

公开(公告)日：2019-08-06

申请号：US14865396

申请日：2015-09-25

Applicant: AMO Development, LLC

Inventor： Hong Fu

IPC: A61F9/008

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.

公开(公告)号：US10363174B2

公开(公告)日：2019-07-30

申请号：US15699963

申请日：2017-09-08

Applicant: AMO DEVELOPMENT, LLC

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

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

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.