公开(公告)号：WO2023089458A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/060849

申请日：2022-11-10

Applicant: ALCON INC.

Inventor： DEHOOG, Edward A. ,  PARK, John

IPC: A61F9/008 ,  A61B3/13

Abstract: In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes a digital micromirror device (DMD) confocal microscope, a laser device, and a computer. The DMD confocal microscope generates of images of the eye and includes a light source, a DMD device, and an image sensor. The light source provides a microscope imaging beam. The DMD device directs the microscope imaging beam along an imaging path towards the eye, receives the microscope imaging beam reflected from the eye, and rejects light of the reflected microscope imaging beam that is not from an image plane to scan the microscope imaging beam. The image sensor detects the scanned microscope imaging beam to generate the images of the eye. The laser device directs a laser beam along a laser beam path towards the target in the eye.

公开(公告)号：WO2023089423A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/060352

申请日：2022-10-27

Applicant: ALCON INC.

Inventor： BOR, Zsolt

IPC: A61F9/008

Abstract: In certain embodiments, an ophthalmic laser surgical system for treating a target tissue in an eye includes a target detection system and a laser device. The target tissue has an optical breakdown threshold. The target detection system directs detection beams along a detection beam path towards the target tissue in a vitreous of the eye, and determines a location of the target tissue within the vitreous. The laser device includes a femtosecond laser that generates subthreshold laser pulses that have a pulse energy below the optical breakdown threshold of the tissue. The laser device directs a laser beam comprising the subthreshold laser pulses along a laser beam path towards the target tissue.

公开(公告)号：WO2023089420A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/060315

申请日：2022-10-26

Applicant: ALCON INC.

Inventor： PARK, John ,  DEHOOG, Edward A.

IPC: A61F9/008

Abstract: In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes an imaging system. The imaging system includes a scanning laser ophthalmoscope (SLO) device and an optical coherence tomography (OCT) device. The SLO device generates SLO images, and the OCT device generates OCT images. The SLO device and the OCT device share a scanning system and a light detector. The scanning system scans SLO and OCT imaging beams within the eye. The light detector detects the SLO and OCT imaging beams reflected from the eye and generates SLO and OCT signals in response to detecting the imaging beams.

公开(公告)号：WO2023089417A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/060256

申请日：2022-10-25

Applicant: ALCON INC.

Inventor： BOR, Zsolt

IPC: A61F9/008

Abstract: In certain embodiments, an ophthalmic laser surgical system for treating a floater in a vitreous of an eye includes a floater detection system, a laser device, and a computer. The floater detection system determines the location of the floater in the vitreous of the eye. The laser device directs a laser beam along a laser beam path towards the floater. The computer accesses a three-dimensional scan pattern for the laser beam that yields a three-dimensional pulse pattern of laser pulses. The three-dimensional pulse pattern has a bubble shield pulse pattern at the posterior side of the three-dimensional pulse pattern. The bubble shield pulse pattern forms a bubble shield that reduces laser radiation exposure at a retina of the eye. The computer instructs the laser device to direct the laser beam towards the floater according to the three-dimensional scan pattern.

公开(公告)号：WO2023089414A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/060212

申请日：2022-10-24

Applicant: ALCON INC.

Inventor： BOR, Zsolt ,  MALEK TABRIZI, Alireza ,  MAURICIO, Raul

IPC: A61F9/008

Abstract: In certain embodiments, an ophthalmic laser system for treating a floater in a vitreous of an eye includes a laser device that directs laser pulses towards the floater to yield cavitation bubbles that create a bubble jet to treat the floater. In some examples, the laser device includes a beam multiplexer that splits a laser beam into multiple beams that form the cavitation bubbles that create the bubble jet. In some examples, the laser device directs laser pulses towards the floater according to a pulse pattern that forms the cavitation bubbles that create the bubble jet.

公开(公告)号：WO2023089400A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/059522

申请日：2022-10-05

Applicant: ALCON INC.

Inventor： BOR, Zsolt

IPC: A61F9/008 ,  A61B3/13

Abstract: In certain embodiments, an ophthalmic laser system that performs a laser procedure on an eye includes a laser device, an ophthalmic microscope, a y-direction motor, a user interface device, and a controller. The laser device includes a laser delivery head that directs a laser beam towards a target within the eye. The laser beam defines a z-axis, which defines an xy-plane with a y-axis that defines a y-direction. The ophthalmic microscope receives light from within the eye to provide an image of the eye. The user interface device receives instructions from a user. The controller receives an instruction from the user interface device to move the laser delivery head and the ophthalmic microscope in the y-direction, and instructs the y-direction motor to move the laser delivery head and the ophthalmic microscope in the y-direction in response to the instruction.

公开(公告)号：WO2023089399A1

公开(公告)日：2023-05-25

申请号：PCT/IB2022/059519

申请日：2022-10-05

Applicant: ALCON INC.

Inventor： SHARMA, Utkarsh

IPC: A61F9/008

Abstract: In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes an optical coherence tomography (OCT) device that: directs an imaging beam towards the eye; generates three-dimensional (3D) image data from the imaging beam reflected from the eye; and generates two-dimensional (2D) enface images from the 3D image data. The 2D enface images include a target enface image imaging the target in the eye and a retinal enface image imaging a shadow cast by the target onto the retina. An xy-scanner directs the imaging beam along an imaging beam path towards the eye, and directs a laser beam from the laser device along a laser beam path aligned with the imaging beam path towards the eye. A computer compares the target of the target enface image and the shadow of the retinal enface image to confirm the presence of the target.

公开(公告)号：WO2023062565A1

公开(公告)日：2023-04-20

申请号：PCT/IB2022/059796

申请日：2022-10-12

Applicant: ALCON INC.

Inventor： JUNG, David ,  OCHOA, Francisco Javier ,  CASTRO, Daniel ,  STEWART, Corey ,  WATANABE, Keith

IPC: A61F9/008

Abstract: Systems and methods are disclosed for dynamically controlling laser pulses being output from a laser system. An example surgical system comprises a laser, an optical switching device, an adjustable input device such as a foot pedal, and a laser pulse controller. An operator actuates the adjustable input device over an operating range to control dynamically the laser pulses being output from the laser system. In one mode, the adjustable input device may dynamically control output laser energy. In another mode, the adjustable input device may dynamically control selection of laser pulses to be output from the system.

公开(公告)号：WO2022260781A1

公开(公告)日：2022-12-15

申请号：PCT/US2022/027447

申请日：2022-05-03

Applicant: OJAI RETINAL TECHNOLOGY, LLC

Inventor： LUTTRULL, Jeffrey K.

IPC: A61F9/008

Abstract: At least one pulsed light beam is applied to eye tissue to raise the temperature of the eye tissue to photostimulate the tissue. The at least one light beam has parameters of wavelength, duty cycle, power and pulse train duration selected to achieve a therapeutic or prophylactic effect while not permanently damaging the eye tissue. The eye tissue photostimulation improves ocular health and function and slows or prevents disorders associated with a normally aging eye.

公开(公告)号：WO2022234517A1

公开(公告)日：2022-11-10

申请号：PCT/IB2022/054175

申请日：2022-05-05

Applicant: ALCON INC.

Inventor： MALEK TABRIZI, Alireza ,  KHAZAEINEZHAD, Reza ,  APOSTOL, Adela ,  KARIM, John Hossein ,  CASTRO, Daniel ,  STEWART, Corey ,  JUNG, David

IPC: A61F9/008

Abstract: Systems and methods are disclosed for monitoring a laser system using detection of back reflection. In some embodiments, a laser system comprises a laser, at least one optical fiber, and a back-reflection monitoring sensor for detecting electromagnetic radiation reflected back from the optical fiber(s). The back-reflection monitoring sensor may be adapted to detect back-reflected electromagnetic radiation while the laser system is in use. The laser system may further comprise a computing system adapted to calculate an output power of the system based upon the back-reflected electromagnetic radiation. In some embodiments, a method of monitoring a laser system using detection of back reflection comprises transmitting electromagnetic radiation from a laser, receiving the electromagnetic radiation at one or more optical fibers, and detecting electromagnetic radiation that is back reflected at a back-reflection monitoring sensor.