公开(公告)号：US11007080B2

公开(公告)日：2021-05-18

申请号：US15868125

申请日：2018-01-11

Applicant: Alcon Inc.

Inventor： Muhammad Al-Qaisi ,  Craig Bender

IPC: A61F9/00 ,  A61F9/008 ,  A61B3/10 ,  G01B9/02 ,  A61B90/00

Abstract: The present disclosure provides a system and method for cutting a flap in laser ophthalmic surgery using polarization sensitive optical coherence tomography (PS-OCT). The system includes a PS-OCT system, a femtosecond laser, control device, and processor. The PS-OCT system includes a PS-OCT source, a polarization component, a reference reflector, a beam splitter, a wave plate, and a detector. The processor receives data relating to an interference pattern of a reflected PS-OCT beam, received at the detector, determines a relative fiber orientation of the sample, determines whether a photodisruption pattern generated by the femtosecond laser to cut the flap should be adjusted horizontally or vertically, based on the relative fiber orientation, and may generate a control signal to adjust the photodisruption pattern generated by the femtosecond laser. The disclosure further provides a method for cutting a flap on an eye using PS-OCT.

公开(公告)号：US10827919B2

公开(公告)日：2020-11-10

申请号：US15958904

申请日：2018-04-20

Applicant: Alcon Inc.

Inventor： Craig Bender ,  Michael Papac ,  Lingfeng Yu

IPC: A61B3/00 ,  A61B3/14 ,  A61B3/10 ,  A61B3/13 ,  A61B5/00 ,  A61F9/008 ,  G01B9/02

Abstract: An optical coherence tomography (OCT) apparatus includes an optical source module comprising two or more selectable optical sources or an optical source configured to selectively operate in two or more source operating modes, or a combination of both, and further comprises an OCT engine coupled to the optical source module, the OCT engine comprising an OCT interferometer. The OCT apparatus still further includes a mode-switching optics module coupled to the OCT engine and comprising one or more swappable, selectable, or adjustable optical components, such that the mode-switching optics module is configured to selectively provide two or more optical configurations for the optical path between the OCT engine and an imaged object, according to two or more corresponding operating modes.