US 12,478,250 B2
Imaging a target within an eye and calibrating imaging devices
Utkarsh Sharma, Solon, OH (US); and Zsolt Bor, San Clemente, CA (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Oct. 26, 2022, as Appl. No. 18/049,963.
Claims priority of provisional application 63/281,487, filed on Nov. 19, 2021.
Prior Publication US 2023/0157537 A1, May 25, 2023
Int. Cl. A61B 3/10 (2006.01); A61B 3/14 (2006.01); A61B 5/00 (2006.01)
CPC A61B 3/102 (2013.01) [A61B 3/14 (2013.01); A61B 5/0066 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ophthalmic laser surgical system for imaging and treating a target in an eye, comprising:
an imaging system comprising an optical coherence tomography (OCT) device configured to:
direct an OCT imaging beam along an imaging beam path towards the target in the eye, the eye having an eye axis, the eye axis defining a z-axis, the z-axis defining a plurality of xy-planes in the eye;
receive the OCT imaging beam reflected from the eye; and
generate a plurality of OCT images from the reflected OCT imaging beam; and
a treatment system comprising a laser device configured to direct a laser beam along a laser beam path towards the eye;
a beam combining and alignment device configured to align the OCT imaging beam and the laser beam; and
a laser-OCT xy-scanner configured to:
receive the OCT imaging beam from the imaging system, direct the OCT imaging beam along the imaging beam path towards the eye, and scan the OCT imaging beam in an xy-plane in the eye; and
receive the laser beam from the laser device, direct the laser beam along the laser beam path aligned with the imaging beam path towards the eye, and scan the laser beam in the xy-plane in the eye, the laser-OCT xy-scanner configured to scan the laser beam in the xy-plane in the eye by scanning the laser beam in a stepwise manner by scanning when the laser device is not firing the laser beam and ceasing scanning when the laser device is firing the laser beam; and
a computer configured to send instructions to the OCT device and the laser device.