US 12,383,428 B2
Adjusting laser pulses to compensate for interfering objects
Mario Abraham, Burgthann (DE); and Michael Wittnebel, Hirschaid (DE)
Assigned to ALCON INC., Fribourg (CH)
Filed by ALCON INC., Fribourg (CH)
Filed on May 7, 2024, as Appl. No. 18/656,804.
Application 18/656,804 is a continuation of application No. 17/643,449, filed on Dec. 9, 2021, granted, now 12,029,684.
Claims priority of provisional application 63/126,278, filed on Dec. 16, 2020.
Prior Publication US 2024/0285436 A1, Aug. 29, 2024
Int. Cl. A61F 9/008 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 90/00 (2016.01); G16H 20/40 (2018.01)
CPC A61F 9/008 (2013.01) [A61B 90/361 (2016.02); G16H 20/40 (2018.01); A61B 2017/00181 (2013.01); A61B 2018/00791 (2013.01); A61F 2009/00844 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ophthalmic surgical system for performing a surgical procedure on an eye, the system comprising:
a laser device comprising:
a laser source configured to generate a laser beam comprising a plurality of pulses; and
a scanner configured to direct the pulses towards tissue of the eye according to a laser focal spot pattern;
a camera configured to capture a plurality of surgical images of the eye; and
a computer configured to:
instruct the laser device to direct the pulses towards the eye according to the laser focal spot pattern;
access and monitor the plurality of surgical images of the eye;
identify, from the surgical images of the eye, an interfering object, the interfering object comprising at least one of: a part of a medical personnel's body, a glove covering the part of the medical personnel's body, or an eyelash of a patient; and
modify control of the pulses to compensate for the interfering object by:
determining pulses that are blocked by the interfering object;
suspending emission of pulses that are blocked by the interfering object;
predicting a path of the interfering object; and
emitting at least one of the suspended pulses when the predicted path indicates the interfering object is no longer blocking the pulses.