US 12,279,917 B2
Real-time surgical reference indicium apparatus and methods for intraocular lens implantation
Ashok Burton Tripathi, Santa Barbara, CA (US)
Assigned to Alcon, Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Jun. 22, 2023, as Appl. No. 18/339,785.
Application 14/929,801 is a division of application No. 12/390,388, filed on Feb. 20, 2009, granted, now 9,173,717, issued on Nov. 3, 2015.
Application 18/339,785 is a continuation of application No. 17/235,969, filed on Apr. 21, 2021, granted, now 11,723,746.
Application 17/235,969 is a continuation of application No. 14/929,801, filed on Nov. 2, 2015, granted, now 11,039,901, issued on Jun. 22, 2021.
Prior Publication US 2023/0329831 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 90/00 (2016.01); A61B 34/10 (2016.01); A61F 2/16 (2006.01)
CPC A61B 90/37 (2016.02) [A61F 2/16 (2013.01); A61B 2034/107 (2016.02); A61B 2090/365 (2016.02)] 18 Claims
OG exemplary drawing
 
1. An apparatus for stereoscopic guidance of a surgical procedure on an eye of a patient, the apparatus comprising:
a photosensor configured to record a patient specific pre-operative still image of the eye;
at least one real-time, multidimensional visualization module including a second photosensor and an image processor, the at least one real time, multidimensional visualization module being configured to record left and right images of the eye, the eye having at least one identifiable physical feature;
at least one display in communication with the at least one real time, multidimensional visualization module;
wherein the image processor is adapted to produce, using the left and right images, at least one real time stereoscopic multidimensional visualization of the eye on the at least one display;
wherein the at least one identifiable physical feature is characterized by a first depth in the at least one real time stereoscopic multidimensional visualization;
at least one data processor configured to utilize the patient specific pre-operative still image to:
i) produce at least one virtual surgical reference indicium characterized by a second depth, and
ii) align the at least one virtual surgical reference indicium to the eye in conjunction with the real-time stereoscopic multidimensional visualization of at least a portion of the eye; and
a user input device configured for selectively adjusting at least a portion of the patient specific pre-operative still image to align the first depth with the second depth.