US 11,937,897 B2
Optical overlay device
Adnan Abbas, Santa Barbara, CA (US); Melanie McWade, Nashville, TN (US); and Anita Mahadevan-Jansen, Nashville, TN (US)
Assigned to AI Biomed Corp, Santa Barbara, CA (US); and Vanderbilt University, Nashville, TN (US)
Filed by AI Biomed Corp., Santa Barbara, CA (US); and Vanderbilt University, Nashville, TN (US)
Filed on Jun. 24, 2022, as Appl. No. 17/849,074.
Application 17/849,074 is a continuation of application No. 17/204,439, filed on Mar. 17, 2021, granted, now 11,403,836.
Application 17/204,439 is a continuation of application No. 16/752,640, filed on Jan. 25, 2020, abandoned.
Application 16/752,640 is a continuation of application No. 15/043,526, filed on Feb. 13, 2016, granted, now 10,579,891, issued on Mar. 3, 2020.
Application 15/043,526 is a continuation in part of application No. 14/822,447, filed on Aug. 10, 2015, abandoned.
Prior Publication US 2022/0327799 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 90/00 (2016.01); G06K 9/32 (2006.01); G06V 10/145 (2022.01); G06V 10/25 (2022.01)
CPC A61B 5/0037 (2013.01) [A61B 5/7445 (2013.01); A61B 90/361 (2016.02); G06V 10/145 (2022.01); G06V 10/25 (2022.01); A61B 5/0071 (2013.01); A61B 2090/366 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A system for distinguishing between different tissues during surgery, the system comprising:
an emitter configured to direct radiation at a pre-determined wavelength toward a region of a patient to illuminate and stimulate at least first and second tissues of the region of the patient;
an imager configured to collect radiation corresponding to the autofluorescence of the first and second tissues having wavelengths above a pre-determined wavelength threshold;
at least one processor for processing images from the imager, the at least one processor configured to distinguish between the radiation from the autofluorescence of the first tissue and the radiation from the autofluorescence of the second tissue based on autofluorescence intensity; and
an overlay device controlled by the at least one processor, the overlay device configured to visibly highlight, in the region of the patient, areas of the autofluorescence of the first tissue.