US 11,992,235 B2
System to differentiate and identify types of tissue within a region proximate to a working end of a surgical instrument
Amal Chaturvedi, Chicago, IL (US); Hariharan Subramanian, Mundelein, IL (US); Jonathan Gunn, Chicago, IL (US); Shetha Shukair, Chicago, IL (US); and Paul Le Rolland, Chicago, IL (US)
Assigned to Briteseed, LLC, Chicago, IL (US)
Appl. No. 16/077,041
Filed by Briteseed, LLC, Chicago, IL (US)
PCT Filed Feb. 10, 2017, PCT No. PCT/US2017/017436
§ 371(c)(1), (2) Date Aug. 9, 2018,
PCT Pub. No. WO2017/139624, PCT Pub. Date Aug. 17, 2017.
Claims priority of provisional application 62/294,996, filed on Feb. 12, 2016.
Prior Publication US 2019/0046220 A1, Feb. 14, 2019
Int. Cl. A61B 17/29 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/107 (2006.01); A61B 17/00 (2006.01); A61B 17/072 (2006.01); A61B 17/128 (2006.01); A61B 17/32 (2006.01); A61B 18/08 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/29 (2013.01) [A61B 5/02416 (2013.01); A61B 5/1076 (2013.01); A61B 5/489 (2013.01); A61B 2017/00057 (2013.01); A61B 2017/00115 (2013.01); A61B 2017/07214 (2013.01); A61B 17/1285 (2013.01); A61B 2017/2926 (2013.01); A61B 2017/320044 (2013.01); A61B 18/085 (2013.01); A61B 2090/0807 (2016.02); A61B 2505/05 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A surgical system configured to differentiate and identify types of tissue within a region proximate to a working end of a surgical instrument, comprising:
at least one light emitter disposed at the working end of the surgical instrument;
at least one light sensor disposed at the working end of the surgical instrument, facing in a common direction as the at least one light emitter, and configured to receive light emitted from the at least one light emitter and reflected from the region, the at least one light sensor configured to generate a signal comprising a first pulsatile component and a second non-pulsatile component; and
a controller coupled to the at least one light sensor, the controller comprising a splitter configured to separate the first pulsatile component from the second non-pulsatile component and an analyzer configured to differentiate between types of nonvascular tissue within the region proximate to the working end of the surgical instrument based on the second non-pulsatile component and to determine the presence of the vessel within the region proximate to the working end of the surgical instrument based on the first pulsatile component.