US 12,295,664 B2
Systems and methods for volumetric measurement of maximal allowable working volume within a surgical corridor
Lena Mary Houlihan, Tempe, AZ (US); David Naughton, San Francisco, CA (US); and Mark C. Preul, San Francisco, CA (US)
Assigned to Dignity Health, San Francisco, CA (US); and Arizona Board of Regents on Behalf of Arizona State University, Tempe, AZ (US)
Filed by Dignity Health, San Francisco, CA (US); and Arizona Board of Regents on Behalf of Arizona State University, Tempe, AZ (US)
Filed on Nov. 30, 2023, as Appl. No. 18/525,693.
Application 18/525,693 is a continuation of application No. 18/044,037, granted, now 11,832,888, previously published as PCT/US2021/049804, filed on Sep. 10, 2021.
Claims priority of provisional application 63/076,882, filed on Sep. 10, 2020.
Prior Publication US 2024/0099779 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 34/10 (2016.01); A61B 34/00 (2016.01)
CPC A61B 34/10 (2016.02) [A61B 34/25 (2016.02); A61B 2034/107 (2016.02); A61B 2034/256 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a processor in communication with a memory, the memory including instructions executable by the processor to:
convert a plurality of three-dimensional coordinates representative of locations of a plurality of extrema points of a surgical corridor to a two-dimensional coordinate system on a best-fit plane to obtain a plurality of two-dimensional translated extrema points;
determine an area of an irregular polygon enclosed by the plurality of two-dimensional translated extrema points;
determine a height from a location of a structure of interest within the surgical corridor to the best-fit plane; and
determine a volume of surgical freedom within the surgical corridor using the area of the irregular polygon and the height.