US 12,186,136 B2
Systems and methods for intraoperatively measuring anatomical orientation
Saurav V. Gupta, Medway, MA (US); Mark Hall, Bridgewater, MA (US); Dennis Chien, West Chester, PA (US); and Michael J. O'Neil, West Barnstable, MA (US)
Assigned to Medos International Sàrl, Le Locle (CH)
Filed by Medos International Sarl, Le Locle (CH)
Filed on Sep. 30, 2022, as Appl. No. 17/957,866.
Application 17/957,866 is a continuation of application No. 15/429,566, filed on Feb. 10, 2017, granted, now 11,464,596.
Claims priority of provisional application 62/344,642, filed on Jun. 2, 2016.
Claims priority of provisional application 62/294,730, filed on Feb. 12, 2016.
Prior Publication US 2023/0157782 A1, May 25, 2023
Int. Cl. A61B 90/00 (2016.01); A61B 5/00 (2006.01); A61B 5/06 (2006.01); A61B 17/00 (2006.01); A61B 17/17 (2006.01); A61B 17/56 (2006.01); A61B 17/88 (2006.01); A61B 34/00 (2016.01); A61B 34/20 (2016.01)
CPC A61B 90/06 (2016.02) [A61B 5/062 (2013.01); A61B 5/4566 (2013.01); A61B 17/1703 (2013.01); A61B 34/20 (2016.02); A61B 34/25 (2016.02); A61B 90/08 (2016.02); A61B 2017/00199 (2013.01); A61B 2017/00221 (2013.01); A61B 2017/0023 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00734 (2013.01); A61B 17/56 (2013.01); A61B 2017/565 (2013.01); A61B 17/8863 (2013.01); A61B 2034/2048 (2016.02); A61B 2034/2051 (2016.02); A61B 2034/2065 (2016.02); A61B 2034/252 (2016.02); A61B 2034/254 (2016.02); A61B 2090/067 (2016.02); A61B 2090/0807 (2016.02); A61B 2090/365 (2016.02); A61B 2090/376 (2016.02); A61B 2090/3916 (2016.02); A61B 2090/3966 (2016.02); A61B 2090/3983 (2016.02); A61B 2090/3991 (2016.02); A61B 2505/05 (2013.01); A61B 2562/0219 (2013.01); A61B 2562/0223 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of measuring an absolute spinal angle, comprising:
coupling first and second sensors to respective first and second portions of a patient's spine;
capturing at least one image of the first and second sensors and the patient's spine using an imaging device;
identifying in the at least one captured image first and second vertebral endplates that define the absolute spinal angle to be measured;
calculating, by a processor, a first compensation angle between the first endplate and the first sensor in the at least one captured image;
calculating, by a processor, a second compensation angle between the second endplate and the second sensor in the at least one captured image;
obtaining a relative angle measured between the first and second sensors;
adjusting, by a processor, the relative angle based on the first and second compensation angles to calculate the absolute spinal angle; and
communicating the absolute spinal angle to a user.