US 12,471,998 B2
Automated pedicle screw planning
Sean O'Connor, San Diego, CA (US); Adrien Ponticorvo, San Diego, CA (US); Samuel Kadoury, Mont-Royal (CA); and William Trung Le, Montreal (CA)
Assigned to NuVasive, Inc., San Diego, CA (US)
Filed by NuVasive, Inc., San Diego, CA (US)
Filed on Jan. 3, 2023, as Appl. No. 18/149,562.
Prior Publication US 2024/0216067 A1, Jul. 4, 2024
Int. Cl. A61B 34/10 (2016.01)
CPC A61B 34/10 (2016.02) [A61B 2034/105 (2016.02); A61B 2034/107 (2016.02); A61B 2034/108 (2016.02)] 12 Claims
OG exemplary drawing
 
1. A method for generating custom pedicle screw trajectories comprising:
receiving a scan of a spine from an imaging device;
identifying positions of one or more vertebra and one or more components of the one or more vertebra in the scan, including any one of (i) an endplate, (ii) a pedicle, (iii) laminae, (iv) facets, and (v) a combination of (i)-(iv);
determining, by a screw trajectory planning algorithm stored in a computer, an initial screw trajectory plan using the positions of the one or more vertebra and the one or more components, the initial screw plan trajectory defining an initial position and initial orientation for a screw; and
determining, by the screw trajectory planning algorithm, a revised screw trajectory plan by revising the initial screw trajectory plan according to weighted factors associated with an entry angle of a selected pedicle screw into the one or more vertebra relative to a reference plane and dimensions of the selected pedicle screw.