US 12,251,320 B2
Systems and methods for orthopedic implant fixation
Niall Patrick Casey, Carlsbad, CA (US); and Michael J. Cordonnier, Carlsbad, CA (US)
Assigned to Carlsmed, Inc., Carlsbad, CA (US)
Filed by Carlsmed, Inc., Carlsbad, CA (US)
Filed on Aug. 3, 2022, as Appl. No. 17/880,277.
Application 17/880,277 is a continuation of application No. 16/383,215, filed on Apr. 12, 2019, granted, now 11,439,514.
Claims priority of provisional application 62/658,389, filed on Apr. 16, 2018.
Prior Publication US 2023/0086886 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/44 (2006.01); A61B 17/70 (2006.01); A61B 17/80 (2006.01); A61B 34/10 (2016.01); A61F 2/30 (2006.01); A61B 17/56 (2006.01)
CPC A61F 2/4455 (2013.01) [A61B 17/7058 (2013.01); A61B 17/8033 (2013.01); A61B 34/10 (2016.02); A61F 2/30749 (2013.01); A61B 2017/568 (2013.01); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/108 (2016.02); A61F 2/30965 (2013.01); A61F 2/442 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A computer-implemented method of designing one or more patient-specific spinal implants, the method comprising:
generating a three-dimensional virtual model of at least a portion of a subject's spinal anatomy;
receiving, from a user, one or more proposed changes to the subject's spinal anatomy, wherein the one or more proposed changes include changes to a spatial relationship between at least two vertebrae;
adjusting the subjects' spinal anatomy in the three-dimensional virtual model to change the spatial relationship between the at least two vertebrae based on the one or more proposed changes;
measuring the adjusted spinal anatomy in the three-dimensional virtual model to obtain one or more measurements associated with at least one of a pelvic tilt, sagittal alignment, or lumbar lordosis of the adjusted spinal anatomy;
comparing the one or more measurements to one or more predictive guidelines to determine if the adjusted spinal anatomy conforms to the one or more predictive guidelines, wherein the predictive guidelines include predetermined values for one or more of pelvic tilt, sagittal alignment, or lumbar lordosis; and
at least partially in response to the adjusted spinal anatomy conforming to the one or more predictive guidelines, designing one or more patient-specific implants for achieving the corrected spinal geometry when implanted in the subject.