US 12,433,694 B2
Hip replacement navigation system and method
Nicholas van der Walt, Laguna Hills, CA (US); Matthew Ryan, Aliso Viejo, CA (US); and Jonathan Nielsen, Aliso Viejo, CA (US)
Assigned to OrthAlign, Inc., Irvine, CA (US)
Filed by OrthAlign, Inc., Irvine, CA (US)
Filed on Oct. 31, 2024, as Appl. No. 18/933,970.
Application 18/933,970 is a continuation of application No. 18/429,933, filed on Feb. 1, 2024, granted, now 12,144,567.
Application 18/429,933 is a continuation of application No. 18/299,996, filed on Apr. 13, 2023, granted, now 11,911,119, issued on Feb. 27, 2024.
Application 18/299,996 is a continuation of application No. 16/794,827, filed on Feb. 19, 2020, granted, now 11,653,981, issued on May 23, 2023.
Application 16/794,827 is a continuation of application No. 15/474,037, filed on Mar. 30, 2017, granted, now 10,603,115, issued on Mar. 31, 2020.
Application 15/474,037 is a continuation of application No. 13/800,620, filed on Mar. 13, 2013, granted, now 9,649,160, issued on May 16, 2017.
Claims priority of provisional application 61/761,617, filed on Feb. 6, 2013.
Claims priority of provisional application 61/683,167, filed on Aug. 14, 2012.
Prior Publication US 2025/0082413 A1, Mar. 13, 2025
Int. Cl. A61B 34/20 (2016.01); A61B 17/17 (2006.01); A61B 90/10 (2016.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01); A61F 2/34 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 17/1746 (2013.01); A61B 90/10 (2016.02); A61F 2/4609 (2013.01); A61F 2/4657 (2013.01); A61B 2034/2048 (2016.02); A61B 2034/2068 (2016.02); A61F 2/30942 (2013.01); A61F 2/34 (2013.01); A61F 2002/4687 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A navigation system comprising:
an anchor portion configured to couple to a pelvis of a patient,
a support platform configured to couple to the anchor portion, wherein the anchor portion and the support platform are separable such that the support platform is configured to be coupled the anchor portion after the anchor portion is coupled the pelvis of the patient; and
an orientation sensing device configured to couple to the support platform, wherein the support platform and the orientation sensing device are separable such that the orientation sensing device is configured to be coupled to the support platform after the support platform is coupled to the anchor portion,
wherein the orientation sensing device comprises at least one accelerometer and at least one gyroscope, wherein the orientation sensing device is configured to register the femur relative to a plane prior to and after placement of an acetabular shell to confirm an aspect of a relative orientation of the femur comprising leg length, joint offset, or rotational orientation of the femoral neck, wherein the plane is calculated from data of the orientation sensing device, wherein the plane is a basis for placement of a cup portion of a hip prosthesis.