Patent ID: 8951211
Filing Date: 2015-02-10
Classification: A61B

Abstract:
1. A method for aligning a prosthetic limb, the method comprising: coupling one or more transducers that measure forces and moments in an anterior-posterior plane and a medial-lateral plane to the prosthetic limb, wherein the prosthetic limb includes load bearing plates that provide articulation between the anterior-posterior plane and the medial-lateral plane, and wherein the prosthetic limb has an initial alignment; attaching the prosthetic limb to a patient; obtaining data representative of the forces and moments in the anterior-posterior plane and the medial-lateral plane, and a torsional moment as the patient walks; modeling, using the data representative of the forces and moments, loading conditions on a surface of a digital model of a residual limb of the patient as the patient walks and comparing the data representative of the forces and moments obtained as the patient walks to a model of alignment; determining a numeric estimation of a geometric misalignment of the prosthetic limb in response to the comparison; and using an adjustment system to adjust components of the prosthetic limb to change the initial alignment of the prosthetic limb to bring the initial alignment closer to an alignment represented by the model of alignment.