Patent ID: 9113807
Filing Date: 2015-08-25
Classification: A61B,H04L

Abstract:
1. A method for determining a motion compensated location of an electrode of a medical device within a body of a patient, comprising the steps of: (A) acquiring (i) patch electrode impedance data using associated body surface electrodes and (ii) electrode location data using said electrode of said medical device; (B) mean-adjusting, using a computer system, the patch electrode impedance data associated with body surface electrodes and the electrode location data associated with said electrode; (C) determining, using the computer system, an acquired set of weights such that a linear combination of the product of the weights and mean-adjusted patch impedance data correspond to the mean-adjusted electrode location data; (D) repeating steps (A), (B), and (C) for a plurality of different time periods and producing a plurality of sets of weights, and as each successive acquired sets of weights is determined in step (C), (E) determining, using the computer system, a compensation signal using the reference set of weights and patch electrode impedance data wherein the compensation signal corresponds to motion artifacts associated with an uncompensated electrode location and wherein the compensation signal is configured to reduce such motion artifacts associated with the uncompensated electrode location; (F) computing, using the computer system, the motion compensated electrode location using the uncompensated electrode location and the compensation signal; and (G) generating a visual representation of the medical device on a display based on the motion compensated electrode location.