US 12,011,231 B2
Method for correcting electrode positions of an elongated medical device
Eitan Oren, Haifa (IL)
Assigned to ST JUDE MEDICAL INTERNATIONAL HOLDING S.À R.L., Luxembourg (LU)
Appl. No. 17/435,633
Filed by ST JUDE MEDICAL INTERNATIONAL HOLDING S.À.R.L., Luxembourg (LU)
PCT Filed Mar. 4, 2020, PCT No. PCT/US2020/021026
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/181006, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/813,996, filed on Mar. 5, 2019.
Prior Publication US 2022/0142713 A1, May 12, 2022
Int. Cl. A61B 34/20 (2016.01); A61B 5/00 (2006.01); A61B 5/06 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 5/062 (2013.01); A61B 5/6852 (2013.01); A61B 2034/2072 (2016.02)] 16 Claims
OG exemplary drawing
 
1. A method for correcting electrode positions of medical devices configured for disposition within a patient body, the method comprising:
acquiring, from a testing catheter having a plurality of electrodes and a plurality of magnetic sensors, a plurality of data sets, each data set including measured positions of the electrodes and measured positions of the magnetic sensors;
mapping, for each data set, a measured position of each electrode to a calculated electrode position that is determined, at least in part, from the measured positions of the magnetic sensors to generate a correction model, wherein the correction model maps measured electrode positions to calculated electrode positions within a single reference frame;
acquiring a subsequent set of measured electrode positions for a set of electrodes included as part of a clinical usage catheter, wherein the set of electrodes have an equal number and common configuration as the plurality of electrodes of the testing catheter;
inputting the subsequent set of measured electrode positions into the correction model to generate a set of calculated electrode positions, wherein the measured electrode positions and the calculated electrode positions are located within a single reference frame;
generating a catheter shape of the clinical usage catheter based on the set of calculated electrode positions; and
displaying an image of the catheter shape.