US 11,949,545 B2
Compensation of motion in a moving organ using an internal position reference sensor
Amit Cohen, Binyamina (IL); Uzi Eichler, Haifa (IL); and Alon Izmirli, Ganot Hadar (IL)
Assigned to ST. JUDE MEDICAL INTERNATIONAL HOLDING S.À R.L., Luxembourg (LU)
Filed by St. Jude Medical International Holding S.à r.l., Luxembourg (LU)
Filed on Jan. 5, 2021, as Appl. No. 17/141,777.
Application 17/141,777 is a division of application No. 16/059,557, filed on Aug. 9, 2018, granted, now 10,917,281.
Application 16/059,557 is a continuation of application No. 12/650,932, filed on Dec. 31, 2009, granted, now 10,069,668, issued on Sep. 4, 2018.
Prior Publication US 2021/0168013 A1, Jun. 3, 2021
Int. Cl. H04L 27/34 (2006.01); A61B 6/00 (2006.01); A61B 6/12 (2006.01); A61B 34/20 (2016.01); G06T 7/33 (2017.01); A61B 6/50 (2024.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC H04L 27/3405 (2013.01) [A61B 6/12 (2013.01); A61B 6/5264 (2013.01); A61B 6/527 (2013.01); A61B 34/20 (2016.02); G06T 7/33 (2017.01); A61B 6/503 (2013.01); A61B 6/5235 (2013.01); A61B 2017/00703 (2013.01); A61B 2034/2051 (2016.02); A61B 2090/376 (2016.02); A61B 2090/3983 (2016.02); G06T 2207/10121 (2013.01); G06T 2207/30021 (2013.01); G06T 2207/30048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining a current position of an invasive medical device within a patient's body, comprising:
associating a first localization sensor with the medical device and acquiring a first series of position readings from the first localization sensor over a time interval representing a first movement of the first localization sensor over the time interval;
associating a second localization sensor with the medical device and acquiring a second series of position readings from the second localization sensor over the time interval representing a second movement of the second localization sensor over the time interval;
determining a respective weighting factor associated with the first and second movements corresponding to a respective correlation level of the first and second movements relative to a motion of the medical device;
generating a function comprising a weighted summation, using the determined weighting factors, of individual displacement vectors respectively attributed to the first and second movements; and
determining the current position of the medical device using a prior determined position of the medical device and the generated function.