US 11,969,255 B2
Detection of fractionated signals in stable arrhythmias
Eliyahu Ravuna, Kiryat Ata (IL); Nir Yanovich, Haifa (IL); Natalia Etin Zait, Netanya (IL); Leonid Zaides, Atlit (IL); Meytel Segev, Haifa (IL); and Elad Nakar, Timrat (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Dec. 12, 2021, as Appl. No. 17/548,558.
Prior Publication US 2023/0181086 A1, Jun. 15, 2023
Int. Cl. A61B 5/367 (2021.01); A61B 5/00 (2006.01); A61B 5/283 (2021.01); A61B 5/343 (2021.01); A61B 5/352 (2021.01); A61B 5/364 (2021.01)
CPC A61B 5/367 (2021.01) [A61B 5/283 (2021.01); A61B 5/343 (2021.01); A61B 5/352 (2021.01); A61B 5/364 (2021.01); A61B 5/7475 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a cardiac signal that is sensed by an electrode at a tissue location inside the heart;
identifying fractionations in the cardiac signal;
comparing the fractionations, identified at the tissue location, between first and second cardiac cycles of the cardiac signal;
based on the comparing, estimating a likelihood that the tissue location is causing a stable arrhythmia; and
based on the estimated likelihood, indicating the tissue location to a user as likely to be causing the stable arrhythmia.