US 12,419,693 B2
Applying ablation signals to both sides of tissue
Akram Zoabi, Haifa (IL); Sigal Altman, Ramat Hashofet (IL); Meytal Segev, Haifa (IL); and Fady Massarwa, Baka al Gharbiyya (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Jun. 20, 2022, as Appl. No. 17/844,265.
Prior Publication US 2023/0404677 A1, Dec. 21, 2023
Int. Cl. A61B 34/20 (2016.01); A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61B 34/00 (2016.01); A61B 34/10 (2016.01)
CPC A61B 34/20 (2016.02) [A61B 18/1492 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00357 (2013.01); A61B 2018/00363 (2013.01); A61B 2018/00577 (2013.01); A61B 2034/107 (2016.02); A61B 2034/252 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A system for providing ablation guidance, comprising:
a display, which is configured to display at least a three-dimensional (3D) anatomical map of an organ having tissue comprising first and second surfaces that are facing one another; and
an ablation catheter for forming a first lesion on the tissue, by applying ablation signals to the first surface of the tissue;
a processor, which is configured to:
receive a first position of the first lesion formed by the ablation catheter ablating the first surface;
calculate, on the second surface, a second position that is facing the first position by: (a) selecting two or more locations on the second surface, (b) calculating two or more distances, respectively, between: (i) the first position and (ii) each of the two or more locations, and (iii) selecting the second position from among the two or more locations, based on a shortest distance selected among the two or more distances;
determine the calculated second position to be a position for a marker, based on the selected shortest distance; and
display, over the 3D anatomical map, the marker indicative of the second position, for guiding a user to produce on the second surface of the tissue a second lesion facing the first lesion by applying ablation signals to the second surface of the tissue.