US 11,712,172 B2
Visual guidance for positioning a distal end of a medical probe
Assaf Govari, Haifa (IL); Vadim Gliner, Haifa (IL); and Andres Claudio Altmann, Haifa (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Jun. 8, 2020, as Appl. No. 16/896,099.
Claims priority of provisional application 62/875,770, filed on Jul. 18, 2019.
Prior Publication US 2021/0212591 A1, Jul. 15, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/06 (2006.01); A61B 5/349 (2021.01); A61B 5/367 (2021.01); A61B 5/343 (2021.01); A61B 5/287 (2021.01); A61B 5/00 (2006.01)
CPC A61B 5/066 (2013.01) [A61B 5/287 (2021.01); A61B 5/343 (2021.01); A61B 5/349 (2021.01); A61B 5/367 (2021.01); A61B 5/6853 (2013.01); A61B 5/6858 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method, comprising:
(a) receiving, from an intracardiac catheter, having a distal end comprising a plurality of electrodes, within a heart of a subject, first signals from at least three of the electrodes responsive to electrical activity in myocardial tissue with which the at least three of the electrodes are in contact;
(b) receiving, from at least one of the intracardiac catheter or at least one body surface electrode applied to a body surface of the subject, second signals that are indicative of respective location coordinates of the at least three electrodes within the heart;
(c) processing the second signals so as to compute the respective location coordinates of the at least three electrodes and to determine a geometric center of the respective location coordinates;
(d) generating, based on the first signals and the second signals, an electroanatomical map for an area of the myocardial tissue comprising the determined geometric center;
(e) determining, in the map, a focus of an arrhythmia in the area of the myocardial tissue;
(f) presenting, on a display, a circle; and
(g) presenting, within the circle, a region of the map comprising the geometric center and the focus of the arrhythmia so that the geometric center on the map aligns with a center of the circle, the region of the map presented within the circle indicating a spatial relationship between the geometric center and the focus of the arrhythmia.