US 12,279,878 B1
Methods and systems for classifying a heartbeat associated with patients in sinus rhythm
Chandan Chikkanayakanahally Kodandaswamy, Tumakuru (IN); Nandeesha Gowdagere Madalingaiah, Ramanagara (IN); and Rohit Jain, Danville, CA (US)
Assigned to Anumana, Inc., Cambridge, MA (US)
Filed by NEUTRACE, INC., Longwood, FL (US)
Filed on Nov. 30, 2023, as Appl. No. 18/525,673.
Application 18/525,673 is a division of application No. 17/339,999, filed on Jun. 5, 2021, granted, now 11,864,902.
Int. Cl. A61B 5/367 (2021.01); A61B 5/00 (2006.01); A61B 5/283 (2021.01); A61B 5/35 (2021.01)
CPC A61B 5/367 (2021.01) [A61B 5/283 (2021.01); A61B 5/35 (2021.01); A61B 5/746 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method, for electrophysiological mapping of a heart, comprising:
inserting a mapping catheter into a heart;
driving body surface electrodes with current pulses:
measuring electrical recordings for the heart using the mapping catheter inserted into the heart and due to the driven current pulses;
calculating a time of QRS onset for ventricular depolarization of the heart;
selecting portions of the electrical recordings indicative of a heartbeat;
calculating, for each selected portion, a local activation time:
identifying a chamber of the heart based on a relative position of the local activation time and the time of QRS onset for ventricular depolarization;
receiving input of a target chamber of the heart desired to be mapped;
detecting when the identified chamber is within said target chamber; and
providing an alert when the identified chamber is no longer within said target chamber.