Patent ID: 11864902
Assignee: NEUTRACE INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method, comprising:
inserting a mapping catheter into a heart of a subject;
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; and
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, wherein
the chamber of the heart is identified as an atrial chamber when the local activation time is earlier than the QRS onset, and
the chamber of the heart is identified as a ventricular chamber when the local activation time is later than the QRS onset.