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1. (WO2016064663) SENSING AND ATRIAL-SYNCHRONIZED VENTRICULAR PACING IN AN INTRACARDIAC PACEMAKER

Pub. No.:    WO/2016/064663    International Application No.:    PCT/US2015/055854
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Sat Oct 17 01:59:59 CEST 2015
IPC: A61N 1/37
Applicants: MEDTRONIC, INC.
Inventors: DEMMER, Wade, M.
SHELDON, Todd, J.
GUO, Margaret, G.
Title: SENSING AND ATRIAL-SYNCHRONIZED VENTRICULAR PACING IN AN INTRACARDIAC PACEMAKER
Abstract:
A pacemaker implantable in a chamber of a patient's heart is configured to produce a filtered cardiac electrical signal by filtering a raw cardiac signal by an adjustable filter of a sensing module of the pacemaker. The sensing module is configured to receive the raw cardiac electrical signal comprising R-waves, T-waves and P-waves via electrodes coupled to the sensing module. The pacemaker is further configured to determine if the T-waves are distinct from the P-waves in the filtered cardiac electrical signal and adjust the filter to increase a difference between a feature of the P-waves and a feature of the T-waves in the filtered cardiac signal when the T-waves are not distinct from the P-waves.