US 11,745,018 B2
Method and system for dynamic device-based delay adjustment
Nima Badie, Berkeley, CA (US); Carin Folman, Bedford, MA (US); Jennifer Rhude, Carbondale, IL (US); and Aditya Goil, Stevenson Ranch, CA (US)
Assigned to Pacesetter, Inc., Sylmar, CA (US)
Filed by Pacesetter, Inc, Sylmar, CA (US)
Filed on Feb. 1, 2022, as Appl. No. 17/590,462.
Application 17/590,462 is a continuation of application No. 16/574,930, filed on Sep. 18, 2019, granted, now 11,273,312.
Claims priority of provisional application 62/734,817, filed on Sep. 21, 2018.
Prior Publication US 2022/0233864 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/365 (2006.01); A61N 1/368 (2006.01)
CPC A61N 1/3682 (2013.01) [A61N 1/36592 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for dynamic device based AV delay adjustment, the method comprising:
providing electrodes configured to be located proximate to an atrial (A) site and a right ventricular (RV) site;
utilizing one or more processors for:
detecting an atrial paced (Ap) event or atrial sensed (As) event;
measuring an AV interval corresponding to an interval between the Ap event or the As event and a sensed ventricular (Vs) event;
automatically dynamically adjusting a first AV delay based directly on the measured AV interval to define a corresponding one of a paced or sensed AV delay (AVDp or AVDs);
identifying a scale factor, the scale factor representing a relation between a base As-Vs interval and a base Ap-Vs interval;
calculating a second AV delay by scaling the first AV delay based on the scale factor to define a corresponding other one the AVDp or AVDs; and
managing a pacing therapy, utilized by the IMD, based on the AVDp and AVDs.