US 11,052,255 B2
Auto-threshold test for His-bundle pacing
Amy Jean Brisben, Saint Paul, MN (US); David J. Ternes, Roseville, MN (US); Allan Charles Shuros, St. Paul, MN (US); Deepa Mahajan, North Oaks, MN (US); and David L. Perschbacher, Coon Rapids, MN (US)
Assigned to Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed by Cardiac Pacemakers, Inc., St. Paul, MN (US)
Filed on Jan. 24, 2019, as Appl. No. 16/256,746.
Claims priority of provisional application 62/639,113, filed on Mar. 6, 2018.
Prior Publication US 2019/0275329 A1, Sep. 12, 2019
Int. Cl. A61N 1/368 (2006.01); A61N 1/362 (2006.01); A61N 1/05 (2006.01); A61N 1/37 (2006.01); A61N 1/36 (2006.01); A61B 5/349 (2021.01)
CPC A61N 1/3684 (2013.01) [A61N 1/0573 (2013.01); A61N 1/3621 (2013.01); A61N 1/3682 (2013.01); A61N 1/371 (2013.01); A61B 5/349 (2021.01); A61N 1/0568 (2013.01); A61N 1/36114 (2013.01); A61N 1/36139 (2013.01); A61N 1/3706 (2013.01)] 20 Claims
OG exemplary drawing
 
18. A system for pacing a heart, comprising:
an electrostimulation circuit configured to generate His-bundle pacing (HBP) pulses having a stimulation strength to stimulate a His bundle of the heart;
a sensing circuit configured to sense a physiologic signal, and to detect, from the sensed physiologic signal, a presence or absence of a local His-bundle activation separated from a pacing artifact of the delivered HBP pulses by an isoelectric interval; and
a control circuit configured to classify a capture status as being one of two or more different types of capture status based on the local His-bundle activation and the isoelectric interval that separates the local His-bundle activation and the pacing artifact.