US 11,883,677 B2
Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses
David A Anderson, Stanchfield, MN (US); Mark T. Marshall, Forest Lake, MN (US); Vladimir P. Nikolski, Blaine, MO (US); Robert T. Sawchuk, Roseville, MN (US); Amy E. Thompson-Nauman, Ham Lake, MN (US); John D. Wahlstrand, Shoreview, MN (US); and Gregory A. Younker, White Bear Township, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Jul. 7, 2022, as Appl. No. 17/860,043.
Application 17/860,043 is a continuation of application No. 16/658,473, filed on Oct. 21, 2019, granted, now 11,406,838.
Application 16/658,473 is a continuation of application No. 15/368,197, filed on Dec. 2, 2016, granted, now 10,449,362, issued on Oct. 22, 2019.
Claims priority of provisional application 62/262,412, filed on Dec. 3, 2015.
Prior Publication US 2022/0339455 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/39 (2006.01); A61N 1/362 (2006.01); A61N 1/365 (2006.01); A61N 1/37 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/39622 (2017.08) [A61N 1/3621 (2013.01); A61N 1/3622 (2013.01); A61N 1/36521 (2013.01); A61N 1/371 (2013.01); A61N 1/3752 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical device comprising:
therapy circuitry having a plurality of capacitors and an output signal line, the therapy circuitry configured to generate a composite pacing pulse comprising a series of at least two individual pulses by:
generating a first pulse of the at least two individual pulses by selectively coupling a first portion of the plurality of capacitors to the output signal line, the first pulse having a first peak voltage amplitude, and
generating a second pulse of the at least two individual pulses sequentially with the first pulse by selectively coupling a second portion of the plurality of capacitors to the output signal line, the second pulse of the at least two individual pulses having a second peak voltage amplitude different than the first peak voltage amplitude.