US 11,957,919 B2
Method and implantable system for constant current pacing
Reza Shahandeh, Tarzana, CA (US); Ninous Davoudi, San Jose, CA (US); Frank Lee, San Leandro, CA (US); David Doudna, Sunnyvale, CA (US); and Jeffery Crook, Belmont, CA (US)
Assigned to Pacesetter, Inc., Sylmar (CA)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Jun. 24, 2021, as Appl. No. 17/357,966.
Prior Publication US 2022/0409908 A1, Dec. 29, 2022
Int. Cl. A61N 1/39 (2006.01); A61N 1/05 (2006.01); A61N 1/365 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/3752 (2013.01) [A61N 1/0563 (2013.01); A61N 1/365 (2013.01); A61N 1/37512 (2017.08); A61N 1/39622 (2017.08)] 20 Claims
OG exemplary drawing
 
1. An implantable system, comprising:
a non-transvenous lead configured to be implanted outside of a heart; and
an implantable medical device (IMD), comprising:
an output configured to be connected at least to the lead;
a current generator (CG) circuit configured to generate pacing pulses;
a switching circuit coupled between the CG circuit and the output;
one or more capacitors coupled in parallel with the CG circuit and the switching circuit; and
one or more processors coupled to the CG circuit and configured to manage the CG circuit to generate the pacing pulses with a constant current at the output.