US 12,402,836 B2
Method and system for calibrating sensing circuitry of an implanted medical device
Eric Labbe, Sunnyvale, CA (US); Dean Andersen, Santa Clara, CA (US); and Shuo Li, Burbank, CA (US)
Assigned to Pacesetter, Inc., Sylmar (CA)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Jul. 6, 2022, as Appl. No. 17/810,923.
Claims priority of provisional application 63/261,237, filed on Sep. 15, 2021.
Prior Publication US 2023/0083815 A1, Mar. 16, 2023
Int. Cl. A61B 5/00 (2006.01)
CPC A61B 5/686 (2013.01) 20 Claims
OG exemplary drawing
 
1. A system, comprising:
electrodes configured to be implanted in a body;
pulse generator (PG) circuitry to deliver a stimulus to one or more of the electrodes, the stimulus having a signal characteristic of interest (COI);
sensing circuitry configured to define a sensing channel between one or more of the electrodes to sense signals indicative of a physiologic activity of interest, the sensing circuitry further configured to collect a calibration signal over the sensing channel;
wherein the sensing circuitry and PG circuitry are housed within an implantable medical device (IMD);
one or more processors; and
a memory coupled to the one or more processors, the memory configured to store program instructions that are executable by the one or more processors to:
determine a signal COI of the calibration signal;
compare the signal COI of the stimulus to the signal COI of the calibration signal; and
adjust a parameter of the sensing circuitry or PG circuitry based on the comparison.