Patent ID: 9522271
Filing Date: 2016-12-20
CPC Classification: A61B,A61N

Claim Text:
1. A system, comprising: a stimulator configured to generate stimulation pulses; a respiration signal detector configured to sense a respiration signal; a heart rate variation detector configured to sense a physiologic signal indicative of a heart rate, detect a plurality of heart rates during the delivery of the stimulation pulses to a target site, synchronize the detected heart rates with one or more respiration cycles from the sensed respiration signal by compensating system lag and physiologic lag between the detected heart rates and the respiration signal, and determine a respiration-mediated heart rate variation using the synchronized heart rates; a memory circuit configured to store one or more stimulation parameters; a controller circuit coupled to the stimulator and the heart rate variation detector, the controller circuit configured to control the delivery of the stimulation pulses using the respiration-mediated heart rate variation.