Patent ID: 9717428
Date: 2017-08-01
CPC Classifications: A61B,A61N

Claim:
1. An implantable medical device, comprising: a stimulation engine; an amplifier; a pair of stimulation nodes; a pair of sensing nodes coupled to the amplifier; an output circuit; a first pair of switches that couples the stimulation engine to the pair of stimulation nodes; a second pair of switches that couples the output circuit to each of the stimulation nodes; a controller coupled to the first pair of switches, the second pair of switches, and the output circuit, the controller being configured to set the first pair of switches to a closed position and set the second pair of switches to an open position during a stimulation pulse, set the second pair of switches to the closed position and set the first pair of switches to the open position during a recharge period, measure a signal captured from the sensing nodes during the stimulation pulse, and set the output circuit to output a voltage potential that is derived from the signal captured from the sensing nodes.