Patent ID: 9597507
Date: 2017-03-21
CPC Classifications: A61N

Claim:
1. A method for delivering electrical stimulation therapy to a patient, the method comprising: delivering an electrical stimulation therapy to the patient via a medical device, the electrical stimulation therapy comprising a first electrical stimulation pulse delivered to the patient via a first electrode and a second electrical stimulation pulse delivered to the patient via a second electrode, wherein the first electrical stimulation pulse and second electrical stimulation pulse have a same polarity and are delivered as paired pulses with respect to each other such that a first charge of the first electrical stimulation pulse and a second charge of the second stimulation pulse build on each other to generate a combined charge in tissue of the patient, and the combined charge of the first electrical stimulation pulse and the second electrical stimulation pulse evoke a compound action potential within the patient; sensing, at a plurality of sensing locations, the compound action potential evoked by the combined charge of the first electrical stimulation pulse and the second electrical stimulation pulse; comparing a magnitude of the sensed compound action potential at respective sensing locations of the plurality of sensing locations to each other; and adjusting, based on the comparison, one or more parameters of the electrical stimulation therapy to move a region of tissue activated by the compound action potential evoked by the combined charge of the first electrical stimulation pulse and the second electrical stimulation pulse.