Patent ID: 9616230
Date: 2017-04-11
CPC Classifications: A61N

Claim:
1. A method of operating an implantable neuromodulator coupled to an electrode array implanted adjacent tissue of a patient having a medical condition, comprising: calculating an index for each of a plurality of modulation parameter sets to provide each of the plurality of modulation parameter sets with a respective calculated index, wherein each modulation parameter set includes a respective plurality of modulation parameters, and wherein the respective calculated index for each of the plurality of modulation parameter sets is calculated as a function of the respective plurality of modulation parameters; serially conveying electrical modulation energy to the tissue in accordance with each of the plurality of modulation parameter sets; causing the patient to perceive paresthesia in response to the conveyance of the electrical modulation energy to the tissue in accordance with one of the plurality of modulation parameter sets; identifying the respective calculated index for the one of the plurality of modulation parameter sets as a perception threshold index based on the perceived paresthesia; storing the identified perception threshold index; determining a new modulation parameter set for a sub-threshold therapy based on the identified perception threshold index; and delivering the sub-threshold therapy, including conveying sub-threshold electrical modulation energy to the tissue in accordance with the new modulation parameter set.