Patent ID: 8694118
Filing Date: 2014-04-08
Classification: A61N

Abstract:
1. An implantable medical device for providing an electrical neurostimulation therapy to a patient, the implantable medical device comprising: a ramping signal controller configured to generate via a ramping signal generator a first electrical signal comprising a first ramping portion which is based on a first parameter including at least one of an amplitude, a rate of change of the amplitude, a time period of the rate of change of the amplitude, a pulse width, a rate of change of the pulse width, a time period of a rate of change of the pulse width, a frequency, a rate of change of the frequency, a time period of a rate of change of the frequency, and a duration of a time period of the first ramping portion, the first parameter having a first value; the first electrical signal being applied to a target location of the patient's body; the ramping signal controller being configured to determine via an efficacy feedback unit a second value for the first parameter for a second electrical signal based on a neural conditioning value, the second value being different than the first value and the second value having a randomized portion; the ramping signal controller being further configured to generate via the ramping signal generator the second electrical signal comprising a second ramping portion based on the second value, wherein the second value is chosen by the ramping signal controller to reduce neural conditioning; and wherein the second electrical signal is applied to the target location of the patient's body.