Patent ID: 9713720
Date: 2017-07-25
CPC Classifications: A61B,A61N

Claim:
1. A neurostimulation system, comprising: an implantable device connected to at least two implantable neurostimulation leads, the implantable device including a neurostimulator configured to deliver, using a first set of stimulation parameters, electrical energy through the neurostimulation leads to spinal cord tissue; and an external device configured to communicate with the implantable device, wherein the neurostimulation system includes: wherein the neurostimulator is configured to use the first set of stimulation parameters to stimulate a virtual multipole defining a volume of activation relative to the spinal cord tissue, and to use the second set of stimulation parameters, which was generated using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, to stimulate the virtual multipole wherein the second set of stimulation parameters include fractionalized amplitude values that emulate the virtual multipole.