What is Epidural Stimulation?
Epidural stimulation applies a continuous electrical current to specific locations on the posterior structures of the lumbar spinal cord. The surgically implanted device sits over the spinal cord protective coating, where it is able to stimulate locomotor-like activity. Epidural stimulation can be offered to patients with both incomplete and complete injuries.
The Central Pattern Generator (CPG) is a control centre inside the spinal cord that interprets sensory information. Epidural stimulation activates the spinal cord nerve circuitry with impulses that would ordinarily originate in the brain.
The device activates the para-sympathetic nervous system, which is not the original route via which brain connects with the limbs, so even if the spinal cord is fully injured, there is still an alternative route to connect to the lower parts of the body. The signal that is conducted through this para sympathetic system is low strength, so it needs enhancement and extra power from the device.