Northstar Neuroscience  
Stroke: Aphasia

Renova-ST™ Cortical Stimulation System
Background
Scientific Literature

 


Renova-ST™ Cortical Stimulation System

The Renova-ST™ Cortical Stimulation System is designed to enhance recovery of stroke patients who suffer from Broca’s aphasia (difficulty speaking). During a stroke, portions of the brain affecting speech and language (for example, Broca’s area) may be damaged. Often, nearby neural pathways will attempt to compensate for the damage, a concept called neuroplasticity. Cortical stimulation is delivered to this new neuroplastic area concurrently with rehabilitation to enhance speech and language function.

The Renova-ST System consists of an implanted pulse generator (IPG), cortical stimulation lead and a programming system.

  • Implantable pulse generator (IPG) - an electrical stimulator that is implanted in the pectoral (upper chest) area.
  • Cortical stimulation lead - an electrode connected to the IPG, which is used to deliver stimulation to the cortex. The electrode is placed over the dura, a protective membrane that covers the brain's surface.
  • Programming system - a handheld computer, which allows communication with the implanted IPG device. This system allows the clinician to change stimulation parameters and to turn the device on and off.

*Caution: Investigational device. Limited by Federal (or U.S.) law to investigational use.