The Renova-ST™ Cortical Stimulation System is designed to enhance recovery of motor function in stroke patients who suffer from hemiparesis (weakness or loss of movement on one side of the body). The Renova-ST System provides stimulation concurrently with rehabilitation therapy. The stimulation is sub-threshold, which means it cannot be felt by the patient.

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 grid 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 attached to a programming device, that 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.