Cervicomedullary stimulator

Just wondering if anyone has heard of a Cervicomedullary Stimulator? It's for Trigeminal Deafferentation. I had a suffessful MVD July of 2010. But I have developed all this facial pain due to I think having Gamma Knife 2 yrs. prior to the MVD. The nerve was so damaged before I had the MVD. It's different pain. But as time goes by it has gotten much worse. It never goes away. Always there 24/7.

I have a peripheral nerve stimulator for TN 2 pain. (The chronic burning boring type pain). I have had it for two years, and it works very well. I’m not sure if this is the same thing, but I would be happy to answer any questions if I can.