Patent ID: 8108028

Claim:
An in vivo deep brain medical probe system, comprising: an MRI compatible cannula comprising a plurality of generally concentric axially extending tubes with a receiving bore; an elongate antenna member with a core comprising a conductor and an insulating layer configured to slidably advance through the cannula bore to cooperate with the cannula to define an MRI receive antenna, wherein the elongate antenna member comprises a center conductor and at least one recording electrode disposed on a distal portion thereof, wherein the probe system has at least two operational modes, including a first MRI signal operational mode wherein the antenna member receives MRI signals from local tissue and a second operational recording signal mode wherein the recording electrode obtains electrical signals from local target tissue; a tuning circuit coupleable to the MRI receive antenna to tune the MRI receive antenna to a MRI frequency; a RF decoupling circuit configured to isolate the MRI receive antenna during an MRI excitation RF transmission; and a recording splitter circuit to decouple the MRI receive antenna during the recording mode.