Patent ID: 7792588

Claim:
An implantable medical system comprising: an implantable medical device (IMD); a transceiver antenna lead including: a first end configured for coupling to the IMD; a second end; and a radio frequency (RF) lead antenna proximate the second end; and a wireless semi-passive RF probe including: an electrode arrangement configured to establish electrical contact with body tissue/fluid, a capacitor coupled to the electrode arrangement, an RF probe antenna, probe memory to store processing instructions, and a processing architecture coupled to the RF probe antenna and configured to execute processing instructions stored in the probe memory to control delivery of therapy to body tissue/fluid or sensing of electromagnetic activity associated with body tissue/fluid; wherein the IMD is configured to control activation of the RF probe by transmitting an activation signal to the RF probe antenna via the RF lead antenna to command the processing architecture to execute processing instructions stored in the probe memory to control the delivery of therapy to body tissue/fluid or the sensing of electromagnetic activity associated with body tissue/fluid via the electrode arrangement.