Patent ID: 7894904

Claim:
A system for stimulating brain tissue comprising: an implantable acoustic controller-transmitter configured to be implanted in a body of a patient and generate acoustic energy, wherein the controller-transmitter comprises acoustic transducers disposed in a housing and one or more physiological sensors disposed on an external surface of the housing, and wherein the one or more physiological sensors are configured to detect one or more physiological parameters directly from the body; an implantable acoustic receiver-stimulator comprising a stimulation electrode assembly adapted to be in direct contact with brain tissue, wherein the receiver-stimulator is configured to receive and convert the acoustic energy into an electrical stimulation output delivered to the brain tissue by the stimulation electrode assembly, wherein the electrical stimulation output has at least one of pulse amplitude, pulse duration, duty cycle, and timing, wherein the controller-transmitter is configured to periodically sense the electrical stimulation output of the receiver-stimulator and adjust acoustic energy transmission accordingly in order to compensate for changes in the electrical stimulation output of the receiver-stimulator; and an external programmer configured to program one or more settings of the controller-transmitter.