Patent ID: 7532933

Claim:
A system comprising: a wireless electrostimulation electrode assembly comprising electrostimulation electrodes, the wireless electrostimulation electrode assembly sized and shaped for implant at a myocardial site using a percutaneous, transluminal, catheter delivery system, the wireless electrostimulation electrode assembly configured to receive electromagnetic energy from a source outside the myocardium; a source of electromagnetic energy sized and shaped for placement within a person's body outside the myocardium and separate and detached from the wireless electrostimulation electrode assembly, the source of electromagnetic energy including or conductively coupled to sensing electrodes that are configured to sense a locally measured electrogram to time an electrostimulation of the heart by wirelessly sending a command to the wireless electrostimulation electrode assembly to electrostimulate the myocardium; wherein the source of electromagnetic energy comprises an electronic control circuit, a transmit circuit, a battery, and an antenna; and wherein the locally measured electrogram is sensed by the sensing electrodes included in or conductively coupled to the source of electromagnetic energy.