Patent ID: 8818504

Claim:
A system of intrathoracic cardiac stimulation devices operable to provide cardiac sensing and energy delivery, comprising: a plurality of autonomous intrathoracic cardiac stimulation devices, each intrathoracic cardiac stimulation device comprising: a housing configured for intrathoracic placement relative to a patient's heart; a fixation arrangement supported by the housing and configured to affix the housing at an implant location within cardiac tissue or cardiac vasculature; an electrode arrangement supported by the housing and configured to sense cardiac activity and deliver stimulation energy to the cardiac tissue or cardiac vasculature; energy delivery circuitry provided in the housing and coupled to the electrode arrangement; detection circuitry provided in the housing and coupled to the electrode arrangement; and a controller provided in the housing and coupled to the energy delivery circuitry and detection circuitry, the controller coordinating delivery of energy to the cardiac tissue or cardiac vasculature in accordance with an energy delivery protocol appropriate for the implant location such that the controller independently coordinates delivery of energy appropriate for the respective implant location at which the housing is affixed.