A cardiac rhythm management apparatus includes a proximal housing, a distal housing and a lead. The proximal housing includes a first energy storage device. The distal module is implantable within a patient's heart, and includes a second energy storage device, at least one electrode, and a control module....http://www.google.de/patents/US20060149331?utm_source=gb-gplus-sharePatent US20060149331 - Method for digital cardiac rhythm management
