A heart pacemaker system has an electrode line with a proximal end which is introduced into a connector of the pacemaker housing, and a distal end having an electrode head attachable to the heart of a user. One or more of the distal or proximal ends of the electrode line, the connector, or a region of...http://www.google.de/patents/US4913147?utm_source=gb-gplus-sharePatent US4913147 - Heart pacemaker system with shape-memory metal components
