The intrapericardial lead includes a lead body having a proximal portion and a flexible, pre-curved distal end portion. The distal end portion carries at least one electrode assembly containing an electrode adapted to engage pericardial tissue. The distal end portion further carries a pre-curved flexible...http://www.google.es/patents/US7899555?utm_source=gb-gplus-sharePatente US7899555 - Intrapericardial lead