Implantable subcutaneous devices and methods employ a lead and/or electrode for cardiac monitoring and/or intervention. The devices and methods may employ one or more fixation elements including, for example, tines, tines with barbs, spring-loaded tines, flexible or collapsible tines, and other tined...http://www.google.es/patents/US7493175?utm_source=gb-gplus-sharePatente US7493175 - Subcutaneous lead with tined fixation
