An alignment device in the form of a flexible material disk having a planar configuration is removably adhered to the sternum of a person on whom cardiopulmonary resuscitation (CPR) is being performed, wherein the disk includes indicia formed on an outer surface thereof. The indicia is at least partially...http://www.google.es/patents/US6427685?utm_source=gb-gplus-sharePatente US6427685 - Device to facilitate the performance of cardiopulmonary resuscitation
Device to facilitate the performance of cardiopulmonary resuscitation