A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart beats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable...http://www.google.es/patents/US20070078491?utm_source=gb-gplus-sharePatente US20070078491 - THIRD HEART SOUND ACTIVITY INDEX FOR HEART FAILURE MONITORING
THIRD HEART SOUND ACTIVITY INDEX FOR HEART FAILURE MONITORING
Número de solicitud: 11/465,878 Número de publicación: US 2007/0078491 A1 Fecha de presentación: 21 Ago 2006 Patente emitida: US8211033 ( Fecha de emisión 3 Jul 2012)