Artificial implantable active and passive girdles include a heart assist system with an artificial myocardium employing a number of flexible, non-distensible tubes with the walls along their long axes connected in series to form a cuff and a passive girdle is wrapped around a heart muscle which has dilatation...http://www.google.fr/patents/US6508756?utm_source=gb-gplus-shareBrevet US6508756 - Passive cardiac assistance device
