A method of making a left ventricular assist device (LVAD) using muscle wrapped around a mandrel to form a muscle pouch, the open end of which is sewn to a circular sheet of patch material having connections to one end of each of a pair of vascular grafts, or alternatively to one end of a single vascular...http://www.google.es/patents/US5647380?utm_source=gb-gplus-sharePatente US5647380 - Method of making a left ventricular assist device