The invention provides a vascular access system and methods for facilitating long-term, repeated access to any of a patient's vascular systems. This is provided by an access tube apparatus adapted for anastomosis to an anatomical vessel. The access tube is occluded with an fluid occluder that fits within...http://www.google.es/patents/US7124570?utm_source=gb-gplus-sharePatente US7124570 - Apparatus and methods for fluid occlusion of an access tube anastomosed to an anatomical vessel
Apparatus and methods for fluid occlusion of an access tube anastomosed to ...