A hemodialysis and vascular access system comprises a subcutaneous composite PTFE silastic arteriovenous fistula having an indwelling silastic venous end which is inserted percutaneously into a vein and a PTFE arterial end which is anastomosed to an artery. Access to a blood stream within the system...http://www.google.de/patents/US6102884?utm_source=gb-gplus-sharePatent US6102884 - Squitieri hemodialysis and vascular access systems
