Medical and surgical apparatus and instruments for use in intra and extra corporal blood purification, namely, blood filters, filter delivery systems for the placement of blood filters, blood component separation apparatus for medical purposes, blood transfusion apparatus; filters for blood and blood components; apparatus for performing peritoneal dialysis, ultrafiltration, hemofiltration and hemodiafiltration, namely, peritoneal dialysis apparatus, hemofiltration apparatus, and hemodiaylysis...