Patent ID: 7182867
Filing Date: 2007-02-27
Classification: A61M,B01D

Abstract:
1. A system for removing waste from the blood of an individual comprising an access device for withdrawing blood from an individual; a blood processing device, including an inlet; a first flow path in fluid communication between said access device and said inlet for conveying whole blood from the individual to said blood processing device; said blood processing device comprising a gap defined between an inner surface that is located about an axis and an outer surface that is concentric with the inner surface, said inlet and a first outlet communicating with the gap for continuous flow of blood between the inlet and the first outlet, at least one of the inner and outer surfaces carrying a hemofiltration membrane having one surface facing the gap and another surface facing away from the gap and said membrane having a pore size sufficiently small to prevent passage of molecules greater than about 50,000 Daltons so as to prevent the passage of albumin, a second outlet communicating with the membrane surface facing away from the gap; and a third flow path in communication with said second outlet for conveying plasma water and waste material away from said blood processing device.