Patent ID: 6103117
Filing Date: 2000-08-15
Classification: B01D,Y10T

Abstract:
A module for the treatment of blood for removal therefrom of undesired material, which module comprises a housing and, disposed within the housing, a hollow fiber membrane, which housing has at least a dialysate inlet to allow entry into the housing of dialysate and which hollow fiber membrane has an internal periphery defining a blood flow conduit and an external periphery for contact thereof with the dialysate in the housing, the hollow fiber membrane being capable of allowing selective passage, across said membrane from said internal to said external periphery thereof, of said undesired material, whereby during passage of the blood through said blood flow conduit said undesired material in the blood passes across said membrane into the dialysate, the hollow fiber membrane being characterized by(i) an albumin permeability no more than 0.5%;(ii) per membrane area of 1.6 m.sup.2, an in vitro urea clearance of at least 195 ml/min;(iii) per membrane area of 1.6 m.sup.2, an in vitro phosphorus clearance of at least 180 ml/min;(iv) per membrane area of 1.8 m.sup.2, a .beta..sub.2 -microglobulin clearance of at least 44 ml/min.