SELECTIVE MEMBRANE/SORPTION TECHNIQUES FOR SALVAGING BLOOD

摘要

Methods and apparatuses for salvaging blood from a patient are disclosed. A bloo d salvaging circuit (140) coupled to a cardiopulmonary bypass circuit (144) includes a hemoconcentrator (152) and a sor bent-containing plasma separator. A combination device (142) for salvaging blood includes a closed plasma chamber (172) containing a pl asma chamber solution (176), a hollow fiber plasma-separating membrane (156) for receiving blood and permitting plasma to be transported therethrough into the plasma chamber solution (176) and for refiltering the treated plasma back into the blood salvaging circu it (140), a selective sorbent (180) for contacting the selected solute in the plasma and binding the selected solute and an ultrafiltration memb rane (184) for removing water, fluids and low molecular weight components from the plasma.