SELECTIVE MEMBRANE/SORPTION TECHNIQUES FOR SALVAGING BLOOD

摘要

Methods and apparatuses for salvaging blood from a patient are disclosed. A blood salvaging circuit (140) coupled to a cardiopulmonary bypass circuit (144) includes a hemoconcentrator (152) and a sorbent-containing plasma separator. A combination device (142) for salvaging blood includes a closed plasma chamber (172) containing a plasma 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 circuit (140), a selective sorbent (180) for contacting the selected solute in the plasma and binding the selected solute and an ultrafiltration membrane (184) for removing water, fluids and low molecular weight components from the plasma.