DEVICE AND METHOD FOR PROCESSING BIOLOGICAL FLUID

摘要

A device and method for processing a biological fluid comprises directing the biological fluid to the first surface (16a) of a separation medium (16) such that a plasma-rich fluid passes through the separation medium (16) and a plasma-depleted fluid passes along the first surface (16a) of the separation medium (16). A pulsating reverse pressure differential is created between the first and second surfaces (16a, 16b) of the separation medium (16), and a portion of the plasma-rich fluid is subjected to the pulsating reverse pressure differential and is thereby directed back across the separation medium (16).