METHOD AND APPARATUS FOR DETERMINING ACCESS FLOW

摘要

A method and apparatus for determining a fluid flow rate in a blood access having an upstream position and a downstream position using a blood treatment apparatus including a blood treatment unit having a semi permeable membrane delimiting a first chamber through which blood removed from said blood access passes and a second chamber through which dialysis liquid passes, an arterial line and a venous line, connected to an inlet and an outlet of the first chamber respectively. The method for determining the fluid flow rate involves measurement of the post dialyzer concentration or conductivity before and after a flow reversal. The invention further involves a method for checking the operating configuration of the arterial and venous lines of the blood treatment apparatus.