Patent ID: 8523799

Claim:
A method for priming a blood tubing set having a patient side and a filter side, said blood tubing set including a venous line and an arterial line each having a connection at the patient side and a connection at the filter side, said connections of the venous and arterial lines at the patient side being in communication with two separate ports of a chamber of a bag and said connections of the venous and arterial lines at the filter side being in communication with a dialyzer, said venous and arterial lines, said dialyzer and said chamber forming a circuit, said method comprising the steps of: starting the priming by filling of the venous line and the arterial line with priming fluid via a feed line, said priming liquid from said feed line flowing via the venous and arterial lines through the ports into the chamber, the chamber being empty at the start of the priming; and circulating the priming liquid in the circuit of the venous and arterial lines, the dialyzer and the chamber via a pump so that one of the ports of the chamber acts as an inlet and the other as an outlet.