the blood and or csf as shown the delivery tube 6 comprises a helical coil with reference to fig2 when the treatment includes the administration of a designer antibody the delivery tube 6 can be hollow and the interior wall 9 can define a plurality of holes 21 the designer antibodies can be pumped through the delivery tube 6 in order to effect a desired concentration of designer anti bodies in the body fluid the designer antibodies can perfuse through the holes 21 the delivery tube 6 can include any suitable material including for example metal plastic ceramic or combinations thereof the delivery tube 6 can also be rigid or flexible in one embodiment the delivery tube 6 is a metal tube perforated with a plurality of holes alternatively the delivery tube 6 can be plastic the antibody with attached albumin moiety targeting the ms antigen s can be delivered in a concurrent or counter current mode with reference to the body fluid in counter current mode the body fluid enters the treatment chamber 5 at the inlet 3 the designer antibody can enter through a first lead 8 near the outlet 4 of the treatment chamber 5 the body fluid then passes to the outlet 4 and the designer antibodies pass to the second lead 7 near the inlet 3 the removal module of the second stage substantially removes the designer antibodies ms antigen molecular compound from.