The Plasorba plasma perfusion column is used in conjunction with a plasma separator for the selective adsorption and removal of bilirubin and bile acid from separated plasma. Plasorba uses anion-exchange resin for absorption and thus requires no supplementary plasma, as necessary in conventional plasma exchange therapy. The risk of infection with hepatitis, AIDS, etc. is thus minimized. In addition, the low priming volume reduces the physical burden on patients during treatment.

Indications for Plasorba use are liver disease such as fulminant hepatitis, postoperative hepatic failure, and hyperbilirubinemia.
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Immusorba TR and Immusorba PH are used in immunoadsorption (IA) systems in conjunction with the plasma separator Plasmaflo to remove antibodies and other pathogenic substances from separated plasma. The IA system requires no replacement fluid such as albumin and therefore is recommended for patients with protein allergy or who worry about infections associated with blood products.
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Immusorba TR is an immunoabsorption (IA) column with tryptophan immobilized in polyvinylacohol gel. It is designed specifically to adsorb antibodies including anti-acetylcholine receptor antibody or immunocomplexes from separated plasma via the hydrophobic and ionic interaction with tryptophan.

Immusorba PH is an immunoabsorption (IA) column with phenylalanine immobilized in polyvinylacohol gel. It is designed specifically to remove and adsorb antibodies including anti-DNA receptor antibody or immunocomplexes from separated plasma via the hydrophobic and ionic interaction with phenylalanine.