Hemoperfusion or hæmoperfusion (see spelling differences) is a method of filtering the blood extracorporeally (that is, outside the body) to remove a toxin.
In hemoperfusion, the blood perfuses a filter composed of artificial cells filled with activated carbon or another microporous material.
The adsorbent materials are usually activated-carbon or resins which may be coated or immobilized to prevent fine particles entering the patient's blood.
[3][4] Despite its availability, this technique is only infrequently utilized as a medical process used to remove toxic substances from a patient's blood.
Risk of bleeding is also higher because of the high heparin dose and reduction in platelets and clotting factors.