Filter coated with chitosan for removal of leucocytes
AssigneeKorea Institute of Science and Technology
InventorsJae-Jin Kim, Sang-Bong Suh, Byung-Ok Jung
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Abstract
Filter for removal of leucocytes is provided, wherein the filter is coated with a natural polymer of chitosan which has a good blood compatibility and no side effect in human body on an ultrafine non-woven fabric. This blood filter provides a high removal rate of leucocytes as well as good recovery of platelets and red blood cells due to secondary filtration through electrostatic power between a leucocyte and a cationic residue provided by chitosan on the surface of the non-woven fabric.
Claims2
A filter for removal of leucocytes comprising non-woven fabric wherein the surface of the non-woven fabric is coated with a coating consisting essentially of chitosan having a deacetylation degree of 85 to 95% and an average molecular weight of 200,000 to 700,000 and wherein the non-woven fabric comprises natural or synthetic fiber having not more than 3 μm of pore size.
Dependencies are inferred from the claim text.