Antithrombogenic treatment of surgical articles

AHUMAN NECESSITIES A61Medical science A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL DISINFECTION, STERILISATION, OR DEODORISATION OF AIR CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES

A61L33/00Antithrombogenic treatment of surgical articles

A61L33/0005Use of materials characterised by their function or physical properties A61L33/0011Anticoagulant A61L33/0017using a surface active agent A61L33/0023using a quaternized group or a protonated amine group of the substrate A61L33/0029using an intermediate layer of polymer A61L33/0035using a polymer with positively charged atoms in the polymeric backbone A61L33/0041characterised by the choice of an antithrombatic agent other than heparin A61L33/0047Enzymes A61L33/0052Plasticizers A61L33/0058Stabilizers A61L33/0064Hydrogels or hydrocolloids A61L33/007Porous materials A61L33/0076Chemical modification of the substrate A61L33/0082by reacting with an organic compound other than heparin A61L33/0088by grafting of a monomer onto the substrate A61L33/0094Physical treatment A61L33/02Use of inorganic materials A61L33/022Metal or alloys A61L33/025Carbon; Graphite A61L33/027Other specific inorganic materials not covered by A61L33/022 or A61L33/025 A61L33/04Use of organic materials A61L33/06Use of macromolecular materials A61L33/062Mixtures of macromolecular compounds A61L33/064obtained by reactions only involving carbon-to-carbon unsaturated bonds A61L33/066Rubbers A61L33/068obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds A61L33/08Polysaccharides A61L33/12Polypeptides, proteins or derivatives thereof A61L33/122Collagen A61L33/124Gelatin A61L33/126Fibrin A61L33/128Other specific proteins or polypeptides not covered by A61L33/122 - A61L33/126 A61L33/18Use of ingredients of undetermined constitution or reaction products thereof