Patent ID: 8784862

Claim:
A metal stent, wherein the surface of the stent is coated directly and covalently with a hemocompatible layer, comprising at least one oligosaccharide and/or polysaccharide according to formulas (Ia) or (Ib): wherein n is an integer between 4 and 1050, Y and Z, independently of each other, represent the groups —CHO, —COCH 3 , —COC 2 H 5 , —COC 3 H 7 , —COC 4 H 9 , —COC 5 H 11 , —COCH(CH 3 ) 2 , —COCH 2 CH(CH 3 ) 2 , —COCH(CH 3 )C 2 H 5 , —COC(CH 3 ) 3 , —CH 2 COO—, —C 2 H 4 COO—, —C 3 H 6 COO—, —C 4 H 8 COO—, and salts of said compounds.