| abstract |
A medical device, for example a stent, has a surface which in use contacts body tissue, wherein said surface has on it a biocompatible coating layer comprising a polymer having covalently bound allyl-terminated pendent groups, said pendent groups comprising a moiety selected from -0-CH2-CH=CH2 -S-CH2-CH=CH2 -S (=0) -CH2-CH=CH2 -Se-CH2-CH=CH2 and -Se (=0 J-CH2-CH=CH2. This surface has good biocompatibility and can bind strongly to a metallic surface. The polymer may be made from an electropolymerisable monomer, e.g. a pyrrole. |