Cross-linked hyaluronic acids and medical uses thereof

Abstract From the Canadian patent

New cross-linked hyaluronic acids obtainable by reaction of activated carboxylic groups of native linear hyaluronic acid of extractive or , biosynthetic source with a polyamine, particularly a linear alkyl diamine. The cross-linked hyaluronic acids of the invention can optionally be sulphated or hemisuccinylated and are useful as substitutes of synovial fluid vitreous , humor, as controlled-release matrices forms medicaments as healing and , antiadhesive agents, and for the preparation of vascular prosthesis biohybrid , organs, healing devices, ophthalmic and otological compositions prosthesis, implants and medical devices.