Patent ID: 7125860
Filing Date: 2006-10-24
Classification: A61K,A61L,A61P,C08B

Abstract:
1. A cross-linked derivative of partially N-deacetylated hyaluronic acid or derivatives thereof, comprising at least one repeating unit of formula (I): wherein R R R is OH, O the groups R the groups R the said hyaluronic acid derivatives are selected from the group consisting of: partial esters of hyaluronic acid esterified with aliphatic, aromatic, arylaliphatic, cycloaliphatic, or heterocyclic alcohols; hemiesters of succinic acid or heavy metal salts of the hemiesters of succinic acid with hyaluronic acid or with partial esters of hyaluronic acid; O-sulphated hyaluronic acid and derivatives thereof; amides of hyaluronic acid or a derivative thereof with an aliphatic, aromatic, arylaliphatic, cycloaliphatic, or heterocyclic amine; percarboxylated hyaluronic acid and derivatives thereof; and hyaluronic acid salts with heavy metals.