Patent ID: 7074424
Filing Date: 2006-07-11
Classification: A61L,C08L

Abstract:
1. A polymeric composition comprising a mixture of a) a solution of at least one polymerizable macromer having a first viscosity, comprising at least one polyalkylene glycol (PAG) region and at least one or more chemically reactive groups which react spontaneously or under the influence of activating conditions to form polymeric structures; and b) a solution of at least one PAG-interacting polymer (PIP) having a second viscosity in an amount sufficient to form the mixture with a viscosity greater than the sum of the first and the second viscosities, wherein the composition contains between 0.05% to 20% by weight of the PIP, and between 4% to 30% weight of the polyalkylene glycol or PAG-based macromer, and provided that when the PIP is a hyaluronic acid, the hyaluronic acid has an average molecular weight of about 150 k Da or more.