Patent ID: 8258117

Claim:
A self-gelling and injectable polymer composition intended for repairing or regenerating a cartilaginous tissue in a patient in need thereof, comprising i) a polymer solution admixed with ii) blood or a component thereof, wherein the polymer solution comprises a) a polysaccharide, and b) a buffering solution for dissolving the polymer therein, wherein the temperature of the composition is below 20° C, said polymer solution having a pH between 6.5 and 7.8, and an osmolarity value between 250 and 600 mOsmL and further wherein the polymer solution is admixed with the blood or a component thereof prior to injecting the composition at the surface of the cartilaginous tissue of the patient in need of cartilage repairing or regeneration wherein the composition is converted into a non-liquid state in time or upon heating.