GRANULAR BIOMATERIAL FOR TISSUE REPAIRING AND PREPARATION METHOD THEREOF

摘要

A granular biomaterial for tissue repairing and the preparation method thereof are provided. A film biomaterial prepared from one or at least two selected from cellular tissue matrices, collagen, chondroitine sulfate, sodium hyaluronate, chitosan, polylactic acid, polyglycolic acid and alginate is frozen-dried, and then is cut into strips under preset parameters and normal temperature. At last, the biomaterial is cut into granules which have a diameter range of 60µm-6000μm before being packaged and sterilized. The method is simple and ensures that the grain diameter distribution concentration of the granules is more than or equal to 85%. The granular biomaterial meets the requirements for repairing multiple tissues or organs.