Collagen sponges we deal in are used for the tissue engineering of different tissues as well as organs. These are suite for the three-dimensional culture of human intervertebral disc cells. There are many clinical uses of the said products. Collagen sponges are included with recombinant bone morphogenetic protein-2. It is placed in the most anterior part, just behind the frontal longitudinal ligament. This is a suitable biodegradable scaffold, which is capable to maintain the viable valve ICs. Its utilization can enhance the capacity of cells as well as regenerates the tracheal tissue.