Routh nasal prosthesis is swollen, characterized by patented stretching technology, moderate hardness, smooth carving by doctors and natural feeling after operation. The inside of the material is microporous structure, which allows autologous tissue to grow in and form tissue chain, and there will be no problems such as skew, puncture and displacement. The products are of good quality and reasonable price, which are cheaper than other imported brands. Moreover, swelling itself is clinically used as a material for artificial blood vessels and heart valves.